Net payout is what actually lands: the credited amount left once processing fees, refunds, chargebacks, commission and any withheld sums have been taken out of a batch of settled transactions. It is the number finance can spend, as opposed to the number customers paid.
The deduction stack, in the order it is applied
Start from the gross value of transactions settled in the period. Acquiring and scheme fees come off first, because they attach to individual transactions. Then refunds and chargebacks raised during the same window, regardless of when the original sale happened. Then platform or marketplace commission. Last, anything routed into a rolling reserve.
Order matters when a percentage is charged on a base that earlier deductions have already changed, so a statement that shows only a total deduction line cannot be checked.
The arithmetic on a 50,000 week
A seller settles 50,000 in card sales over one week. Processing costs 1,100. Refunds processed that week total 2,400. The marketplace takes ten percent commission, or 5,000. Two percent of gross, 1,000, goes into reserve. The bank credit is 40,500 — an effective deduction of nineteen percent against a headline commission of ten.
Why two identical sales weeks pay differently
Refund timing is the main cause of variance. Refunds hit the payout in which they are processed, not the one containing the original sale, so a heavy returns week shrinks a credit that looked strong on sales volume. Reserves do the reverse: they build quietly for months, then release, and a payout jumps with no change in trading.
Negative balances and how they are recovered
When deductions exceed new sales, the net figure goes below zero. No transfer is sent, a debit balance carries into the next period, and if trading has stopped the provider will direct debit the merchant's account or draw on reserve. Seasonal businesses running a daily release are the usual victims, which is one reason a longer payout schedule absorbs refund shocks better than a short one.
The rate worth negotiating on
Compare platforms on effective net rate — total deductions divided by gross — rather than headline commission. Two providers quoting the same percentage can produce materially different credits once card costs, FX and holdbacks are counted.
That comparison only works if the statement reconciles gross to net line by line and names the payout cycle each deduction belongs to. Where fees are billed separately instead of deducted, the same volume appears as a gross payout and the comparison has to include the invoice.