FlatRenter – Free tools for renters and landlords in the UK and US.

Check your deposit. Calculate your notice period. Estimate stamp duty or rental yield. 18 free tools built around current UK and US law.

Calculators, legal checkers, and practical guides built around current law.

Updated for the Renters’ Rights Act 2025.

For Renters

Check how much rent you can afford based on your income.

Check how much notice you must give or receive under your tenancy.

Check whether your deposit exceeds the legal maximum.

Calculate gross and net yield on a buy-to-let property.

Check SDLT costs including the second home surcharge.

Calculate valid notice periods for a rent increase.

Tools are available for UK and US renters and landlords. UK tools reflect the Renters’ Rights Act 2025.

1. Choose a tool

Browse by renter or landlord tools.

2. Enter your details

No account needed to run a calculation.

3. Save your results

Create a free account to access your results from any device.

Last updated June 2026. Tools reflect current UK law including the Renters’ Rights Act 2025.