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UK Stamp Duty Land Tax Calculator

The 2016 Budget brought changes to the stamp duty land tax (SDLT) rates payable by purchasers on freehold commercial property and leasehold premium transactions. These changes took effect from 17 March 2016.

Under the reforms SDLT is now payable on the portion of the transaction value which falls within each tax band. Previously the SDLT band applied to the whole transaction value. Under the reforms buyers of commercial property worth up to £1.05m will pay less in stamp duty.

This calculator determines the SDLT payable following the changes introduced in the 2016 Budget.

Please enter % value less than 100



Purchaser's Costs* %

SDLT cost

Net price (£)

*Purchaser’s Costs % are assumed at 1.8% plus SDLT.
**All information contained herein is from sources deemed reliable; however, no representation or warranty is made to the accuracy thereof.

The stamp duty rates and tax bands:​

 ​ SDLT rate
Up to £150,000​ 0%
£150,001 to £250,000 2%
Above £250,000 5%


How to calculate the new Stamp Duty rate

If a property is bought for £2,400,000 the SDLT paid is as follow:

  • no SDLT is paid on first £150,000
  • from £150,001 to £250,000 SDLT is 2% = £2,000
  • above £250,000 SDLT is 5% = (£2,400,000 - £250,000) x 5% = £107,500
  • ​total SDLT = £109,500​​​