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Contractor payment taxes: an employer's guide to responsibilities

Mike Smirnov
AuthorMike SmirnovHead of Marketing
Anna Gvozdeva
EditorAnna GvozdevaHead of Content
Last updated 04.10.2026
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Contractor payment taxes: an employer's guide to responsibilities
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Contents

Key takeaways

Contractor tax treatment starts with the real engagement. The working relationship, parties and jurisdictions involved determine the company’s reporting, withholding and recordkeeping duties.

  • Classify the working relationship before choosing tax forms. For US federal purposes, the relevant facts concern behavioural control, financial control and the relationship between the parties; an agreement is one of several relationship facts. A worker who is an employee can create employer withholding and employment-tax duties that generally do not apply to an independent contractor.
  • Collect the facts that route the payment to the right tax question. Record the contracting entity, the recipient’s legal and tax status, whether the engagement is direct or through an intermediary, and where the services are performed. In the US, personal-service income is generally sourced where the work is performed, regardless of where the payer or contract sits.
  • Apply US reporting rules after that intake. For covered nonemployee-service payments made in 2026, the Form 1099-NEC threshold is $2,000. It was $600 for payments made before 2026. Recipient type, payment channel, US or foreign status, and any backup withholding can change the reporting or withholding path.
  • Keep country rules in their own lanes. UK off-payroll duties concern services supplied through a worker’s intermediary where the worker would have been an employee if engaged directly, and the client’s size and place in the chain matter. For EU B2B services, the general VAT place-of-taxation rule follows the customer’s establishment, subject to exceptions. Apply each rule only to the engagement it covers.
  • Treat the tax decision as a record you maintain. Keep the status rationale, identity and location facts, agreement, work approval, invoice and payment evidence together. Revisit the treatment when the contract or day-to-day work changes; a change in practice can matter as much as a change in paperwork.

Start with the worker's status and the engagement structure

Before finance selects a tax form or a reporting route, establish what work is actually being done and who is contracting to do it. The answer may change the company’s obligations, so keep the facts behind it with the engagement record.

Test the working relationship, not the contract label

For US federal purposes, worker status turns on evidence about behavioural control, financial control and the relationship between the parties. A document called an “independent contractor agreement” belongs in that picture, but it does not decide the result on its own.

Start by recording how the work operates in practice. Capture the facts that show who directs the work, the financial arrangements around it, and the ongoing relationship. That gives finance, people operations and advisers the same starting point when they later consider employment-tax, withholding or information-reporting questions.

The distinction has practical consequences. Under US federal rules, an employer generally has withholding and employment-tax duties for employee wages, while payments to independent contractors generally do not carry those duties. The classification still needs to match the real relationship; calling a role a contractor role does not settle it.

Distinguish a direct contractor from an intermediary

Next, identify the contractual path. Is the company engaging the individual directly, or are services supplied through that worker’s own intermediary? That detail can determine whose obligations you need to examine and which records belong with the payment.

The UK off-payroll rules show why the distinction matters. They concern a worker who supplies services through an intermediary where the worker would have been an employee if they had supplied those services directly. It is a defined UK scenario, not a label to apply automatically to every UK contractor.

Where the UK rules are relevant, the client’s circumstances matter as well. Client-side duties apply to public-sector clients and medium or large private and voluntary-sector clients; for small private clients, status determination generally remains with the worker’s intermediary. Record the parties in the chain before assigning a status-decision or fee-payer responsibility.

Know when a status decision needs outside review

An internal assessment should not become a permanent answer simply because the agreement remains open. Revisit it when the duties change, the working arrangement no longer matches the contract, or the worker challenges the treatment. A 2017 HMRC/NatCen study of UK SMEs found that status was sometimes reconsidered after work began for those reasons; it does not measure a general misclassification rate.

Use the process available in the jurisdiction that governs the engagement when uncertainty remains material. In the US, the IRS offers Form SS-8 for a federal employment-tax determination on a specific worker. In Germany, either contracting party can apply to the Deutsche Rentenversicherung status procedure to clarify whether a particular assignment is self-employment or dependent employment. The German Clearingstelle assesses individual cases using the documents, statements and applicable law.

Keep the original facts and the reason for the decision, then set a review point for changed work or terms. That record makes it possible to revisit the classification with the actual engagement in view instead of reconstructing it from a contract title after a problem appears.

Map the people, entities and places involved

The recipient, contracting company and place of work can each change the tax question. Record all three before finance selects a reporting, withholding or VAT treatment.

Decision tree starting with mapping the engagement, then three checks: working relationship and contract path, recipient and contracting entity, and actual service and customer locations.
Use these facts to identify the applicable jurisdiction and payment rule. The diagram does not determine a tax outcome for every contractor engagement. Internal Revenue Service: Worker classification · Internal Revenue Service: Source of income — personal service income · HM Revenue & Customs: Off-payroll working for clients · European Commission: Place of taxation

The intake is a way to identify the rule you need to check. It does not produce a universal tax outcome: the relevant facts and the governing rule still depend on the engagement and jurisdiction.

Identify the contracting entity and contractor's legal form

Start with the legal entity that signed the agreement and the recipient named on the invoice. Then establish whether the recipient is an individual, an incorporated business or an intermediary, along with the tax identity documentation that applies to that recipient. Link each payment to those legal parties, not just a project name or payment-system profile.

For US information-return work, Form W-9 is used to obtain a US payee’s correct name and taxpayer identification number. A W-9 is for a US person; a foreign beneficial owner generally provides the appropriate Form W-8, subject to the payment and certification type. That distinction belongs in the intake before a domestic reporting process is assumed.

Recipient form can matter too. US information-return rules generally do not require a return for a payment to an incorporated business, subject to stated exceptions for medical and legal services. Record the recipient’s legal form rather than treating every contractor invoice as though it came from the same type of payee.

Record where the services are actually performed

For US personal-service income, the place where services are performed generally determines the source of that income. The payer’s residence, where the contract was signed and where payment was made do not displace that general rule. Ask where the contractor performed the work, and retain an answer that can be matched to the engagement period.

Split-location work needs its own record. When services are performed partly inside and partly outside the US, income generally requires an accurate allocation, usually by service days, with exceptions possible. A single country on an invoice may therefore be less useful than a clear account of where the work took place.

Service location starts the source analysis. A treaty can exempt particular US service income of a nonresident alien, so US source alone does not settle whether withholding applies. Escalate a treaty question with the worker’s status, work-location facts and payment details together.

Separate tax residence, service location and customer location

These locations answer different questions. Tax residence may matter when a rule or treaty refers to the recipient’s status. Service location is central to the US source rule for personal services. Customer location can matter for a separate VAT analysis. Do not replace one fact with another because the company has already collected an address or a tax form.

For EU B2B services, the general VAT place-of-taxation rule uses the customer’s establishment, but the directive includes exceptions. The person who is liable for VAT is a separate question: the supplier is usually liable, while specified cases can put the customer under a reverse-charge treatment.

Keep the three fields in the payment record and update them when the engagement changes. That gives the company a workable basis for the later jurisdiction-specific checks on income source, reporting, withholding and invoice VAT treatment.

Determine the company's tax duties

Once the company has the status, party and location facts, it can identify the reporting, withholding and invoice-tax rules that apply. Start with the jurisdiction that governs the payment and keep each country’s branch separate; a familiar form or threshold from one branch does not answer the next one.

United States: reporting and withholding depend on the recipient and work

For US federal purposes, an independent-contractor payment generally does not carry the employer withholding and employment-tax duties that apply to employee wages. That general treatment does not remove the company’s information-return, documentation or exception checks. The recipient’s US or foreign status, legal form, payment channel, service location and payment year can each affect the next step.

W-9, Form 1099-NEC and the reporting threshold

Collect the payee’s tax identity before the reporting decision. Form W-9 is used to obtain a US payee’s correct name and taxpayer identification number for information returns. A foreign beneficial owner generally provides the appropriate Form W-8 instead, subject to the payment and certification type.

For covered nonemployee-service payments made in 2026, the Form 1099-NEC threshold is $2,000. The earlier threshold of $600 applies to payments made before 2026, and the threshold after 2026 is inflation-adjusted, so finance should check the rule for the relevant payment year.

The amount is only one condition. A Form 1099-NEC is required when federal income tax was backup-withheld, regardless of the payment amount. Payments to incorporated businesses generally do not require a US information return, subject to the stated medical- and legal-services exceptions. Payment-card and third-party-network settlement transactions follow a separate Form 1099-K reporting channel.

Foreign status, US-source services and backup withholding

Do not send every contractor payment through a domestic 1099 checklist. A W-9 can only be used by a US person; the foreign-recipient documentation branch requires its own review. Nonemployee compensation paid to a nonresident alien can be reported on Form 1042-S, and withholding may be required.

Where the work was performed also belongs in that review. For personal services, US source generally follows the place of performance, and a treaty can exempt particular US service income of a nonresident alien. Those conditions mean that neither a US customer nor a foreign address settles the treatment by itself.

Backup withholding is another separate control. When a listed trigger applies, such as a failure to furnish a taxpayer identification number, the payor must deduct, withhold and deposit 24% of reportable payments until the cause is remedied. Route missing or incorrect tax identity information for resolution before treating a payment as routine.

United Kingdom: off-payroll duties depend on the intermediary and client

The UK off-payroll rules apply where a worker supplies services through their own intermediary and would have been an employee if engaged directly. They are not a rule for every UK contractor. Public-sector clients and medium or large private and voluntary-sector clients fall within the client-side rules; for small private clients, status determination generally remains with the worker’s intermediary.

An in-scope client must take reasonable care, keep detailed records of its determinations and fees, provide a disagreement process, and recheck the decision when the contract or working practices change. The company needs to identify its place in the contractual chain before it assigns the tasks that follow.

Status determination and the fee payer

For an in-scope engagement, the client must send a Status Determination Statement to the worker and its contractual counterparty. The statement must give both the conclusion and the reasons for reaching it. Treat that explanation as an operating record, not a checkbox attached after a payment decision.

The applicable chain also identifies the deemed employer and fee payer. On a deemed direct payment, the deemed employer deducts Income Tax and employee National Insurance contributions, and pays employer National Insurance contributions. That responsibility brings a payment into a different operating timetable from an ordinary accounts-payable process.

the fee payer will now be working to payroll deadlines rather than accounts payable deadlines

— Kate Upcraft, vice chair of the ICAEW Employment Taxes and NI committee

Deductions, disputes and corrections

Where the off-payroll rules apply, build the deduction, reporting and correction steps into the payment workflow. A deemed employer can use PAYE software to correct an error in a previous PAYE or Real Time Information submission.

The disagreement process also has a timetable. An in-scope client must respond to a worker’s or deemed employer’s status disagreement within 45 days, while continuing to apply the original determination during the review. Preserve the original reasons, the challenge and the response alongside the payment record.

European Union: check national status rules and VAT treatment

For an EU engagement, employment-status and social-insurance questions require the relevant national rules and the actual facts of the assignment. A status label used in another country does not resolve that local analysis.

VAT is a separate branch. For B2B services, the EU’s general place-of-taxation rule uses the customer’s establishment, while the VAT Directive provides exceptions. The place of taxation and the person liable for VAT are not the same question: the supplier is usually liable, but specified cases place the liability on the customer through reverse charge.

Before approving an invoice, retain the customer location, service type and parties’ VAT details, then check the applicable treatment for that transaction. This prevents a general B2B rule from being applied without the exceptions or liability question that can change the result.

Explain what remains the contractor's responsibility

The company’s reporting or withholding analysis does not settle the contractor’s individual tax position. Give the contractor accurate payment and engagement records, but keep the company’s payer duties distinct from the worker’s own filing, income-tax and social-contribution obligations.

Income tax and social contributions

US federal rules generally do not require a company to withhold or pay taxes on payments to independent contractors, subject to exceptions. The contractor’s own income-tax and social-contribution position remains a separate question.

For a US worker who is self-employed, self-employment tax is separate from income tax and covers Social Security and Medicare. Whether it applies, and how much tax the individual owes, depends on that worker’s own filing facts. The contractor needs to assess those facts under the rules that govern their own position.

Keep that handoff clear in internal communications. Finance can explain the payment record and the company’s reporting treatment, while the contractor remains responsible for obtaining advice on their personal income-tax and contribution position where needed.

Estimated tax, filings and deductible expenses

For US individuals, including sole proprietors, estimated-tax payments are generally required when they expect to owe $1,000 or more when their return is filed, subject to exceptions. That is an individual payment rule; it is not a fixed amount that every contractor must pay during the year. A US sole proprietor reports business income and expenses on Schedule C (Form 1040). When total net self-employment earnings from all businesses are $400 or more, the sole proprietor uses Schedule SE (Form 1040) to figure self-employment tax; other filing conditions can still apply below that amount.

The gross fee is not automatically the contractor’s taxable profit. For a US sole-proprietor business, an expense generally needs to be ordinary and necessary to be deductible, and the personal part of a mixed business and personal cost is generally not deductible. In the UK, a sole trader registers through Self Assessment when the registration conditions apply, including earnings over £1,000 in a tax year. A UK self-employed sole trader or individual partner deducts allowable business running costs to calculate taxable profit, while personal-use withdrawals are not allowable expenses.

Keep the legal form in view. UK limited-company owners do not use sole-trader self-employment expense rules simply because they own and work in the company. The contractor’s own filing route, expense rules and tax calculations follow their facts and status; the company’s payment record does not decide them.

The company can support an orderly handoff by giving the contractor a clear record of payments and by correcting its own information promptly when an engagement record is wrong. Avoid promising a personal tax outcome, a deduction or a filing result without the contractor’s complete circumstances and the applicable rule.

For cross-border engagements, preserve the same separation. The company still has to determine its own payer, reporting and withholding duties, while the contractor’s residence, work pattern and individual circumstances can affect the contractor’s personal position. Escalate specific personal-tax questions to the appropriate qualified adviser rather than treating a company payment process as a complete individual tax assessment.

Keep records that support each tax decision

A payment record should show more than an amount and a payee. It should make the company’s treatment understandable later: what facts it relied on, which rule it applied, who made the decision and what would cause a review. The sequence below draws on US and UK guidance; local recordkeeping rules still govern.

Five-step process: record status reasoning, collect recipient tax identity, connect the invoice to approved work and payment, record the rule and owner, then reopen the decision when facts change.
This is an operating record sequence built from US and UK guidance, not a universal recordkeeping rule. Apply the relevant local requirements to each engagement. Internal Revenue Service: Instructions for Form W-9 · Internal Revenue Service: What kind of records should I keep? · HM Revenue & Customs: Off-payroll working for clients · HM Revenue & Customs: Record keeping for off-payroll working

Before work begins: status facts, terms and tax identity

Open the file with the engagement facts behind the worker-status decision: the work arrangement, contract path, contracting parties and reasons for the conclusion. Add the agreement and the responsible owner for the decision. Keep the supporting status facts beside the contract title.

Collect the recipient’s tax identity at the same point. For US information-return purposes, Form W-9 obtains a US payee’s correct name and taxpayer identification number. A foreign beneficial owner generally gives the appropriate Form W-8, subject to the payment and certification type. Store the form that matches the recipient when collecting their details, ahead of year-end reporting.

For an in-scope UK off-payroll engagement, the record has defined elements. The client must provide a Status Determination Statement that gives its conclusion and reasons to the worker and its contractual counterparty. HMRC record guidance also names the reasons for the determination, the statement or tool output, and evidence that it was passed on.

At each invoice: work, approval and accounting evidence

Connect each invoice to approved work and to the payment that settled it. For US business-expense support, the records should identify the payee, amount, proof of payment, date and a description of the service that shows its business purpose. An invoice is useful evidence, but it is stronger when the approval and payment proof travel with it.

Make the link usable by someone who was not involved in the original engagement. A payment entry should lead back to the agreement, the service period, the approval record, the invoice and the tax identity held for the recipient. That gives finance a practical audit trail when it prepares an information return, reconciles an account or needs to explain a treatment.

Keep the facts and the tax decision distinct. The invoice and payment evidence show what happened; the separate decision record explains why the company used a particular reporting, withholding or VAT branch. Joining them avoids reconstructing the rationale from a payment description after the fact.

After changes: reasons, decisions and review dates

Set a review date and reopen the record when the contract, working practices, recipient information or relevant location changes. For UK off-payroll rules, an in-scope client must recheck a determination when working practices change or a new contract is negotiated. The record should preserve both the earlier decision and the facts that made a fresh review necessary.

Where a worker or deemed employer challenges an in-scope UK determination, retain the disagreement and its outcome. HMRC guidance specifically names records of disagreement outcomes alongside the determination, supporting output and delivery evidence. Apply those requirements to UK cases and the relevant local rule elsewhere.

Assign an owner to each open review and record the result, reason and effective date. That turns document retention into a decision history that finance, people operations and advisers can follow when the engagement develops over time.

Compare lawful engagement costs and business deductions

Start a contractor-versus-employee comparison with lawful status and jurisdictional duties. Then compare the company’s actual cost, the worker’s payment position and the administration required to support the arrangement.

Compare company cost and worker outcome on the same facts

Use the same role, working arrangement, location and engagement period for both sides of the comparison. Under US federal rules, employee wages generally bring employer withholding and employment-tax duties, while independent-contractor payments generally do not, subject to exceptions. Check classification carefully and use the engagement’s own facts to calculate each side.

Include the applicable payer duties in the company-side calculation. In a UK off-payroll chain where the rules apply, the deemed employer deducts Income Tax and employee National Insurance contributions from the deemed direct payment and pays employer National Insurance contributions. Include those duties in the full cost of the applicable engagement.

On the worker side, compare the timing and components of compensation on the same facts. US employers generally withhold income tax from employee wages, while payers generally do not withhold from payments to self-employed individuals; the worker may therefore need estimated-tax payments. For a US self-employed individual, business income minus business expenses gives net profit or loss. The quoted fee alone leaves out that calculation and other take-home-pay facts.

Include benefits that are actually offered and their cost to the worker. US federal classification guidance counts employer-provided benefits such as insurance, pension, vacation pay and sick pay among relationship facts. A US freelancer, consultant or independent contractor without employees can seek individual Marketplace health coverage; any premium assistance depends on income and household size. Compare the specific coverage, contribution and cash terms in the proposed engagement to assess the worker’s outcome.

Add the cost of administering the decision. In a 2022 evaluation of UK public-sector off-payroll reform, 64% of sites and 51% of central bodies reported no gross hourly-rate effect for personal service company contractors working before and after reform; 28% of sites and 38% of central bodies reported increases. These self-reports describe that UK public-sector setting and do not establish a causal effect or general savings estimate.

The same evaluation found that, among respondents reporting ongoing costs, staff time spent making working-status determinations accounted for 57% of those costs at sites and 54% at central bodies. Budget for the internal work required by the actual engagement; the reported percentages describe the UK public-sector sample.

Substantiate the business expense

Deductibility and payment approval require a record that connects the cost to business activity. For US business-expense support, the supporting documents should identify the payee, amount, proof of payment, date and a description of the service that shows the business purpose.

An invoice provides one part of the support for a business deduction. Keep the approved scope of work, invoice, payment proof and service description together so the company can substantiate the relevant elements of the cost. Those documents also make it easier to reconcile the expense with the engagement and tax decision already on file.

Apply the deduction and recordkeeping rules that govern the company and transaction. A complete contractor file supports separate deductibility and classification analyses.

Screen cross-border tax exposure before scaling

A contractor working across borders can create questions beyond the payment itself. Screen the engagement before expanding it: where services are performed, where the customer is established, what the contractor actually does for the company and which local rules or treaty provisions apply. The screen identifies issues for local and treaty review.

VAT or sales tax on the service

Start with the parties, the service type and the customer’s establishment. For EU B2B services, the general VAT place-of-taxation rule uses the customer’s establishment, but the directive provides exceptions. Record the service facts needed to test the directive’s exceptions alongside the customer’s establishment.

Then identify who is liable for any VAT due. Under the EU framework, the supplier is usually liable, while specified situations make the customer liable under reverse charge. Place of taxation and the person liable are separate checks, so an invoice review should address both before the company assumes a VAT treatment.

US sales-tax treatment needs a state and service-category check. New York, for example, generally exempts sales of services from state sales tax unless a service is specifically taxable. Its guidance distinguishes accounting services, which it gives as a nontaxable example, from computer repair, which it identifies as a taxable service. That New York example leaves other states and particular invoices for their own review.

Before applying a sales-tax treatment, identify the jurisdiction and the actual service supplied. Tax treatment turns on the jurisdiction and the service category as well as the engagement facts.

Permanent establishment and authority to bind the company

Screen the contractor’s actual authority and activities before the engagement becomes routine or expands into a new country. Under Article 12 of the OECD Multilateral Instrument, a dependent-agent screen includes habitually concluding contracts or habitually playing the principal role that leads to contracts routinely concluded without material modification by the enterprise.

Overseas contractors should not have authority to act on behalf of the company; or to conclude contracts for or otherwise bind the company.

— Penny Simmons, Legal Director, Pinsent Masons

This is a reason to capture the contractor’s role in sales, negotiation and contracting, then escalate material authority for country-specific review. Article 12 applies only where it modifies the relevant Covered Tax Agreement, and it includes an ordinary-course independent-agent exception. It cannot by itself establish a permanent establishment in a particular country.

Keep the screen current as the contractor’s responsibilities change. A contractor who gains a role in negotiating or closing business may require a fresh review even if the payment process and contract rate stay the same. The local law, treaty pair and applicable MLI positions are the evidence needed for a named-country conclusion.

Reassess and correct when the facts change

A contractor tax decision needs another look when its underlying facts change. Put review triggers and owners into the engagement record so a changed role, contract or reporting rule reaches the right person before it becomes a filing or payment error.

Changes that trigger a fresh classification review

Reopen the assessment when the working practices change, a new contract is negotiated or the role begins to differ from the agreement. For in-scope UK off-payroll engagements, the client must recheck the decision when working practices or the contract change. HMRC’s CEST tool can also be used to check how a changed contract or working arrangement affects an earlier result, provided the answers remain accurate.

There can be a clear contract for services (i.e. self-employed) but the terms of the arrangement must be reflected in practice.

— Nick Bustin and Dinesh Pancholi, employment-tax specialists at haysmacintyre

Treat a worker challenge as a trigger too. In a 2017 HMRC/NatCen study of UK SMEs, status was sometimes revisited after work began because the role differed in practice from the contract or a worker questioned the treatment. The study does not estimate a general misclassification rate, but it shows why the original file should be easy to reopen.

Review other time-sensitive inputs as well. For example, the US Form 1099-NEC threshold after 2026 is inflation-adjusted, so the company needs to check the rule for the relevant payment year rather than carrying forward a prior-year amount.

Owners for reporting, reconciliation and escalation

Give each trigger a named owner: someone to gather the changed facts, someone to decide whether the tax treatment changes, and someone to carry the resulting update into reporting and reconciliation. Keep the earlier conclusion, the new evidence, the decision, the effective date and the person accountable in one record.

For an in-scope UK status disagreement, the client must respond to the worker or deemed employer within 45 days and continue to apply the original determination while reviewing it. That makes a clear escalation route essential: the deadline, records and interim treatment need to reach the people responsible for the engagement and payment process.

Correct reporting through the applicable process when an error is identified. A UK deemed employer can correct an earlier PAYE or Real Time Information submission using PAYE software. Elsewhere, confirm the jurisdiction-specific correction route before changing a return, payment or invoice treatment.

Frequently asked questions

Do companies always withhold tax from contractor payments?

No. Under US federal rules, companies generally do not withhold or pay taxes on payments to independent contractors, subject to exceptions. Employee wages generally carry employer withholding and employment-tax duties instead. The company still needs to check its reporting and documentation obligations, and backup withholding can apply when a listed trigger, such as a missing taxpayer identification number, applies.

Does a US customer make a foreign contractor's work US-source income?

No. For personal services, US source generally follows where the work is performed, regardless of the payer’s residence, the contract location or where payment is made. If services are performed partly inside and partly outside the US, an accurate allocation is generally required. A treaty can also exempt particular US service income of a nonresident alien, so source alone does not settle withholding.

Is the 1099-NEC threshold still $600?

For covered nonemployee-service payments made in 2026, the Form 1099-NEC threshold is $2,000. The $600 threshold applies to payments made before 2026. After 2026, the threshold is inflation-adjusted, so check the rule for the payment year. The amount is not the only condition: a Form 1099-NEC is required when federal income tax was backup-withheld, regardless of the payment amount.

Can a business deduct contractor payments?

A business needs adequate records or other sufficient evidence to substantiate an expense. For US business-expense support, retain the payee, amount, proof of payment, date and a description of the service that shows the business purpose. An invoice alone may not establish deductibility, so connect it to the approved work and payment evidence.

Can an employee simply switch to a contractor agreement?

Changing the agreement alone does not decide US federal worker status. The assessment considers behavioural control, financial control and the relationship between the parties; a written agreement is one relationship fact. Review how the work will operate in practice before selecting the tax treatment.

Does IR35 apply to every UK contractor?

No. The UK off-payroll rules concern services supplied through a worker’s own intermediary where the worker would have been an employee if engaged directly. Client-side duties apply to public-sector clients and medium or large private and voluntary-sector clients; for small private clients, status determination generally remains with the worker’s intermediary. Check the intermediary, the client and the working relationship before applying the rules.

Sources