Matched Betting Calculator

What is Matched Betting?

Use free bets from bookmakers to guarantee profit. Bet on the bookmaker, lay (bet against) on the exchange. You profit regardless of the outcome. This is 100% legal and tax-free in the UK.

Bet Mode

Back Stake (£)

Back Odds (Decimal)

Lay Odds (Decimal)

Exchange Commission (%)

Betfair: 2%, Smarkets: 2%, Matchbook: varies

Advanced Options (Optional)

Underlay (weight profit toward back bet winning)Overlay (weight profit toward lay bet winning)