Most late payments are not refusals. A customer forgot, the bill sat in a pile, or the person who pays never saw it. A calm, regular routine fixes most of these — and because it is the same for everyone, nobody feels singled out.
Before you send the bill
- Agree payment terms up front — "payment within 15 days" — and print them on every invoice with the due date.
- Make paying easy: bank details and a UPI ID or QR code on the invoice, so the customer can pay from the same screen.
- Send the bill the same day, to the person who actually pays. A bill shared on WhatsApp or email the day of delivery is paid sooner than one handed over with the goods.
The routine
| When | What | Tone |
|---|---|---|
| 3 days before due | A friendly heads-up with the invoice link | Helpful |
| On the due date | A short reminder that payment is due today | Matter-of-fact |
| 7 days late | A reminder with the amount and a statement of account | Polite, clear |
| 15 days late | A phone call — ask if there is a problem with the bill | Personal |
| 30 days late | A written note: new orders on advance payment until cleared | Firm, still polite |
Put the dates in a calendar or let your billing software send the reminders, so the routine does not depend on you remembering.
Messages you can copy
Before the due date
"Namaste! A gentle reminder that invoice INV-0142 for ₹18,250 is due on 25 October. You can view and pay it here: [link]. Thank you for your business."
On the due date
"Hello, invoice INV-0142 for ₹18,250 is due today. Bank and UPI details are on the invoice: [link]. Please ignore this if already paid."
A week late
"Hello, our records show ₹18,250 against invoice INV-0142 is still open — it was due on 25 October. I’ve attached your statement. Could you let me know when we can expect payment? Happy to help if anything on the bill needs correcting."
Keep them short, always include the invoice number, amount and a link, and say "please ignore if already paid" — payments cross in the post more often than you think.
Habits that make it work
- Record payments the day they arrive, so you never remind someone who has already paid.
- Send a statement of account once a month to regular customers — it catches missed bills on both sides.
- Allocate part payments against the right invoices, so the balance you quote matches theirs.
- Say thank you when a late payment comes in. It makes the next reminder easier.
Know the rules that help you
- MSME suppliers: if you are registered on the Udyam portal as a micro or small enterprise, the MSMED Act requires buyers to pay within the agreed period — and never later than 45 days (15 days if nothing was agreed). Late payments carry interest, and you can file a complaint on the MSME Samadhaan portal.
- Buyers’ tax deductions: for buyers, payments to micro and small enterprises that are made later than the MSMED Act allows may not be deductible in that year under section 43B(h) of the Income-tax Act. Many buyers now pay registered MSMEs on time for this reason — mentioning your Udyam number on the invoice helps.
- Input tax credit: under GST, a buyer who has not paid the supplier within 180 days of the invoice date must reverse the input tax credit they claimed until they pay.
Mention these gently, if at all — they are a backstop, not an opening line.
