A khata app that also does billing: why it should be one ledger

Is there a khata app that also does billing?

Yes. A POS with a built-in credit ledger does both. You complete an udhaar sale at the till like any other sale, and the customer's balance updates from that same entry. A khata-only app records the amount owed but not what was sold, so it can't reduce stock or produce a receipt. A POS with khata built in records the items, prints the receipt, deducts the stock and adds the amount to the customer's balance, all from one entry. NexusTill works this way on every plan, including Starter at Rs 2,999 a month.

Why do most shops end up running two apps?

It happens in stages. First the paper khata gets painful: torn pages, blurred dates, totals nobody trusts. A khata app fixes the credit side, and it helps. Then the shop grows. Stock runs out without warning, a customer asks for a proper invoice, and a second person starts working the counter. None of that is a credit problem, so a billing tool arrives next to the khata app.

Now every udhaar sale gets entered twice, because the two apps share nothing with each other.

What does a khata app record, and what does it miss?

A khata app records a rupee amount against a customer's name, with a date. For tracking credit alone that works: it is small, fast and easy to explain. It does not record what was sold, at what price, or from which stock. So it can tell you Ahmed owes Rs 4,200, but not that the Rs 4,200 was six bags of atta and two tins of ghee, and it can't take those off your shelf count.

• It keeps a dated balance for each customer, which is more accurate than paper.
• It has no line items, so there is nothing to print as a receipt and nothing to show when a customer disputes the amount.
• It doesn't touch stock, so your shelf count drifts every time you sell on credit.
• It doesn't know your cost price, so it can't tell you whether that Rs 4,200 sale made money.

Why are credit and billing the same ledger?

In an udhaar sale, goods leave the shop, a price is agreed, and no cash goes into the drawer. That one event has two effects of the same size at the same moment: stock goes down and the amount owed to you goes up. Split them across two apps and you get two records that can disagree, and by the end of the week they usually do.

The most common mismatch: the sale goes into the khata app because that's where the money is tracked, but never gets billed because the customer left without a receipt. Your receivables are right, but your stock is off by six bags of atta, and you find out three weeks later when you reorder something you already have.

What changes when the credit sale and the stock movement are one entry?

The way you sell stays the same. You hand over the goods and say "likh lo". What changes is what the shop can tell you afterwards:

• Each customer's balance is itemised. When someone says "itna nahin tha", you can show them the four sales that add up to it, with dates, and the conversation goes differently.
• Your stock count includes credit sales, so the low-stock list is accurate instead of always showing more than you have.
• Your day's total is the real total, cash plus udhaar, and not only what's in the drawer.
• You can see profit on credit sales, because the items and their cost are recorded with the amount.
• At closing time you check one number against the drawer instead of matching two apps by hand.

Why does the receipt matter so much?

A khata entry is your word. A printed receipt with the items and the date is a record you and the customer both hold. Most udhaar disputes come from two people remembering a month of small purchases differently, not from dishonesty. An itemised bill means nobody has to remember.

Do I have to stop using my khata app to do this?

Not on day one, and you shouldn't. Carry your current outstanding balances over as opening amounts, record new sales in one place only, and keep the old app read-only for a couple of weeks for reference. You agree on today's number instead of moving the history across.

1. 1Write down what each regular udhaar customer owes today. Carry over that number, not their history.
2. 2Add those customers with their balance as an opening amount. For most shops that's about twenty names and ten minutes.
3. 3From tomorrow, bill every credit sale at the till with items, price and customer, and stop typing into the old app.
4. 4Record payments against the customer as they come in. The balance goes down on its own.
5. 5After two weeks, check a few balances against your old app. If they match, stop opening the old one.

When is a khata-only app still the right tool?

If you have hardly any inventory, never print a receipt, don't sell anything where cost price matters, and one person handles everything, a khata app is a good fit and a POS is more than you need. Free is a fair price for a small problem. Moving to a POS is worth it once you have stock that runs out, staff who need to see the same ledger, or a customer who wants an invoice.

If that's your shop, NexusTill records the credit sale and the stock movement as one entry, keeps a dated running balance for each customer with email reminders, and prints both a quick receipt and a proper tax invoice from the same sale. It works offline, so a dropped signal never sends you back to the register. The trial is 7 days, needs no card to start, and doesn't turn into a paid plan on its own, so you can put a week of real udhaar through it and see whether closing up takes less time.

Written by The NexusTill team.