Free tools
Free tools & calculators for UK landlords
Plain, accurate answers to the tax questions landlords actually ask — no sign-up needed. Every tool states the tax year it uses and links the GOV.UK source.
Making Tax Digital
MTD Readiness CheckerAnswer a few questions to find out if and when Making Tax Digital applies to you, and what you’ll need to do.Open tool →MTD Qualifying Income CalculatorCheck your gross property + self-employment income against the £50k / £30k / £20k MTD thresholds — it’s turnover, not profit.Open tool →MTD Deadline CalculatorYour four quarterly update deadlines and the tax return date for the tax year.Open tool →MTD Penalty EstimatorWhat missing a quarterly update or a payment could cost you under the points-based penalty regime.Open tool →Accountant vs Software CalculatorCompare the rough annual cost of an accountant with doing MTD yourself using software.Open tool →
Rental tax
Rental Income Tax CalculatorEstimate the tax on your rental profit — correctly applying the Section 24 mortgage-interest restriction.Open tool →Section 24 CalculatorSee how much extra tax the mortgage-interest restriction costs a mortgaged landlord.Open tool →Allowable Expenses CheckerWhat you can and can’t claim against rental income — repairs vs improvements, and the common grey areas.Open tool →
Buying & selling
CGT on a Rental Sale CalculatorEstimate the capital gains tax on selling a rental property, including the annual exempt amount and any private residence relief.Open tool →Stamp Duty (SDLT) CalculatorStamp Duty Land Tax including the higher rate for additional properties (England & Northern Ireland).Open tool →Personal vs Limited Company (explainer)The trade-offs of holding buy-to-let personally vs in a company — an even-handed explainer, not a recommendation. Complex: take advice.Open tool →
Be ready for Making Tax Digital.
Set up your first property in two minutes. Free for one property, no card needed.