Most "how much can I borrow" buy-to-let (BTL) calculators differ significantly from residential ones because they prioritize over personal salary. 🛠️ How BTL Calculators Work

Calculators often "stress test" your application by assuming a higher interest rate (e.g., 5% to 5.5% ) to ensure you can still pay if rates rise.

Most BTL lenders require a larger deposit than residential loans, usually capping at 75% to 80% LTV. Top Calculator Options (April 2026)

Several platforms offer specialized tools for different landlord needs: