Buy-to-Let Mortgage Rates: What Landlords Actually Pay in 2026
A buy-to-let mortgage rate is the interest rate charged on a mortgage secured against a property you let to tenants rather than live in yourself. Buy-to-let rates sit above residential rates, are priced almost entirely on loan to value and product term, and are quoted separately from the product fee, which is often where the real cost hides. This page covers pricing; our buy-to-let mortgage guide covers how the lending itself works.
Written by Jake Stott, Knox Mortgages. Published 2 September 2026. Last reviewed 2 September 2026.
What are buy-to-let mortgage rates right now?
As of 2 September 2026, average buy-to-let fixed rates sit between roughly 4.9% and 5.7% depending on loan to value and term, while the sharpest best-buy products start below 3.5% once you accept a large percentage-based fee. The Bank of England held Bank Rate at 3.75% on 30 July 2026 by a 6 to 3 majority, the fifth consecutive hold, with the next decision due 17 September 2026.
Moneyfacts recorded these market averages on 1 August 2026 across roughly 5,100 buy-to-let products:
| Product | 60% LTV | 75% LTV |
|---|---|---|
| 2 year fixed (market average) | 4.91% | 5.27% |
| 5 year fixed (market average) | 4.89% | 5.66% |
| Best-buy 2 year fixed | from around 3.1% with a large percentage fee | from around 3.1% with a large percentage fee |
| Best-buy 5 year fixed | from around 4.2% | from around 4.5% |
| Best-buy tracker | from around 4.0% | from around 4.0% |
For context, UK Finance put the average rate across all new buy-to-let loans at 4.71% in Q1 2026, 29 basis points lower than the same quarter a year earlier. Rates have drifted down, not collapsed.
Why is the lowest buy-to-let rate rarely the cheapest deal?
Because buy-to-let product fees are frequently charged as a percentage of the loan, not a flat amount, and they routinely reach 3%, 5% or 7%. A sub-3.5% headline rate is usually bought with a five-figure fee. The comparison that matters is total cost over the fixed term, not the rate on the poster.
Lenders typically offer the same product at several fee tiers: 0%, 2%, 3.5%, 5% and 7%. Flat fees, where they exist, run from about £999 to £3,999. On 2 September 2026 the leading two year fixed buy-to-let rate on the open market was 3.09% at 75% loan to value, carrying total fees above £13,000.
Worked example: £200,000 loan over a two year fix
| Cost over 2 years | Option A: 3.09% with a 5% fee | Option B: 4.60% with a £999 fee |
|---|---|---|
| Product fee | £10,000 | £999 |
| Monthly interest-only payment | £515.00 | £766.67 |
| Interest paid over 24 months | £12,360 | £18,400 |
| Total cost | £22,360 | £19,399 |
Option B is £2,961 cheaper despite a headline rate 1.51 percentage points higher. The percentage fee only wins on larger loans held for longer, and if you add the fee to the loan you pay interest on it for the whole term and carry it into your next remortgage. Run the numbers on our buy-to-let mortgage calculator before you commit to any headline rate.
How do lenders decide what buy-to-let rate you get?
Five variables set your rate, and only one of them is your credit profile. Buy-to-let pricing is driven by the asset and the structure far more than by you personally.
- Loan to value. The single biggest lever. Most lenders cap at 75%, a minority go to 80%, and 85% exists but is expensive and thin on choice. Dropping from 80% to 75% often saves more than shopping around does.
- Product term. Two year, five year and tracker products price differently, and the term also changes how much you can borrow.
- Property type. Standard single lets are cheapest. HMOs, multi-unit blocks, flats above commercial premises and holiday lets all carry a premium.
- Ownership structure. Personal name or limited company, and whether the company is a clean special purpose vehicle.
- Applicant profile. Portfolio size, first-time landlord status, expat status, self-employed income and adverse credit narrow the lender panel, which is what actually raises the rate.
Why do five year fixed buy-to-let rates let you borrow more?
Because lenders stress-test five year fixes at a much lower notional rate than two year fixes. On a five year fix, most lenders assess affordability at the product pay rate or a floor of around 5.5%. On a two year fix they assess at a stressed rate of 6.5% to 8.15%. That difference typically increases borrowing capacity by 25% to 35%.
The test itself is the interest cover ratio, or ICR: the rent must cover the stressed mortgage interest by a set multiple. The framework comes from the Prudential Regulation Authority’s SS13/16, updated by PS1/26 in January 2026 and effective from January 2027.
| Borrower type | ICR required | Typical stress rate applied |
|---|---|---|
| Basic rate taxpayer, personal name | 125% | 5.5% floor on 5 year fixes |
| Higher rate taxpayer, personal name | 145% | 5.5% floor on 5 year fixes |
| Additional rate taxpayer, personal name | up to 170% | 5.5% floor on 5 year fixes |
| Limited company or SPV | 125% | 5.5% floor on 5 year fixes |
| Any borrower, 2 year fix | as above | 6.5% to 8.15% |
| Any borrower, tracker | as above | pay rate plus 2%, minimum 5.5% |
Worked example: what the stress rate does to your loan size
Take a higher rate taxpayer buying in personal name, with achievable rent of £1,400 per month and a 145% ICR requirement.
- Five year fix, stressed at 5.5%. Maximum monthly interest is £1,400 divided by 1.45, so £965.52. Annualised that is £11,586, which at 5.5% supports a loan of £210,658.
- Two year fix, stressed at 7.5%. The same £11,586 of annual interest at 7.5% supports a loan of £154,483.
The five year fix allows £56,175 more borrowing on identical rent, roughly 36% more. That is why a landlord who is short on affordability should look at term before looking at rate. Our guide to buy-to-let mortgage affordability covers the full calculation, and long-term fixed rate mortgages explains where longer fixes make sense.
Are limited company buy-to-let rates higher than personal name rates?
Barely, and at most specialist lenders no longer at all. The rate penalty for incorporating has largely disappeared: many lenders now offer identical rates, fees and terms to personal and limited company borrowers, and where a gap remains it averages around 0.37 percentage points. On HMOs the limited company premium is wider, typically 0.2% to 0.5%.
The structure decision should be driven by tax and long-term plans, not by a rate difference this small. A clean special purpose vehicle with the right SIC codes is treated better than a trading company with mixed activity. Read more on limited company buy-to-let mortgages and SPV mortgages before you incorporate. We advise on the mortgage; take the tax position from an accountant.
What rates do HMOs and specialist properties attract?
HMO mortgage rates ran from 4.59% to 7.15% on five year fixes in August 2026, with the sharpest personal-name pricing from around 4.79% at 75% loan to value on a five to six bed property. The step up from a standard limited company buy-to-let to a small HMO adds roughly 0.53 percentage points.
| Property type | Typical rate position | Usual maximum LTV |
|---|---|---|
| Standard single let | Baseline | 75%, some to 80% |
| Limited company single let | Baseline to +0.37% | 75% |
| Small HMO, up to 6 beds | +0.5% to +1.0% | 75% |
| Large HMO or multi-unit block | +1.0% and above | 70% to 75% |
| Holiday let or short-term let | +0.5% to +1.5% | 70% to 75% |
If you are buying at auction or refinancing a refurbishment, the route to a long-term rate matters as much as the rate itself. See buy, refurbish, refinance, bridge to let and day one remortgage.
Should you fix for two or five years in 2026?
With Bank Rate held at 3.75% and three MPC members voting for an increase in July, the market is not pricing a clear downward path. A two year fix is a bet that rates fall enough to offset another set of fees in 2028. A five year fix buys certainty and materially more borrowing capacity.
