ADS Refund: How to Reclaim Your 8% Additional Dwelling Supplement in Scotland

Quick Summary

• You can reclaim ADS if you sell your previous main residence within 18 months of buying the new one — at Scotland's current 8% rate, that's £16,000 back on a £200,000 purchase
• You must claim within 12 months of selling the old property — miss this deadline and the refund is gone forever
• Apply directly to Revenue Scotland — you don't need a solicitor to claim the refund, though most will do it for you as part of the sale
• Track your exact deadlines — use our ADS Reclaim Tracker to see when your sale and claim deadlines fall

If you bought a new home in Scotland before selling your old one, you paid 8% Additional Dwelling Supplement (ADS) on top of the standard LBTT. The good news: the moment you sell your previous main residence, you can reclaim every penny. The bad news: miss the deadlines and you lose the refund permanently.

Quick Answer: To reclaim ADS, you must sell your previous main residence within 18 months of buying the new one, then apply to Revenue Scotland within 12 months of the sale. Apply online at revenue.scot or using the paper form. You'll need the LBTT return reference, details of the old property sale, and proof of previous residence. Most refunds are paid within 4–8 weeks. Use our ADS Reclaim Tracker to check your exact deadlines.

Who can claim an ADS refund?

You can reclaim ADS if all of these apply:

1. You paid ADS on a residential property purchase in Scotland after 1 April 2016
2. The new property has become your only or main residence (not a second home, buy-to-let, or holiday let)
3. You sold your previous main residence after buying the new one
4. The sale completed within 18 months of the new purchase
5. You apply within 12 months of selling the old property

What counts as your "previous main residence"?

Your main residence is the property you actually lived in as your only or primary home before the purchase. It doesn't have to have been owned for any minimum period, but you must have occupied it as your main home at some point in the 18 months before the new purchase.

If you owned a property but never lived in it (e.g. an inherited house you rented out), it's not your main residence and you can't use it to claim an ADS refund.

The "economic unit" rule for couples

ADS treats spouses, civil partners, and cohabiting partners as a single economic unit. This means:

• If either partner owns another property, ADS applies to the new purchase
• When claiming the refund, the old property can be sold by either partner — it still counts for the refund
• Couples applying for first-time buyer relief must both be first-time buyers

A common scenario: one partner owns a flat from before the relationship; the couple buys a new home together. ADS applies. When the partner's old flat sells within 18 months, the ADS is refundable — even though only one partner owned the old property.

The 18-month window

The 18 months runs from the effective date of the new purchase (usually the date of entry/completion) to the effective date of the old property sale. Both dates matter:

• New purchase effective date: the day you took possession (usually your "move in" date)
• Old property sale effective date: the day completion was signed

If the old property sale drags beyond 18 months, you lose the refund. No extensions, no exceptions.

What happens if I miss the 18 months?

You keep the ADS paid. The tax becomes permanent. In a slow market, this catches some sellers — especially in rural areas or with high-value properties.

Can I extend the deadline?

Only in very limited circumstances, and only retrospectively. Revenue Scotland may consider extensions for force majeure events (serious illness, bereavement, or certain legal disputes beyond your control). This is not guaranteed and should not be relied on.

The 12-month claim deadline

Once you've sold the old property, you have 12 months from the sale date to submit your refund claim. This is a separate deadline from the 18-month sale window.

Example timeline:

• 1 May 2025: Buy new home (pay ADS)
• 1 November 2025: Sell old home (6 months later — well within 18 months)
• 1 November 2026: Claim deadline (12 months from sale)
• After 1 November 2026: Refund is permanently lost

You don't need to wait after the sale — you can claim the refund immediately. Many solicitors submit the claim as part of completing the old property sale.

How to apply for an ADS refund

Step 1: Gather your documents

You'll need:

• LBTT return reference from the original purchase (look for "RS1" or "UTRN" on your purchase paperwork)
• Completion date of the new purchase (effective date)
• Completion date of the old property sale (effective date)
• Address of the old property
• Proof you lived in the old property (council tax bill, utility bill, electoral roll)
• Sale contract or missives from the old property
• Bank account details for the refund

Step 2: Choose your submission method

Option A: Your solicitor handles it Most Scottish solicitors will submit the ADS refund claim as part of your old property sale. Ask them when the sale completes. They'll usually charge a small fee (£50-£150) or include it in their standard conveyancing charge.

Option B: You submit directly You don't need a solicitor — you can claim yourself through Revenue Scotland. This is usually:

• Online via the SETS (Scottish Electronic Tax System) portal — if you have an account
• By paper form — download the LBTT refund form from revenue.scot

Step 3: Submit the claim

For online submission, log in to SETS, find the original LBTT return, and follow the "Amend a return" process to claim the ADS refund. The system asks for the same information as the paper form.

