BTL Mortgage Rates in June 2026: What Landlords Need to Know

Updated: June 2026 | Reading time: ~7 minutes

Buy-to-let mortgage rates have had a turbulent few months. After drifting downward through early 2026, a spike in March and April — driven largely by uncertainty from the conflict in the Middle East — pushed rates up sharply before they started to ease again in May and June.

If your fixed rate is expiring soon, or you're looking to add to your portfolio, here's a clear picture of where rates stand right now and what to do about it.

Where Do BTL Rates Stand in June 2026?

Rates rose steeply between March and April 2026 before pulling back slightly. Here's the current landscape based on market data as of early June 2026:

Note: Rates move daily and depend heavily on your LTV, property type, and whether you're buying personally or through a limited company. These figures give you a market benchmark — use a whole-of-market broker to find what's actually available to you.

The gap between average rates and the best available is significant. Landlords accepting their lender's renewal offer without shopping around are likely leaving money on the table.

Why Did Rates Spike in March–April 2026?

At the start of 2026, forecasters expected BTL rates to continue their slow downward path. That changed quickly.

The conflict in the Middle East caused oil and gas price uncertainty, which pushed inflation risk higher and prompted lenders to price in the possibility of Bank of England base rate increases. In March alone, the average two-year fixed BTL rate jumped from around 4.66% to 5.44%, while five-year fixes rose from approximately 5.05% to 5.75%.

Since then, markets have partially calmed. The Bank of England base rate currently sits at 3.75%, and the next Monetary Policy Committee (MPC) decision is due on 18 June 2026. Most analysts now expect the base rate to hold or see only one modest increase in 2026 — but the picture remains uncertain.

2-Year vs 5-Year Fixed: Which Makes More Sense Right Now?

This is the central question for most landlords coming up for renewal.

The case for a 5-year fix

• More rate certainty in an unpredictable environment
• Protects against further spikes if Middle East tensions escalate
• Lower monthly stress if you're running tight yields
• Paragon's new 5-year products come with a free mortgage valuation, reducing upfront costs

The case for a 2-year fix

• If rates do fall over the next 12–18 months, you won't be locked in at today's elevated levels
• Better flexibility if you plan to sell or remortgage before 2031
• The Mortgage Works currently offers 2-year fixes from 3.44%, which undercuts many 5-year products significantly on the headline rate

The honest answer: No one knows where rates are heading. The safest approach is to lock in a competitive deal now and review it before you're forced onto a lender's standard variable rate (SVR) — which currently averages close to 8%.

Which Lenders Are Worth Looking At Right Now?

Paragon Bank

Paragon is active in the specialist BTL space. Their recent product launches include:

• New 5-year fixed rates from 3.75% for single self-contained properties
• 4.00% for HMOs and multi-unit blocks
• All products include a free mortgage valuation
• New-build BTL offer periods extended to 6 months (up from 3), giving more time between offer and completion

Paragon tends to be the go-to for complex situations — HMOs, multi-unit, and portfolio landlords.

The Mortgage Works (TMW)

One of the largest specialist BTL lenders in the UK. Currently offering:

• 1-year fixed from 3.34%
• 2-year fixed from 3.44%
• 5-year fixed from 4.44%

TMW is typically strong for both personal and limited company BTL, and actively works with portfolio landlords (4+ properties).

Barclays

Barclays recently introduced dynamic stress testing for BTL, meaning their affordability assessment is based on your actual product rate rather than a stressed rate. In practice, this means many landlords can borrow more with Barclays than with lenders still using traditional ICR stress tests.

They've also opened portfolio landlord applications across their standard BTL purchase and remortgage range.

TSB

TSB launched portfolio BTL lending in April 2026 for landlords with up to 10 mortgaged properties. Key terms:

• Max LTV: 75%
• Min loan: £25,000 | Max loan: £1 million
• Up to 5 BTL mortgages with TSB
• Available for both purchase and remortgage

TSB recently cut 2 and 5-year BTL fixed rates at 60–80% LTV by up to 0.80%, making them more competitive than they've been for some time.

BM Solutions / NatWest

Both are solid mainstream options for straightforward applications — single property, personal name, standard tenancy. Rates are competitive at lower LTVs and criteria tend to be more accessible for first-time landlords.

How Much Can You Borrow?

BTL lending is primarily assessed on rental income, not personal earnings — though most lenders still want to see some personal income (typically around £25,000+).

The key metric is the Interest Coverage Ratio (ICR). Lenders typically require rental income to cover 125–145% of the monthly interest payment, stress-tested at a rate above your actual product rate.

Barclays' new dynamic stress testing is a notable exception — using your actual rate means the calculation is more generous than with lenders still stress-testing at 5.5% or higher.

Quick ICR illustration (traditional stress test)

Always check ICR requirements with your specific lender — they vary, particularly for HMOs, limited company applications, and portfolio cases.

When Should You Start Looking at Remortgaging?

If your fixed rate expires within the next 6 months, start now. Most lenders allow you to lock in a new deal up to 6 months before your current deal ends — so there's no advantage to waiting, and a clear risk in leaving it too late.

Landing on your lender's SVR (currently averaging close to 8%) for even a month or two while you sort a new deal is an expensive mistake on a typical BTL loan.

Landlords coming off 5-year deals taken out in 2021 have seen monthly payments rise by an average of 28.5%. If that's you, the sooner you understand your options, the better position you're in.

A Quick Checklist Before You Remortgage

• Know your current LTV — has your property value changed since you took the mortgage?
• Check whether you're buying personally or want to move to a limited company structure (note: this usually requires a full remortgage and triggers SDLT)
• Factor in product fees — a low headline rate with a high arrangement fee isn't always the cheapest deal over the fix period
• Consider whether your property type affects lender eligibility (HMO, new-build, multi-unit)
• If you have 4+ mortgaged properties, you're a portfolio landlord — not all lenders accept portfolio cases on standard products
• Check your EPC rating now — some lenders offer preferential "green" rates for EPC A/B properties

Bottom Line

June 2026 isn't the cheapest environment to be financing BTL property, but the best available rates are meaningfully lower than averages suggest. The difference between accepting a renewal offer and shopping the market can easily run to £100–200/month on a typical loan.

Use a whole-of-market broker, run the numbers with current ICR requirements, and don't leave yourself exposed on SVR while you think about it.

Related guides: How the Renters' Rights Act affects your BTL investment | Should you hold or sell your rental property in 2026? | Limited company BTL: is it still worth it?

Disclaimer: This article is for informational purposes only and does not constitute financial advice. Mortgage rates change frequently — always verify current rates with lenders or a qualified mortgage broker before making decisions. Your property may be repossessed if you do not keep up repayments on your mortgage.