01/04/2026
1. Reset Your Invoice Numbering
Per GST rules, you should start a new invoice series at the beginning of the financial year. This helps in clear record-keeping and prevents confusion during audits.
The Format: You can start back at 001, but it's best to include the year to make it unique.
Examples: * 2026-27/001
GST/26-27/01
INV/APR/001
The Rule: Your invoice numbers must be consecutive and cannot exceed 16 characters.
2. Update Your Physical or Digital Bill Book
Whether you use software or a physical book, ensure the following details are updated and clearly visible:
GSTIN: Your 15-digit Goods and Services Tax Identification Number.
Place of Supply: Crucial for determining if you charge CGST/SGST or IGST.
HSN/SAC Codes: Ensure these are updated according to the latest government mandates for your turnover bracket.
Signature/Stamp Area: Ensure there is a designated spot for authorized signatures.
3. Essential Columns for Your New Ledger
If you are designing a new template, make sure these columns are present to avoid manual errors later:
