UK Mortgages Explained — Everything You Need to Know in 2026
Buying a home is the biggest financial commitment most people will ever make. Whether you are a first-time buyer trying to get on the property ladder or a homeowner looking to remortgage, understanding how mortgages work — and how to get the best deal — can save you tens of thousands of pounds over the life of your loan. This guide covers the key things every UK borrower should know.
How Do Mortgage Repayments Work?
When you take out a repayment mortgage (the most common type in the UK), your monthly payment covers two things: a portion of the loan itself (the capital) and the interest charged by the lender. In the early years, most of your payment goes towards interest. As the loan balance shrinks over time, more of each payment goes towards capital, and by the end of the term the mortgage is fully repaid.
The calculator above uses this standard repayment method. It assumes a fixed interest rate for the full term to give you a clear comparison figure. In practice, most people take a fixed-rate deal for 2 or 5 years and then remortgage when the deal ends.
Current UK Mortgage Rates — September 2026
The Bank of England base rate currently stands at 3.75%. Here is a snapshot of average mortgage rates as of early September 2026:
- Average 2-year fixed rate: around 4.98%
- Average 5-year fixed rate: around 5.01%
- Best 2-year fixed (60% LTV): from around 4.0–4.3%
- First-time buyer 2-year fixed (95% LTV): from around 5.29%
Rates vary significantly depending on your loan-to-value ratio, credit history, and the lender. A larger deposit unlocks lower rates — which is one reason the LTV figure matters so much. Visit our mortgages page for the latest rate comparisons.
What Is Loan-to-Value (LTV) and Why Does It Matter?
Loan-to-value (LTV) is the size of your mortgage expressed as a percentage of the property price. For example, if you buy a £250,000 house with a £25,000 deposit, your mortgage is £225,000 and your LTV is 90%.
LTV is one of the biggest factors lenders use to set your interest rate. The lower your LTV, the lower the risk to the lender, and the better the rate you will be offered. Key LTV thresholds are:
- 95% LTV (5% deposit) — the minimum most lenders accept; rates are highest at this level
- 90% LTV (10% deposit) — a significant improvement in available rates
- 85% LTV (15% deposit) — access to a wider range of competitive deals
- 75% LTV (25% deposit) — a sweet spot where most of the best rates become available
- 60% LTV (40% deposit) — typically the very lowest rates on the market
How Much Can You Borrow?
Most UK lenders will offer between 4 and 4.5 times your annual household income, though some specialist lenders stretch to 5 or even 6 times for certain professions. For a couple earning a combined salary of £60,000 before tax, that typically means a mortgage of £240,000 to £270,000.
Lenders also run an affordability assessment, which factors in your regular outgoings, existing debts, and whether you could still afford repayments if interest rates rose. Use our budget planner to get a clear picture of your monthly finances before applying.
Average UK House Prices in 2026
The average UK house price is currently around £311,000, though this varies enormously by region. In London, the average is well above £500,000, while in parts of the North East and Scotland, you can buy a property for under £150,000. First-time buyers typically pay less than the overall average, with the average first-time buyer deposit ranging from around £25,800 in Scotland to over £130,000 in London.
Fixed Rate vs Variable Rate Mortgages
The two most common mortgage types in the UK are:
- Fixed-rate mortgages — your interest rate is locked for a set period (usually 2 or 5 years), so your monthly payment stays the same regardless of what happens to the Bank of England base rate. Most popular with buyers who want certainty.
- Variable-rate mortgages — your rate can go up or down. These include tracker mortgages (which follow the base rate plus a margin) and the lender's standard variable rate (SVR), which is usually much higher. SVR is what you move onto if you do not remortgage when your fixed deal ends.
The key decision is whether you value the certainty of a fixed payment or the possibility of lower rates with a variable deal. In the current market, most borrowers opt for a fixed rate, with 5-year fixes being the most popular choice.
Tips to Reduce the Total Cost of Your Mortgage
- Save a bigger deposit — every LTV threshold you cross unlocks better rates. Going from 90% to 85% LTV can save hundreds of pounds a year.
