Calculators
Straight answers on mortgages, tax and savings. Every figure is worked from published rates, with the source and check date on each page.
Mortgage repayment calculator
Work out the monthly payment on a mortgage, and see what the term costs you in total interest.
Stamp duty calculator
Work out the tax on a property purchase anywhere in the UK, including first-time buyer relief and the additional property rules.
Compound interest calculator
See what regular saving turns into over time, and how much of the final figure is interest rather than your own money.
Mortgage overpayment calculator
Find out what paying a bit extra each month saves you in interest, and how many years it takes off the term.
Maintenance loan calculator
See how much maintenance loan you get for 2026/27 from the two things that decide it: household income and where you live while studying.
Student Finance Wales calculator
See your 2026/27 Welsh maintenance support: the total is fixed, and household income decides how much arrives as grant rather than loan.
SAAS funding calculator
See your 2026/27 SAAS bursary and loan from the two things that decide it: your household income band and whether you count as a young or independent student.
Student Finance NI calculator
See your 2026/27 Northern Ireland grant and loan from household income and where you live, matching Student Finance NI's own tables to the pound.
First-time buyer stamp duty calculator
See what first-time buyer relief is worth on your purchase, in the one nation with a cliff edge, the one with a raised threshold, and the one with no relief at all.
Second home stamp duty calculator
Work out the tax on a second home, buy-to-let or holiday let anywhere in the UK, and see when the surcharge can be claimed back.
Stamp duty refund: eligibility and estimator
Sold your old home after paying the higher rates on a new one? See whether you qualify and roughly what comes back, then claim it free, direct.
How much will my mortgage go up?
Put in your balance, rate and years left, pick the change being talked about on the news, and see the monthly difference in pounds.
UK inflation calculator
See what an amount from any year since 1948 is worth in today's money, computed from the ONS's own index tables rather than a guess.
LBTT calculator
Work out Land and Buildings Transaction Tax on a Scottish purchase, including first-time buyer relief and the Additional Dwelling Supplement.
LTT calculator
Work out Land Transaction Tax on a Welsh purchase, including the separate higher-rate table that most calculators get wrong.
Bank of England base rate
Today's rate, the next MPC decision date, and every change since 1975 from the Bank's official database.
Stamp duty by house price
The tax at every common price from £100,000 to £2 million, across all three UK regimes, no form needed.