GST, explained without the jargon
Straight answers on registration, returns, credit and compliance — written for the person running the business, not for a tax practice.
Start with what you're stuck on
Twelve areas that cover almost every GST question a growing business runs into.
GST Basics
Registration, structure and the fundamentals every business needs.
Read the guide →GST Returns
Which return, filed when, and what goes in each one.
Read the guide →GST Invoicing
What a compliant tax invoice must carry, and when to issue one.
Read the guide →Input Tax Credit
How ITC works, what blocks it, and why reconciliation matters.
Read the guide →E-Invoicing
IRN, QR codes and who has to generate them.
Read the guide →E-Way Bill
When goods movement needs a bill, and how long it stays valid.
Read the guide →GST Schemes
Composition, QRMP and when a simplified scheme is worth it.
Read the guide →Time, Place & Value of Supply
The three questions that decide which tax, when, and on how much.
Read the guide →HSN & SAC Codes
Classification codes, how many digits you need, and why they matter.
Read the guide →GST Payments
The three ledgers, how set-off works, and paying the balance.
Read the guide →Penalties & Appeals
What non-compliance costs, and how the appeal route works.
Read the guide →Moving Your Books to GST Software
Getting off spreadsheets and legacy tools without losing history.
Read the guide →Calculators and lookups, free forever
Built for Indian businesses. No signup needed.
GST CalculatorSoon
Add or strip GST at any slab, inclusive or exclusive.
GSTIN ValidatorSoon
Check a GSTIN's format and checksum before you invoice.
ITC CalculatorSoon
Work out net liability after set-off, head by head.
HSN Code LookupSoon
Find the code and rate for a product description.
E-Way Bill ValiditySoon
Calculate validity from distance and cargo type.
Invoice Format TemplatesSoon
Compliant formats for retail, services and transport.
Reading about GST is one thing. Filing it is another.
BillKr builds your GSTR-1, GSTR-3B and annual summaries from the invoices you already raised, so the return is a review rather than a reconstruction.
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