Free UK Property Calculators

Buying & Affordability

Stamp Duty Calculator

SDLT for England & Northern Ireland, with first-time buyer relief and the buy-to-let surcharge.

How Much Can I Borrow?

Standard and higher income multiples, plus an estimated monthly payment at current rates.

Rent vs Buy Comparison

Compare your current rent against the real monthly cost of owning, insurance and maintenance included.

LISA Bonus Calculator

See your government bonus build up, and check your property price against the £450k eligibility limit.

Mortgages & Remortgaging

Mortgage Repayment Calculator

Work out your monthly repayment on any loan amount, term and rate.

Mortgage Overpayment Calculator

See how much time and interest a regular overpayment actually saves you.

Moving Up: Next Home Equity Calculator

Work out the deposit you'd free up by selling, after the mortgage balance and selling costs.

Help to Buy Repayment Calculator

Estimate your equity loan repayment and when the interest clock starts costing you.

Buy-to-Let & Investing

BTL Yield & Cash Flow Calculator

Gross yield, net yield and monthly cash flow after mortgage, fees and voids.

Section 24 Tax Impact Calculator

See exactly what the mortgage interest tax credit costs you at basic and higher rate.

Homeowner Costs & Improvements

Cost of Ownership Tracker

The real annual cost of owning — mortgage, insurance, maintenance and charges, all in one number.

Improvement Loan Comparison

Personal loan vs secured loan vs further advance — compare the true monthly and total cost.

Boiler Cost Calculator

Service vs replacement cost, with a financed monthly option if you need one.