For paper submission, send the completed form to:

Revenue Scotland
PO Box 24068
Victoria Quay
Edinburgh EH6 9BR

Step 4: Wait for the refund

Revenue Scotland typically processes ADS refunds within 4–8 weeks. Complex cases (or cases with missing documents) can take longer. The refund is paid directly to your nominated bank account.

How much will I get back?

The refund is the full ADS amount you paid — no partial refunds, no deductions. Since December 2024, ADS is 8% of the entire purchase price for the new property.

New property price	ADS (8%) refundable
£150,000	£12,000
£200,000	£16,000
£300,000	£24,000
£400,000	£32,000
£500,000	£40,000

This is on top of the standard LBTT you paid, which is not refundable. Standard LBTT stays regardless of whether the property becomes your main residence.

Common reasons claims get rejected

1. Sold after the 18-month window

The single biggest reason. There's no discretion once the deadline passes. Check your dates carefully — the effective date is usually completion, not the date missives were signed.

2. Didn't actually live in the old property as main residence

If you can't prove you occupied the old property as your main home, Revenue Scotland may refuse the claim. Utility bills, council tax bills in your name, and being on the electoral roll are strong evidence. Rental contracts for the old property (showing it was let) are fatal to the claim.

3. Claim submitted after the 12-month deadline

Even if you sold within 18 months, you still lose the refund if you don't submit within 12 months of the sale date. Don't delay.

4. New property isn't actually your main residence

ADS refunds only apply if the new property has become your only or main residence. If you moved into the new property but then moved out again (e.g. relocating for work), the refund can be challenged.

5. Wrong LBTT reference

Double-check the LBTT return reference from your original purchase — it's a 14-character alphanumeric string. A wrong reference causes delays and may trigger Revenue Scotland to ask for additional evidence.

When to claim it yourself vs use a solicitor

Use a solicitor if:

• The claim is happening at the same time as the old property sale
• You're not confident navigating SETS or HMRC/Revenue Scotland systems
• The case is complex (multiple owners, trust structures, economic unit edge cases)
• You want the claim submitted promptly without risk of missing a deadline

Claim it yourself if:

• You're comfortable with online forms and have all the documents
• The case is straightforward (simple couple, both main residences, clear dates)
• You want to save the £50–£150 solicitor fee
• Your solicitor didn't offer the service at the sale

Frequently Asked Questions

Do I have to pay ADS upfront and reclaim later?

Yes. ADS is paid as part of your LBTT at the time of the new purchase. You cannot defer it or claim relief upfront — you always pay and then reclaim. Budget accordingly when buying the new property.

What if I can't sell the old property in 18 months?

You lose the ADS permanently. Price the old property to sell in a reasonable timeframe rather than risk the refund. On a £200,000 new home, losing a £16,000 refund is a bigger cost than a 5% price reduction on the old home.

Can I claim if I only owned the old property jointly?

Yes. If you were a joint owner of the previous main residence and it was your main home, you can use it to claim the ADS refund on the new property — even if your share was small.

Does renting out the old property affect the refund?

Only if the rental arrangement means it wasn't your main residence before the new purchase. If you moved out of the old property to rent it out, and that happened more than 18 months before the new purchase, the property is no longer your main residence and can't be used for the refund.

What if I bought the new home in a company or trust?

ADS refund rules for non-natural persons (companies, most trusts) are different and more restrictive. Generally, companies cannot claim the refund because a company cannot have a "main residence." Speak to a specialist tax adviser if this applies to you.

Is interest paid on the refund?

Revenue Scotland may pay interest on delayed refunds under certain circumstances, but this is not guaranteed. Interest applies from approximately 3 months after the claim is submitted if Revenue Scotland delays processing. For most refunds processed within 4-8 weeks, no interest is paid.

Related Articles

• LBTT Explained: Scotland's Property Tax — the full LBTT system
• Additional Dwelling Supplement Guide — when ADS applies
• First-Time Buyer Scotland — avoiding LBTT with FTB relief
• Buy-to-Let Tax Scotland — when ADS isn't refundable
• ADS Reclaim Tracker — check your deadlines

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This article is for informational purposes only and does not constitute financial, tax, or legal advice. LBTT and ADS rules can change — always verify current rates and rules with Revenue Scotland, and speak to a qualified solicitor or tax adviser for advice specific to your circumstances.

Sources: Revenue Scotland — ADS guidance, Revenue Scotland — Refunds and amendments, Land and Buildings Transaction Tax (Scotland) Act 2013