Mortgage Rates in 2026: What Homebuyers Need to Know Right Now
Everyone expected mortgage rates to fall in 2026 — instead the average 2-year fixed jumped from 4.84% to 5.7%. Here's why rates reversed, what it means for the 1.8 million fixed deals ending this year, and how to check your real number.
Everyone expected mortgage rates to keep falling through 2026. Instead, the average two-year fixed rate has climbed from 4.84% in March to over 5.7% by September — and roughly 1.8 million homeowners are about to roll off fixed deals taken out when rates looked nothing like this. Here's what's actually happening, why it reversed, and what to check before you fix.
Key Takeaways
The Bank of England base rate sits at 3.75%, held on a split 6-3 vote in September 2026 — but that's not the number that sets your mortgage rate.
Average 2-year fixed rates are around 5.6–5.7%, and 5-year fixed rates around 5.6–5.65% — both have risen sharply since spring, reversing the expected downward trend.
Fixed mortgage pricing tracks swap rates, not the base rate directly — and swap rates have jumped on rising gilt yields and inflation fears, pushing lenders to reprice upward, some twice in September alone.
Around 1.8 million UK fixed-rate mortgages come to an end in 2026, including many homeowners who fixed at 2021–2022 rates far below where the market sits today.
Some lenders have eased affordability stress-testing, which can unlock roughly £30,000 in extra borrowing power for otherwise-qualifying buyers — but easier approval doesn't mean easier repayments.
At a Glance — Where Rates Actually Stand (September 2026)
Rate Type
Typical Level
Direction Since Spring
Bank of England base rate
3.75%
Held since May 2025
Average 2-year fixed
~5.6–5.7%
Up from ~4.84% in March
Average 5-year fixed
~5.6–5.65%
Up, tracking 2-year rates closely
Tracker (base rate + margin)
Base rate + ~0.5–1%
Stable, but exposed to future base rate moves
Rates are averages and change weekly — always check live, personalised quotes before applying.
6 min read·September 21, 2026·0
James Calloway
Writer
What the Numbers Actually Tell Us
The base rate has been sitting still at 3.75% since May 2025, which might suggest mortgage pricing should be calm too. It hasn't been. Since March 2026, the average two-year fixed rate has climbed from roughly 4.84% to over 5.7% — a jump that caught a lot of buyers who'd budgeted around a "rates are falling" narrative off guard. Fixed mortgage rates don't move with the base rate directly; they follow swap rates, which price in what markets expect the base rate to do over the life of the fixed deal, not where it sits today.
That distinction matters enormously right now. Rising gilt yields — UK government borrowing costs — and renewed inflation concerns through 2026 have pushed swap rates up sharply, and lenders have followed, some repricing fixed products upward for a second time within the same month. Markets are currently pricing in the base rate rising toward 4.5% by March 2027 and close to 4.8% by September 2027, according to the Bank of England's own interest rate guidance — the opposite of the rate-cutting path many homebuyers were planning around a year ago.
The 1.8 Million Remortgage Wave
This is the part that matters most if your fixed deal is ending soon. UK Finance data points to roughly 1.8 million fixed-rate mortgages reaching the end of their term in 2026 — a cohort that includes homeowners who locked in five-year fixes back in 2021 and two-year fixes in 2024, both periods when rates sat meaningfully lower than today's market. According to UK Finance's mortgage market forecasts, external remortgaging is expected to rise by around 10% this year as this wave works through the system.
If you're in this group, the payment shock can be substantial — someone who fixed at roughly 2% in 2021 moving to a rate in the mid-5% range on the same balance is a genuinely different monthly payment, not a rounding error. The earlier you check your renewal date and start comparing, the more runway you have to either lock in before further rises or restructure your budget around the new number.
💡 See your real new payment before your deal ends: run your current balance, term, and today's rates through our Mortgage Calculator to model the exact monthly difference — including a refinance break-even check if you're weighing switching lender.
Affordability Rules Have Eased — Read That Carefully
Some lenders have loosened how strictly they apply the stress test that checks whether you could still afford payments if rates rose further — a change that can translate into roughly £30,000 of extra borrowing power for some buyers, depending on income and circumstances. That sounds like good news for affordability, and for approval odds it is. It doesn't, however, change the actual cost of borrowing that extra money. A larger mortgage at today's 5.6%+ rates still means a larger real monthly payment — the easing affects whether a lender will say yes, not whether the repayment gets easier to carry. Treat extra approved borrowing as a ceiling to consider carefully, not a target to reach for.
Fixed or Tracker Right Now?
With swap-rate-driven fixed pricing elevated and the base rate itself flat at 3.75% with a genuine chance of rising further into 2027, the fixed-vs-tracker decision is closer than it's been in a while — a full breakdown of how to weigh the two deserves its own look, which we cover in Fixed vs Tracker Mortgage: Which Is Better in 2026?
What This Means for You
The story most buyers were told a year ago — rates are on their way down, wait it out — isn't what's actually played out in 2026. Swap rates rose on gilt yields and inflation risk, fixed pricing followed, and the base rate itself may still move higher before it moves lower. If your fixed deal is ending this year, the sensible move is to check your renewal date now, get a real quote rather than anchoring on last year's rate expectations, and decide with the actual numbers in front of you rather than a forecast that's already been wrong once in 2026.
What You Should Do Next
Check exactly when your current fixed deal ends — most lenders let you lock in a new rate 3–6 months ahead
Get a live quote rather than assuming rates will be lower than today by the time you need to remortgage
Run your real numbers through a mortgage calculator, not just the headline monthly payment lenders advertise
If a lender offers more borrowing than you expected under eased affordability rules, stress-test it against your own budget, not just theirs
Compare a new fixed rate against your existing lender's product transfer offer — switching isn't always cheaper once fees are included
Mortgage rates in 2026 didn't follow the script — they rose when most forecasts expected them to fall, driven by swap rates and gilt yields rather than the base rate itself, which has sat at 3.75% all year. With roughly 1.8 million fixed deals ending and rates elevated compared to the last few years, the right move isn't to guess which direction rates go next — it's to check your specific renewal date, get a current quote, and run the real numbers before you commit either way.
FAQ
Why did mortgage rates rise in 2026 when the base rate stayed the same?
Fixed mortgage rates follow swap rates, which price in expectations for the base rate over the life of the deal — not where the base rate sits today. Rising gilt yields and inflation concerns pushed swap rates up through 2026, and lenders repriced fixed products upward as a result.
Is the Bank of England base rate going to rise again?
It's genuinely uncertain — the September 2026 decision to hold at 3.75% was a split 6-3 vote, and market pricing suggests a real possibility of increases toward 4.5% by March 2027. Check the Bank of England's latest decision before assuming either direction.
Should I fix my mortgage now or wait?
It depends on your risk tolerance and when your current deal ends — waiting is a bet that rates fall before you need to act, which hasn't been the pattern in 2026 so far. Get a live quote and compare it against your actual renewal timeline rather than a general forecast.
Does easier affordability stress-testing mean I should borrow more?
Not automatically. It can increase how much a lender will approve, but it doesn't reduce the real monthly cost of that extra borrowing at today's rates — check the repayment against your own budget, not just the maximum you're offered.
This article is for informational purposes only and does not constitute financial advice. Mortgage rates, lender criteria, and Bank of England policy change frequently — always check current, personalised rates and terms directly with a lender or broker before applying.
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James Calloway is a personal finance writer and real estate strategist covering housing markets across the UK, US, and beyond. With a decade of experience translating complex financial decisions into plain language, he believes the best money advice sounds like a candid conversation — not a lecture.
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