Free · no sign-up · nothing stored
Free calculators and tools for UK landlords
Eleven tools that answer the numbers a landlord is asked every week, each one a working page rather than a download.
MoreShow less
Type the figures and see the answer.
- ICR stress testInterest cover, LTV, maximum borrowing and what is left after Section 24 tax. Would a lender agree the loan?
- Rental yieldGross yield, net yield after voids, fees and costs, and the return on the cash you put in. Shareable link.
- Stamp duty on an additional propertyStamp Duty Land Tax with the 5% higher rate, band by band, for England and Northern Ireland.
- Rent arrears trackerA running arrears ledger, measured against the three-month Ground 8 level. Download it as a CSV.
- Section 13 rent increase noticeForm 4A filled in, with the start date checked against the two-month, 52-week and period-start rules.
- Landlord compliance check-upTen checks on gas, electrical, deposit, licensing and records, scored with a to-do list.
- Section 8 ground checkerYour reason for possession, the ground that fits, the notice it needs and a downloadable evidence checklist.
- Pet request reply builderThe written reply a tenant's pet request needs within 28 days, with a pet agreement addendum.
- HMO room size and amenity checklistMinimum bedroom sizes, the safety checklist and a link to your council's licensing scheme.
- EPC C cost cap calculatorWhat is left of the £10,000 cap, whether your quotes fit under it, and an exemption evidence file.
- Awaab's Law hazard clockThe deadlines after a damp or mould report, counted in working days, and a written summary for the tenant.
- PRS database postcode checkerEach property's registration window by postcode, the £65-a-property fee total and a readiness checklist.
Common questions
Are these calculators really free?
Yes. There is no sign-up, no email gate and no card. Each one runs in your browser and nothing you type is stored or sent anywhere.
Can I share a result?
The yield and stamp duty calculators write your figures into the page address, so you can copy a link and send it to a broker or a co-investor. The rent arrears tracker downloads as a spreadsheet.
Where do I start if I am buying a property?
Stamp duty first, since it is cash in on day one, then the rental yield calculator with that figure as a purchase cost, then the stress test to see whether a lender would agree the loan and what is left after tax.
Keep the figures monitored
A calculator answers once. LetBuddy keeps the rent that arrived, the expenses that went out and the dates that matter on each property. Your first property is free, permanently, no card needed.
Free for your first property · No card · 2-minute setup
The week's landlord law and tax changes, on a Sunday
One email a week with what changed and what it means for you, drawn from the same posts as the news page. No product news, no offers. Unsubscribe in one click.
Read this next
- Rental yield calculatorGross, net and cash-on-cash, with a link you can send. Pre-tax; the stress test does the tax.
- Buy-to-let stress test calculatorCheck ICR, LTV and maximum borrowing against a lender's rules. No sign-up.
- Stamp duty on an additional propertyThe 5% higher rate band by band, for a buy-to-let in England or Northern Ireland.