A reserve is money you have earned that your acquirer holds back against future losses. It is not a penalty and it is not unusual, but it is a cash flow problem that arrives without warning and rarely comes with a clear explanation.
Why acquirers hold reserves
The acquirer is liable if you cannot honour a refund or a chargeback. That liability sits open for months, because a cardholder can dispute a transaction long after delivery. If you sell anything delivered in the future, an event ticket, a subscription, a made to order item, the acquirer is exposed to every prepaid order on your books.
The three shapes
| Type | How it works | Typical trigger |
|---|---|---|
| Rolling | A percentage of each day settlement is held and released after a fixed period, often five to ten percent for 180 days | New account in a higher risk category |
| Fixed or upfront | A set amount is held until the account closes | Thin credit history, or a personal guarantee declined |
| Capped | Rolling until a target balance is reached, then it stops growing | Negotiated alternative to an open ended rolling reserve |
What actually triggers one mid life
- A chargeback ratio climbing towards one percent.
- Volume well above the figure on your application. Underwriting priced you for 30,000 a month and you did 200,000.
- A change in what you sell, especially into subscriptions, future delivery or anything the acquirer treats as higher risk.
- A single very large transaction outside your normal pattern.
- A spike in refunds, which reads as delivery problems.
The second one is the most common and the most avoidable. Tell your acquirer before a big campaign, not after.
Getting out of one
Reserves are reviewed, not permanent, but nobody reviews them unless you ask. What works, in order:
- Fix the underlying number first. Bring the chargeback ratio down and keep it down for three consecutive months.
- Send a written request with evidence: monthly volume, chargeback and refund ratios, delivery times, and the changes you made.
- Ask for a specific outcome, for example a cap at a stated amount, or a reduction from ten percent to five, rather than asking for it to be lifted.
- Offer a trade: a longer contract, a personal guarantee, or a shorter funding delay in exchange for a smaller hold.
- If the answer is no, ask what conditions would change it, and put a date in the diary.
Living with one
Model it in your cash flow as a receivable, not as a loss. A ten percent rolling reserve on 100,000 a month settles into a permanent 300,000 balance at 180 days, and that balance is returned when the account closes cleanly. Knowing that number stops it from feeling like theft.
The aggregator comparison
Aggregators hold funds too, but the decision is automated and the notice is often nil. With your own merchant account you get a named underwriter, a written policy, and a path to appeal. That is the practical difference people mean when they talk about control, and it is covered further on why keep your own merchant account.