Commercial SDLT Calculator

Calculate Stamp Duty Land Tax on a UK commercial or mixed-use property, including the 5% non-residential surcharge above £250,000.

Nil Rate
£150k
Non-residential
Standard Rate
2%
£150k–£250k
Surcharge
5%
Above £250k

Formula & Statutory Rule

Formula
commercial_sdlt = tiered(price, [0, 2%, 5%])
Statutory Rule
non_residential: 0% to £150k, 2% to £250k, 5% above

Regional Benchmark Reference

UK commercial SDLT tiers
Jurisdiction / TierRate or LimitStatutory Note
£0–£150k0%Nil rate
£150k–£250k2%Standard
Above £250k5%Surcharge

Frequently Asked Questions

How is commercial SDLT calculated?

Non-residential SDLT is charged at 0% up to £150,000, 2% from £150,000 to £250,000 and 5% above £250,000.

What is mixed-use property?

Property combining residential and commercial use is taxed under the non-residential schedule.

Are there reliefs?

Yes. Reliefs exist for charities, registered social landlords and certain leasehold transactions.

When is it due?

Commercial SDLT is due within 14 days of completion, like residential SDLT.

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