GST & Invoicing Guides
Practical, CA-reviewed answers to real GST and invoicing questions for Indian small businesses.
B2B vs B2C Invoice Under GST: What's the Difference?
The difference between B2B and B2C invoices under GST — GSTIN requirements, input tax credit, how each is reported in GSTR-1, and the B2CL vs B2CS split for consumer sales.
3 July 2026Bill of Supply Format for the Composition Scheme
What a bill of supply is, who must issue one (composition dealers and exempt suppliers), how it differs from a tax invoice, the mandatory declaration, and a compliant format.
3 July 2026Bill Book Format for a Small Shop (With & Without GST)
How to set up a bill book for a small shop or kirana store — what a simple bill needs, GST vs non-GST bills, cash memo vs tax invoice, and how to move from paper to a free digital tool.
3 July 2026Delivery Challan vs Invoice Under GST
When to use a delivery challan instead of a tax invoice — job work, goods sent on approval, transport without supply, what a challan must contain, and how it works with the e-way bill.
3 July 2026Credit Note & Debit Note Format Under GST
When to issue a credit note or debit note under GST, what each must contain, the time limit for credit notes, how they adjust your tax liability, and how they are reported in GSTR-1.
3 July 2026Invoice Format for Freelancers in India (With & Without GST)
How freelancers in India should invoice clients — when GST applies, SAC codes for common services, invoicing foreign clients as export of services under LUT, TDS, and a clean format.
3 July 2026GST Bill Kaise Banaye — Step by Step Guide (2026)
GST bill kaise banaye — asaan step-by-step guide. Tax invoice ke zaroori fields, CGST/SGST/IGST ka calculation, HSN code, aur free tool se sirf ek minute mein GST bill banaye.
3 July 2026Export Invoice Under GST With LUT (Zero-Rated Supply)
How to raise an export invoice under GST — zero-rated supplies, exporting with an LUT (without paying IGST) vs with payment and refund, mandatory invoice endorsements, and currency.
3 July 2026E-Invoice Limit & Applicability Under GST (2026)
Who must generate e-invoices under GST — the turnover threshold, how the IRP, IRN and QR code work, who is exempt, and how e-invoicing differs from a normal invoice and the e-way bill.
3 July 2026GST Invoice Number Rules: Format, Series & Common Mistakes
The rules for invoice numbers under GST — the 16-character limit, financial-year-wise serial numbering, allowed characters, multiple series, and mistakes that trigger scrutiny.
3 July 2026GST on Advance Payments & the Receipt Voucher
How GST applies to advances received — the rule for services vs goods, the receipt voucher and refund voucher, how to adjust the advance against the final invoice, and reporting.
3 July 2026HSN Code Mandatory Rules: 4-Digit vs 6-Digit on Invoices
When HSN codes are mandatory on GST invoices — the turnover-based 4-digit and 6-digit rules, B2B vs B2C, HSN reporting in GSTR-1, and penalties for wrong or missing codes.
3 July 2026How to File GSTR-1 From Your Invoices (Step by Step)
A step-by-step guide to filing GSTR-1 from your sales invoices — what GSTR-1 is, its due dates, the B2B/B2CL/B2CS/CDNR/HSN sections, and how to prepare the data accurately.
3 July 2026Can You Issue an Invoice Without a GSTIN?
Whether you can issue an invoice without a GSTIN, what an unregistered business must put on its bill, and why you must never charge GST without registration.
3 July 2026GST Rates & Slabs in India (2026)
An overview of the GST rate slabs in India for 2026 — the main slabs, special rates on gold and precious stones, exempt goods, compensation cess, and how to find the rate for your product.
3 July 2026Labour Charges Invoice Format & SAC Code Under GST
How to invoice labour charges under GST — the correct SAC code for pure labour, manpower supply and job work, the applicable GST rate, reverse charge, and a compliant format.
3 July 2026Proforma Invoice vs Tax Invoice: What's the Difference?
Proforma invoice vs tax invoice under GST — what each document means, when to issue which, whether GST applies, and why the difference matters for your books.
3 July 2026Quotation vs Invoice: What's the Difference?
The difference between a quotation and an invoice — purpose, legal and GST status, when to issue each, and how a quote turns into a proforma and then a tax invoice.
3 July 2026Rent Invoice Format with GST: A Guide for Landlords
How to raise a GST-compliant rent invoice for commercial and residential property — the SAC code, when 18% GST applies, reverse charge on residential rent, TDS, and a free template.
3 July 2026Reverse Charge (RCM) & Self-Invoice Rules Under GST
How the reverse charge mechanism works under GST — when the recipient pays tax, the self-invoice and payment voucher requirements, common RCM supplies, and how to claim ITC.
3 July 2026SAC Code vs HSN Code: What's the Difference?
The difference between HSN and SAC codes under GST — HSN for goods, SAC for services, their structure, when each is mandatory on invoices, and how to find the right one.
3 July 2026Adding a UPI QR Code to Your Invoice
Why and how to put a UPI QR code on your invoice — faster payments, the dynamic QR requirement for large B2C sellers, how it differs from the e-invoice QR, and how to add one free.
3 July 2026Time Limit for Issuing a Tax Invoice Under GST
The GST time limits for issuing a tax invoice — the rules for goods vs services, the 30-day (and 45-day) service window, continuous supply, and why timing matters for the time of supply.
3 July 2026Transport Invoice Format & GST Under Reverse Charge (RCM)
How transport invoices work under GST — Goods Transport Agency (GTA) rules, the 5% vs 12% choice, reverse charge, the consignment note, SAC codes, and who actually pays the tax.
3 July 2026