Free UK landlord calculators
Quick, accurate tools used by serious UK landlords. Rental yield, BTL stamp duty, Section 24, MEES compliance, ROI and refinance — built on current 2025/26 rates and rules.
Renters' Rights Act 2025 Tracker
Track which provisions are in force, understand your obligations, and get a personalised landlord compliance checklist.
View trackerRental Yield Calculator (UK)
Work out the gross and net rental yield on any UK buy-to-let in seconds. Includes voids, management fees, maintenance and insurance — the true return after costs.
Open toolBuy-to-Let Mortgage Calculator
Monthly cost, total interest, and the Interest Cover Ratio lenders use to underwrite — at both pay rate and stressed rate.
Open toolBTL Stamp Duty Calculator
Current SDLT bands for additional properties in England & NI, including the 5% surcharge raised October 2024. Full band-by-band breakdown.
Open toolSection 24 Tax Impact Calculator
Quantify how Section 24 changes your tax bill as a higher-rate landlord. Compare the old full-deduction method against the current 20% credit and see the £ delta.
Open toolMEES Compliance Checker
From April 2023 it has been unlawful to let a property in England & Wales with an EPC rating of F or G. Civil penalties go up to £30,000 per breach (Apr 2025).
Open toolBuy-to-Let ROI Calculator
Cash-on-cash return on the actual capital you put in. Adjusts for stamp duty, refurb, voids and ongoing costs — the number that matters for portfolio scaling.
Open toolRemortgage Savings Calculator
Compare your current BTL rate against a new product, after product fee and legal costs. Returns monthly saving, break-even months, and net 5-year benefit.
Open toolSave every calculation to your portfolio
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