UK Mortgage Guide (Types, Rates, Best Deals 2026)
UK mortgages — fixed vs tracker, repayment vs interest-only, remortgaging, best mortgage rates 2026, and how lenders assess affordability.
A mortgage is likely the largest financial commitment you will ever make. With mortgage rates in 2026 stabilising around 4-5% for fixed-rate deals (down from the peaks of 2023 but still well above the historic lows of 2021), choosing the right mortgage type and structure is crucial. This guide covers all the key considerations: fixed vs tracker, repayment vs interest-only, how affordability is assessed, and when to remortgage. See also our guides on First-Time Buyer, Property Tax, and Budgeting Guide.
Mortgage Types
Repayment mortgages are the standard: each monthly payment covers both interest and a portion of the capital borrowed. By the end of the term, you own the property outright. Interest-only mortgages require you to pay only the interest each month — the capital is repaid at the end of the term via a separate investment vehicle (like an ISA or pension). Interest-only is riskier because you need a repayment plan, and lenders are stricter about affordability.
Fixed-rate mortgages lock your interest rate for a set period (2, 3, 5, or 10 years). This gives payment certainty — you know exactly what you will pay regardless of what the Bank of England does. Tracker mortgages follow the Bank of England base rate plus a fixed margin — they can be cheaper if rates stay low but more expensive if rates rise. Discount mortgages offer a discount off the lender's Standard Variable Rate (SVR), typically for 2-3 years. Capped mortgages give you the benefit of a variable rate but guarantee your rate will not go above a set level.
Mortgage Rates 2026
Mortgage rates in June 2026 are broadly in the 4-5% range for fixed-rate products. The best 2-year fixed rates are around 4-4.5%, 5-year fixes around 4-4.5%, and 10-year fixes around 4.5-5%. Tracker rates typically sit at the Bank of England base rate (currently 4.5%) plus a margin of 0.5-1.5%. Higher Loan-to-Value (LTV) mortgages have higher rates: 90% LTV mortgages are around 5-6%, 75% LTV around 3.5-4%, and 60% LTV around 3-4%.
Booking fees (also called product fees or arrangement fees) can range from £0 to £2,000. A fee-free deal often has a higher interest rate, while a fee-saver deal requires upfront payment but gives a lower rate. The best choice depends on how large your mortgage is — for a small mortgage, a fee-free deal with a higher rate may be cheaper overall. Always compare the total cost over the deal period. Use comparison websites and consider a whole-of-market mortgage broker.
Affordability Assessment
Lenders assess affordability by looking at your income, outgoings, and the potential impact of interest rate rises. Typically, you can borrow 4-4.5 times your annual income. Some lenders go up to 5.5 times for higher earners. The affordability stress test checks whether you could still afford the mortgage if rates rose by 3% above the initial rate. Lenders review your bank statements for 3-6 months to assess your spending habits — takeaways, subscriptions, and discretionary spending all count.
Self-employed applicants need 2-3 years of business accounts or tax returns. Contractors and freelancers may need to show a consistent income pattern. Lenders check your credit history thoroughly — missed payments, defaults, and County Court Judgments (CCJs) can reduce your borrowing capacity or lead to rejection. Using a mortgage broker can help you find lenders who specialise in your circumstances, whether you are self-employed, have complex income, or have minor credit issues.
Deposit and LTV Impact
Your deposit size determines your Loan-to-Value ratio, which directly affects the interest rates available. A 90% LTV mortgage (10% deposit) might have a rate of 5-6%. An 85% LTV (15% deposit) might have 4.5-5%. A 75% LTV (25% deposit) might have 3.5-4%. The difference between a 90% and 75% LTV on a £200,000 mortgage could save you £2,000-£3,000 per year in interest — over a 5-year fix, that is £10,000-£15,000 saved.
The Mortgage Guarantee Scheme (formerly Help to Buy) supports 95% LTV mortgages, making them available despite higher rate environments. This scheme is available to both first-time buyers and home movers. However, the rates are higher and you need to pass strict affordability checks. A 10% deposit is the sweet spot for most first-time buyers — it gives access to competitive deals without requiring years of additional saving.
Remortgaging
When your current fixed-rate deal ends, you are moved to the lender's Standard Variable Rate (SVR) — typically 7-8% in 2026. To avoid this, you need to remortgage (switch to a new deal). The best time to start the process is 3-6 months before your current deal ends. Most lenders let you secure a new rate up to 6 months in advance, and you can switch to a new deal with the same lender (a product transfer) or move to a completely different lender (a remortgage).
A product transfer is simpler — no new valuation or legal work is usually needed. A remortgage to a different lender often gives access to better rates but requires a new valuation, legal work (conveyancing), and affordability checks. Compare the total cost including any early repayment charges, exit fees, valuation fees, and legal fees. A mortgage broker can handle the process and often saves you more in lower rates than their fee. Never stay on the SVR if you can avoid it — the extra cost is significant.
