Business buy now, pay later: how B2B BNPL works and when to spread a cost

This guide is for owners and finance leads who have seen "pay in 30 days" or "split into instalments" at a supplier's checkout and want to know what they are agreeing to, and for suppliers wondering whether to offer it. Smart Funding Solutions is a broker: we do not provide checkout credit, but we arrange the facilities businesses use to spread larger costs, from around £10,000 to £500,000+, with larger facilities available in suitable cases. More explainers sit in our business finance guides.

01What B2B buy now, pay later actually is

Consumer BNPL splits a shopping basket into a few payments. The business version grew out of trade credit instead. A wholesaler, parts supplier or software marketplace has always offered account customers 30 or 60 days to pay, but that means the supplier carries the credit risk, runs credit checks and chases late payers. B2B BNPL hands that job to a finance provider built into the checkout or invoice.

At the point of sale, the provider runs an automated check on the buying business, usually using Companies House data, credit reference files and sometimes open banking. If it approves, the buyer gets deferred terms (commonly 30, 60 or 90 days) or a short instalment plan. The supplier is paid by the provider, less a fee, within a few days, and the provider collects from the buyer. In most schemes the supplier does not carry the loss if the buyer fails to pay, which is what separates it from ordinary invoice finance, where the supplier often remains liable for bad debts.

02Who pays for it, and how

The economics are easy to misread because the buyer often sees no charge at all.

• Interest-free deferral: the supplier pays the provider a merchant fee, a percentage of each sale. The buyer pays nothing if it settles on time. Suppliers build that fee into prices sooner or later, so "free" terms are rarely free across a year of purchases.
• Extended terms or instalments: longer plans usually carry a buyer fee, either a flat charge per plan or a monthly percentage of the balance. Because the term is short, a fee that looks small can be expensive once annualised.
• Late fees: missed collections trigger fees and, with some providers, suspension of the account across every supplier that uses the same provider.

Before signing up, work out the cost of one plan as if it ran for a full year and compare it with what you already pay for your overdraft or credit card. Our guide to how business borrowing is priced explains how to compare a flat fee with interest on a reducing balance.

03Where it helps and where it does not

B2B BNPL works best for small, repeat trade purchases that turn into sales quickly: a trades business buying materials for a job that will be invoiced within the month, a retailer restocking a fast-selling line, a café reordering from a catering wholesaler. The deferral lines up the payment with the income the purchase creates.

It works badly when the thing being bought lasts longer than the plan. Spreading a £40,000 machine or a year's software licence over 90 days does not ease cash flow; it just moves a large payment a few weeks down the road. It is also a poor tool for general cash shortages, because each plan is tied to one supplier and one basket.

Better ways to spread larger costs

04What lenders check about your BNPL plans

Most B2B BNPL does not appear as a loan on your filed accounts; it sits within trade creditors. That makes it tempting to treat as off the books. It is not invisible, though. Lenders assessing a later application read your bank statements or open banking feed, and a string of collections from BNPL providers tells them a real story.

• Number of providers: collections to several BNPL and short-term finance providers at once read as stacking, a common reason for decline.
• Reliance for everyday stock: if most routine purchases go through deferral plans, underwriters conclude that working capital is tighter than the profit figures suggest.
• Returned or late collections: a bounced direct debit to a BNPL provider counts the same as one to any other creditor.
• Creditor days: heavy deferral pushes up trade creditors relative to sales, which lenders check when working out affordability.
• Personal liability: some providers ask a director or sole trader to guarantee the account, which adds to the personal commitments a later lender will ask about.

None of this means you should avoid BNPL. It means you should use it deliberately, for purchases that pay for themselves within the plan, and be ready to explain it. Our guide to how lenders assess applications covers the bank-statement review in more detail.

05For suppliers: should you offer it to your customers?

If you sell to other businesses, offering BNPL at checkout can raise order values and let you stop extending your own credit to small accounts. You are paid quickly and, in most schemes, the provider absorbs the bad debt. The trade-offs are the merchant fee on every financed sale, less control over which customers are approved, and a dependency on one provider's appetite: if it tightens its criteria, some of your customers lose their terms overnight.

Compare that with funding your own debtor book. If your customers are mostly established companies on 30 to 60-day terms, selective invoice finance lets you release cash from chosen invoices while keeping the customer relationship. Whichever route you take, you still have the statutory right to charge interest on late commercial payments if an account customer pays late.

06Regulation and your protections

Credit provided to a limited company is generally outside the consumer credit rules, so a limited company using B2B BNPL has only the protection written into the provider's terms. Read what happens on a disputed or returned order: some plans keep collecting even while a supplier dispute is open. Borrowing of £25,000 or less by sole traders and small partnerships can be regulated consumer credit, which brings additional protections, so check whether the provider has treated your plan that way.

07Risks and trade-offs

• Hidden cost: merchant fees drift into prices, and buyer fees on longer plans can outweigh the cost of an ordinary facility.
• Fragmented debt: ten small plans across four providers are harder to track than one facility, and missed collections multiply quickly.
• Short horizon: 30 to 90 days rarely matches the time a business needs to recover a large cost.
• Doing nothing is an option: if you can pay on the supplier's normal terms, negotiating an early-payment discount may save more than any deferral.

The British Business Bank's overview of other forms of business finance is a useful neutral starting point for comparing short-term options.

08Documents to have ready if you consolidate

If you plan to replace several BNPL plans with one facility, a lender will want to see the full picture before it offers terms:

09How we can help

If BNPL plans have become the way your business funds everyday stock, or you need to spread a cost too large for a checkout plan, we can look at a single facility that replaces them.

1. We look at what you are spreading, how long it takes to earn back and what plans are already running.
2. We match that to the right structure, such as revolving credit, asset finance or a seasonal facility.
3. We approach lenders on our panel whose criteria fit your trading profile.
4. You compare the offers on total cost; lenders make the decision and you decide whether to proceed.

It is free to enquire; any broker fee is disclosed separately before you proceed. See our business support services for equipment and other practical help.