Preventing late payments before the first reminder

QUESTION 01

What should we agree with a new client before starting work?

Agree the scope, price, currency, billing triggers, payment terms and the evidence needed for acceptance. Identify the correct buyer legal entity and the people who commission the work, approve it and handle payment. Confirm supplier onboarding, PO requirements and the required invoice submission route. These details should be settled while the commercial agreement is being made, not discovered after your team has delivered the service.

Record the agreement and establish who may approve changes or resolve a dispute on each side. Ask for a specific explanation of ambiguous terms: “30 days” needs a defined starting point, and “after approval” needs a clear approval process. The Small Business Commissioner recommends negotiating before work and putting terms in writing. Use an appropriate adviser for material contractual provisions, particularly where several countries or legal entities are involved.

Buyer legal entity and billing address:
Supplier legal entity and required registration:
Scope, price and currency:
Billing trigger and invoice frequency:
Acceptance evidence and authorized approver:
Agreed payment terms and due-date calculation:
PO requirement, owner, amount and expiry:
Invoice submission channel and required format:
Named accounts-payable contact:
Relationship owner and escalation contact:
Supplier onboarding status:
Verified payment instructions and change-verification procedure:
Dispute and scope-change process:
Our billing owner and readiness check date:

Set up the agency receivables workflow ↗

QUESTION 02

Which invoice errors should we catch before sending?

Check the legal entities, invoice reference, service description and period, calculation, currency, applicable tax details, PO reference and submission route. Confirm the agreed due date and verified payment instructions. Match the billed work to the contract and approved changes, and make sure this is not a duplicate submission. The recipient should be able to connect the document to the purchase and understand the amount requested.

Legal requirements differ. For example, GOV.UK lists a unique invoice number, supplier and customer information, supply and invoice dates, a clear description, amounts, applicable VAT and the total owed for UK invoices. That is not a complete global tax-invoice standard. Maintain a locally appropriate checklist and the buyer’s confirmed requirements. When an invoice needs correction, preserve the audit trail and use your accounting process rather than overwriting records without explanation.

QUESTION 03

What checks are reasonable before offering a new client payment terms?

Check that you know the contracting entity, its trading identity, the authorized buyer and a verified finance contact. For material exposure, consider proportionate checks such as official company records, available credit information and references obtained through legitimate channels. Ask how the customer purchases your type of service and whether your proposed billing process fits its actual approval requirements.

Use the findings to decide the amount of credit exposure, deposit or milestone structure your business can accept. A familiar brand, a polished website or a large contract is not a payment guarantee. Treat a credit report as one dated input rather than a prediction, and respect applicable privacy and data-use requirements. The Small Business Commissioner recommends researching the customer before agreeing terms; this checklist is a practical application, not a universal scoring model.

QUESTION 04

When do deposits or milestone invoices make sense for service businesses?

They can reduce the amount of work you finance before receiving payment, especially when a project requires upfront costs, reserved capacity or a long delivery period. Match billing events to understandable commercial milestones: an agreed start payment, a defined delivery and a final accepted stage, for example. These are possible structures, not recommended percentages or terms that suit every industry.

Explain what each payment covers, when it becomes due and how cancellations, revisions or disputes will be handled. Check whether the buyer can process the proposed arrangement before signing. Deposits do not eliminate delivery obligations, and labels such as “non-refundable” do not make a clause enforceable everywhere. Have material terms reviewed for the applicable law and tax treatment. If the buyer requires all payment after completion, model whether your cash position can support that exposure.

QUESTION 05

How can scope changes turn into late-payment disputes?

A delivery team may treat a requested change as approved while the buyer’s budget or purchasing record still covers only the original work. The invoice then reaches finance with an amount or description that the approver cannot match. A friendly conversation with a project contact may provide useful context without proving that the right person authorized an additional charge.

Before material extra work starts, record what changes, the price, timing, acceptance criteria and who approves it. Confirm whether the PO must also be increased or amended. Share the approval with your billing owner so the invoice and supporting evidence match. This is a prevention workflow rather than a claim that every change requires the same paperwork. If authorization is genuinely disputed, involve the commercial decision-makers; changing the invoice wording cannot create an agreement that was never made.

