Quick Answer: Best Portfolio Landlord Remortgage in 2026
Portfolio landlords (4+ mortgaged BTLs) need specialist lenders — Paragon, BM Solutions, The Mortgage Works, Kent Reliance, Foundation, Shawbrook and Precise — that assess the whole portfolio's gearing and rental cover, not just one property. Rates are similar to standard BTL (around 4.9%-5.6% at 75% LTV) but underwriting is heavier: expect a portfolio schedule, business plan and overall LTV/ICR checks. A portfolio-experienced broker is essential to manage the paperwork and place the case.
Rates last reviewed June 2026. Figures shown are indicative market ranges to help you compare — not live quotes or personalised offers. Mortgage rates change daily and depend on your circumstances, the lender's criteria and the Bank of England base rate. Check live rates for your profile →
How Portfolio Underwriting Works
What changes once you hit four mortgaged properties:
- Whole-portfolio assessment — lenders review every mortgaged property's value, loan, rent and ICR, calculating your aggregate LTV and rental coverage across the portfolio.
- Background portfolio tests — many lenders cap your overall portfolio LTV (often 65-75%) and require the whole portfolio's rent to cover its debt at a stress rate, not just the subject property.
- Documentation — expect to provide a portfolio schedule, business plan, cash-flow/asset-and-liability statement and sometimes a spreadsheet in the lender's format.
- Property limits — some lenders cap total properties or total lending with them; specialists are more accommodating of large portfolios.