The 183-Day Residency Test for Stamp Duty
How HMRC determines whether you pay the 2% non-resident surcharge, and exactly how to count your days.
Key Takeaways
- The 183-day test is the only measure HMRC uses to determine UK residence for SDLT. Nationality, citizenship, visa status, and income tax residence are all irrelevant.
- You are "present" in the UK on any day you are in the UK at midnight. Your arrival day counts if you are still here at midnight; your departure day does not, because you are not in the UK at the end of it.
- At completion, HMRC looks at the 12 months up to and including your completion date. If you were present on 183+ days in that period, you are UK resident.
- If any buyer in a joint purchase is non-resident, the 2% surcharge applies to the entire transaction, not just their share, unless the married couple exception below applies.
- Married couples or civil partners are treated as jointly resident if one spouse is UK resident, provided they are not separated. This can protect the non-resident spouse from the 2% surcharge.
- A company is non-resident if it is not UK resident for Corporation Tax, or if it is a UK close company controlled by non-UK residents.
- Failing the 183-day test by even one day means you pay the full 2% surcharge on the complete purchase price, which on a £500,000 property equals £10,000 extra.
183 days
Minimum UK presence
365 days
Rolling window
+2%
Surcharge if non-resident
Midnight
End-of-day rule
What Is the 183-Day Residency Test?
When you buy residential property in England or Northern Ireland, HMRC checks whether you are a UK resident or a non-UK resident. If you are non-resident, a 2% surcharge applies on top of all other SDLT rates. The only test HMRC uses is the 183-day physical presence test.
According to GOV.UK guidance on SDLT for non-UK residents, you qualify as UK resident if you were physically present in the UK on at least 183 days in the 12 months up to and including your completion date. Days after completion can also count later: if you reach 183 days in any continuous 365-day period ending no later than 365 days after completion, you can reclaim the surcharge.
The Legal Test in Plain English
- Take the 12 months up to and including your completion date (for a 1 June 2026 completion, 2 June 2025 to 1 June 2026).
- Count the days on which you were in the UK at midnight.
- If you reach 183 days, you are UK resident. No surcharge.
- If not, you are non-resident and the 2% surcharge applies, but you can reclaim it if you reach 183 days in a 365-day period ending within a year after completion.
This means even buyers who spend significant time in the UK but fail to hit 183 days in the 12 months up to completion will pay the surcharge at completion. The threshold is absolute: 182 days and you pay the surcharge, 183 days and you do not.
What Counts as "Present" in the UK?
The HMRC internal manual SDLTM09880 sets out the precise meaning of "present." You are counted as present in the UK on a given day if you are in the UK at the end of that day, that is, at midnight.
| Day Type | Counts as UK Present? | Notes |
|---|---|---|
| Arrival day (before midnight) | Yes | You are in UK at midnight = counts |
| Departure day | No | Not in the UK at the end of that day |
| Transit through UK (overnight) | Yes | In UK at midnight counts |
| Transit through UK (same day, no midnight) | No | Left before midnight, so not present at end of day |
| Day entirely abroad | No | Not in UK at midnight |
Important: Midnight Rule
If you fly into London at 10pm and fly out at 2am the next day, you are in the UK at midnight on the day of arrival. That counts as one day of presence. The following day (when you departed at 2am) does not count, because you were not in the UK at the end of that day (midnight).
Day Counter Tool
Enter your completion date and estimated UK days to see whether you pass the 183-day test. Optionally add a property price to see the surcharge cost.
183-Day Residency Counter
The date your property purchase legally completes.
Days on which you were in the UK at the end of the day (midnight), in the 365 days ending with the completion date.
If provided, we will calculate the 2% surcharge cost.
