The Goods and Services Tax (GST) system in India is continuously evolving to increase transparency and improve compliance. One of the significant updates planned from May 2025 is the separate reporting of B2B (Business-to-Business) and B2C (Business-to-Consumer) supplies in Table 12 of the GSTR-1 return.

This blog provides a thorough explanation of this update, its impact on taxpayers, how to prepare for it, and the latest official information on the matter.

What is GSTR-1 and What Does Table 12 Currently Capture?

• GSTR-1 is a monthly or quarterly return that registered taxpayers file to report their outward supplies.
• The return is divided into multiple tables based on the type of supply.
• Table 12 of GSTR-1 currently captures the summary of B2C supplies made to unregistered persons (consumers), mainly in the form of consolidated value by state and tax rate.

At present, B2B supplies (supplies to registered persons) are reported invoice-wise in Table 4 of GSTR-1.

What is the Upcoming Change Effective May 2025?

From May 2025 onwards, taxpayers will have to separately report B2B and B2C supplies in Table 12 of GSTR-1, even though this table previously focused primarily on B2C supplies.

Key Points of the Change:

• Table 12 will now include distinct summary-level reporting of both B2B and B2C supplies.
• This change adds granularity to data collection, helping authorities perform better reconciliation.
• It is a step towards harmonizing outward supply data reported in GSTR-1 with inward supplies declared by recipients in GSTR-2B/2A.

Why Has This Change Been Introduced?

• Improve Data Accuracy: Better segregation helps track supplies accurately.
• Simplify Reconciliation: It reduces mismatches between outward and inward supplies reported.
• Ease Audit and Compliance: Authorities can analyze supply patterns more efficiently.
• Streamline Reporting Processes: Businesses can better organize their data submission.

Implications for Taxpayers

1. Enhanced Reporting Requirements

• Taxpayers need to segregate and report B2B and B2C supplies separately in Table 12.
• This requires detailed data collection and validation.

2. System & Software Upgrades

• ERP, billing, and accounting software will need updates to generate reports compliant with the new format.
• Taxpayers using third-party GST filing software should confirm readiness for this change.

3. Operational Adjustments

• Finance and compliance teams must adjust internal processes to segregate customers based on GST registration status.
• Data accuracy becomes even more critical.

4. Training & Awareness

• Staff responsible for GST filing should be trained on the revised return structure and reporting rules.

How Should Taxpayers Prepare?

Step 1: Customer Classification

• Maintain an updated database of customers with their GSTIN status (registered/unregistered).
• Review and verify GSTINs regularly.

Step 2: Update Accounting and Billing Software

• Coordinate with software vendors to ensure your system supports the new Table 12 reporting format.
• Test report generation before May 2025.

Step 3: Data Reconciliation

• Regularly reconcile sales invoices with customer classifications.
• Cross-verify supplies to ensure correct segregation of B2B and B2C.

Step 4: Internal Controls

• Implement checks to avoid misclassification.
• Ensure documentation is maintained to support reported figures.

Step 5: Monitor Official Notifications

• Keep track of updates from the GST Council and CBIC to stay informed about any changes or clarifications.

Frequently Asked Questions (FAQs)

Q1. Will this change affect my tax payment schedule?
No, tax payment schedules remain unchanged. This is a reporting enhancement.

Q2. Does this mean I have to report invoice-level details for B2B in Table 12?
No, B2B invoice-level details continue in Table 4. Table 12 reports summarized data.

Q3. Will the portal provide new templates or formats for filing?
The GST portal is expected to update the return filing interface and templates before May 2025.

Q4. Are Composition taxpayers impacted?
Composition taxpayers have different reporting norms and may not be impacted similarly.

Latest Official Updates (As of May 2025)

• The GST Council has approved the update for separate B2B & B2C reporting in Table 12 from May 2025.
• The CBIC has notified the changes and is coordinating with software providers for smooth implementation.
• Taxpayer communication campaigns are planned to increase awareness.
• No changes have been announced to due dates or penalties associated with this update.

Note: Taxpayers should regularly check the GST Portal and official CBIC notifications for the latest circulars and FAQs.

Conclusion

The separate B2B and B2C reporting in Table 12 of GSTR-1 from May 2025 is an important step to improve the accuracy and transparency of GST returns. While it adds some reporting complexity, proper preparation can ensure smooth compliance.

Taxpayers should start classifying customers correctly, upgrade software systems, and train staff now to avoid last-minute challenges.

By proactively adapting to this change, businesses can ensure seamless GST filing and reduce the risk of discrepancies and compliance issues.

Introduction to GSTR-1A

GSTR-1A was once introduced as a way for taxpayers (suppliers) to correct mistakes in the sales (outward supply) data they reported in their GSTR-1 returns. GSTR-1A would give suppliers a chance to accept or reject changes suggested by their buyers based on the inward supply details the buyers had filed in GSTR-2.

However, the GST Council has deferred the use of GSTR-1A, and the process now revolves around using GSTR-1 and GSTR-2A to manage sales and purchase data. Despite this, understanding GSTR-1A still provides valuable context for correcting errors and reconciling GST returns.

Let’s dive into what GSTR-1A was meant to do, why it was important, and how you can handle corrections now in the current GST setup.

What Exactly is GSTR-1A?

GSTR-1A was designed as a rectification return. It allowed businesses to fix any errors in their outward supply return (GSTR-1) based on feedback or changes suggested by the recipient of goods or services. This feedback came from GSTR-2, the return filed by buyers (recipients) showing their purchases.

Here’s how the process was supposed to work:–

GSTR-1 Filed by Supplier: The supplier files GSTR-1 to report details of sales (outward supplies).
GSTR-2 Filed by Recipient: The buyer files GSTR-2 to report their purchases (inward supplies), which could include corrections to what the supplier initially reported.
GSTR-1A Generated: The supplier gets a GSTR-1A return, which reflects any corrections suggested by the buyer.
Supplier Accepts or Rejects Changes: The supplier reviews the suggested changes in GSTR-1A and either accepts or rejects them.

Once the supplier made the necessary corrections, the updated information would reflect in their next GSTR-1 return.

Why Was GSTR-1A Important?

In a perfect GST system, both the buyer and the seller should agree on the invoice details—whether it’s for the amount, tax, or the goods/services supplied. Sometimes, mistakes happen, like:-

a. Typing errors in invoice numbers.
b. Incorrect GSTIN (GST Identification Number).
c. Wrong taxable value or tax amounts.

GSTR-1A was intended to help suppliers correct these mistakes, ensuring that the buyer’s input tax credit (ITC) matched the supplier’s sales data. This process aimed to reduce mismatches between what was reported by the seller and what was claimed by the buyer.

The Deferral of GSTR-1A

Due to operational complexities, the GST Council decided to defer GSTR-1A, along with GSTR-2, which was used by buyers to correct their purchases. So, what does this mean for you now?

Although GSTR-1A is no longer used, you can still correct mistakes in your GSTR-1 through amendments in subsequent returns. These corrections ensure that your sales data is accurate and aligned with what your buyers are reporting in GSTR-2A, which is the auto-generated return reflecting all the purchases they’ve made from you.

How to Correct Mistakes in GSTR-1 Now

If you’ve made an error in GSTR-1, you don’t need to worry! You can correct it in the next GSTR-1 by following the process for amendments. Here’s how you can do it:

Step 1: Identify the Error

Before making any corrections, identify the type of mistake in your original GSTR-1:

• Incorrect invoice details (GSTIN, invoice number, taxable value, etc.).
• Missing or incorrect debit/credit notes.
• Errors in B2C or export transactions.

Step 2: Correct the Mistake in Next GSTR-1

In your next GSTR-1, go to the appropriate table to make the amendment:

• Table 9A: Correct B2B invoices (if you’ve issued incorrect invoices to businesses).
• Table 9B: Amend debit or credit notes.
• Table 9C: Make corrections to export invoices.

Step 3: Pay Additional Tax, If Necessary

If the correction increases your taxable turnover, you’ll need to report this in GSTR-3B and pay the additional tax. Don’t forget to include interest (18% per annum) for late payment.

How Does Reconciliation Work Now?

Without GSTR-1A, businesses now rely on GSTR-2A for reconciliation. GSTR-2A is an auto-generated return that shows all the purchases reported by your suppliers in GSTR-1. Here’s how the process works today:-

1. Supplier Files GSTR-1: The supplier files GSTR-1, which contains details of all the sales made during the period.
2. Recipient Reviews GSTR-2A: The buyer can download and review GSTR-2A to check if all the purchases have been reported correctly by the supplier.
3. Discrepancy Found? Notify the Supplier: If there are any mismatches (e.g., missing invoices, incorrect values), the buyer should notify the supplier to correct it in the next GSTR-1.
4. Supplier Makes Amendments: The supplier will amend the details in their next GSTR-1 return.

Example: Correcting an Invoice in GSTR-1

Let’s assume you issued an incorrect invoice to a buyer. Instead of ₹1,00,000, you reported ₹10,000 in GSTR-1. Here’s how you can correct it:-

1. Identify the Error: You realize that you reported ₹10,000 instead of ₹1,00,000 in your original GSTR-1.
2. Amend in Next GSTR-1: In the next filing, go to Table 9A (Amendment to B2B Invoices). Enter the correct taxable value and tax for that invoice.
3. File GSTR-3B: In GSTR-3B, include the additional tax liability that arises from this correction and pay any outstanding tax with interest.

By following these steps, you can ensure that both you and the recipient are reporting the correct data, avoiding any future complications.

Best Practices to Avoid Errors in GSTR-1

1. Double-Check Your Invoices: Always verify the GSTIN, taxable value, and tax amounts before uploading your invoices in GSTR-1.
2. Reconcile Regularly: Regularly reconcile your sales data with the buyer’s purchase data (using GSTR-2A) to catch discrepancies early.
3. Use Automation: If possible, use accounting software that is GST-compliant to reduce manual errors in filing returns.
4. Communicate with Buyers: Maintain open communication with your buyers so that they can alert you about any mistakes they spot in GSTR-2A.

