CGST, SGST or IGST: which one applies to your sale?
How to tell whether a sale is charged CGST and SGST or IGST, with worked examples and the mistakes that cost input tax credit.
The Billyng Journal · Topic
GST & compliance
Registration, invoices, tax heads and the rules behind them.
7 articles
How to check a GSTIN is valid (and what each character means)
A GSTIN has 15 characters and a built-in check digit. Here is what each part means and how to verify one before you bill.
The GST composition scheme: is it right for your shop?
Who can opt for the composition scheme, the rates, what you give up, and why a composition dealer issues a bill of supply instead of a tax invoice.
Credit notes and debit notes under GST: when you need one
Goods returned, a later discount, a wrong price — when GST asks for a credit or debit note, and the deadline that catches people out.
GST invoice format: every field a tax invoice must carry
The details Rule 46 of the CGST Rules requires on a GST tax invoice, with notes on HSN codes, serial numbers and unregistered buyers.
Do you need GST registration? The turnover limits, explained
When a shop must register for GST: the turnover limits for goods and services, special-category states, and when you must register anyway.
Running several GST registrations from one login
When a business needs more than one GSTIN, what has to stay separate for each — and how to keep it manageable.
Browse by topic
- GST & compliance Registration, invoices, tax heads and the rules behind them.
- Billing & invoicing Invoice numbers, quotations and sending bills.
- Khata & payments Credit, udhaar and getting paid on time.
- Inventory Pricing, stock and knowing when to reorder.
- Running a shop The day-to-day of running a counter.
- Billyng guides Step-by-step help with Billyng itself.
Ready to simplify your billing?
GST worked out for you, a khata for every customer, and stock that counts itself — even offline.