Mortgage Affordability Calculator
Estimate how much you may be able to borrow and what property budget that gives you.
Use calculator →Calculate estimated property tax for England, Northern Ireland, Wales or Scotland, including first-time buyer, home mover and additional property scenarios.
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Enter the purchase price and location. The calculator applies the correct standard residential tax system for England/NI, Wales or Scotland.
For each tax band:
taxable_amount_in_band =
min(price, band_upper) - band_lower
band_tax =
taxable_amount_in_band × band_rate
total_tax = sum of all band_tax
additional surcharges are added
where the selected rules require them
Property tax is usually calculated in slices. You only pay each rate on the part of the purchase price that falls inside that band.
Estimated SDLT based on the selected location and buyer type.
This is the estimated tax as a percentage of the purchase price.
Stamp Duty Land Tax applies in England and Northern Ireland.
Standard residential SDLT rates are being used.
| Band | Rate | Taxed amount | Tax |
|---|
Once you know your estimated property tax, compare mortgage deals and check whether your deposit still covers the full buying costs.
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The result shows the estimated property tax due on your purchase before other buying costs. It does not include legal fees, survey fees, mortgage fees, moving costs or insurance.
In England and Northern Ireland, the tax is Stamp Duty Land Tax. In Wales, it is Land Transaction Tax. In Scotland, it is Land and Buildings Transaction Tax.
The effective tax rate helps you compare the tax against the property price. Because property tax is usually charged in slices, the effective rate is often lower than the highest tax band your purchase reaches.
Correct as of June 2026: this calculator uses standard residential tax bands. Always check official rules before exchange or completion.
Stamp duty is the common name many people use for tax paid when buying property, but the actual tax depends on where the property is. England and Northern Ireland use Stamp Duty Land Tax, Wales uses Land Transaction Tax, and Scotland uses Land and Buildings Transaction Tax.
These taxes are calculated using bands. For example, a property can have one part taxed at 0%, the next slice taxed at a lower rate, and the remaining slice taxed at a higher rate. That means moving into a higher band does not usually mean the whole purchase price is taxed at that higher rate.
Buyer type can change the result. Eligible first-time buyers in England and Northern Ireland get a higher nil-rate band, but the relief is not available if the property price is over £500,000. Scotland has first-time buyer relief that increases the nil-rate band to £175,000.
Additional property purchases can be much more expensive. England and Northern Ireland normally add 5 percentage points to the SDLT rates, Wales uses separate higher residential LTT rates, and Scotland adds an 8% Additional Dwelling Supplement on top of standard LBTT.
The calculator is designed for normal residential purchases. If you are buying through a company, buying several dwellings, buying shared ownership, replacing a main residence late, or dealing with linked transactions, the correct tax can be more complicated.
Not technically. England and Northern Ireland use Stamp Duty Land Tax, Wales uses Land Transaction Tax, and Scotland uses Land and Buildings Transaction Tax. This calculator covers all three systems.
In England and Northern Ireland, eligible first-time buyers pay no SDLT up to £300,000 and 5% on the portion from £300,001 to £500,000. If the price is over £500,000, standard rates apply instead.
Wales does not use a separate first-time buyer relief in this calculator. Welsh residential purchases use Land Transaction Tax bands, with higher residential rates where they apply.
It is extra property tax that can apply when you buy another residential property and are not replacing your main home. The rules differ: England/NI uses an SDLT surcharge, Wales uses higher LTT rates, and Scotland uses ADS.
Yes, but only for England and Northern Ireland SDLT. If you select non-UK resident, the calculator adds the 2% SDLT surcharge to the result.
No. It is an estimate for standard residential purchases. Use the official tax calculator or speak to a conveyancer or tax adviser if your purchase is complex.
These terms explain the main property and mortgage concepts behind the calculation.