UK Tax Residency for Remote Workers and Contractors
Working remotely from abroad doesn't automatically mean you're non-UK-resident. Where you physically work is what matters - not where your employer is. Here's what the SRT says.
For remote workers and contractors, the most important thing to understand about UK tax residency is this: the SRT cares about where you physically are when you work, not where your employer or clients are based.
If you live in Berlin and work from your apartment for a London agency, that is overseas work. If you fly to London for a week of client meetings and work for more than 3 hours on each day, those are UK working days. The location of your employer is irrelevant to your UK residence status.
Key points
- Work is assessed by physical location - a UK employer does not make your overseas work into UK work
- Working more than 3 hours in the UK on a given day = a UK working day for SRT purposes
- The third automatic overseas test allows up to 30 UK working days and 90 UK days total
- The work tie (40+ UK working days) is a separate, lower-stakes threshold that affects the sufficient ties test
- Working from a laptop at your parents' house while visiting counts as UK work if you exceed 3 hours
Where the law places your work
HMRC is explicit on this point (RFIG20770): work is done at the location where it is physically performed, not where the employment is held or the trade is carried on.
Examples from HMRC:
- A French employee who works from Glasgow for two days a month is working in the UK on those days - regardless of being employed by a French company
- Work done on a flight to the UK counts as overseas work until you disembark; the moment you step off the plane, you are in the UK
- Work done on the Eurostar from Paris counts as overseas until you get off at St Pancras - then it becomes UK work
For remote workers this has a direct consequence: logging into your work laptop in the UK is UK work. Attending a UK client call from a UK hotel room, checking emails for four hours from your parents' house, or attending a UK-based video call while physically present in London all count.
The 3-hour threshold
The SRT threshold for a "UK working day" is working more than 3 hours in the UK on a given day (RFIG20740).
This threshold applies in three places:
- The third automatic overseas test: you must have fewer than 31 days on which you work more than 3 hours in the UK
- The work tie: you acquire a work tie if you work more than 3 hours in the UK on 40 or more days
- The third automatic UK test (for arrivals): more than 75% of your working days must be UK days
What counts as "work"? It takes its everyday meaning: activities carried out in the performance of your employment duties, or in the course of your trade if self-employed (RFIG20740). This includes:
- Job-related training paid for by your employer
- Travel time where the cost would be a deductible business expense
- Time spent under employer instruction (including paid notice periods or garden leave)
Under 3 hours of UK work on a given day is a non-event for SRT purposes - though it may still affect your UK taxable income.
Route 1: Passing the third automatic overseas test
If you work full-time overseas and visit the UK only occasionally, the third automatic overseas test (RFIG20140) is your clearest path to non-residency. You pass it if:
- You work full-time overseas during the tax year - averaging at least 35 hours of overseas work per week across the reference period
- No significant break from overseas work - no 31+ consecutive days where you do no overseas work (excluding annual, sick, and parental leave)
- Fewer than 31 UK working days - days on which you work more than 3 hours in the UK
- Fewer than 91 UK days in total
Pass all four conditions and you are non-resident, regardless of how many UK ties you have.
What "full-time overseas" means in practice
The sufficient hours test (RFIG20150) averages your overseas hours over the reference period:
- Identify all days you worked more than 3 hours in the UK (disregarded days)
- Add up all actual overseas hours worked, excluding hours on disregarded days
- Subtract disregarded days and employment gaps from 365 to get the reference period
- Divide the reference period by 7 (round down)
- Divide net overseas hours by the result - if the answer is 35 or more, you meet the test
A straightforward full-time remote worker averaging 37 hours per week overseas will easily pass this. The test becomes harder if you have irregular hours, a career break mid-year, or a mix of employed and self-employed income.
The significant break trap
A significant break from overseas work occurs when 31 or more consecutive days pass without any overseas work - and those days are not annual leave, sick leave, or parental leave (RFIG20760).
For a remote worker, this most commonly happens when:
- You take unpaid leave or a sabbatical
- You switch jobs and have a gap between contracts
- You return to the UK for an extended period and stop doing overseas work entirely
If you have a significant break, you cannot pass the third automatic overseas test for that year.
Route 2: The sufficient ties test
If you cannot pass the third automatic overseas test - perhaps because you exceed 30 UK working days - you fall through to the sufficient ties test.
The number of days you can spend in the UK without becoming resident depends on how many ties you have. One of those ties is specifically about UK work. For a detailed breakdown of how each tie applies to remote workers — including the accommodation tie, 90-day tie, and the country tie for nomads — see the sufficient ties test for remote workers.
