How to manage a supplier payment run

Why a structured payment run matters

Paying supplier invoices ad hoc — whenever they arrive, or whenever a supplier chases — hands control of your cash flow to your suppliers rather than keeping it with you. A structured payment run, on a fixed day or two each week or month, batches all due payments together so you make one controlled decision about what goes out, when, and from what balance.

The benefits compound quickly. You always know when payments will go out, so your cash-flow forecast is accurate. Your bank balance reflects planned outflows rather than surprise ones. Suppliers know when to expect payment and stop chasing. And because payments are reviewed in bulk by an authorised director or finance manager before they are released, the risk of a fraudulent or duplicate invoice slipping through drops materially. The alternative — paying as chased — is more expensive to administer, more error-prone and harder to forecast.

Set up the cadence and the cut-off

Choose a payment run frequency that matches your cash flow and supplier base:

• Weekly — suits businesses with high invoice volumes, tight supplier terms, or cash flow that changes significantly week to week. Higher administrative effort but greater control.
• Fortnightly — a common middle ground for mid-sized trading businesses.
• Monthly — workable for businesses with a small, predictable supplier base and 30-day terms.

Alongside the frequency, set a cut-off: any invoice approved for payment by a fixed date (say, close of business Tuesday) is included in that week's run; anything after goes into the next. Communicate the cut-off to your team and to key suppliers so expectations are aligned and last-minute payment requests are managed. The cut-off is what makes the process predictable — without it, the run never actually closes and ad-hoc payments creep back in.

Approve invoices before the run, not during it

The payment run is not the stage at which invoices are reviewed — it is the stage at which already-approved invoices are released for payment. Build an invoice approval step into the process before invoices reach the payment queue:

1. Invoices arrive and are matched to a purchase order and goods receipt where applicable — see the three-way match in a proper purchase order process.
2. The finance team or bookkeeper codes and enters the invoice into your accounting system.
3. The authorising manager or director approves the invoice for payment, confirming the amount is correct and the spend was authorised.
4. Approved invoices are added to the payment queue with the due date.

When the payment run day arrives, the queue already contains only approved, correctly-coded invoices. The run itself is then a matter of selecting what is due, reviewing the total, and authorising the batch — not a frantic invoice-checking exercise.

Pay on terms, not on demand

One of the most powerful levers a structured payment run gives you is the discipline to pay on contractual terms rather than on whatever date a supplier asks. If your agreement is 30 days net, payment goes on day 30 — not day 15 because you received an early reminder, and not day 45 because you were too busy to look. Paying consistently on agreed terms:

• Preserves your working capital by using the full term you negotiated.
• Builds a reliable payment reputation with suppliers, which often translates into better terms over time.
• Makes your cash-flow forecast accurate, because payments go out when planned.

There is rarely a good reason to pay early (unless the supplier offers a genuine early-payment discount worth taking), and paying late damages supplier relationships and credit terms. On time, every time, is the standard to aim for. Note that the Prompt Payment Code and certain statutory provisions affect payment obligations with SME suppliers — confirm your obligations with your legal adviser if in doubt.

Controls to protect against payment fraud

Payment fraud targets businesses with weak controls around authorisation and bank-detail changes. Build these habits into every payment run:

• Dual authorisation — require a second named director or manager to approve payments above a defined threshold before they are released from the bank. Most business banking platforms support this natively.
• Call to verify bank-detail changes — if a supplier notifies you of a change to their bank account, call them on a number you already hold (not the one in the email) to confirm before updating your records. The majority of business payment fraud starts with a fake bank-detail change notification.
• Don't pay from a forward-dated or unsigned document — invoices must be dated, addressed to the company and VAT-compliant where VAT is charged.
• Reconcile the payment run — after each run, confirm that every payment on the bank statement matches an approved invoice in the system, and that no additional payments appear.

These controls cost very little to implement and prevent losses that can run to tens of thousands of pounds from a single fraudulent event.