Stamp Duty Calculator

Stamp duty in City of Westminster

The current average residential property price in City of Westminster is £854,198, as of 2026-06. That's £582,010 above the UK average of £272,188.

Property purchases in City of Westminster are charged under SDLT, the tax used across England & Northern Ireland, not one of the other two UK property transaction taxes.

SDLT at the City of Westminster average price, by buyer type

home movers

SDLT on a £854,198 residential property in England & Northern Ireland for a home mover is £32,710.

Rates verified against HM Revenue & Customs on 2026-09-04. Source.

Band-by-band breakdown
BandTaxable amountRateCharge
Up to £125,000£125,0000%£0
£125,001 – £250,000£125,0002%£2,500
£250,001 – £925,000£604,1985%£30,210
  • You must file and pay within 14 days of completion.

first-time buyers

SDLT on a £854,198 residential property in England & Northern Ireland for a first-time buyer is £32,710.

Rates verified against HM Revenue & Customs on 2026-09-04. Source.

Band-by-band breakdown
BandTaxable amountRateCharge
Up to £125,000£125,0000%£0
£125,001 – £250,000£125,0002%£2,500
£250,001 – £925,000£604,1985%£30,210
  • First-time buyer relief is withdrawn entirely above £500,000 — a cliff, not a taper.
  • You must file and pay within 14 days of completion.

additional-property buyers

SDLT on a £854,198 residential property in England & Northern Ireland for a additional-property buyer is £75,420.

Rates verified against HM Revenue & Customs on 2026-09-04. Source.

Band-by-band breakdown
BandTaxable amountRateCharge
Up to £125,000£125,0000%£0
£125,001 – £250,000£125,0002%£2,500
£250,001 – £925,000£604,1985%£30,210
  • Additional-property surcharge (5%): £42,710
  • If you sell a previous main residence within 36 months of this purchase, you may be able to reclaim the additional-property charge.
  • You must file and pay within 14 days of completion.

Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0. HM Land Registry.

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