Built and maintained by James Nicholson, landlord and founder of The Landlord Alliance · Last updated 31 August 2026
England only — Wales, Scotland and Northern Ireland have separate regimes

Free landlord calculators

Free, ungated tools for the arithmetic that carries a penalty if you get it wrong. No sign-up, no email, nothing stored — everything runs in your browser. Each one shows its working and cites the provision it is applying, so you can check it against the statute rather than trusting us.

Rental income tax calculatorTax on your rental profit including Section 24, for 2026/27 and 2027/28. Rental yield calculatorGross, net and return on the cash you actually invested. Section 13 rent increase calculatorThe earliest lawful date, and when to serve. Property licensing checkerWhich scheme could apply, and exactly what to look up. Landlord register deadline finderYour PRS database registration window, by county, town or borough. Deposit cap calculatorThe five or six week tenancy deposit cap and the one week holding deposit cap, from any rent figure. Shows the annual rent it derived and which threshold applied. Section 8 notice period calculatorPick a ground, enter the date you served, get the earliest date you can start proceedings — including the twelve month condition on Grounds 1 and 1A.

Why these exist

Both of these are calculations I got wrong at least once before I built a tool to do them. The deposit cap looks trivial until you notice the Act divides by 52 rather than 52.14, which means the intuitive answer is a penny or two over and therefore a prohibited payment. The notice period looks trivial until you notice that Grounds 1 and 1A carry a twelve month condition that attaches to the date in the notice rather than to the date of service — so you can serve inside the first year, but you cannot ask for possession inside it.

Neither tool stores anything or sends anything anywhere. Refresh the page and the numbers are gone.

More guidance

Tenancy depositsProtection, prescribed information, deductions and the penalties for getting it wrong. Section 8 grounds for possessionAll the grounds with notice periods and the evidence each one needs. Renters' Rights Act 2026What changed on 1 May 2026 and what is still not in force. All guidesThe full index of free, ungated guides for landlords in England.
Free Landlord Tools and Calculators: Free, ungated tools for the arithmetic that carries a penalty if you get it wrong.
The short version at a glance — free to share with a link to this page.

The tools are free. The reminders are the hard part.

The Landlord Alliance tracks the dates these calculators produce against each of your tenancies, so a deadline never passes while you are looking somewhere else. £10 a month, cancel anytime.

See what is included
Ground 8 arrears threshold checkerWhether your arrears meet the mandatory ground, with the universal credit disregard applied and your notice dates worked out.

England only. Position as at 31 August 2026. General information from a landlord, not legal advice. Check every output against the primary source before you act on it.

Related: All landlord guides · Tenancy deposits · Section 8 grounds