What it means
A sale on credit is a loan to the customer, and cash collection is how the loan is recovered. Most customers pay, but not necessarily on time, and the gap between when a business could be paid and when it is paid is a cost: money tied up in receivables must be funded, and the longer an invoice is outstanding the more likely it is never to be paid at all.
Collection begins before the invoice. Credit checking new customers, setting credit limits and agreeing payment terms in writing determine how much risk the business takes and what it can enforce.
The invoice itself must be accurate, complete (purchase order number, correct legal entity, agreed price, correct tax) and sent immediately on delivery, because every invoice error gives the customer a legitimate reason to delay and every day's delay in sending is a day added to collection. Once invoiced, the receivables ledger is monitored through an aged debt report showing what each customer owes by how long it has been outstanding.
Good practice contacts customers before the due date for large invoices (to confirm the invoice has been received, approved and scheduled for payment, and to surface disputes early), reminds them at the due date, and follows a defined escalation afterwards: a courteous call at 7 days overdue, a firmer letter at 14, suspension of further credit at 30, a final demand at 45, referral to a collection agency or legal action at 60. The precise steps vary, but their existence and consistent application are what distinguish businesses that get paid from those that hope to.
Disputes are the main cause of delay in business-to-business collection. A customer who has a query about price, quantity, quality or paperwork will typically withhold the whole invoice, not just the disputed part.
Collections teams therefore log disputes, route them to the person who can resolve them (sales, operations, finance) with a deadline, and ask the customer to pay the undisputed portion meanwhile. The dispute log is also a source of process improvement, since recurring disputes point to a recurring error upstream.
The tools have expanded. Electronic invoicing and customer portals speed delivery and show the customer's payment status.
Automated reminder sequences handle routine chasing. Payment options (card, direct debit, instant transfer, embedded pay-now links) remove friction.
Receivables analytics predict which customers are likely to pay late and direct effort to them. Receivables finance and credit insurance transfer part of the risk or accelerate the cash for a fee.
Measures include days sales outstanding, the collection effectiveness index (cash collected as a percentage of what was collectable), the percentage of receivables overdue, bad debt as a percentage of sales, and the number of disputes and their average resolution time. Targets and bonuses for collections staff are set on these, and sales staff are increasingly measured on collected rather than invoiced revenue, which aligns the incentives.
In practice
Real-world examples.
Example
A law firm introduces interim billing and a 14-day reminder cycle and reduces its lock-up (unbilled work plus receivables) from 120 days to 85.
Example
A software company moves customers to annual direct debit, cutting collection effort on 80% of its invoices to nil.
Example
A construction subcontractor uses the statutory adjudication process to recover a $200,000 retention withheld without cause.
Think of it
“Cash collection is getting paid what you're owed-turning receivables into actual money.
Formula
Calculation
Days Sales Outstanding = Receivables / Credit sales x Days in period
Collection Effectiveness Index = (Opening receivables + Credit sales in period minus Closing receivables) / (Opening receivables + Credit sales minus Closing current receivables) x 100%
Cash released by reducing DSO = Daily credit sales x Days reduced
Worked example. A distributor has annual credit sales of $36,500,000 ($100,000 a day) on 30-day terms. Receivables are $5,500,000, so DSO = $5,500,000 / $100,000 = 55 days: customers are paying on average 25 days late. The aged debt report shows: current $2,800,000; 1 to 30 days overdue $1,600,000; 31 to 60 days $700,000; over 60 days $400,000. Bad debts run at 0.8% of sales, $292,000 a year. The company funds its receivables through an overdraft at 8%.
The finance director sets a target of 40 days DSO within a year. The programme: invoices sent electronically on the day of dispatch instead of weekly by post (saving about 4 days); a pre-due-date call on every invoice over $10,000; automated reminders at due date and 7 days; a dispute log with a 5-day resolution target; credit hold at 30 days overdue, enforced; and monthly review of the 20 largest overdue accounts by the finance director and sales director together.
Results after a year: DSO 41 days; receivables $4,100,000; bad debts 0.4% ($146,000).
- Cash released = $100,000 x 14 days = $1,400,000, which reduces the overdraft
- Interest saved = $1,400,000 x 8% = $112,000 a year
- Bad debt saved = $146,000 a year
- Cost of the programme: invoicing and reminder software $18,000 a year; one additional credit controller $48,000
- Net annual benefit = $112,000 + $146,000 minus $66,000 = $192,000, plus a one-off $1,400,000 of cash
Collection effectiveness index for the final quarter: opening receivables $4,300,000; credit sales $9,125,000; closing receivables $4,100,000; closing current (not yet due) receivables $2,900,000. CEI = ($4,300,000 + $9,125,000 minus $4,100,000) / ($4,300,000 + $9,125,000 minus $2,900,000) = $9,325,000 / $10,525,000 = 88.6%, up from about 75% at the start.Case study
Seen in the real world.
A packaging company with $20,000,000 of sales had a DSO of 68 days and treated it as a feature of the industry. Collection was done by the sales representatives, who were paid on invoiced sales and reluctant to press customers, and by an accounts clerk who sent statements monthly. The company's overdraft was permanently near its limit, and the bank had begun to ask questions.
A new finance manager took collection away from sales and built a small credit control function with a clear escalation ladder. The first month's calls found that a third of overdue invoices were held for disputes nobody had logged: wrong purchase order numbers, prices differing from quotes, deliveries short-shipped without a credit note. She set up a dispute process with sales and operations, fixed the two systematic causes (a quote-to-invoice pricing mismatch and an unrecorded short-shipment procedure), and, over strong objections, moved the sales commission basis to cash collected within 60 days.
DSO fell to 44 days in nine months, releasing $1,300,000; the overdraft was halved; two customers who had been paying at 120 days as a matter of policy were put on credit hold and, after a difficult fortnight, paid and stayed on terms; and one customer who could not pay was identified four months earlier than it would otherwise have been, limiting the loss to $30,000. The managing director's comment to the board was that the company had been lending its customers $1,300,000 interest-free because nobody had been asked to get it back.
Watch out
Common mistakes.
- Leaving collection to salespeople whose incentives reward invoicing, not payment.
- Chasing only after the due date. A pre-due-date check on large invoices catches disputes and missing paperwork before they cause delay.
- Tolerating a long DSO as an industry norm. Terms are negotiated, and consistent, courteous enforcement usually improves payment without losing customers.
Questions
People also ask.
What is a good DSO?
One close to the payment terms offered. On 30-day terms, DSO of 35 to 40 is good; 60 or more indicates weak collection or generous informal terms.
Does firm collection damage customer relationships?
Rarely, if it is professional and consistent. Customers respect suppliers who manage their receivables, and prompt contact resolves problems before they fester.
When should a debt be passed to an agency or lawyers?
When the internal escalation has been exhausted, typically at 60 to 90 days overdue, and the amount justifies the cost. Earlier for customers showing signs of insolvency.
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