Buy-to-Let Yield & Cash Flow Calculator

Work out gross yield, net yield and monthly cash flow after mortgage, management fee, maintenance and voids — before tax.

£0
Monthly cash flow (before tax)
Gross yield0%
Net yield (before finance costs)0%
Effective annual rent (after voids)£0
Annual management fee£0
Annual maintenance£0
Annual mortgage cost (interest-only)£0
Net annual cash flow£0

Buy-to-let mortgages are usually arranged on an interest-only basis, so the monthly mortgage cost here is interest only, not a repayment figure — you're not paying down the capital, which matters when you eventually sell or remortgage. Net yield is shown before finance costs, meaning it strips out management fees, maintenance and voids but not the mortgage itself, which is the standard way lenders and analysts quote it. This is a pre-tax view of cash flow, so see what Section 24 does to that number before you treat it as what actually lands in your account.

This calculator is illustrative only and does not constitute financial advice. Always confirm figures with a lender, broker or HMRC before making a decision.