QUESTION 06

How should an agency set up monthly retainer billing to avoid confusion?

Define what the monthly fee buys, the service period, whether billing is in advance or arrears, the due date and how extra work is authorized. Clarify whether unused capacity expires, carries forward or is treated another way. Match the invoice description to those terms so the client does not have to reconstruct what a recurring charge represents each month.

Confirm that the purchasing authorization covers the retainer’s duration and amount, and review it before renewal or exhaustion. Keep a contact responsible for confirming any required monthly acceptance. A recurring invoice does not automatically mean recurring payment, and a stored payment method still requires appropriate authorization and processing. When the retainer changes, communicate and record the new arrangement before applying it. These operational steps support clarity; enforceability and tax treatment require the relevant local review.

Work through agency retainer payment terms ↗

QUESTION 07

Should we offer an early-payment discount to get paid faster?

Compare the cost of the discount with the actual benefit of earlier cash, rather than treating a discount as automatically worthwhile. In an illustrative example, a 2% discount on a USD 10,000 invoice costs USD 200 if the customer qualifies and pays. Ask whether the customer can realistically accelerate its approval and payment process; a discount will not necessarily fix a missing PO or disputed deliverable.

Specify the qualifying date, amount, calculation and treatment of partial payment in the agreement. Model the effect on margin and your cash forecast, and compare reasonable alternatives such as a deposit, smaller milestones or ordinary payment terms. Do not assume a published study establishes that a particular discount works for your customers. Any change to existing terms should be agreed by authorized people and reflected correctly in billing and tax records.

QUESTION 08

How can we prevent fake bank-detail changes from diverting invoice payments?

Require independent verification before changing payment instructions. Use a previously established contact route, not a phone number or link supplied only in the change request. Limit who can alter bank details, record the verification and tell customers how legitimate changes are communicated. A message in a familiar email thread can still be fraudulent if an account has been compromised.

The FBI’s Internet Crime Complaint Center recommends secondary channels to verify changes in account information and warns against supplying credentials or personal information by email. If a transfer may have been diverted, contact the financial institution immediately to ask about recovery steps and preserve the evidence; recovery is not guaranteed. Coordinate through verified contacts rather than sending new payment instructions into the potentially compromised conversation. Local reporting routes and the provider’s incident process also matter.

QUESTION 09

How do we measure whether our late-payment prevention process is working?

Track outcomes and the reasons behind them: overdue balances, days past due, invoices rejected at submission, unresolved approvals, disputed amounts and promises met or missed. Review these by client and recurring cause. A fall in reminder volume is useful only if invoices are being resolved; it could also mean that your team stopped following up or lost visibility.

Use consistent definitions and inspect unusual changes before drawing conclusions. Faster payment can reflect different contract terms, invoice timing or client mix, not just better messaging. Keep an aging report to identify exposure and a brief reason log to identify preventable errors. This is HUNT’s recommended measurement approach, not a benchmark established by the cited process guides. Start with a reliable baseline and improve the most frequent or financially significant blocker rather than optimizing email opens alone.

Build and interpret an aging report ↗

QUESTION 10

How do we stop one late client payment from disrupting payroll or delivery?

Make the dependency visible before the payment is late. Forecast the timing of expected receipts and unavoidable outflows, identify weeks that rely on one large invoice, and test what happens if that receipt moves. Keep expected payment dates separate from money already in the bank. Consider whether billing milestones, a deposit, a cash reserve or a smaller credit exposure would make the relationship more sustainable.

JPMorgan Chase Institute’s historical small-business research shows why cash buffers deserve attention, but it does not establish a suitable reserve for your firm today. Set your own operating assumptions with your finance adviser and examine payroll timing within the week, not just the closing balance. Communicate early with appropriate decision-makers when a shortfall appears. A more forceful reminder cannot replace a credible cash plan or ensure a customer has funds available.

Build a 13-week cash flow forecast ↗