Additional Borrowing
If you need to borrow more money against your property, you have several options: a further advance (additional borrowing from your current lender, usually with minimal fees), a remortgage for a higher amount (switch lenders and increase borrowing), a secured loan (a second charge on your property, typically higher rate than a mortgage), or a home equity release for over-55s (lifetime mortgage or home reversion scheme — complex and expensive, get advice).
Common reasons for additional borrowing include home improvements (which can add value), debt consolidation (paying off more expensive debts), purchasing a second property, or funding education costs. Before borrowing more, consider whether the additional debt is affordable and whether the purpose justifies the cost. Home improvements that add value are usually the best use of additional mortgage borrowing — they can increase your property's worth by more than the cost of the work.
Mortgage Comparisons and Switching
The mortgage market is constantly evolving, with new deals appearing regularly. The best approach is to compare the "total cost over the deal period" — not just the interest rate. A mortgage with a slightly higher rate but no fee may be cheaper than a lower-rate deal with a £1,999 product fee. For a £150,000 mortgage over 2 years, a 4.5% rate with a £0 fee costs £13,500 in interest; a 4.0% rate with a £1,500 fee costs £12,000 in interest plus the fee = £13,500 — the same total cost. Use online mortgage comparison tools to calculate the true cost over the deal period.
It is also worth considering "porting" your mortgage if you move house. Most fixed-rate deals can be transferred (ported) to a new property, avoiding early repayment charges. If you are staying with the same lender, a product transfer is usually the simplest option — no new affordability checks (unless you are increasing borrowing), no valuation (for like-for-like), and minimal legal fees. If you switch to a different lender, you will need a new valuation, new legal work, and full affordability assessment — but you may get access to a much better rate. Always compare the total cost of remortgaging (including any early repayment charge, exit fees, arrangement fees, valuation fees, and legal fees) against the potential saving from a lower rate. A whole-of-market mortgage broker can do this comparison for you and present the best options.
Buy-to-Let Mortgages
If you are buying a property to rent out, you need a buy-to-let (BTL) mortgage, not a residential mortgage. BTL mortgages are assessed differently: lenders focus on the rental income rather than your personal income. The typical requirement is that the expected rent covers the mortgage payment by at least 125-145% (the "interest coverage ratio" or ICR). A common stress test is that the rent must cover 125% of the mortgage payment at a notional rate of 5.5-6%. Some lenders use the actual pay rate instead. BTL mortgage rates are typically 1-2% higher than residential rates.
BTL mortgages are available on interest-only or repayment basis. Interest-only is more common because the rental income only needs to cover the interest, maximising cash flow. However, you need a separate repayment strategy (selling the property or using other savings) to repay the capital at the end of the term. BTL deposits are typically higher — usually 25% minimum, with the best rates at 40% LTV or lower. Limited company BTL mortgages (for properties held in a corporate structure) are widely available but come with different criteria and rates. In 2026, BTL remains challenging due to higher interest rates, Section 24 mortgage interest restriction (see our Property Tax guide), and regulatory requirements, but can still be profitable for well-chosen properties with strong rental demand.
Mortgage Protection Insurance
Lenders do not require you to have mortgage protection insurance, but it is strongly recommended. The main types are: decreasing term life insurance (pays off the mortgage if you die, the sum assured decreases as the mortgage balance reduces); level term life insurance (fixed sum, independent of mortgage balance — more flexibility); critical illness cover (pays a lump sum if you are diagnosed with a specified serious illness); accident, sickness, and unemployment (ASU) insurance (covers mortgage payments if you cannot work due to accident, illness, or redundancy for up to 12 months); and income protection insurance (replaces a percentage of your income if you are unable to work due to long-term illness or disability).
Life insurance is particularly important if you have a partner or children who rely on your income to pay the mortgage. Many lenders offer "Mortgage Payment Protection Insurance" (MPPI) at the point of sale, but standalone income protection is often better value and more comprehensive. Check whether your employer provides death-in-service benefit or income protection as part of your employment package before buying separate cover. For most homeowners, decreasing term life insurance (the cheapest option) covering the mortgage balance plus critical illness cover is a sensible combination. Premiums for these policies are based on age, health, lifestyle, and the sum assured — locking in cover when you are young and healthy is much cheaper.
FAQs
What is the best mortgage type in 2026?
Five-year fixed-rate mortgages offer a good balance of rate certainty and flexibility. Two-year fixes give more flexibility but less protection from rate rises.
How much can I borrow?
Typically 4-4.5 times your annual income. Some lenders lend up to 5.5 times for higher earners. Affordability is assessed based on your income and spending.
Should I fix or track?
Fix if you want payment certainty and cannot afford rate rises. Track if you believe rates will fall and you can handle the risk. In 2026, many are fixing for certainty.
When should I remortgage?
Start looking 3-6 months before your current deal ends. Arrange the new deal before your existing fix expires to avoid the Standard Variable Rate.
What LTV gives the best rates?
60% LTV (40% deposit) typically gives the lowest rates. 75% LTV gives competitive rates and is the sweet spot for most homeowners.