Learn GST & E-Invoicing
Guides, rules, and best practices for Indian businesses. Stay compliant and grow with confidence.
Reference
GST glossary (India) A–Z
84 GST terms explained — CGST, ITC, GSTR-3B, e-invoice, RCM, and more. Each term links to free calculators and tools where helpful.
Can I Create Invoices in Word or Excel? Drawbacks & Alternatives
Yes — but you cannot track invoice status or payments. See drawbacks of Word/Excel invoicing and why platforms like Invoism are better.
Read guideWhat Are the Three Types of Invoices Under GST?
Tax Invoice, Bill of Supply, and Receipt Voucher — when to use each type of invoice under GST in India.
Read guideWhat is 3-Way Matching in Invoicing?
3-way matching compares PO, GRN, and supplier invoice before payment. Process, benefits, and why it matters for GST and ITC in India.
Read guideHow to Generate GST Compliant Invoices for Small Businesses in India
Step-by-step guide to creating GST compliant invoices. Mandatory fields, B2B vs B2C, e-invoicing rules, and best practices for Indian SMEs.
Read guideHSN & SAC Codes in GST: Goods vs Services (India)
HSN (Harmonized System of Nomenclature) for goods and SAC (Services Accounting Code) for services — differences, invoice rules, and how to look up codes.
Read guideCGST, SGST & IGST Explained: Intrastate vs Interstate, Imports & Exports
How dual GST works in India: CGST and SGST on intrastate supplies, IGST on interstate and imports, exports as zero-rated, with calculation examples.
Read guideOld vs New Tax Regime: Difference, Slabs & Which to Choose
Complete guide to old regime vs new regime income tax. Tax slabs, deductions, rebate 87A, standard deduction, and when to choose which. FY 2024-25.
Read guideIRN, E-Invoice Penalty & How to Avoid It
What is IRN? Penalty for non-generation of IRN, mandatory e-invoices, IRN time limit, and how to avoid penalty. Complete guide for Indian businesses.
Read guideBenefits of Voluntary E-Invoicing for Businesses Below ₹5 Crore
Is there any benefit in opting for e-invoicing voluntarily when your turnover is below the mandatory threshold? Yes — faster ITC for buyers, fewer errors, and readiness for growth.
Read guideGSTR-3B Filing: Common Mistakes to Avoid
Learn about the most common errors in GSTR-3B filing and how to prevent them.
Read guideReady to simplify GST invoicing?
Try our free GST tools or sign up for Invoism to create compliant invoices with e-invoice support.