How to Cut Debtor Days: A Weekly Collections Routine for SMEs

Late-paying customers are the quiet drain on most SME balance sheets. The fix is rarely a tougher letter; it is a simple, weekly routine that starts before the invoice is even due. Here is one you can put in place this month.

Start with one number: debtor days

Debtor days (often called DSO) tell you how long, on average, it takes to turn a sale into cash. The quick version is: trade receivables ÷ credit sales for the period × number of days in the period.

For example, a Riyadh distributor with SAR 3 million of receivables and SAR 9 million of credit sales over the last 90 days has debtor days of 30. If its standard terms are 30 days, it is collecting on time. If its terms are 15 days, it is financing its customers for an extra fortnight.

Track this monthly, and alongside it the share of receivables more than 60 days overdue. Debtor days tell you the trend; the overdue share tells you where the pain is.

The weekly collections routine

1. Get the invoice right first time. Many "late" payments start as disputes: a wrong purchase order number, a missing delivery note, the wrong legal entity. Check these before the invoice goes out. A correct invoice sent on the day of delivery is the cheapest collections tool you have.

2. Confirm receipt within a few days. Send a short note asking the customer to confirm the invoice has been received and approved. This surfaces disputes while there is still time to fix them before the due date.

3. Remind before the due date, not after. A polite reminder about a week before the due date, naming the invoice and amount, moves you up the customer's payment run. Customers tend to pay the suppliers who ask clearly and early first.

4. Follow a fixed escalation ladder. Agree it once and stick to it. For example: a reminder on the due date, a phone call at 7 days overdue, a note from a senior person at 21 days, and a hold on new orders at 45 days. Consistency matters more than the exact days.

5. Hold one 30-minute review each week. Go through the ten largest overdue balances. For each, record the reason, the next action, who owns it and when. Anything with no reason recorded is the first call to make.

6. Match cash daily. Allocate receipts to invoices as they arrive. Unallocated cash makes the ageing report wrong, and chasing a customer who has already paid damages the relationship.

What this means for your business in the GCC and India

UAE: e-invoicing will change how invoices reach customers. Under the UAE's e-invoicing framework, businesses with revenue of AED 50 million or more must go live by 1 January 2027, and those below that threshold by 1 July 2027. Invoices will move in a structured electronic format through accredited service providers.

For collections, this is useful. Structured invoices leave less room for the data errors that cause disputes, but only if your customer master data (legal names, tax registration numbers, addresses) is clean. Fixing that now helps both compliance and cash. If you sell into the UAE, check with your adviser which phase applies to you.

India: small suppliers have legal backing to charge interest. If your business is registered as a micro or small enterprise under the MSMED Act, buyers must pay within 15 days, or within the agreed period up to a maximum of 45 days. If they pay late, Section 16 of the Act sets interest at three times the bank rate notified by the RBI, compounded monthly, and this applies whatever the contract says. Unpaid amounts can be referred to the Micro and Small Enterprises Facilitation Council through the MSME Samadhaan portal.

You do not need to threaten anyone. Simply showing your Udyam registration number and the payment terms on every invoice reminds customers that the rules apply. Indian buyers also lose their income-tax deduction for late payments to registered micro and small suppliers, so they have their own reason to pay on time. Check with your adviser before claiming interest.

Your checklist for this month

• Calculate debtor days and the share of receivables over 60 days overdue.
• Add a pre-send check for PO number, delivery proof and correct customer entity.
• Send a receipt confirmation within a few days of every large invoice.
• Schedule reminders a week before the due date.
• Write down your escalation ladder and share it with sales.
• Book a 30-minute weekly review of the ten largest overdue balances.
• UAE: clean customer master data ahead of your e-invoicing go-live date.
• India: if you are a registered micro or small enterprise, print your Udyam number and payment terms on every invoice.

If you want the reminders and weekly overdue list to run without a spreadsheet, NexCFO's AR collections agent handles that routine for you.

Cash you have earned is only useful once it is in the bank; a steady weekly routine is what gets it there.