Free tools
UK landlord calculators
Free, instant calculators for UK landlords. No sign-up required - just open the tool and get your answer.
Deposit Cap Calculator
Calculate the maximum security deposit you can legally charge under the Tenant Fees Act 2019. Works for weekly and monthly rents.
Section 8 Threshold Calculator
Check whether rent arrears meet the mandatory Ground 8 threshold. Shows which possession grounds are available and whether the court must grant possession.
Notice Date Calculator
Calculate the earliest date you can apply to court after serving a Section 8 notice. Covers all standard grounds including Ground 8, 10, 11, 12, 13, and 14.
Rental Yield Calculator
Calculate gross and net rental yield for any buy-to-let property. Enter purchase price, rent, and running costs to see your return instantly.
MTD ITSA Eligibility Checker
Find out if Making Tax Digital for Income Tax applies to you as a landlord, and which phase mandates you. Covers the April 2026 and 2027 rollout.
Compliance Calendar
See when your gas safety, EICR, EPC, fire risk and other certificates need renewing. Enter your tenancy start date to map every deadline.
Automate this in STEMHQ
These calculations happen automatically inside STEMHQ. Track arrears, serve Section 8 notices, and stay RRA 2026 compliant without doing the maths yourself.
All calculators are for guidance only and do not constitute legal or financial advice. Always verify with current legislation or a qualified professional.