Features

Bill, get paid and track stock — even offline.

Each line is taxed at its own rate, and CGST + SGST or IGST is chosen for you.

Per-product GST rates — mix 5% and 18% items on one bill
Invoice numbers with no gaps and no repeats
Quotations become bills without retyping
Your signature and stamp on every document

GST worked out per line

Who is buying?Buyer in RajasthanSame state as the shopBuyer in GujaratAnother state

Change a quantity or the buyer's state — the tax follows
#	Item	Rate (₹)	GST	Amount (₹)
1	PVC pipe, 1 inch	180.00	9% + 9%	849.60
2	LED bulb, 9 W	99.00	6% + 6%	665.28
3	Cement, 50 kg bag	380.00	14% + 14%	972.80

Taxable value: 2,074.00
CGST: 206.84
SGST: 206.84
Total (₹): 2,487.68

Same state: each rate is split half CGST, half SGST.

Live — change a quantity or the buyer's state.

Bill faster GST bills and quotations without the tax maths. Keep selling The counter keeps billing when the internet drops. Know your money Who has paid, who owes, whom to call today. Know your stock Stock drops as you bill and warns before it runs out.

Billing

Bill without the busywork

GST worked out for you, numbers that never clash, and a counter that keeps going offline.

Works offline

The internet drops. Billing doesn’t.

The desktop app keeps your shop on your own computer and catches up when you are back online.

Sign in, bill and update stock with no connection
Every offline bill takes the next number
Backs up on its own when you reconnect

Works with the internet off

Internet offOffline — billing as normal

INV-1041Backed up
INV-1042Waiting to sync

1 waiting to sync.

Customers

Everyone you bill, filed once

Filed the first time you bill them, the same on every device.

Several phones, GSTINs and addresses each
GSTINs checked as they are entered
Import a list from a CSV file

Several GST numbers

Every registration, one login

Switch GST number in one step; each keeps its own series, signature and stamp.

Separate invoice numbering per GST number
How many you hold depends on your plan

Payments & khata

Know who owes you what

Every bill, every part payment and every bit of udhaar — in one place, per customer.

Payments and follow-ups

Stop guessing who has paid

Record payments against bills, see what is outstanding, and know whom to call today.

Part payments, recorded as they come in
Follow-up dates and reminders on unpaid bills
Send bills by email or WhatsApp — now or scheduled

Part payments add up

Unpaid billsChase today: 1

Outstanding₹11,180.00

Record a payment — the status and the outstanding total follow
#	Bill	Customer	Due (₹)	Status
1	INV-1038	Ravi Traders	4,500.00	Part paid
2	INV-1040	Meena Stores	4,200.00	Overdue
3	INV-1041	Gupta & Sons	2,480.00	Unpaid
4	INV-1042	Walk-in	0.00	Paid

Khata book

Your register, without the paper

Bills, payments and udhaar in one running account per customer.

“You gave” and “You got”, like the register
The balance after every line
Who owes you what, largest first

Balance after every line

Ravi TradersJaipur · customer since August

Owes you₹4,500.00

Ravi Traders' account, oldest first
#	Date	Details	You gave	You got	Balance
1	3 Oct	Bill INV-1038	12,500.00		12,500.00
2	5 Oct	Payment on INV-1038		8,000.00	4,500.00

Stock

Stock that counts itself

Your catalogue prices itself, and every bill takes its items off the shelf.

Products and stock

Know what’s on the shelf

Stock drops as you bill, and a product near empty says so.

Selling price from cost and margin, or your own
Product photos and specifications
Import products from a CSV file, previewed first

Billing lowers stock

Sharma Hardware3 products

Low or out of stock0

Sell a few — watch a product reach its alert level
#	Product	Alert at	Status
1	PVC pipe, 1 inch	10	In stock
2	LED bulb, 9 W	12	In stock
3	Cement, 50 kg bag	5	In stock

Everything is above its alert level.

Basic and up

Low-stock alerts

Hear before the shelf is empty

An alert when a product reaches its restock level — queued if you are offline.

Set a level per product
Sent when you reconnect if you were offline

Reports & notes

See the business, not just the bills

Your own reports, a dashboard of what you watch, and the tasks a shop keeps in its head.

Reports, dashboard and notebook Advanced and up

The figures you actually watch

Build your own reports without waiting for us — and keep the shop’s tasks and notes beside them.

Your own reports, exported or emailed on a schedule
A dashboard of the widgets you choose
Tasks with an email reminder on the due day, on every plan

Your figures, your notes

₹1,62,340Sales this week

₹11,180Outstanding

86Bills issued

Sales

Sales, Mon: ₹18,420Mon
Sales, Tue: ₹22,160Tue
Sales, Wed: ₹16,750Wed
Sales, Thu: ₹24,900Thu
Sales, Fri: ₹28,340Fri
Sales, Sat: ₹39,670Sat
Sales, Sun: ₹12,100Sun

Advanced and up Build your own reports and widgets — this is one shop's week.

Devices & security

Yours, on every screen

Devices and security

One account. Only yours.

The same account on the desktop, in the browser and on your phone — and no one else’s data in sight.

Desktop bills offline; browser and phone use the same account
Two-factor sign-in: an app, or a code by email and WhatsApp
Passwords stored hashed, never readable

One account, every screen

asha@sharmahardware.inWorks on

DesktopBills and prints — works offline
BrowserThe same screens, online
PhoneView and share bills, stock, customers

Two-factor sign-inA 6-digit code at sign-in — Authenticator app or Email and WhatsApp.

Protected with a second factor

API

For your own software

Read your bills, products and customers from the tools you already use.

API and webhooks Advanced and up

Your data, in your own tools

Read bills, products and customers through an API; hear about changes by webhook.

API keys you create and revoke
Webhooks with a delivery log

Amounts in paise

GET /api/v1/bills
x-api-key: bz_••••••••••••3f2a

200 OK
{
  "status": 200,
  "message": "Bills",
  "data": [
    {
      "number": "INV-1043",
      "customer": { … },
      "lines": [ … ],
      "total": 248768,
      "amount_paid": 0,
      "issued_at": "2026-10-09T10:42:00.000Z"
    }
  ]
}

How Billyng works

Three steps to your first bill

Add your products Prices, GST rates and stock — or import a spreadsheet.
Bill your customer Pick items and a customer. Tax and numbering are done for you.
Track your business Payments, khata, stock and reports update on their own.

One place for your shop

One bill updates everything

No second register, no copying figures between books. Issue the bill — the rest follows.

You issue a bill INV-1043

Stock — Each item comes off the shelf
Customer — Filed, the first time you bill them
Khata — Added to what they owe
Follow-up — A date to chase it, and a reminder
Reports — Counted in your figures

Ready to make billing simpler?

Start on the free plan — no card, no time limit. Questions first? We're happy to help.

Start free

Talk to us See pricing