Money Back Calculator

Calculate the optimal exchange lay stake so that your final profit is balanced whether the bookmaker bet wins or loses.

Optimal lay stake

The calculator adjusts the lay stake to include the value of the refund. This balances the final result across both possible outcomes.

Refund Type

Cash Refund

The refund is treated as cash and is worth its full amount.

SNR Free Bet

The refund is valued using your expected free-bet retention percentage.

Refund Condition

Money Back if Bet Loses

The refund is included only in the losing bookmaker outcome.

Money Back Either Way

The refund value is added to both final outcomes.

Back Stake (£)

Back Odds

Lay Odds

Exchange Commission (%)

Stake Refunded (%)

Enter the back stake, back odds and lay odds to see the optimal lay stake.