Free tools for UK landlords
Quick, accurate calculators and checkers for the everyday decisions UK landlords make. No signup, no email gates — just useful tools, built by landlords for landlords.
- Free + paid checks
Free tenant application & referencing
Send a prospective tenant a free application link and get their details straight back. Then run a credit check or full tenant reference online — no account needed.
Open tool → - Free
Rent increase calculator
Section 13 notices often go wrong on dates. Works out the earliest a new rent looks able to start under the once-a-year gap (52 weeks, sometimes 53), two months' notice and the rental-period rule, the latest date to serve, and the increase in £ and %.
Open tool → - Free
Rent affordability calculator
Can your tenant afford the rent? Check their gross income against the 30× monthly rent benchmark letting agents use, and a guarantor against the higher 36× bar.
Open tool → - Free PDF
Tenant reference form (PDF)
A free, fillable reference request form to print or email an applicant — ID, income, previous landlord and their written consent to a credit check.
Open tool → - Free PDF
Guarantor agreement template
A free deed of guarantee covering rent, tenant obligations and damage — with the witness and execution formalities that decide whether a guarantee is actually enforceable.
Open tool → - Free PDF
Landlord reference letter template
Asked to give a reference for a former tenant? A factual template covering payment record, condition, deposit deductions and whether you'd let to them again.
Open tool → - Free template
Previous landlord reference request
Vetting an applicant? A letter asking their previous landlord about rent paid on time, arrears, condition, notice and whether they'd let again.
Open tool → - Free template
Employer reference request
A letter asking an applicant's employer to confirm job title, start date, contract type and salary, plus how to check the employer is real.
Open tool → - Free PDF
Landlord GDPR check
Six questions from the ICO's own guidance. Find out whether you owe the £52 data protection fee (£47 by direct debit), why, and what you owe your tenants either way — then get a privacy notice built from your answers.
Open tool → - Postcode-aware
HMO licence checker
Enter your postcode and answer a few questions. Find out if your rental is an HMO, whether you need a mandatory licence, and which additional or selective licensing schemes your council currently runs.
Open tool → - Live update
Rental yield calculator
Gross yield, net yield, monthly cashflow and return on cash invested for any UK buy-to-let. Void allowance and management fees built in, with a Section 24 note on what it does to the post-tax picture.
Open tool → - 2026 rates
Stamp duty calculator
SDLT for buy-to-let and second-home purchases in England & Northern Ireland — with the 5% additional dwelling surcharge that came in on 31 October 2024. 2026 rates.
Open tool → - ICR stress test
BTL mortgage calculator
Monthly payment, total interest and the bit most calculators skip: the ICR stress test your BTL lender will run. Find out if your rent qualifies before you apply.
Open tool → - 76 councils
HMO licensing by council
Browse HMO and selective licensing guides for every UK council we track — 76 councils with active or upcoming schemes, refreshed weekly.
Open tool →
Ready to do more than calculate? RentFig's tenant onboarding software turns one-off checks into a full pipeline — shareable application links, document collection and one-click referencing.
Already a landlord? Run RentFig on autopilot
RentFig tracks every tenancy, rent payment, certificate and compliance deadline for UK landlords. Free plan for up to 2 tenancies.