United Kingdom 💰 GBP Last updated2026-05-28

Mortgage Calculator United Kingdom

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Quick answer (United Kingdom)

A £250,000 mortgage at 4.5% over a 25-year term works out to a monthly payment of about £1,390, with total interest of £166,874 over the full term.

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Mortgage Calculator

GBP

Home Value

LTV 80% · No PMI ✓

Loan Amount

Interest Rate

Term

Total Monthly

£1,806

PITI

Principal + Interest

£1,390

40% goes to interest

Total Interest

£166,874

over 25 years

Monthly Breakdown

Principal & Interest£1,390

Property Tax (1.1%/yr)£286

Homeowner's Insurance (0.5%/yr)£130

Total Monthly£1,806

Principal vs Interest Split

60% principal

40% interest

✨ Live recalculation·Includes P&I, property tax, insurance. Estimates only — consult a licensed lender for exact rates.

Reviewed by

Aisha Rahman, CFP®, MBA LinkedIn ↗

CFP® with 12+ years in mortgage & retirement planning.

Local context

Mortgages in United Kingdom

Typical loan

£250,000

in United Kingdom

Typical rate

4.5% p.a.

prime borrower, 2026

Typical term

25 years

most common

Market overview

UK mortgages predominantly use a fixed-rate-for-N-years structure (typically 2, 5, or 10 years) before reverting to a Standard Variable Rate (SVR). The average UK term is 25-35 years. Lenders include Nationwide, Halifax, Barclays, HSBC, Santander, and Natwest. Following 2023-24 rate volatility, fixes have settled around 4-5% for prime borrowers.

Why 4.5% is the typical rate

4.5% is the typical 5-year fixed rate for a 75% LTV mortgage on a prime borrower. First-time buyer schemes and 90%+ LTV will see 5-6%.

Tax & regulatory notes

No mortgage interest tax relief for personal residences (abolished 2000). Stamp Duty Land Tax (SDLT) applies on purchases above £250,000 (first-time buyer exemption up to £425,000). Buy-to-let mortgages have separate rules and reduced interest deductibility (Section 24).

🧮 Worked example

A £250,000 mortgage at 4.5% over a 25-year term

Loan amount

£250,000

Annual interest rate

4.5%

Term

25 years (300 months)

Monthly payment

£1,390

Total interest paid

£166,874

Total paid (principal + interest)

£416,874

❓ FAQ (United Kingdom)

Common questions in United Kingdom.

What is a 2-year fix vs 5-year fix in UK mortgages?

A "fix" is the initial period your interest rate is locked. 2-year fixes carry lower headline rates but require remortgaging sooner (with fees and rate-risk). 5-year fixes give longer rate certainty. After the fix ends, you revert to the lender's SVR (typically 7-9%) unless you remortgage.

What is LTV in UK mortgages?

Loan-to-Value — the percentage of the property price you're borrowing. 60-75% LTV gets the best rates. 90-95% LTV (first-time buyer territory) sees a 1-2% rate premium and may require lender's mortgage insurance.

Help to Buy vs shared ownership — which lowers my mortgage?

Help to Buy ISA/Lifetime ISA gives a 25% bonus toward the deposit (up to £3,000-£1,000/year), reducing the loan you need. Shared ownership splits ownership with a housing association — you only mortgage the share you buy. Both lower your headline mortgage, with different long-term implications.

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