B2B Payment Processing: Get Paid Faster

Jamal Brooks·4 min read
Business invoice dashboard showing payment statuses and cash flow

Key Takeaways

  • Days sales outstanding is the number that determines whether a profitable B2B business runs out of cash
  • Accepting cards on invoices costs more and gets you paid faster, and that trade is frequently worth making
  • Invoicing immediately, correctly and to accounts payable rather than your contact fixes most payment delays
  • Delivering before payment means extending credit whether you intended to or not, so stop work on significantly overdue accounts
  • A weekly fifteen minute receivables review is the highest-return recurring task in a B2B business

B2B payments break most of the assumptions built into consumer payment systems. The buyer is not the payer, the price is often negotiated, the payment arrives weeks after the invoice, and nobody is entering a card at a checkout. Applying a consumer payments mindset to B2B produces a system that is technically working and commercially failing.

The commercial failure has a name: days sales outstanding, the average time between invoicing and getting paid. It is the number that determines whether a profitable B2B business runs out of cash.

Why B2B is structurally different

  • Payment terms are the norm. Net 30, net 60 and worse. You deliver, then wait.

  • The person who decides is not the person who pays. Approval and payment are separate processes in separate systems, run by separate people.

  • Higher values, lower volumes. Card fees on a large invoice are painful, which is why bank transfer dominates.

  • Purchase orders and matching. Many buyers will not pay an invoice that does not reference a PO number, and will not tell you that until it is overdue.

  • Procurement processes. Vendor onboarding, forms, compliance documents. Real friction that delays first payment by weeks.


The rails, and when each fits

MethodCostSpeedBest for
ACH or SEPA direct debitVery low1 to 3 daysRecurring, established relationships
Bank transferLow, higher internationally1 to 5 daysLarge one-off invoices
CardHighestImmediateSmaller invoices, faster payment
Virtual cardsHigherImmediateBuyers whose procurement prefers them
ChequeLow, very slowWeeksSome markets and sectors persist

The practical point: accepting cards on B2B invoices costs more and gets you paid faster. For many businesses that trade is worth making, because the cost of capital tied up in receivables exceeds the processing fee. Offering both, and letting the buyer choose, generally beats picking one.

Reducing days sales outstanding

This is where the money is, and most of the levers are process rather than technology.

Invoice immediately. The single largest and least glamorous factor. Invoices sent at month end for work completed at the start of the month have already lost weeks.

Invoice correctly the first time. A wrong PO number, a missing reference or the wrong entity name sends the invoice back to the start of the queue, and frequently nobody tells you. Confirm the required fields during onboarding rather than discovering them from an aged debtor report.

Send to the right place. Accounts payable, not your contact. Your contact forwards it eventually, and eventually is the problem.

Make paying easy. A payment link in the invoice removes friction. Requiring someone to log into a portal adds it.

Automate reminders. Before due, on due, and after. Consistent and unemotional, so nobody has to decide to chase.

Deposits and milestones. For project work, a deposit upfront and staged payments transform cash flow. Buyers expect it and rarely object.

Early payment discounts. A small discount for payment within ten days often costs less than the financing it replaces.

Subscriptions and recurring B2B billing

Recurring B2B revenue has its own problems that consumer subscription tooling handles badly:

  • Usage-based components that vary each period.

  • Annual contracts billed monthly, which is a commitment rather than a subscription.

  • Mid-term changes, seat additions and plan changes needing proration.

  • Purchase orders that expire and must be renewed before the next invoice can be paid.

  • Manual approval on each invoice at larger customers, regardless of what you agreed.


Direct debit is the strongest option here where the relationship supports it, because it removes the approval step from every cycle. The subscription billing best practices guide covers the recovery mechanics that apply on top.

Credit risk, which consumer businesses do not have

When you deliver before payment, you are extending credit whether you intended to or not.

Reasonable controls:

  • Check new customers before extending terms, particularly for large first orders.

  • Set credit limits and enforce them.

  • Require payment upfront for the first engagement with a new customer, then extend terms once there is a payment history.

  • Stop work on significantly overdue accounts. Continuing to deliver to a non-payer converts a collections problem into a larger one.


That last point is the one small businesses most often get wrong, usually out of reluctance to damage a relationship that is already damaged.

International B2B

Cross-border adds tax handling, currency risk and slower rails.

  • Confirm tax treatment. B2B cross-border sales frequently shift the tax obligation to the buyer, but only with a valid registration number, which must be validated rather than assumed.

  • Decide who bears currency risk. Invoicing in your currency pushes it to them; invoicing in theirs pushes it to you and usually wins more business.

  • Expect slower payment, because international transfers add days and foreign procurement adds more.


The cross-border payments guide covers the rails and the costs in detail.

Getting set up

For a small B2B business, a workable stack is:

1. Invoicing software that supports PO references, payment terms, automated reminders and a payment link.
2. Bank transfer and direct debit as the default rails.
3. Card acceptance as an option, priced into your rates or offered for faster payment.
4. A written credit policy, even a short one, applied consistently.
5. A weekly receivables review, which takes fifteen minutes and is the highest-return recurring task in a B2B business.

The measure that matters

Track days sales outstanding monthly. It is the single number that tells you whether your payment process is working, and it moves in response to process changes far more than most businesses expect.

A business with healthy profit and rising DSO is heading toward a cash problem regardless of how the profit and loss looks, and it usually shows up in that number months before it shows up in the bank account.

paymentsb2bbusinessinvoicingcash-flow

Written by Jamal Brooks

Jamal is a product engineer at Affiliateo who writes about payments, integrations, and technical best practices.

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