Solutions · UK Leavers

You’ve left the UK. HMRC is still counting.

Family visits, a summer back, Christmas at home. Your ties to the UK decide how many of those days you can have, and for most people who’ve left the answer isn’t 183.

Leaving doesn’t end the count

Leaving the UK doesn’t end the UK’s interest in you. Each tax year, from 6 April to 5 April, HMRC’s Statutory Residence Test looks at how many midnights you spent in the UK and what still ties you to it: family here, a home you can use, work, time spent here in earlier years. If the test makes you resident, the UK can tax your income from anywhere, not just from the UK.

The limit isn’t one number. If you were UK resident in any of the last three tax years, it can be as low as 16 days.

What counts as a day

A day in the UK is a day you’re here at midnight. A separate rule can count extra days if you’re here often without staying the night: it applies if you were UK resident in any of the last three tax years, have 3 or more ties, and pass 30 such days.

The automatic tests

If you were resident in any of the last three tax years, fewer than 16 days in the UK makes you non-resident; if you weren’t, fewer than 46. 183 days or more makes you resident. There are also tests for full-time work abroad, full-time work in the UK, and having your only home here.

The year you leave

In the year you leave or arrive, split-year treatment can divide the tax year into a UK part and an overseas part. There are eight cases, each with its own conditions and dates.

Sufficient ties

Between the automatic lines, your ties decide it. There are five: family, accommodation, work, the 90-day tie, and, for leavers only, the country tie.

Source: HMRC, RDR3 Statutory Residence Test guidance, tables A and B.
UK days in the tax yearUK resident in any of the last 3 years: resident withNot UK resident in any of them: resident with
16–454 ties or moreNever (always non-resident)
46–903 ties or moreAll 4 ties
91–1202 ties or more3 ties or more
121–1821 tie or more2 ties or more
183 or moreAlways residentAlways resident

Check your days and ties

One tax year, answered in a minute. Nothing you enter is stored: your answers stay in this page, and in the one email if you ask for it.

02  Were you UK resident in any of the last three tax years?

03  Your ties to the UK this tax year

Summarised; HMRC’s RDR3 guidance has the full definitions and exceptions.

Family. Is your spouse, civil partner or partner, or a child under 18, UK resident this tax year?
Accommodation. Is there a place in the UK you can use for 91 days in a row this year, and will you spend a night there?

At a close relative’s home, such as your parents’: 16 nights or more there.

Work. Will you work in the UK for more than 3 hours a day on 40 days or more?
90 days. Did you spend more than 90 days in the UK in either of the last two tax years?
Country. Will the UK be where you spend the most midnights this tax year?

Only counts if you were UK resident in any of the last three tax years.

04  UK days this tax year, counted at midnight

05  Do you work full-time abroad?

What this checker leaves out.

It runs the sufficient-ties test and the two day-count automatic tests for one tax year. It doesn’t run the full-time work tests, the UK-home test, the deeming rule, exceptional-circumstance and transit days, and split-year treatment. Midnights runs all of these, including all 8 split-year cases.

For a one-off answer from HMRC itself, there is HMRC’s own residence checker.

Answer the questions to see your limit and how many days you have to spare.

What’s at stake

For example: suppose you’ve moved to the UAE, which has no personal income tax, and you earn £60,000. If too many UK days made you UK resident, the UK could tax that salary too. At 2026/27 rates for England, Wales and Northern Ireland that is £11,432 of income tax, before National Insurance, split-year treatment or any tax treaty, each of which can change it. Where you’ve paid tax abroad, relief usually reduces the UK bill; this example is the one where there’s nothing to reduce it.

If a return turns out to be wrong because of carelessness, HMRC can add a penalty of up to 30% of the tax, and can look back six years.

The time cost is quieter: re-answering the tie questions and re-counting midnights from boarding passes before every trip home, then again at year end when your accountant asks for the dates.

What Midnights shows you

  • Where you stand this tax year

    Your UK status and your UK day count, counted at midnight from the trips you log. Free.

  • The full test, worked through

    The automatic tests, your ties, the deeming rule and split-year treatment across all 8 cases, cited to HMRC’s manual.

  • Warnings before the line

    Local alerts at 10, 5 and 3 days left, and trips checked before you book them. Pro.

  • UK work days and a report

    Work days recorded day by day, and a PDF for your accountant cited to its sources. Pro.

What it won’t tell you

  • Your domicile or inheritance tax position.
  • Your new country’s tax rules beyond a day count, unless it’s the US or a Schengen state.
  • Whether a double taxation agreement changes the answer.
  • Tax or legal advice. Take what it shows you to an adviser before you act on it.

Questions

Is 183 days the limit?

Only for the automatic test. With ties, the limit can be 16, 46, 91 or 121 days, depending on your ties and whether you were UK resident in any of the last three tax years.

Does staying with my parents count as a tie?

It can. A close relative’s home counts as accommodation if you spend 16 nights or more there in the tax year. HMRC’s RDR3 guidance has the full definition.

Does this cover the year I left?

Not this checker: split-year treatment needs dated facts. The Midnights app covers all 8 split-year cases.

Is anything I enter saved?

No. Your answers stay in this page. If you email yourself the summary, we use your address once to send it and don’t keep it unless you tick the updates box.

Is this tax advice?

No. It’s informational. Confirm your position with a qualified adviser before you act.

Keep the count all year, not just before this trip.

Where you stand is free. Pro is £39.99 a year or £4.99 a month (US: $39.99 / $4.99; other regions see their local price in the App Store), after a 14-day free trial for new subscribers, and renews until you cancel in your App Store account.

iOS now, Android in progress.