- Choose a shorter term — a 20-year mortgage costs far less in total interest than a 30-year one, though the monthly payments are higher. Use the calculator above to compare.
- Overpay when you can — most lenders allow you to overpay up to 10% of your balance per year without penalty. Even small overpayments can shave years off your mortgage and save thousands in interest.
- Always remortgage before your deal ends — never let your mortgage roll onto the lender's SVR. Start shopping for a new deal at least 3 months before your current fix expires.
- Use a mortgage broker — they can access deals not available directly, and a whole-of-market broker will search across all lenders on your behalf.
What is loan-to-value (LTV)?
LTV is the size of your mortgage expressed as a percentage of the property value. A 10% deposit gives you a 90% LTV. Lower LTVs unlock better interest rates — the biggest improvements come at the 90%, 85%, 75%, and 60% thresholds.
What mortgage rate should I use in the calculator?
Use the rate you have been quoted by a lender or broker. If you are just exploring, the current average 2-year fixed rate is around 4.98% and the average 5-year fixed rate is around 5.01%. Rates vary widely by LTV and lender — check our mortgages page for the latest figures.
How much can I borrow for a mortgage UK?
Most UK lenders offer 4 to 4.5 times your annual household income, though some stretch to 5 or 6 times for certain professions. A couple earning £60,000 combined could typically borrow £240,000 to £270,000. Lenders also assess your outgoings, existing debts, and ability to pay if rates rise.
What is the difference between a fixed and variable rate mortgage?
A fixed-rate mortgage locks your interest rate for a set period (usually 2 or 5 years), giving you a predictable monthly payment. A variable-rate mortgage can go up or down with the market. Most UK buyers choose fixed rates for the certainty they provide.
What is a repayment mortgage?
A repayment mortgage means each monthly payment covers both the interest and a portion of the loan itself, so by the end of the term the mortgage is fully paid off. This is the most common type in the UK and the method this calculator uses. The alternative — an interest-only mortgage — only pays the interest each month, meaning the full loan amount is still owed at the end.
How can I reduce my monthly mortgage repayments?
You can extend the mortgage term (though this increases total interest paid), save a larger deposit to reduce the loan amount, or find a lower interest rate. Improving your credit score and reducing existing debts before applying can also help you qualify for better deals.
Does this calculator include stamp duty?
No — stamp duty is a separate upfront cost paid when you purchase the property. Use our stamp duty calculator to work out how much you would owe. First-time buyers in England and Northern Ireland pay no stamp duty on the first £425,000 of a property priced up to £625,000.
What other costs should I budget for when buying a house?
Beyond the deposit and stamp duty, expect to pay for a mortgage arrangement fee (often £500 to £2,000), a property survey (£250 to £600+), solicitor or conveyancing fees (£800 to £1,500), and removal costs. You may also need buildings insurance from the day of exchange. Budget at least £3,000 to £5,000 for these additional costs.
Should I get a 2-year or 5-year fixed mortgage?
A 2-year fix gives you more flexibility to remortgage sooner if rates drop, but you pay remortgage fees more often. A 5-year fix gives longer certainty and fewer fees. In the current market, 5-year fixes are the most popular choice among UK borrowers because the rate difference between 2-year and 5-year deals is small.
What happens when my fixed rate ends?
When your fixed-rate deal expires, your mortgage moves onto the lender's standard variable rate (SVR), which is usually much higher — often 7% or more. Always start looking for a new deal at least 3 months before your fix ends to avoid paying more than you need to.
Can I overpay my mortgage?
Most lenders allow you to overpay up to 10% of your outstanding balance per year without an early repayment charge. Even small regular overpayments — £50 or £100 a month — can take years off your mortgage and save thousands in interest over the full term.
More Free Financial Tools
Planning a property purchase? Try our other free UK calculators:
- Stamp Duty Calculator — work out how much stamp duty you will owe on your purchase
- Savings Calculator — see how quickly your deposit fund could grow with compound interest
- Budget Planner — track your income and outgoings to find out what you can afford
- Compare Savings Accounts — find the best rates for your deposit savings