Rent affordability calculator
Check whether a tenant’s income supports the rent you are underwriting.
Tenant details
Before tax (gross annual)
Loans, credit cards, existing subscriptions
Uses the 30/40/50% rule. Safe = 30% of gross monthly pay minus existing commitments.
Monthly rent budget
Safe
£625
30% rule
Stretch
£1,000
40% rule
Risky
£1,375
50% rule
Budget confidence range
Safe £625Max £1,375
Estimates only, not financial advice. Lender and landlord criteria vary.