Most late payments are not a dispute. The invoice went to the wrong person, was forgotten in an inbox or is waiting for a signature. The problem is that in a small company nobody owns the follow-up, so it happens when the owner finds time, usually weeks later and in an awkward mood. A fixed routine turns collection into a boring, polite process, which is exactly what you want.
Why write it down
Without a routine, every late invoice is a new decision: is it too early to call, will it upset the customer, who should do it? With a routine the decision is already made. The customer also gets a consistent experience, and consistent is easier to accept than "sometimes they chase, sometimes they don't".
Before anything is late
Three small things make collection much easier later:
- Clear terms. The due date and the late-payment rules are on the invoice and in the contract or order confirmation.
- The right recipient. Ask each new customer who actually pays invoices, and send them there, not only to the contact you work with.
- A reminder in the system. Put the due date in a calendar or invoicing tool so that you see overdue items without searching.
The reminder timeline
| Day | Step | Who | Tone |
|---|---|---|---|
| Due date minus 3 | Optional note for large or new customers | Account owner | Helpful |
| Day 1 after due | Short email with the invoice attached | Finance person | Friendly, assumes an oversight |
| Day 7 | Phone call | Named caller | Curious, asks what is blocking payment |
| Day 14 | Formal written reminder with a new date | Finance person, owner in copy | Firm and polite |
| Day 21 | Decision on pausing delivery | Owner | Factual |
| Day 30 | Final notice before further steps | Owner | Clear about consequences |
Adjust the numbers to your sector, but keep the shape: email, call, formal letter, decision. Each step has one owner and one date.
Who calls
Choose one person and do not change it from case to case. It should be someone who is calm on the phone and knows the customer, often the account owner rather than the person who issued the invoice. The caller's goal is not to demand money. It is to learn one of three things: the invoice was not received, there is a problem with the work, or the customer simply has not paid yet. Each of these has a different next step.
A short script helps:
- "I am calling about invoice number X, due on date Y. Did it reach the right person?"
- "Is there anything about the work that is holding up payment?"
- "When can we expect it? May I confirm that by email today?"
End every call by agreeing a date and writing it down.
When to pause delivery
This is the part owners avoid, so decide it calmly in advance. A simple rule works for most small companies:
- Pause new work when an invoice is more than 21 days overdue and the customer has not agreed a payment date.
- Keep finishing work that is already in progress unless the amount at risk is large.
- Restart as soon as the payment arrives or a written plan is agreed.
Put the rule in your terms so the customer knows it from the start. Before you pause, give one clear warning in writing at least three working days earlier. A pause that surprises the customer feels like punishment; a pause that was announced feels like the process.
Be careful with exceptions. A key customer with a long history may deserve a longer wait, but make that a conscious decision by the owner, noted in the log, not something that happens by silence.
Payment plans and disputes
If the customer cannot pay in full, a short written payment plan is better than waiting: amounts, dates and what happens if one is missed. If they dispute part of the invoice, ask them to pay the undisputed part and put the rest into a separate conversation. If you track problems in a simple complaint log, add the dispute there so it gets an owner and an answer date.
Keep a simple log
One row per overdue invoice is enough:
- Customer, invoice number, amount and due date
- Each step taken: date, who, what was said or sent
- Promised payment date
- Current status: waiting, plan agreed, delivery paused, paid
The log protects you if the matter goes further, and it makes the next phone call easier because you start from what was already said. Review it for five minutes in a short weekly operations meeting so that nothing sits for weeks.
Common mistakes
- Waiting for a good moment. There is none. The first email on day 1 is the cheapest step.
- Several people chasing. The customer gets mixed messages and you lose track of what was promised.
- Only emailing. A short call finds the real reason much faster.
- Threatening without a rule. If you say you will pause delivery, you must be ready to do it.
- Forgetting the good customers. Late payment from a loyal customer is often a cash-flow signal worth a friendly conversation.
How to start
- Write the timeline above on one page and adjust the days.
- Name the person who sends reminders and the person who calls.
- Add the pause rule to your terms for new orders.
- Create the log and enter all invoices that are currently overdue.
- Use the routine on the next late invoice, then review what to change after a month.
Summary
Collecting late payments does not need pressure; it needs a routine. Fixed reminder dates, one named caller, a pause rule that customers know in advance and a short log turn an uncomfortable task into a predictable one, and most invoices get paid at the first or second step.
Sources
- Our related articles linked above.
- The approach described here is common practice for small companies, used as a practical guide. It is not legal advice; check the rules on late-payment interest and debt collection that apply in your country. No client results or market figures are claimed in this article.
