NatWest’s 10 August mortgage repricing cuts some buy-to-let rates — but further advances are getting pricier

NatWest will reprice mortgage products on 10 August 2026, and the crucial detail for landlords is that not every rate is falling: some buy-to-let pricing is being cut, while some additional-borrowing products are becoming more expensive.

According to reporting by Mortgage Solutions, parts of NatWest’s new-business range are being reduced by up to 0.22 percentage points, while selected further-advance products are rising by around 0.09% to 0.12%. The report highlights increases on a fee-free two-year fixed at 60% LTV and a £995-fee option. It also says NatWest is changing selected remortgage, shared-equity and buy-to-let pricing.

That mix matters more than the headline cut. A landlord refinancing a purchase or remortgage may benefit from lower pricing, while one relying on a further advance for works or expansion could find the cost of funds has worsened overnight.

The first issue is pipeline treatment. If you have a NatWest purchase, remortgage or buy-to-let case in progress, do not assume an older illustration still holds. The source summary does not set out how NatWest will treat applications already submitted, offers close to expiry or cases awaiting completion. That needs to be checked directly with NatWest or through your broker, in writing.

The second issue is affordability. In buy-to-let lending, a small rate move can be enough to change rental cover, stress-test outcomes and net cashflow, particularly on lower-yield London stock. The right response is not to focus on the headline rate but to rerun the case using the exact revised pay rate, fee and loan-to-value band.

Further advances deserve particular attention because this appears to be the less favourable side of the repricing. Many landlords use additional borrowing for EPC upgrades, major repairs, refurbishments or deposits on another purchase. An increase of 9 to 12 basis points will not kill every deal, but it can alter margins on larger balances or projects that were only just stacking up.

This is also a reminder not to treat one lender’s change as a market verdict. The same source notes that Nationwide, Barclays and Coventry have recently reduced some rates as well. If NatWest’s revised pricing no longer works for your loan purpose, fee structure or stress test, a competing lender may now be the better fit even if its headline rate looks slightly higher.

For landlords, the action list is short. Check any live NatWest case, confirm which pricing applies, and rerun affordability before paying for valuations or pushing a case to offer.

R&S can help by reviewing your NatWest buy-to-let or further-advance case against current alternatives before the 10 August repricing takes effect.