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£300,000 Home Loan Monthly Repayments (UK 2026)

Monthly repayments, total interest, and full cost breakdown for a £300,000 home loan in UK at 5.5% interest over 25 years.

Monthly Repayment

£1,842.26

£300,000 home loan · 5.5% interest · 25 year term · UK 2026

Loan Amount

£300,000

Interest Rate

5.5% p.a.

Total Interest

£252,679

Total Repaid

£552,679

Full Repayment Breakdown

Detail	Amount
Loan Principal	£300,000
Annual Interest Rate	5.5%
Loan Term	25 years (300 months)
Monthly Repayment	£1,842.26
Total Interest Paid	£252,679
Total Amount Repaid	£552,679

How Much Does a £300,000 Home Loan Cost Per Month in UK?

A £300,000 home loan in UK at 5.5% interest over 25 years costs £1,842.26 per month. Over the full term you'll repay £552,679 in total, meaning the interest cost alone is £252,679 — 84% of the original loan amount.

To reduce the total cost, consider making extra repayments when possible, or choosing a shorter loan term if your budget allows. Even small additional monthly payments can save thousands in interest over the life of a home loan.

Use our Loan Affordability Calculator to check whether this repayment fits your income, and our Loan & ROI Calculator to compare different scenarios.

⚠️ Disclaimer: These calculations are estimates based on a fixed interest rate and do not account for rate changes, fees, or individual lender terms. Always get a formal quote from a licensed lender before committing.

What Does a £300,000 Home Loan Really Cost in UK?

A £300,000 mortgage is typical for mid-range properties in the UK. UK house prices vary enormously by region — £300,000 buys a family home in many northern cities but barely a studio flat in London.

UK mortgage rates rose sharply from 2022 as the Bank of England raised its base rate. As of 2026, 5-year fixed rates sit around 4.5–5.5% for borrowers with a 20%+ deposit and good credit. Tracker mortgages follow the base rate directly, while SVR (Standard Variable Rate) can be much higher.

UK mortgages are typically 25-year terms (vs 30 years in the US). Stamp Duty Land Tax (SDLT) adds significant upfront costs — on a £500,000 property, SDLT can reach £12,500 for second-time buyers. First-time buyers benefit from SDLT relief up to £500,000.

Over the full 25-year term at 5.5%, you'll repay £552,679 in total — meaning £252,679 in interest alone. That's 84% of the original loan amount paid purely in interest. This is why extra repayments, even small ones, can save significantly over the long term.

How Extra Repayments Reduce Your £300,000 Loan

Extra Monthly Payment	Years Saved	Interest Saved	New Loan Term
+£100/mo	1–2 years	±£33,161	24–25 years
+£300/mo	3–4 years	±£77,375	22–21 years
+£500/mo	5–7 years	±£121,589	20–18 years
+£1,000/mo	8–12 years	±£198,964	17–13 years

💡 Quick tip: Even one extra annual payment (paying 13 months instead of 12) on a £300,000 home loan can cut 2–3 years off the term and save tens of thousands in interest. Use your annual bonus or tax refund for this.

Frequently Asked Questions

A £300,000 home loan at 5.5% interest over 25 years has a monthly repayment of approximately £1,842.26. Over the full term you'll repay £552,679 in total, of which £252,679 is interest.

Most lenders in UK use a debt-to-income ratio of 28–35% of gross monthly income for housing costs. For a monthly repayment of £1,842.26, you'd typically need a gross monthly income of £6,448–£7,369. Use our Loan Affordability Calculator for a more precise figure.

Yes — significantly. A 20% deposit on a £300,000 loan means you're borrowing £240,000 instead of the full amount, saving £50,536 in total interest. A larger deposit also typically gets you a better interest rate and avoids mortgage insurance costs.

On a variable-rate home loan, rising rates increase your monthly repayment directly. A 1% rate increase on £300,000 adds approximately £28–£30/month to your repayment. Fixed-rate loans protect against this but lock you into the current rate for a set period.

A shorter term means higher monthly repayments but dramatically less total interest. On £300,000 at 5.5%, the difference between a 20-year and 30-year term is typically £660–£990 in total interest savings. If you can afford the higher monthly payment, a 20-year term is almost always better value.

In the UK, most mortgages allow limited overpayments (typically 10% per year) without penalty during a fixed-rate period. Check your specific loan terms. Extra repayments made to principal directly reduce the interest charged on your outstanding balance.