Real numbers for
UK buy-to-let.

Bricklio is a suite of tools for UK buy-to-let. Work out yield, cashflow, stamp duty and tax on a property you're weighing up, or check how one you already own is holding up.
Free to use.

Yield Tool

A straight read on a property, whether you're weighing up a purchase or checking one you already own. Enter price, deposit, rate and rent for yield, cashflow and stamp duty instantly, with Section 24 tax built in. A quick stress check shows the break-even point: how far rates or rent can move before the deal stops working. Save a property, come back to it, compare it against the next one.

Check a deal

Stress Tool

A longer view, new purchase or one you already own. See what happens to cashflow if rates rise, rent falls, or a property sits empty for a stretch. Full tax modelling whether you own it personally or through a limited company. Put the numbers in, get an honest forecast.

Run the stress test

Section 24, explained properly: the maths, the traps, the SPV question.

Estimates only, not financial advice. Check with a qualified accountant before deciding.