Follow up immediately or within 1–3 days after an invoice becomes overdue, as waiting too long reduces the chance of collection. While 30 days is standard, you should send a polite reminder in the first 7 days, a firmer follow-up at 14 days, and a final warning at 30–60 days.
Invoices must always include the invoice date as well as the due date. Setting a due date encourages the client to pay you within a certain time frame. The general rule is 30 days from the invoice date. However, you can discuss this with your customer and either make it shorter or longer than 30 days.
Many businesses extend net 30 terms with their invoices, which means you have 30 days to make the payment. Some even give net 60, 90, or even higher terms. This helps with your cash flow and gives you an opportunity to assess the product or service you have purchased before you pay for it.
The standard invoice timeline usually spans 30 days, often referred to as Net 30 terms, but the specific duration can vary based on industry standards, client payment processes, and specific invoice terms.
Although the legal time limits for invoicing are usually forgiving, you should send invoices within 30 days to maintain a steady cash flow. Electronic signatures can help you keep track of your invoices. Requesting digital signatures is fast, so you can do it before forgetting about the invoice.
Public sector organisations are legally required to pay invoices within 30 days, while consumer clients have no fixed legal period – meaning you can set a fair and reasonable term yourself.
Some clients genuinely believe they'll have the money “next week.” Others are juggling multiple bills and hoping things magically align. Either way, they're postponing payment, not maliciously, but optimistically (and sometimes irresponsibly).
Most companies expect invoices to be paid in around 30 days, so anything around this figure should be considered relatively normal. Any higher – i.e., heading into 40 or more – and you might want to start considering the cause.
Remember: an invoice requiring immediate payment should not come as a surprise. Clients should understand that payment is due upon receipt when your contract is completed.
Under the Limitation Act 1980, invoices can be issued up to six years after the work was completed or the goods were delivered. While there is no legal restriction within this time frame, issuing invoices promptly is always best to avoid disputes or complications.
Your right to be paid
Unless you agree a payment date, the customer must pay you within 30 days of getting your invoice or the goods or service.
Under the current guidelines, users must upload invoices within 30 days from the invoice date. If you miss this window, the IRP will reject the invoice, which means it won't be considered valid for GST compliance or for claiming input tax credit.
What to do if a customer doesn't pay
Under “30 days payment terms,” the buyer must pay the seller within 30 days after the invoice date. Depending on the agreement, these terms might also be phrased as “net 30” or include variations such as “30 days from receipt of goods” and “30 days after the end of the month.”
If the debtor does not pay within 21 days of receiving the demand, a creditor may then apply to the court to request bankruptcy (if an individual) or a winding up (if a company) if the debt is not paid.
Manner of Issuing Invoice
The invoice shall be prepared in triplicate, in case of supply of goods, in the following manner: (a) The original copy being marked as ORIGINAL FOR RECIPIENT; (b) The duplicate copy being marked as DUPLICATE FOR TRANSPORTER; and (c) The triplicate copy being marked as TRIPLICATE FOR SUPPLIER.
False invoicing may also be considered invoice fraud. This occurs when a business sends an invoice to a customer to pay for goods or services that the business is aware that the customer did not purchase.
Missing or Incorrect Information: No unique invoice number. No issue date or incorrect date. Missing or incorrect company name or address.
According to a PYMNTS Intelligence report, nearly 60% of invoices are paid late, with almost half outstanding for more than 90 days. These delays don't just create inconvenience for your accounting team, they threaten your business's survival.
30+ days late
If your client hasn't made payment (or meaningful contact) within 30 days of the invoice becoming due, it may be time to issue a letter before action (LBA), or to pass over the matter to a debt collection agency. An LBA gives your client formal notice that legal action is imminent.
What happens if a client doesn't pay – what are your options?
A business owner can set their own payment terms when it comes to invoicing. They can choose to offer discounts for early payments and payment upfront. If no agreed-upon payment date has been established, a customer must pay a company within 30 days of receiving an invoice or the goods or service.
The "15/3 rule" for credit cards is a strategy to improve your credit score by making two payments during your monthly billing cycle: one about 15 days before the statement closing date and another three days before, aiming to lower your reported balance and credit utilization. While the specific 15-day/3-day timing isn't magical, making multiple payments to reduce your balance before the statement closes helps lower credit utilization, a key factor in credit scoring, though it doesn't increase the number of on-time payments reported.
The 2-2-2 credit rule is a guideline for building strong credit, suggesting you should have two active credit accounts (like cards or loans) for at least two years, with consistent on-time payments for those two years, often with a minimum credit limit of $2,000 per account, to demonstrate financial responsibility to lenders, especially for mortgages. It's a benchmark to show you can handle credit well over time, reducing lender risk and improving approval odds for major loans.