Worked Day-Counting Example
Sarah is an Australian living in Sydney. She completes the purchase of a £450,000 London flat on 15 March 2026. HMRC looks back at the 12 months up to and including completion (16 March 2025 to 15 March 2026) and counts the days on which Sarah was in the UK at midnight.
| Period | UK Days | Result |
|---|---|---|
| 16 Mar 2025 to 15 Mar 2026 (holidays + work visits) | 92 | Non-Resident |
Sarah's Stamp Duty Bill: £450,000 Purchase
As UK Resident (0 surcharge)
As Non-Resident (+2% surcharge)
The 2% surcharge costs Sarah an extra £9,000 (2% × £450,000). She could reclaim this later if she relocates to the UK and is present on 183 days in a 365-day period ending no later than 15 March 2027, then amends her return within 2 years of completion. See our expat surcharge reclaim guide for details.
Now consider James, a British citizen who moved to Singapore for work but spends summers in London. He completes on a £600,000 property on 1 June 2026. In the 12 months up to completion (2 June 2025 to 1 June 2026) he spent 190 days in the UK, covering summer plus several extended visits. He passes the test. No surcharge.
James's Stamp Duty Bill: £600,000 Purchase (UK Resident)
Had James failed the test, his bill would have been £32,000, an extra £12,000. Counting your days carefully before you fix a completion date can save significant money, because residency is tested against the effective date, not exchange.
What Does NOT Affect Your Residency Status
This is where many buyers are caught out. The GOV.UK guidance is explicit: "Nationality, citizenship or residence status under UK Statutory Residence Test are not relevant" for SDLT purposes.
| Factor | Relevant for SDLT? | Why |
|---|---|---|
| 183-day physical presence | Yes, only this | The sole test HMRC applies |
| British/UK citizenship | No | Nationality is irrelevant |
| Visa or right to reside | No | See visa holders guide |
| UK Statutory Residence Test (income tax) | No | Separate test, irrelevant for SDLT |
| UK domicile | No | Domicile rules do not apply |
| Where you pay income tax | No | Tax residency is a separate matter |
| Home country or country of birth | No | Only UK physical presence matters |
This means a British passport holder who has lived in Hong Kong for 10 years and visits the UK for 80 days a year is treated as non-resident for SDLT. Conversely, a foreign national on a student visa who spends 200 days in the UK is treated as UK resident with no surcharge. For more on how visa status interacts, see our visa holders stamp duty guide. For dual citizens, see our dual nationality stamp duty page.
Paid the 2% non-resident surcharge?
If you spend 183 days in the UK around the time of your purchase, you may be able to claim it back.
How the 2% Surcharge Adds Up
The 2% non-resident surcharge applies to the entire purchase price, stacking on top of all standard bands. Here is what failing the 183-day test costs at different price points:
| Property Price | UK Resident SDLT | Non-Resident SDLT | Surcharge Cost |
|---|---|---|---|
| £300,000 | £5,000 | £11,000 | +£6,000 |
| £450,000 | £12,500 | £21,500 | +£9,000 |
| £600,000 | £20,000 | £32,000 | +£12,000 |
| £1,000,000 | £43,750 | £63,750 | +£20,000 |
| £2,000,000 | £153,750 | £193,750 | +£40,000 |
Use our non-resident buyer calculator for a precise breakdown at any price. For the full non-resident surcharge picture, see the non-resident complete guide.
Joint Purchases and the Spouse Rule
Joint Buyers: One Non-Resident = Full Surcharge
If any buyer in a joint purchase is non-UK resident, the 2% surcharge applies to the entire transaction. It is not applied proportionally to the non-resident's share. An unmarried couple where one partner lives abroad pays the full surcharge. Married couples and civil partners living together are treated differently (see below).
Exception: The Spouse/Civil Partner Rule
There is a limited exception for married couples and civil partners. Under HMRC guidance, if one spouse is UK resident (meets the 183-day test) and they are not separated, both are treated as UK resident for the purpose of the surcharge test, even if the other spouse has spent fewer than 183 days in the UK.
Conditions: The couple must be legally married or in a civil partnership and still living together at the effective date. They are not living together if they are separated under a court order, separated by a deed of separation, or in fact separated in circumstances in which the separation is likely to be permanent.