The work tie (RFIG20560)
You have a work tie if you work more than 3 hours in the UK on 40 or more days in the tax year. Note the difference from the third automatic overseas test threshold:
| Threshold | Consequence |
|---|---|
| More than 30 UK working days | Fails the third automatic overseas test |
| 40 or more UK working days | Acquires the work tie |
You can therefore exceed 30 UK working days without acquiring the work tie - if you are between 31 and 39 UK working days, you fail the automatic test but do not have the tie. You then rely on your total UK day count and other ties to determine residency.
Worked example: Anya, a contractor in Lisbon
Anya left the UK in 2022 and now lives permanently in Lisbon. She works as a freelance developer for several UK tech companies, entirely from her Lisbon apartment. She was UK resident in 2021–22.
She visits the UK regularly for client meetings. In the 2024–25 tax year, she makes 8 trips to London, spending 2 working days per trip (total: 16 UK working days) plus a few extra personal days - 26 UK days total.
Third automatic overseas test:
- Full-time overseas work from Lisbon? She averages 38 hours per week ✓
- No significant break? No gaps of 31+ non-leave days ✓
- UK working days: 16 (fewer than 31) ✓
- UK days: 26 (fewer than 91) ✓
Anya passes the third automatic overseas test - she is non-resident for 2024–25.
What changes the outcome?
Scenario A: Anya increases trips to 32 UK working days
She fails the third automatic overseas test (more than 30 UK working days). She moves to the ties test.
- Work tie: 32 working days, fewer than 40 → no work tie
- Accommodation tie: she stays in hotels → no accommodation tie
- Family tie: no UK-resident spouse or child → no family tie
- 90-day tie: spent around 45 UK days in 2023–24 (below 90) → no 90-day tie
- Country tie: more days in Portugal than UK → no country tie
0 ties, 45 UK days → still non-resident. The automatic test fails but the ties test saves her.
Scenario B: Anya has 42 UK working days and buys a UK flat
- Fails the third automatic overseas test (more than 30 UK working days)
- Work tie: 42 days ≥ 40 → has work tie
- Accommodation tie: owns a UK flat → has accommodation tie
- 2 ties, 55 UK days total → UK resident (Table A: 46–90 days with 2+ ties = resident)
Anya is UK resident for that year. Her global income is in scope for UK tax.
Scenario C: Anya works from her parents' house during a 3-week Christmas visit
She works from her parents' house for 4 hours a day across 10 working days. Each of those days is a UK working day. Combined with her regular trips, this pushes her closer to the 30-day automatic test threshold - and potentially towards the 40-day work tie threshold.
Remote workers who visit the UK regularly need to track not just their days on-site with clients, but any day they open a laptop and work.
Common scenarios at a glance
| Situation | Key test to check | Risk |
|---|---|---|
| Full-time remote from abroad, occasional UK trips (under 30 UK working days) | Third automatic overseas test | Low - likely passes |
| Full-time remote from abroad, regular UK office days (31–39 UK working days) | Sufficient ties test | Medium - depends on ties |
| Full-time remote from abroad, heavy UK presence (40+ UK working days) | Sufficient ties test with work tie | Higher - other ties can tip into UK residency |
| Foreign national working remotely from the UK full-time | Third automatic UK test | High - likely UK resident |
| Contractor returning to UK for long-term project | Automatic UK tests | High - likely UK resident |
Practical steps for remote workers
Track your UK working days, not just your UK days. The 30-day and 40-day thresholds for UK work are separate from your overall UK day count. Keep a record showing, for each UK visit, the number of hours worked each day. If you want to track your remaining UK days in real time against your threshold, the Day Budget Dashboard updates as you log visits — it shows days used, ties held, and how far you are from each SRT threshold.
The 3-hour rule cuts both ways. Days when you do less than 3 hours of UK work do not count as UK working days for SRT purposes. If you have a UK visit where you attend one short meeting, that day does not count - but keep evidence that you worked less than 3 hours.
Holiday crossover. If you work from your laptop on the morning before a leisure trip to the UK, and you work more than 3 hours, it becomes a UK working day even if you were visiting for personal reasons.
Employment gaps. If you change clients or take time between contracts, check whether the break constitutes a "significant break from overseas work" (31+ consecutive non-leave days). If it does, you cannot pass the third automatic overseas test for that year.
Check your ties annually. The 90-day tie persists for two years after a high-UK-presence year. A work tie can appear in any year you increase your UK client work. Review your position at the start of each tax year, not just when you first leave.
If you are leaving the UK. The year of departure has specific rules around split year treatment and how the third automatic overseas test applies to a partial year. See the leaving the UK tax residency guide for the steps to take before and after you leave.
Use the free SRT calculator to check your full position - it works through the automatic overseas tests first, and then the ties test if needed.
Work out your UK residence status
Our free calculator follows HMRC's RDR3 guidance step by step - automatic overseas tests, automatic UK tests, and the sufficient ties test - and gives you a clear determination with full reasoning you can take to your tax adviser.
Try the free calculatorFurther reading
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