Two SDLT surcharges — the 5% additional-property surcharge and the 2% non-UK-resident surcharge — have distinct reclaim paths. Both are legislated and reliable when the eligibility conditions are met. Neither applies to pure investment purchases or buyers who simply don't meet the eligibility rules. This page walks through both paths, the deadlines, the evidence HMRC needs, and how to file directly with HMRC's free online tool.

The two reclaim paths at a glance

Surcharge	Reclaim condition	Deadline	Typical refund
5% additional-property	Sell previous main residence within 36 months of new purchase	Sale within 36 months; file within 12 months of sale	£15k-£60k on typical family homes
2% non-UK-resident	Achieve 183+ UK days in a continuous 365-day period starting after completion	Residence within 12 months of new purchase; file within 2 years of effective date	£8k-£40k depending on price

Path 1 — additional-property surcharge reclaim (5%)

Who's eligible

You bought your new main residence before selling your previous main residence. On completion day of the new purchase you owned two residential properties and paid the 5% additional-property surcharge. You are eligible to reclaim the full surcharge amount once the previous main residence sells within 36 months of the new purchase's effective date (usually completion date).

The 36-month clock

Starts on the effective date of the new purchase. Ends exactly 36 months later. Miss this window by a day and the reclaim is permanently lost. HMRC does not grant extensions except in narrow special-circumstance cases (compulsory purchase orders, specific hardship categories).

The 12-month filing deadline

Once the previous main residence sells, you have 12 months from the sale completion date (or 12 months from the original SDLT return filing date, whichever is later) to file the reclaim. This is the second deadline and where most permanent losses happen — the sale is done, the SDLT return is filed but the reclaim never gets filed.

How much you get back

The full surcharge amount you paid — typically:

• £15,000 on a £300,000 new home
• £22,500 on a £400,000 new home
• £30,000 on a £500,000 new home
• £45,000 on a £750,000 new home
• £60,000 on a £900,000 new home

Use the SDLT surcharge refund calculator for your specific figure.

Evidence HMRC needs

To prove the previous property was your main residence:

• Council tax bills at the previous property
• Utility bills in your name at that address
• Electoral roll registration
• Bank statements showing the address
• GP or dentist registration
• Self-assessment records showing the address
• Sale contract and completion statement for the previous property

2-3 documents from different categories is usually enough for a clean case.

Path 2 — non-UK-resident surcharge reclaim (2%)

Who's eligible

You were non-UK-resident under the SDLT-specific 183-day test at the effective date of the transaction and paid the 2% surcharge. You are eligible to reclaim once you become UK-resident within 12 months of the new purchase — meaning you must be present in the UK for at least 183 days in a continuous 365-day period that:

• Begins after the effective date, AND
• Ends within 12 months of the effective date

The residence achievement window

Once you hit the 183-day threshold within the qualifying window, the right to reclaim crystallises. You then have up to 2 years from the effective date to file the amendment. Typical use case: buyer completes purchase in October 2026 as non-UK-resident, moves permanently to the UK in November 2026, hits 183 UK days around early May 2027, files the reclaim shortly afterwards.

How much you get back

2% of the whole property price:

• £6,000 on £300,000
• £10,000 on £500,000
• £15,000 on £750,000
• £20,000 on £1,000,000
• £40,000 on £2,000,000

Evidence HMRC needs

To prove UK physical presence:

• Travel records (boarding passes, immigration stamps)
• UK employer contract or PAYE records
• UK utility bills
• UK bank statements showing daily activity
• UK GP registration
• Council tax bills

The day-count evidence is more forensic than the main- residence evidence — HMRC may ask for boarding-pass detail on marginal cases (buyers who only just cross the 183-day threshold).

Stacking both reclaims

A non-UK-resident buyer replacing their main residence pays both surcharges at completion and can pursue both reclaims independently. Example: overseas buyer relocating to the UK, buys £700,000 London home before selling their previous London home which they had owned for years.

