E Invoice generation time limit

I'll guide you through the process. E-Invoicing Requirements As your firm's annual turnover crossed ₹5 crores on March 31, 2024, you were required to generate e-invoices from April 1, 2024.

 Rectification Process Since you didn't generate e-invoices for the past 9 months, you'll need to follow these steps:

 1. *Generate e-invoices for past transactions*: You can generate e-invoices for the past 9 months through the IRP (Invoice Registration Portal) or through a GST Suvidha Provider (GSP).

However, these e-invoices will be considered as "late-generated" invoices.

2. *Report these invoices in GSTR-1*: You'll need to report these late-generated e-invoices in your GSTR-1 return for the respective months.

Ensure you report them under the correct table and section.

3. *Pay applicable penalty and interest*: As you've failed to generate e-invoices within the prescribed timeframe, you may be liable for penalties and interest. You'll need to calculate and pay these amounts.

4. *File a petition for condonation of delay*: You can file a petition with the jurisdictional tax officer, explaining the reasons for the delay in generating e-invoices.

 The tax officer may condone the delay, but this is not guaranteed. Important Points

1. *Late-generated invoices*: These invoices will be considered valid for input tax credit (ITC) purposes, but you may face penalties and interest for late generation.

 2. *GSTR-1 amendments*: Ensure you amend your GSTR-1 returns for the respective months to reflect the correct e-invoice details.

3. *Consult a tax professional*: It's recommended to consult a tax professional or GST expert to ensure you comply with all the requirements and follow the correct procedure. Please note that the tax authorities may take a lenient view if you rectify the issue promptly and pay any applicable penalties and interest.

However, this is not guaranteed, and you should be prepared for any consequences.

The 30-day time limit for generating the IRN is enforced on the portal from May 1, 2023 onwards for businesses in the relevant turnover bracket. If the 30 days have passed, the portal will reject the IRN request and you cannot generate one for that invoice. For invoices where the window has closed, the standard practice is to cancel the original invoice, reissue a fresh invoice with a new date, and generate the IRN within 30 days of the new invoice date. Your buyer would need to use the new invoice number for their ITC claim. If the amounts and parties are the same, the credit note and debit note route is another option to resolve the mismatch in your GSTR-1.

The 30-day window for IRN generation is enforced strictly on the GST portal. Once you cross the Rs 5 crore threshold, e-invoice becomes mandatory going forward, and the portal will reject IRN requests for any invoice dated more than 30 days ago. For invoices already beyond that window, the practical approach depends on whether the buyer has already booked the input: if they have, issuing a fresh invoice and cancelling the old one is the common workaround, though it needs to be done carefully to avoid mismatch in the buyer GSTR-2B. If the invoices are recent and within the current financial year, a CA can advise on the least disruptive correction path. This [e-invoice compliance guide for 2026](https://taxgarden.in/blog/e-invoice-mandatory-5-crore-businesses-2026) has the threshold dates, the 30-day rule, and what to do when you miss the window.