Does IR35 Apply to Offshore Contractors?

If an offshore contractor is not UK tax resident and performs all work outside the UK, IR35 will usually not apply because they are unlikely to be within the UK charge to tax or National Insurance. But a UK company must still check the facts: IR35 can matter if the worker is UK resident, works in the UK, or operates through an intermediary in a UK-taxable engagement. HMRC’s Employment Status Manual is the key source.

When does IR35 not apply to an offshore contractor?

For a UK company hiring a genuine overseas contractor, the practical starting point is simple: where is the worker tax resident, and where are the duties performed?

HMRC says a client does not need to consider the Chapter 10 off-payroll rules where there is no UK tax or NIC liability, and that a worker who is not UK-resident and performs work outside the UK is unlikely to fall within the UK charge to tax or NICs. In that case, the off-payroll working rules will not apply. See HMRC ESM10025.

That means this common setup is normally outside UK IR35:

• the contractor lives and is tax resident outside the UK;
• the contractor performs the work outside the UK;
• they do not travel to the UK to perform duties;
• the engagement is with their overseas company or as a local independent contractor;
• there is no UK PAYE/NIC charge if they were engaged directly.

Do not confuse “offshore company” with “offshore worker.” HMRC says the residency of the worker’s intermediary does not decide whether the off-payroll rules apply; registering a company overseas does not, by itself, take the engagement outside IR35. The worker’s personal tax position and the place where duties are carried out matter more. See HMRC’s guidance on overseas intermediaries.

When can a UK company still have IR35 obligations?

A UK company has a UK connection by definition, so it should not treat every overseas engagement as automatically outside scope. The off-payroll rules apply where a worker provides services through their own intermediary and would be an employee if engaged directly; HMRC describes this core test in its off-payroll working guidance for clients.

For private-sector companies, the client-side rules apply to medium and large clients. HMRC defines medium and large private clients as those meeting at least 2 of 3 conditions: annual turnover over £10.2 million, balance sheet total over £5.1 million, or more than 50 employees. Small private-sector clients generally do not make the status determination; the worker’s intermediary remains responsible. See HMRC’s client guidance.

If the contractor works partly in the UK, do not rely on a broad “offshore” label. HMRC says a worker carrying on duties in the UK for an end client will normally fall within the UK tax charge, though exceptions can apply for short visits and social security certificates. See Tax if you come to the UK and HMRC ESM10025.

What should UK hiring teams document?

Treat this as a short compliance review before signing the contract. Keep the file lightweight but specific.

1. Confirm the worker’s facts

Record the contractor’s tax residence, country of work, expected UK travel, entity used for invoicing, and whether the contractor is working through a limited company, partnership, agency, umbrella company, or as a direct sole trader.

2. Check whether the UK company must issue an SDS

If the UK company is a medium or large private-sector client and the worker provides services through an intermediary, it may need a Status Determination Statement. HMRC says an SDS must give the conclusion and reasons, be passed to the worker and the party the client contracts with, and be prepared with reasonable care. See HMRC’s off-payroll client duties.

HMRC’s CEST tool can help check employment status and whether IR35 applies to an engagement. HMRC says it will stand by CEST results if the information given remains accurate and follows its guidance.

3. Separate IR35 from local-country compliance

Even when UK IR35 does not apply, the contractor’s country may still have rules on employment status, tax withholding, VAT or sales tax, permanent establishment, IP assignment, data protection, mandatory benefits, and termination rights. That is where many remote hiring mistakes happen.

If you are building a distributed engineering team, compare contractor, employer-of-record, and direct employment models before making the first hire. OctogleHire can help companies hire vetted remote engineers from 30+ countries with 4–6 hours of timezone overlap, and every placement includes a replacement guarantee. For broader planning, see global compliance topics, how to hire remote developers, and OctogleHire’s multi-stage vetting process.

Next steps

Use this rule of thumb: non-UK resident plus all duties outside the UK usually means IR35 is not the issue; UK residence or UK duties means check IR35 carefully. Before onboarding, get written confirmation of where the work will be performed, run a status review where required, and take UK tax advice if the contractor will spend any working time in the UK.