• Standard SDLT: £22,500
• Additional-property surcharge (5%): £32,500
• Non-UK-resident surcharge (2%): £14,000
• Total at completion: £69,000
• Additional-property reclaim when previous home sells within 36 months: £32,500
• Non-UK-resident reclaim when 183+ UK days achieved within 12 months: £14,000
• Net SDLT once both reclaims processed: £22,500

How to file the reclaim (both paths)

HMRC provides a single online tool for SDLT refunds. Go to gov.uk and search for "apply for stamp duty land tax refund". Choose the appropriate refund category (higher rates for additional properties OR non-UK-resident surcharge). Enter:

1. Property address
2. SDLT return unique transaction reference (UTRN) — on your original SDLT5 certificate
3. Effective date of the original transaction
4. For additional-property: sale completion date of previous main residence
5. For non-UK-resident: evidence of UK presence covering 183+ days
6. Buyer details (name, address, contact)
7. Bank account details for the refund payment

Upload evidence. Submit. HMRC processes valid reclaims within 15 working days typically. Refund paid direct to the buyer's bank account.

When to use a specialist SDLT firm

For standard cases (simple family move, straightforward replacement of main residence), HMRC's online tool is designed for direct buyer filing. No specialist needed.

Consider a specialist for:

• Divorce or separation where the previous main home ownership is subject to court order
• Complex inheritance situations
• Mixed-residence history (e.g., moved back into a former main home for a period)
• Corporate structures
• Contested cases where HMRC has previously refused

Typical specialist fees: £150-£400 fixed fee for standard complex cases, 15-25% of refund for high-value contested cases. Choose regulated firms (ICAEW, CIOT, or law firms regulated by SRA).

Warning — cold-contacting SDLT reclaim firms

A cottage industry of firms exists that cold-contact recent UK home buyers claiming they can secure additional SDLT refunds beyond the standard replacement-of-main-residence or non-UK-resident reclaims. Common speculative claims include:

• "Uninhabitable property" reclaims — arguing the property should have been taxed at commercial rates because it wasn't fit to occupy at completion
• "Multiple Dwellings Relief" retrospective claims for pre-June-2024 transactions
• "Garden paddock mixed-use" reclaims

Some of these claims have merit in narrow circumstances. Most do not — they trigger HMRC enquiries, and if the claim is rejected the buyer becomes liable for professional fees to the reclaim firm regardless. If a reclaim firm approaches you unsolicited with a speculative claim, take independent advice from a regulated SDLT specialist before signing anything.

What if the reclaim is refused

HMRC issues a decision notice explaining why. Common reasons:

• Missed deadline (most common)
• Insufficient evidence of main residence status
• Insufficient evidence of UK residence days
• Previous property was not the buyer's main residence
• Data-entry errors in the claim

For data-entry errors, refile immediately. For substantive refusals, you have 30 days to request a review or 30 days to appeal to the First-tier Tribunal (Tax Chamber). A specialist SDLT firm or tax barrister can assess the merits of appeal.

Frequently asked questions

Can I claim back the SDLT surcharge?

Yes if you replaced your main residence within 36 months (5% surcharge) OR you were non-UK-resident and became UK-resident within 12 months (2% surcharge). Both paths legislated and reliable.

How much money can I get back?

£15k-£60k typical for additional-property surcharge. £8k-£40k for non-UK-resident surcharge. Both can stack in the same purchase.

What's the deadline?

Additional-property: 36 months to sell previous home + 12 months from sale to file. Non-UK-resident: 12 months to achieve 183+ UK days + 2 years from effective date to file.

Who is NOT eligible?

BTL investors, pure second-home buyers, buyers whose 36-month window has closed, corporate buyers (no replacement-of-main-residence relief for companies).

How do I file the reclaim?

HMRC's online tool at gov.uk/apply-stamp-duty-land-tax-refund. Free, direct filing, 15 working days typical processing.

Do I need a specialist reclaim firm?

Not for standard cases. Consider one for complex situations (divorce, inheritance, corporate). Watch out for cold-contacting firms with speculative claims.

What evidence does HMRC need?

Additional-property: 2-3 items proving previous property was main residence. Non-UK-resident: travel records + UK presence documentation covering 183+ days.

Can HMRC refuse a reclaim?

Yes — missed deadlines, insufficient evidence, previous property not genuinely main residence. Refusal rate ~5-10% for clean cases, higher for contested.

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Last reviewed: 21 August 2026. Guidance only — always confirm with your conveyancer or a qualified SDLT specialist.