If you searched for a rental property tax calculator spreadsheet: use this fast online estimator. It focuses on incremental Income Tax due from net rental profit and keeps a shareable link.
Spreadsheets are great for bookkeeping, but tax band logic and marginal-rate effects are easy to misapply. This tool focuses on one clear question: what is the additional Income Tax attributable to rental profit?
Keep using a spreadsheet for income/expenses. Once you have an annual net profit figure, paste that here and (optionally) add other income to reflect your marginal band.
Rates are versioned by tax year and region and linked to sources, so you can re-run the same inputs later and get a consistent result.
Last updated: 2026-04-20
Not in this MVP. The online estimator is designed to replace the common spreadsheet use case for quick tax estimation.
Yes. Use your spreadsheet to compute net profit, then use this tool for the tax estimate.
No. This MVP does not model Section 24.