The honest answer depends on your plan for the property, not on a rate forecast. If you intend to sell or restructure inside three years, the early repayment charge on a five year product will cost you more than the rate saves. If you are holding, the five year fix usually wins on both cost and affordability. Our view on whether to fix sets out the trade-off in full.
How to cut what your buy-to-let mortgage actually costs
- Compare total cost over the fixed term, fee included, never the headline rate alone.
- Check whether adding £200 to £5,000 of deposit tips you into a lower LTV band. It frequently does.
- Pay the product fee up front rather than adding it to the loan if you can afford to.
- Model the five year fix even if you want two years, because the borrowing capacity difference can change what you can buy.
- Start the remortgage six months before your fixed rate ends so you can secure a rate and switch it if pricing improves. See what happens when your fixed rate ends and product transfer versus remortgage.
- Use a whole-of-market broker. Large parts of the buy-to-let market, including most limited company and HMO lending, are intermediary only and are not available direct. That is the practical case for a broker over a bank.
Frequently asked questions
What is a good buy-to-let mortgage rate in 2026?
Anything at or below the market average of roughly 4.9% at 60% loan to value, or 5.3% at 75%, on a sensible fee is a competitive deal as of September 2026. Sub-3.5% headline rates exist but almost always carry percentage fees of 5% or more, which usually makes them more expensive overall on loans under about £400,000.
Why are buy-to-let rates higher than residential rates?
Because lenders treat let property as higher risk. The income servicing the debt comes from a tenant rather than the borrower, void periods interrupt it, and buy-to-let lending sits outside most FCA regulation, so pricing carries a risk premium. The gap is typically 0.5 to 1.5 percentage points over an equivalent residential product.
How much deposit do I need for a buy-to-let mortgage?
25% is the working minimum for competitive pricing. Most lenders cap lending at 75% loan to value, a small number reach 80%, and 85% products exist but are expensive with very limited choice. Larger deposits of 35% to 40% unlock the sharpest rates and the widest lender panel.
Can I get a buy-to-let mortgage on interest only?
Yes. Interest only is the standard for buy-to-let and the majority of landlord borrowing is arranged that way. It keeps monthly cost down and improves cash flow, but the full capital balance is due at the end of the term, so you need a credible repayment strategy, usually sale of the property or refinance.
Does my personal income affect my buy-to-let rate?
Rarely the rate, often the eligibility. Most lenders require a minimum personal income of £25,000, and some have no minimum at all. Your tax band matters more than your salary, because higher rate taxpayers face a 145% interest cover ratio rather than 125%, which reduces how much they can borrow on the same rent.
Are limited company buy-to-let rates worth the extra cost?
The rate difference is now around 0.37 percentage points or less, and at many specialist lenders it is zero. That is small enough that the decision should rest on tax treatment, not pricing. Incorporating suits higher rate taxpayers building a portfolio and rarely suits a single property held by a basic rate taxpayer.
Can I get a buy-to-let mortgage if I live abroad?
Yes, through expat buy-to-let lenders, though the panel is narrower and rates typically sit 0.5 to 1.0 percentage points above domestic equivalents. Lenders assess country of residence, currency of income and whether you already own UK property. See our expat buy-to-let mortgage guide.
How often do buy-to-let mortgage rates change?
Daily. Lenders reprice in response to swap rates rather than Bank Rate directly, and a product can be withdrawn with as little as a few hours notice. Any rate you see published, including the figures on this page, is a snapshot. Always confirm live pricing before making a decision.
Speak to a Mortgage Adviser
If you have questions or want to discuss your options, book a free discovery call below.
Your home may be repossessed if you don’t keep up repayments on your mortgage.
Knox Mortgages is a trading style of Fort Advice Bureau which is regulated and authorised by the FCA to conduct Mortgage and Protection business, FRN: 972730
Why Knox Mortgages
- Raising The standards of financial advice
- Making financial advice accessible to all
- Trusted & stress-free financial advice
- Friendly, personable advisors