Commercial Stamp Duty Calculator (UK) – SDLT

Select whether this is a purchase or a new lease
Assumptions & Notes

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Total Tax Due
£0
Effective Rate
0%

Tax Breakdown

Band Rate Amount Tax
Enter values to calculate
Important: SDLT return and payment are generally due within 14 days of completion in England & Northern Ireland.

Frequently Asked Questions

When do I file & pay SDLT in England & NI?

Generally within 14 days of completion. You must submit your SDLT return and payment to HMRC within this timeframe.

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What is mixed-use property?

Property with both commercial and residential elements, such as a flat above a shop. Mixed-use properties may qualify for different SDLT rates.

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What is NPV of rent?

The Net Present Value (NPV) of rent is the discounted present value of future rent payments used for calculating lease SDLT. It accounts for the time value of money.

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