Welcome to our Mortgage and Stamp Duty Calculator 2026. Calculate your monthly mortgage repayments and 2026/27 Stamp Duty (SDLT). Our tool is updated for the latest UK tax thresholds to help first-time buyers and home movers plan their budget accurately.
Mortgage Details
Monthly Repayment
£0
Stamp Duty (SDLT)
£0
Loan Amount
£0
Total Interest
£0
Total Cost of Property
£0
Stress Test (+3%)
£0
Planning your house move
2026/27 SDLT Rates
Our calculator uses current HMRC tiers. Note: First-Time Buyer relief is capped at properties under £500k. If you buy for £500,001, standard rates apply.
Stress Testing
We include a mandatory +3% stress test. Lenders use similar buffers to ensure you can still afford repayments if rates climb.
This tool was created by a home mover, for home movers – Find out more
