Payment Terms for Repair Shops: Pro-Forma, Credit and Cash Flow

Payment terms are usually discussed as a credit question, and they are really a cash-flow question. The terms decide how long the shop’s money is tied up in parts before a customer pays for the repair, and that period is the difference between a comfortable month and a tight one.

There are three common routes with a UK parts supplier: pay before dispatch, pay on account, or a mixture. Each has a cost, and only one of them is visible on the invoice.

What are payment terms in parts buying?

The agreed timing and method of paying for an order.

Common forms are pro-forma, where the shop pays before the goods are released; payment on dispatch or on invoice; and account terms such as 30 days from invoice. Card payment is a method rather than a term, but it has the same cash-flow effect as pro-forma.

The term matters because parts are bought before the repair is paid for. A shop that pays on order and is paid by the customer on collection is funding the part for the length of the repair, and that gap is what working capital has to cover.

What is pro-forma and when does it suit a shop?

Paying before dispatch, with no credit exposure.

Pro-forma suits a new account, a first order with a supplier, or a shop that does not want a credit relationship. It is simple and it removes the risk of an unpaid invoice, which is why many suppliers offer it as the default for new trade customers.

Its cost is tied-up cash. A shop that pays for every order up front is effectively funding its whole parts pipeline, and the faster it grows the more cash that requires. The trade-off is acceptable when orders are small and predictable, and less so when a busy month arrives.

Pro-forma also has a practical advantage on a first order: it removes the need for a credit check, so the parts can ship the same day. A shop that needs a part urgently and has no account yet is usually better served by paying up front than by waiting for a limit to be approved.

What does 30-day credit actually cost?

Nothing on the invoice, and something in the relationship.

Credit terms rarely carry an explicit interest charge, so the cost appears elsewhere: in the discipline required to use them, in the risk of building an order book the shop cannot settle, and occasionally in a higher price than the pro-forma rate.

The real benefit is timing. Thirty days lets a shop buy stock for jobs that will be paid for within the month, so the customer’s money funds the parts. Used that way, credit is a working-capital tool. Used to buy depth the shop cannot turn over, it becomes a slow-moving liability with a due date.

There is an administrative cost as well. An account needs reconciling, invoices need matching and somebody has to notice when a credit has not landed. A shop without that routine is better on card payment, because the errors compound quietly until the statement stops making sense.

How do you ask for credit terms?

With a short, complete application and a trading history.

Suppliers usually ask for the company name and number, the registered address, a contact, and a reference or two. A shop that has been trading for a year with clean card payments has a stronger application than one asking on its first order.

Ask for a specific limit rather than “credit terms”. A supplier can assess a £2,000 limit against a known order pattern; an open request has nothing to measure. It is also easier to increase a limit that has been used and settled than to obtain one from a standing start.

The timing of the request matters as much as the content. Asking after six months of clean orders gives the supplier something to assess; asking in the middle of a dispute gives them a reason to decline.

What should a credit application contain?

The legal entity, the trading address and who pays.

Those three fields prevent most of the friction later. The legal entity decides who is liable, the trading address decides where goods go and where the invoice is sent, and the named payer decides who the supplier chases if an invoice is missed.

Add the expected monthly spend and the lines the shop buys most. That information lets the supplier set a limit that matches the account rather than a generic figure, and it starts the relationship with a realistic picture of the business.

How do customer deposits change the picture?

They move part of the funding back to the customer.

A deposit taken when a high-value repair is booked reduces the amount the shop has to fund before the part arrives. On a screen assembly or a MacBook panel, that can be the difference between paying for the part from the account and waiting for the customer’s money.

The deposit also filters out jobs that were never going to proceed. A customer who will not pay a deposit for an expensive part is often a customer who will not collect the repair, and the policy that covers this is set out in taking deposits on high-value repairs.

What happens when a payment is late?

Credit stops, and the relationship changes.

A missed invoice usually freezes the account until it is settled, which means the next urgent part cannot be ordered on terms. That is the practical cost of late payment: not the interest, but the loss of the facility at the moment it is most needed.

The way to avoid it is to pay early rather than on the last day. A shop that settles on day twenty has ten days of buffer before the due date, and a supplier who sees that pattern is more willing to raise a limit when the shop asks.

It is worth telling the supplier before the due date rather than after it. A shop that calls ahead and agrees a date usually keeps the facility; one that goes quiet finds the account frozen and the relationship harder to rebuild.

How do you reconcile a supplier statement?

Match invoices, credits and payments in one place.

A monthly statement should show every invoice, every credit and every payment for the period, with a running balance. Reconciling it means checking that each credit for a return has actually landed, because a missing credit is common and easy to overlook.

That routine is part of the wider bookkeeping process described in invoices, VAT and records for a repair shop. A statement that is checked monthly is also the earliest warning that a line is being over-ordered.

Do it before paying, not after. A statement checked against the shop’s own purchase records catches a duplicate invoice or a missing credit while there is still something to correct, rather than a month later when nobody remembers the order.

When should a shop stay on card payment?

When the volume does not justify the admin.

A shop ordering once a month on a small basket gains little from credit and takes on a monthly reconciliation. Card payment at the point of order is simpler, and the supplier’s price is usually the same or close to it at that volume.

The calculation changes when the order pattern becomes regular. At that point the cash-flow benefit of paying thirty days later is real, and the account starts to earn its admin. The comparison between the two routes is set out in trade account versus guest checkout.

What should a shop never do with credit?

Use it to buy stock it has not sold.

Credit is easiest to use at exactly the moment it is most dangerous: a quiet month, a supplier promotion, or a bulk deal that looks too good to skip. Stock bought that way sits on the shelf while the invoice becomes due.

The test is whether the parts are already committed to jobs or to a proven reorder pattern. If they are, credit is doing its job. If they are a guess about future demand, the guess is being funded by someone else’s money and the due date will arrive regardless of whether the guess was right.

The third mistake is treating a limit as a target. A supplier sets a limit at the level they are willing to risk, not at the level the shop should spend, and the two numbers are rarely the same.

What is the one rule for payment terms?

Match the term to the turn, not to the ambition.

A shop that turns its stock in three weeks can use thirty-day terms comfortably. One that turns it in three months cannot, whatever the limit says. The term should follow the actual stock cycle, which is the discipline behind planning stock by the numbers.

Around it sit the ordinary disciplines: ask for a specific limit, reconcile the statement monthly, pay before the due date and take deposits on high-value jobs. Company records and filing obligations are set out at running a limited company, VAT registration is explained at register for VAT, customer data on the account is handled under ICO guidance for organisations, retail customers keep their rights under the Consumer Rights Act 2015, and the storage expectations for a parts bench are covered by risk assessment at work.