The BTL calculator
that does the tax too.
Bricklio calculates cashflow, gross and net yield, mortgage payments and stamp duty for any UK buy-to-let property. Enter a price, deposit, rate and rent — results are instant.
What it does that other calculators don't: Section 24 tax analysis. Enter your income and see your real after-tax cashflow, with HMRC-accurate modelling of the mortgage interest restriction. No spreadsheet required.
Open the calculatorWhat's included
Yield & cashflow
Gross yield, net yield, monthly and annual cashflow. Interest-only or repayment.
Stamp duty
BTL rates calculated automatically, including the April 2025 changes.
Section 24 tax
After-tax cashflow with full band slicing and Personal Allowance taper. Basic, higher and additional rate.
Stress test
See how the deal holds up if rates rise or rent falls. Finds your break-even rate.
Save deals
Free account lets you save and compare multiple properties.