Does the 5% BTL surcharge apply to limited companies?

Yes. Limited companies purchasing residential investment property also pay the 5% surcharge on the full purchase price. However, limited companies can deduct 100% of mortgage interest as a business expense under corporation tax rules, unlike individual landlords facing Section 24 restrictions.

Can I reclaim the BTL surcharge?

Yes, if you paid the surcharge because you owned two properties simultaneously, you can claim a refund if you sell your previous main residence within 36 months of the BTL purchase completing. The claim must be made within 12 months of selling the previous property.

Is the BTL surcharge the same in Scotland and Wales?

No. Scotland uses LBTT with its own Additional Dwelling Supplement and Wales uses LTT. England and Northern Ireland use SDLT with the 5% surcharge as of October 2024.

Do first-time buyers pay the BTL surcharge?

Yes, if buying a property they do not intend to live in as their main residence. First-time buyer relief only applies to main residence purchases, not buy-to-let investments.

UK Buy-to-Let Stamp Duty Calculator

Calculate SDLT for buy-to-let and additional residential properties in England. Includes the October 2024 update raising the BTL surcharge from 3% to 5% on the entire purchase price. Ltd Co analysis included.

Property Price

Buyer Type

BTL Stamp Duty (SDLT)

£17,500

Effective rate: 5.83% — includes 5% surcharge on entire price

Standard SDLT Portion

£2,500

5% Surcharge (on full price)

£15,000

Total BTL SDLT

£17,500

Extra vs Main Residence

+£15,000

Oct 2024 change: The BTL surcharge increased from 3% to 5% of the entire purchase price. On a £300,000 property, this adds £15,000 on top of standard SDLT — vs £9,000 under the old 3% rule.

Advanced

Advanced Analysis

How the surcharge works, thresholds, exceptions and refund rules

Unlike standard SDLT which taxes each band separately, the 5% BTL surcharge applies to the entire purchase price — not just the slice above a threshold.

Example: Buying a £300,000 BTL property

Component	Calculation	Amount
Standard SDLT (£0-£250K @ 0%)	£250,000 × 0%	£0
Standard SDLT (£250K-£300K @ 5%)	£50,000 × 5%	£2,500
5% Surcharge (on ENTIRE £300K)	£300,000 × 5%	£15,000
Total BTL SDLT		£17,500
Main residence SDLT (comparison)		£2,500
Extra cost of BTL purchase		+£15,000

Standard SDLT

£2,500

Calculated on price bands

5% Surcharge

£15,000

On full purchase price

Effective Rate

5.83%

All-in SDLT rate

Surcharge Rate Change

+2%

Oct 2024: 3% raised to 5%

Pro

Professional Simulator

Ltd Co route analysis, surcharge refund eligibility, portfolio strategy

Annual Rental Income

Annual Mortgage Interest

Personal Income Tax Rate

Both routes pay the 5% SDLT surcharge — but the Ltd Co route allows full mortgage interest deduction, which is restricted for personal ownership under Section 24.

Personal Ownership

£4,200 tax/yr

Tax on full rent income (£15,000)

Only 20% tax credit on interest (Section 24)

Higher-rate taxpayers hit hardest

Ltd Co (SPV)

£1,500 tax/yr

25% corp tax on net profit (£6,000)

Full mortgage interest deductible

Save £2,700/yr on tax

Personal Annual Tax

£4,200

Under Section 24 restriction

Ltd Co Annual Tax

£1,500

25% corp tax on net profit

Annual Tax Saving (Ltd Co)

£2,700

Annual benefit of Ltd Co route

SDLT Difference

None

Both pay 5% BTL surcharge

Ltd Co setup costs: Incorporation (~£50), annual accounts (~£800-£1,500), compliance admin. The tax saving must outweigh these costs. For higher-rate taxpayers with significant mortgage interest, Ltd Co typically becomes beneficial when interest exceeds ~50% of rental income.

How to Use This BTL Stamp Duty Calculator

Enter the property price and select your buyer type (individual, portfolio investor, or limited company). The calculator instantly shows the full buy-to-let SDLT including the 5% surcharge that applies to the entire purchase price.

What Changed in October 2024?

From 31 October 2024, the additional dwelling surcharge increased from 3% to 5% of the entire purchase price. This applies to all additional residential properties including buy-to-let investments, second homes, and holiday lets. The surcharge applies from the first pound — not just above a threshold.

BTL SDLT Calculation Formula

BTL SDLT = Standard SDLT on price bands + (5% × full purchase price)

Standard bands (England, 2024-25):
£0 – £250,000 → 0%
£250,001 – £925,000 → 5%
£925,001 – £1,500,000 → 10%
Over £1,500,000 → 12%

Then add: 5% surcharge on ENTIRE purchase price

Example: £300,000 BTL
Standard SDLT: £0 + £2,500 = £2,500
5% surcharge: £300,000 × 5% = £15,000
Total BTL SDLT = £17,500

Under the old 3% rule the same property would have cost £11,500 in SDLT. The 2024 increase adds £6,000 on a £300,000 purchase.

Example: BTL Purchase in Manchester

David — Buying a £275,000 BTL Terrace

Property Price	£275,000
Standard SDLT (0% on £250K)	£0
Standard SDLT (5% on £25K)	£1,250
5% Surcharge on £275,000	£13,750
Total BTL SDLT	£15,000
Main residence SDLT (comparison)	£1,250
Extra cost of BTL purchase	£13,750
Effective BTL SDLT rate	5.45%

David needs a gross yield above 6% on this property to recover the SDLT cost within 3 years of ownership and break even on the purchase premium.

Frequently Asked Questions

Yes. Limited companies purchasing residential investment property also pay the 5% surcharge. However, limited companies can still deduct 100% of mortgage interest as a business expense under normal corporation tax rules — unlike individual landlords who face the Section 24 restriction. This is a key reason higher-rate taxpayer landlords use Ltd Co SPVs despite paying the same SDLT.

Yes, in specific circumstances. If you paid the surcharge because you owned two properties simultaneously (e.g., buying before selling your previous main residence), you can claim a refund if you sell the previous main home within 36 months of the BTL completion. The refund must be claimed within 12 months of selling the previous property or within 12 months of the SDLT filing date, whichever is later.

No. Properties under £40,000 are exempt from the additional dwelling surcharge. This threshold is rarely relevant in practice given current UK property prices, but it does apply to some parking spaces and small commercial units.

No. Scotland uses LBTT with its own Additional Dwelling Supplement (ADS) and Wales uses LTT with a higher residential rate for additional properties. England and Northern Ireland use SDLT with the 5% surcharge as of October 2024. Always confirm the applicable tax regime for the country where the property is located.

Yes, if buying a property they do not intend to live in as their main residence. First-time buyer SDLT relief only applies to properties purchased as a main residence. A first-time buyer purchasing a buy-to-let investment property pays the full 5% BTL surcharge on top of standard SDLT rates.