Gst inoice numbering

[Vijay K]

Dear Mates,

I'm a new startup of proprietorship firm (Registered Under Service Tax / GST / Turnover 15 Lacs) and want to know is Serial Numbering on Invoice will be compulsory? like INV0001, INV0002, etc.

Because till now I was use to send based on customer's UID such as:

Customer UID: 785881
Invoice No.: INV/785881/1, etc.

So what can do? Because I'll get business if I use INV0001, etc. because then customer will be able to see I don't make business.

Looking for serious help. Thanks

AI Summary

Invoice serial numbering: numeric ascending sequence required; prefixes allowed and multiple series permitted under GST invoicing rules.
Invoices must include a serial number presented as an ascending numeric sequence; prefixes or suffixes (including a customer UID) are permitted as additional information provided the numeric sequence is maintained. Invoice numbering is subject to character-length constraints and all GST-mandated particulars must appear. Multiple invoice series for different locations or supply types are allowed, and many practitioners advise starting a new series where invoice particulars materially change, while ensuring accurate revenue reporting and statutory compliance.