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Additional Dwelling Supplement Calculator

Free Scotland ADS calculator. Calculate the Additional Dwelling Supplement (6%) and LBTT for Scottish property purchases.

Additional Dwelling Supplement Calculator

Calculate Scotland's ADS tax on additional properties

£

Total Tax Due

£1,500

Effective rate: 0.60%

LBTT Amount

£1,500

ADS (6% of full price)

£0

First-time buyer saving: £600

LBTT Band Breakdown

BandRateTax
£0 - £175,0000%£0
£175,001 - £250,0002%£1,500
LBTT Total£1,500
Grand Total£1,500

Quick Reference

Property Value

£250,000

Total Tax

£1,500

Total Cost

£251,500

How to Use This Calculator

  1. Enter the property price - The full purchase price of the property you're buying in Scotland.
  2. Select your buyer type - Choose whether you're a first-time buyer, moving home, or purchasing an additional property.
  3. Toggle additional property - If this is a second home, buy-to-let, or you own property elsewhere, enable this to add ADS.

Understanding Your Results

The calculator shows your total tax due combining both LBTT and ADS where applicable.

ADS (6%) is charged on the full purchase price for additional properties. This is separate from and in addition to the standard LBTT rates.

The LBTT band breakdown shows how much tax applies at each rate tier. First-time buyers benefit from a higher nil-rate band of £175,000.

Worked Example: Buying a Buy-to-Let in Edinburgh

Say you already own your home and you buy a buy-to-let flat in Edinburgh for £250,000. Here is what you pay:

LBTT (standard rates)

  • 0% on first £145,000 = £0
  • 2% on £145,001-£250,000 (£105,000) = £2,100
  • LBTT total: £2,100

ADS (6% on full purchase price)

  • 6% x £250,000 = £15,000

Total tax due

£2,100 + £15,000 = £17,100 - that is 6.84% of the purchase price.

Compare that to a first-time buyer purchasing the same property as their only home: they would pay £0 LBTT (under the £175,000 nil-rate) if the price were lower, or just £1,500 LBTT on a £250,000 property with the first-time buyer relief. No ADS applies. The additional property premium is substantial.

At £400,000 - closer to Edinburgh's average - the figures are:

  • LBTT: £2,100 + £3,750 (5% on £75k) = £5,850
  • ADS: 6% x £400,000 = £24,000
  • Total: £29,850 (7.46% of purchase price)

When ADS Applies - and When It Does Not

ADS applies when you are buying a second residential property in Scotland worth £40,000 or more and you already own at least one other property anywhere in the world at the end of the day of purchase.

Common situations where ADS applies

  • Buying a rental property while still owning your home
  • Buying a holiday home in Scotland
  • Buying a property for a family member while retaining ownership of your own home
  • A company buying residential property

Common situations where ADS does not apply

  • You are replacing your main residence (selling the old one on or before the purchase date)
  • The property costs less than £40,000
  • The property is entirely non-residential (commercial)
  • You are a first-time buyer with no other properties

The current ADS rate is 6%, raised from 4% in December 2022. Unlike LBTT which uses a tiered band system, ADS is a flat percentage applied to the whole purchase price - so a small increase in property value means a proportionally higher ADS bill.

Frequently Asked Questions

What is the Additional Dwelling Supplement (ADS)?

The Additional Dwelling Supplement is an extra tax charged on purchases of additional residential properties in Scotland. It's 6% of the full purchase price, payable on top of the standard Land and Buildings Transaction Tax (LBTT). It applies to second homes, buy-to-let properties, and holiday homes.

What is the current ADS rate in Scotland?

The ADS rate is 6% of the full purchase price for additional residential properties. This rate was increased from 4% in December 2022. Unlike LBTT which is banded, ADS is charged on the entire property value.

When do I have to pay ADS?

You pay ADS when buying an additional residential property in Scotland worth £40,000 or more if you already own another property anywhere in the world. This includes second homes, buy-to-let investments, and properties bought for family members if you retain an interest in another property.

Can I get an ADS refund?

Yes, you may be eligible for an ADS refund if you sell your previous main residence within 18 months of buying your new home. You must claim the refund within 3 years of the ADS payment date. The property sold must have been your only or main residence.

What is LBTT in Scotland?

Land and Buildings Transaction Tax (LBTT) is Scotland's property purchase tax, replacing UK Stamp Duty since 2015. Standard rates are: 0% up to £145,000, 2% from £145,001-£250,000, 5% from £250,001-£325,000, 10% from £325,001-£750,000, and 12% above £750,000.

Is there first-time buyer relief in Scotland?

Yes, first-time buyers in Scotland benefit from an increased nil-rate band of £175,000 (compared to £145,000 for other buyers). This means first-time buyers pay no LBTT on properties up to £175,000, potentially saving up to £600.

How is ADS different from the English additional property surcharge?

Scotland's ADS is 6% while England's additional property surcharge is 3%. Both are charged on the full purchase price. However, LBTT bands in Scotland are different from SDLT bands in England, so the total tax can vary significantly between the two nations.

Do companies pay ADS?

Yes, companies purchasing residential property in Scotland are subject to both LBTT and ADS. The 6% ADS applies to all additional residential property purchases, regardless of whether the buyer is an individual or a company.

Are there any ADS exemptions?

Yes. ADS does not apply if: you are buying your only or main residence and selling your previous one at the same time; the property costs less than £40,000; you are a registered social landlord; or the purchase is of a mixed property (part residential, part commercial). Inherited properties may also be exempt in certain circumstances - Revenue Scotland publishes detailed guidance on their website.

How do I claim an ADS refund and what is the deadline?

If you paid ADS but then sold your previous main residence within 18 months, you can reclaim the ADS. Submit an amendment to your original LBTT return via the Revenue Scotland online portal or by post. The deadline is 3 years from the date of the original ADS payment, not from the date of sale. You will need to provide the sale date and price of the previous property.

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