Commercial Property Calculators

Free, UK-specific calculators for tax, investment and day-to-day operations. Calculations run in your browser — we never see your numbers.

Tax calculators

SDLT, LBTT or LTT on a non-residential purchase or new lease — including the rent NPV charge.

Year-one tax relief on plant, integral features and structures — AIA, full expensing, 40% FYA and SBA.

Gross yield, net initial yield and reversionary yield on a commercial investment.

Interest cover at pay and stress rates, and the maximum loan a lender's ICR allows.

Occupied bill under the 2026 five-multiplier system, or your exposure on an empty (void) property.

Estimate the reviewed rent, backdated sum and change in capital value at a review or renewal.

Weigh EPC improvement costs against void risk, penalties and energy savings.