Example: Priya (UK resident, 200 UK days) and her husband Raj (non-resident, 60 UK days) buy a £500,000 property together. Because Priya meets the 183-day test and they are married and not separated, both are treated as UK resident. No 2% surcharge. Total SDLT: £15,000 (not £25,000). Timing your purchase around a spouse's residency status can therefore make a material difference.
Close Companies and Non-Residents
Where a company buys residential property, different rules apply. The 183-day test does not apply to companies. A company is non-resident if it is not UK resident for Corporation Tax purposes on the completion date. A UK resident company can also be treated as non-resident if it is a close company controlled by non-UK residents.
Close Companies: When the 2% Surcharge Applies
A close company is broadly one controlled by five or fewer participators. If a close company is itself controlled by non-UK residents, HMRC treats the company as non-resident for surcharge purposes. The 2% surcharge then applies to the company's residential property purchase.
Where the flat 17% rate applies to a non-resident company (a dwelling over £500,000 with no relief), it becomes 19%. Where relief from the 17% rate applies, for example to a property rental business, the company pays the higher residential rates plus the 2%. See the corporate buyer guide for full details.
How to Prove UK Residence to HMRC
If you believe you pass the 183-day test, you should be prepared to substantiate your day count in case HMRC questions your return. Useful evidence includes:
- Passport stamps and e-gate records showing entry and exit dates
- Flight booking confirmations and boarding passes
- UK bank account transaction history showing UK ATM/card use by date
- Mobile phone records or GPS data showing UK location
- Work attendance records, payslips, or employer letters
- Hotel or rental accommodation invoices for UK stays
- GP, dental, or NHS records showing UK visits
- Utility bills or council tax records for any UK property
Practical Tip: Keep a Day-Count Log
If you are approaching the 183-day threshold, maintain a running log of each day you are in the UK at midnight. A simple spreadsheet with date, location at midnight, and supporting evidence (e.g., flight reference) is sufficient. Review your count before you fix a completion date, when you can still adjust your timing if needed.
Sources
Frequently Asked Questions
How exactly is the 183-day window calculated for stamp duty?
HMRC looks at the 12 months up to and including your completion date. If you were present in the UK at midnight on at least 183 days in that period, you are UK resident and no 2% surcharge applies. If not, you pay the surcharge, but days you spend in the UK after completion can still count towards a refund: you can reclaim the 2% if you reach 183 days in any continuous 365-day period ending no later than 365 days after completion.
Does my nationality or passport affect whether I pay the surcharge?
No. HMRC explicitly states that nationality and citizenship are irrelevant for the SDLT non-resident surcharge. A British citizen living in Australia who spends only 90 days in the UK will pay the 2% surcharge. An American citizen on a work visa who spends 200 days in the UK will not. Only physical presence in the UK matters.
If my spouse is UK resident, do I still pay the surcharge?
Not if you are buying jointly. If you and your spouse or civil partner are buying together, and your spouse passes the 183-day test, you are both treated as UK resident, provided you are not separated. The surcharge does not apply to your joint purchase. However, if you are buying in your name alone and do not pass the test yourself, you would still pay the surcharge.
Can I delay completion to accumulate more UK days?
In theory yes. If you are close to 183 days but have not yet reached the threshold, delaying completion by a few weeks (if both parties agree) could allow you to pass the test and avoid the surcharge. Each day of delay that you spend in the UK adds to your count. On a £500,000 property, avoiding the 2% surcharge is worth £10,000, more than enough reason to discuss timing with your solicitor and the seller.
Does the 183-day test differ from the income tax Statutory Residence Test?
Yes, they are entirely separate. The income tax Statutory Residence Test involves multiple factors including automatic UK tests, automatic overseas tests, and sufficient ties tests. The SDLT residency test uses only physical presence at midnight. You could be UK resident for income tax but non-resident for SDLT (or vice versa). Always check the SDLT test specifically before relying on your income tax status.
Reviewed by
Julie White
ACAStamp duty specialist since 1999Stamp Duty Land Tax Specialist
ACA and Tax Adviser with a career spanning nearly four decades, specialising in stamp duty planning and advisory work since 1999.