Final Thoughts

Although GSTR-1A has been deferred, the concept behind it-correcting errors in outward supplies-remains crucial in the GST system. Today, businesses use GSTR-1 and GSTR-2A for reconciliation and amendments.

By regularly checking your data, making timely corrections, and staying on top of your filings, you can ensure compliance and avoid potential penalties. Remember, the key to smooth GST compliance is regular reconciliation, communication with your buyers, and timely corrections through GSTR-1 amendments.

Thanks!

Any company whose turnover is more than 5 crores and has opted for monthly mode to submit its invoice, then it becomes necessary to enter the HSN/SAS code information of the goods or services in the invoice in column number 12 of GSTR-1

All information about HSN CODE columns

(a) HSN/SAC:- In this we can search the HSN / SAC code of our goods/services.

(b) Descriptions:- As soon as we select our HSN / SAC code inside it, then the description automatically comes inside it.

(c) UQC:- The Full name of UQC is unit quantity code This includes the way in which we have sold the goods, whether the goods are packed in cans, packed in bottles,

(d)Total taxable value:- In this we have to write the value of our goods, on which we have not yet added the amount of tax.

(e) Rate%:- In this, we have to write about the tax rate as much as we have levied on the goods or services.

(f) Integrated tax:- This tax is levied when goods are supplied from one state to another.

(g) Central tax:- If goods and services are supplied in the same state, SGST and CGST are charged.

(h) State tax:- If goods and services are supplied in the same state, S.G.S.T and S.G.S.T are charged.

(I) Cess:- On the tax paid by us, the government separately levies another charge on our tax, which we call cess.

This is a new column enabled by the government for monthly taxpayers, which is mandatory for all monthly taxpayers.

If we have made any mistake in this (B2B ), then we can change it by going to 9(A) business to business return file. In this, we Can change the cut-off to less than 2.5 lakh.

6A – Exports Invoices

These tables are part of GSTR-1. For this, the exporter can rewrite this file for the expert of his goods and we can claim our refund for all the goods we have exported. And it can only file a registered person

9A – Amended Exports Invoices

If we have made a mistake in table number 4A, then we have to do this table to correct it. So that we can correct our mistake

9C – Amended Credit/Debit Notes (Registered)

If we accidentally sell any goods to a registered person. Whose amount is more and we reduce it and sell it, then we issue this note to our customer (we have made a mistake in table number 4)

9C – Amended Credit/Debit Notes (Unregistered)

If we have made a mistake in the 9B unregistered person’s credit and debit notes, then for this also a separate table has been given on the portal 9C in which we can correct our notes.

7 – B2C (Others)

If the sales are less than two million fifty thousand, in the case of an unregistered person, and if the invoice business is related to the consumer, then we can enter it in this table. Table number 7 is related to unregistered a person

8A, 8B, 8C, 8D – Nil Rated Supplies

If we supply a person from it who is Nil rated or an Exempted and supplies a non-GST person, then in this case we will use this table.

11A(1), 11A(2) – Tax Liability (Advances Received)

We know that in this table. When we get an advance from someone, then we show it on the table of our portal. So that we know that we have got the advance and we will show the report in the table of GSTR-3B

11B(1), 11B(2) – Adjustment of Advances

When we add the advance to our table (11A (1) 11A (2)), we have to use this 11b (1) 11B (2) to reduce it. Meaning that when we fill this portal, then whatever happens in advance gets reduced.

12 – HSN-wise summary of outward supplies

Accordance, when the turnover of any business is more than one crore fifty lakhs. So for them, it should be filled and at the time of filing it, it is necessary to enter the code of two digits. And this turnover is up to five crores. And for other businesses whose turnover is more than five crores, they have to enter the HSN note of four digits of their business. These data are collected only for the formalities.

Government has released a new notification with all the GSTR due dates and late fine provisions updates.

We have simplified the notification and here you can find all the due dates and penalties information accordingly.

Note:- First categorize yourself in Turnover SLAB

• Turnover is more than INR 5 Crore
• Turnover is up to INR 5 Cr

GSTR 3B due dates (If turnover is up to INR 5 Crore)

For following States and Union territories

Chhattisgarh, Madhya Pradesh, Gujarat, Maharashtra, Karnataka, Goa, Kerala, Tamil Nadu, Telangana or Andhra Pradesh

Daman and Diu and Dadra and Nagar Haveli, Puducherry, Andaman and Nicobar Islands Lakshadweep

For following States and Union territories

Himachal Pradesh, Punjab, Uttarakhand, Haryana, Rajasthan, Uttar Pradesh, Bihar, Sikkim, Arunachal Pradesh, Nagaland, Manipur, Mizoram, Tripura, Meghalaya, Assam, West Bengal, Jharkhand or Odisha

Union territories of Jammu and Kashmir, Ladakh, Chandigarh and Delhi

Due dates for GSTR 1 for FY 2020