Today’s best buy-to-let rates, for purchase and remortgage.
BTL purchase and remortgage best-buys side by side — fixed and tracker, 2 to 10 year terms, built from lender data we ingest and quality-check every night. Monthly payments quoted interest-only on £200,000 — the market convention.
Purchase best rates
Top BTL deals for a new rental property purchase. Monthly shown interest-only.
| Lender | Initial rate | Monthly | Fixed until | Then | Product fee | |
|---|---|---|---|---|---|---|
| 1 N NatWest GroupBest rate | 3.94% | £657on £200,000 int-only | 2 yrs | 6.74% | £3,999Free valuation | See full deal → |
| 2 H HSBC Bank | 4.34% | £723on £200,000 int-only | Oct 2028 | 7.25% | £3,999Free valuation | See full deal → |
| 3 S Santander UK | 4.45% | £742on £200,000 int-only | 2 yrs | — | £1,749Free valuation | See full deal → |
| 4 S Santander UK | 4.92% | £820on £200,000 int-only | Oct 2028 | 6.50% | None | See full deal → |
| 5 H HSBC Bank | 4.94% | £823on £200,000 int-only | Oct 2028 | 7.25% | NoneFree valuation | 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.
Deep dive: best purchase rates by term →
Remortgage best rates
Refinance your rental at today's lowest BTL rates. Monthly shown interest-only.
| Lender | Initial rate | Monthly | Fixed until | Then | Product fee | |
|---|---|---|---|---|---|---|
| 1 H HSBC BankBest rate | 4.33% | £722on £200,000 int-only | Oct 2028 | 7.25% | £3,999Free legalsFree valuation | See full deal → |
| 2 N NatWest Group | 4.34% | £723on £200,000 int-only | 2 yrs | 6.74% | £3,499Free legalsFree valuation | See full deal → |
| 3 S Santander UK | 4.52% | £753on £200,000 int-only | Oct 2028 | 6.50% | £1,749 | See full deal → |
| 4 S Santander UK | 4.92% | £820on £200,000 int-only | 2 yrs | 6.50% | None | See full deal → |
| 5 H HSBC Bank | 4.94% | £823on £200,000 int-only | Oct 2028 | 7.25% | NoneFree valuation | 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.
Deep dive: best remortgage rates by term →
Buy-to-let mortgages are a different product category from residential, priced and assessed on different rules. Lenders care first about whether the rent covers the mortgage — the interest cover ratio (ICR) — and typically require it to do so at a stressed rate, not just the deal rate. Fees lean heavier too: percentage-based arrangement fees of 2–3% of the loan are common rather than the flat fees typical in residential. And almost all BTL borrowing is structured interest-only, keeping monthly costs low and preserving cashflow. The tables above reflect all of this: monthly figures are interest-only throughout.
The two boards — purchase and remortgage — draw from the same lender universe but track different products. Remortgage ranges often include incentives such as free valuation or cashback; purchase ranges may carry tighter ICR hurdles on certain terms. LTV works slightly differently too: most BTL lending concentrates at 75% LTV and below, with the sharpest pricing at 60%, and a minority of lenders stretching to 80%. Use the LTV selector to price your own position, then open the purpose or term page that matches your situation for a deeper comparison.
We ingest the data ourselves
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.
Refreshed every night
Every product, every lender, re-ranked nightly. No manually maintained best-buy lists, no stale screenshots of last week's market.
Mortgages only
We're the UK's only mortgage-only comparison site. No credit cards, no car insurance — just every flavour of mortgage, done properly.
Frequently asked questions
How these tables work, and how to choose between the deals on them.