Best mortgage rates · Buy-to-let · August 2026

3-year fixed buy-to-let remortgage rates, when lenders price the middle ground.

BTL lenders concentrate remortgage ranges at 2 and 5 years; 3-year fixes surface intermittently. When they’re available, you’ll find the best of them here — refreshed nightly.

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Refreshed nightly — rates as of 27 August 2026

Loan to valueLTV = loan ÷ property value. A £50k deposit on a £250k home is 80% LTV.

Lender	Initial rate	Monthly	Fixed until	Then	Product fee
1 T The Mortgage WorksBest rate	4.19%	£698on £200,000 int-only	Oct 2029	8.24%	None	See full deal →
2 T The Mortgage Works	4.89%	£815on £200,000 int-only	Oct 2029	8.24%	£1,495	See full deal →

Monthly payments illustrated on a £200,000 interest-only; fees not added to the loan. Rates shown are for comparison — full lender criteria apply.

Most BTL lenders build their remortgage ranges around 2 and 5-year terms, and 3-year products appear when funding economics make the middle tenor attractive to offer. The gap is structural rather than seasonal — a landlord wanting 3 years must often wait for the market to open up, or weigh whether the 2 or 5-year alternative better fits their plans. The ICR stress-test difference between these terms matters at remortgage: shorter fixes are stressed harder, which can affect how much equity you’re able to release.

When a 3-year remortgage fix is available, it can serve a specific profile: a landlord who bought with a 5-year fix and wants to ride to a natural sale or portfolio consolidation point without fixing all the way to year five again. It also suits those who expect a material rent review before a 5-year window closes, improving ICR for a future remortgage. If no 3-year products are listed today, the live 2 and 5-year alternatives below are your nearest options — and this page re-ranks automatically each night.

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Most comparison tables license the same third-party panel. We build ours directly from lender product data, run through our own quality-assurance pipeline — so we sometimes list deals other sites miss.

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Frequently asked questions

How these tables work, and how to choose between the deals on them.

01Why do BTL lenders rarely offer 3-year remortgage products?

Product range decisions follow lender funding strategy and the economics of fixed-rate hedging, not borrower demand. The 2 and 5-year terms map to how lenders can most efficiently fund fixed rates in wholesale markets. Three-year BTL products appear when the spread is commercially viable; they thin out or disappear when it isn’t. That’s a market constraint, not a gap in our data — which refreshes nightly from over 40 lender product books.

02Is the ICR stress test different on a 3-year remortgage fix compared with 5 years?

Yes. Most lenders treat the 5-year fix at or close to the actual pay rate for ICR purposes, but apply a higher notional rate to shorter terms — typically the pay rate plus 2% or a floor around 5.5%. At remortgage, this is reassessed against current stress rates, not the ones in place when you first borrowed. A landlord with a tightly covered loan may find a 5-year fix unlocks more borrowing than a 3-year, even before rate comparison.

03Could a product transfer be a better route than a 3-year remortgage fix?

Possibly, if your existing lender offers a competitive 3-year rate via product transfer. The key advantage is that product transfers skip the full affordability re-assessment — useful if your circumstances have changed since origination, or if passing today’s stress test would reduce your maximum loan. The downside is you’re limited to your current lender’s pricing and cannot take extra borrowing. Both routes are worth pricing before committing.

04What happens to my BTL if I remortgage onto a 3-year fix and then want to sell?

Selling inside the fixed term triggers early repayment charges unless the product is portable or ERC-free. Most fixed-rate BTL remortgages are not portable in the same way residential deals are — portability requires re-qualifying on the new property, and a BTL landlord selling one property doesn’t automatically transfer to another. Check the ERC schedule before fixing, and account for it in any exit calculations.

3-year fixed buy-to-let remortgage rates, when lenders price the middle ground.

Other terms for remortgages

3-year fixed for other borrowers

We ingest the data ourselves

Refreshed every night

Mortgages only

Frequently asked questions

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