What a reserve is and why it landed on you
A processor holds back a share of each sale as a buffer against chargebacks and refunds it might have to cover if you disappear. The trigger is usually a spike: a jump in volume, a run of chargebacks, a large average ticket, a category the processor considers risky, or a business that signed up in a minute with no underwriting and then grew. Square draws the most complaints for exactly that reason; Stripe, PayPal and most others can impose one too.
The terms are the thing to get in writing: the percentage, the hold period, the release schedule, and what ends it. A reserve with a stated end date is a bridge. One with no end date is a negotiation.
Bridging it
If sales are $100,000 a month and the processor holds 20 percent for 90 days, that is $60,000 of your own money sitting with them before the first release, and then a steady $20,000 a month held against $20,000 a month released. The gap is the first ninety days.
A working capital loan or a cash advance on your deposits — including the 80 percent that is still arriving — funds it in one to three business days, sized to the held amount, repaid weekly as the reserve releases. Send the processor's reserve notice with the statements; a funder reading a dated release schedule is reading a receivable. A term loan with interest that stops when you repay fits better than a fixed-factor advance here, because the release schedule will let you clear it early.
Fixing the cause
Chargebacks are the usual trigger and the usual fix. Clear billing descriptors so customers recognize the charge, refunds issued before a dispute is filed, delivery confirmation on shipped goods, and a response to every dispute with evidence. Processors review reserves; a quarter of clean chargeback ratios is what gets one reduced or lifted.
And in parallel, price a traditional merchant account with real underwriting. They take a week to set up, ask for statements and a processing history, and in return they impose surprise reserves far less often and cost less per transaction for most service businesses. The sign-up-in-a-minute processors are convenient right up to the day they hold your payroll.
Do not stack on a reserve
A reserve reduces your deposits by a fifth, and a funder sizing an advance on those deposits will size it smaller. Taking a second advance because the first was small, on a business whose cash is already being held, is how a temporary reserve becomes a permanent problem. One bridge, sized to the hold, repaid from the releases.