Q1 : What changed on 22 September 2025 and who is affected by the GST exemption?

A: On 22nd September 2025, the Government exempted various goods from GST, making their GST rate 0%. For example, lifesaving drugs, school and office supplies like pencils, sharpeners, crayons, exercise books, erasers, maps, charts, and globes became fully GST-free. If you are a registered GST supplier (trader, distributor, manufacturer) dealing in any goods that became wholly exempt on that date, this change affects you.

In practical terms, your outward sales of these goods will no longer carry GST, and thus you cannot utilize ITC on inputs related to those exempt supplies. Such businesses must undertake a one-time mandatory ITC reversal for the stock and capital goods related to the now-exempt items.

Q2 : Why do I need to reverse ITC when my goods become exempt?

A: Under GST law, ITC is only allowed for taxable outputs When your output supply becomes exempt, any ITC you had claimed for inputs and capital goods used in that supply must be given up (reversed). Section 18(4) of the Central GST Act explicitly provides that if a registered person’s goods or services “become wholly exempt,” they must pay back the input tax credit on (i) inputs held in stock (including inputs in semi-finished or finished goods) and (ii) capital goods (adjusted for usage) as of the day before the exemption.

In simpler terms, if your output supply is now 0% GST, you must reverse all ITC originally availed on those items. This ensures the ITC benefit was only used for business activities that were taxable, not for exempt sales. Any balance ITC left after such reversal will lapse and cannot be used further.

Q3 : Why do I need to reverse ITC when my goods become exempt?

A: All registered persons holding stock of the now-exempt goods (as on 21 September 2025, the day before the exemption took effect) must reverse the ITC related to those goods. This includes:

• Manufacturers who have raw materials, work-in-progress (WIP), or finished goods that became exempt (they must reverse credit on inputs and materials in WIP/finished stock, as well as on machinery used for these products).
• Traders/Distributors/Wholesalers who have unsold stock-in-trade of the exempted goods (they need to reverse the ITC on the purchase of that stock).
• Retailers holding inventory of the exempt items (even if the amounts are smaller, they are still required to comply).
• Service providers if any service became exempt (notably, individual life and health insurance premiums were exempted – those service providers must reverse ITC on any inputs or capital goods used exclusively for the now exempt service).

In summary, any GST-registered person who had availed ITC on inputs/capital goods for supplies that are now wholly exempt must undertake the reversal. If only part of your business became exempt (while other supplies remain taxable), you only reverse ITC attributable to the exempt portion – Section 18(4) applies to that exempt segment, and you would apportion credit accordingly (using GST apportionment rules under Section 17 and Rule 42 for mixed supplies).

Q4 : What does Section 18(4) of the CGST Act require in this situation?

A: Section 18(4) of the CGST Act, 2017 is the legal trigger for ITC reversal in special cases. It states that if a registered person opts for the Composition Scheme or if their supplies become wholly exempt, they “shall pay an amount, by way of debit in the electronic credit ledger or electronic cash ledger, equivalent to the credit of input tax” on all stock (inputs, semi-finished, and finished goods) and capital goods on hand before the change.

In plain terms, you must refund the government the ITC you had originally claimed for those goods. The payment can be made by utilizing any ITC balance you have (by debiting your credit ledger) or by cash if needed. After you pay this amount, any remaining ITC balance related to those goods is forfeited (it will lapse). This is a one-time adjustment mandated by law to ensure no ITC is retained for exempt supplies.

Q5 : How do I calculate the amount of ITC to be reversed (Rule 44 methodology)?

A: Rule 44 of the CGST Rules, 2017 lays down the procedure to calculate ITC reversal under Section 18(4). The calculation covers several categories, and each must be dealt with separately for accuracy and compliance.

Here’s how to compute the reversal amount for each category of goods/assets, as of 21 September 2025 (the day before exemption):

• Inputs in stock (raw materials or trading stock): Identify all inputs or merchandise you have in stock that relate to the now-exempt goods. Calculate the proportion of ITC to reverse based on the purchase invoices for those goods. For example, if you purchased goods with ₹1,20,000 GST in total and 25% of that stock is unsold as on 21 Sep 2025, you would reverse 25% of ₹1,20,000, i.e. ₹30,000.

Essentially, for each batch of stock, take the GST credit you originally took and multiply by the fraction remaining unsold (or unused) to find the reversible ITC. This applies equally to inputs contained in semi-finished (WIP) or finished goods – you must account for the credit on any inputs that are still in your production process or finished inventory as of the cutoff date.

(Tip: Use your bills of materials or ingredient lists to determine how much input went into WIP/finished goods and the ITC on those.)

• Capital goods used for these supplies: If you have capital assets (e.g. machinery, equipment) that were used in producing or handling the now-exempt goods and you had claimed ITC on those assets, you must reverse a portion of that ITC reflecting the remaining life of the asset.

Rule 44 assumes 5 years (60 months) of useful life for any capital good. Calculate how many months of useful life were left as on 21 Sep 2025, and take that proportion of the ITC. For instance, if a machine was bought 3 years ago (36 months used) and had ₹6,00,000 of ITC claimed, it has 24 months of its 60-month life remaining. You would reverse 24/60 of the ITC = ₹2,40,000. Do this for each capital item related to the exempt supplies.

(Note: If a capital good was partially used for taxable and partially for exempt supplies, only reverse the portion attributable to exempt use.)

• If invoices are not available: In cases where you cannot find the purchase invoice for certain stock (perhaps old stock) to know the exact GST paid, Rule 44 allows use of the prevailing market price of the goods on the effective date of exemption.

You would estimate the value of such stock and calculate GST on that value. Importantly, you need a certificate from a Chartered Accountant (CA) or Cost Accountant certifying the market value used. This certified value acts as the basis for the ITC reversal amount for goods without invoices.

• Separate tax components: Calculate CGST and SGST (or IGST) amounts separately for the reversal. In other words, break down the total ITC to reverse into the respective tax heads as they were originally claimed. This will be needed when filling out the reversal form.

By following the above, you’ll arrive at a total ITC reversal liability. This total is essentially the sum of credit attributable to all your exempted goods in stock (including WIP/finished) plus the proportional credit for related capital goods. Rule 44’s goal is to claw back all ITC tied to now exempt supplies so that post-exemption, you carry no input credit benefit from those items.

Q6 : How and when do I perform the ITC reversal (payment and reporting)?

A: The ITC reversal amount, once calculated, must be paid to the Government and reported in the prescribed form.

Here’s the procedure to follow:

• Timing: The law expects you to reverse the ITC immediately once the goods become exempt. In practice, this means you should account for and pay the reversal in the same tax period in which the exemption took effect (September 2025). There isn’t a long grace period; guidance suggests filing the necessary form “as and when” the exemption notification is effective. Acting promptly is important to remain compliant and avoid any interest on the amount due.
• Payment of the reversal amount: The amount to be reversed becomes part of your output tax liability for that period. You can use any available ITC in your electronic credit ledger to offset this liability (essentially, you debit your ITC ledger by the reversal amount). If you don’t have enough credit balance, or prefer not to use it, you must pay the remaining amount in cash via your electronic cash ledger. The CGST Act allows the reversal payment by debiting credit or cash ledger. For example, if your total calculated reversal is ₹1,00,000 and you have ₹60,000 unused ITC in your ledger, you could use that and pay the remaining ₹40,000 in cash. Once paid, this effectively nullifies the ITC – any credit you reversed is taken out of your ledger and any excess ITC that was not reversed is now frozen (lapsed).
• Reporting via Form GST ITC-03: After paying, you must file Form GST ITC-03 to formally declare the ITC reversal (see next question for details on the form). Filing ITC-03 is mandatory for events under Section 18(4) – this form is where you report the details of the inputs and capital goods and the amounts of ITC reversed. The form should be filed on the GST portal for the tax period of the change. Once you successfully file ITC-03, the GST system records the ITC reversal. Any ITC balance remaining that cannot be attributed to other taxable business will automatically lapse after this, meaning you won’t be able to use it in future.

In summary, the process is: calculate the ITC to reverse, add that amount to your GST liability, use credit/cash to pay it off, and submit Form ITC-03 to complete the compliance. It’s advisable to do all this before filing your GST returns for September 2025 so that everything is accounted for properly.

Q7 : What is Form GST ITC-03 and how do I fill it for this exemption?

A: Form GST ITC-03 is the official form for declaring ITC reversals under special circumstances (specifically, when switching to composition scheme or when goods/services become exempt). Since your case is goods becoming exempt (Section 18(4) event), you will use option 4(b) on Form ITC-03 (the option labeled “Goods or services were exempted”). This form is filed online on the GST portal. Here’s what you need to know about ITC-03:

• Details to provide: When filling ITC-03, you’ll enter the effective date from which exemption applies (22/09/2025 in this case). Then, you will list all relevant goods in two sections – one for goods with invoices and one for goods without invoices. For each item (or batch of items), provide details such as description, HSN code, quantity, and the taxable value. If you have the purchase invoice, you’ll also enter the invoice number/date, original taxable value and tax paid. The form will compute the ITC amount to be reversed for each line. For items without an invoice, you will enter the market value (as of 22/09/2025) and the form will calculate the notional tax on that value.
• Capital goods: There is a section in ITC-03 to declare capital goods. You will need to input details like the description/HSN of the asset, original purchase details, the total ITC taken on it, and the ITC being reversed (as per your remaining life calculation). The system may not automatically calculate this, so you should compute it beforehand (e.g. using the 5-year rule) and enter the amount of ITC to reverse for each capital asset.
• CA certificate: If you declared any goods based on market value (due to missing invoices), the form requires you to upload a CA/CMA certificate attesting the correctness of the values used. You’ll provide the name, membership number, and firm details of the accountant in the form and attach the certificate file.
• Payment details: ITC-03 will also show an “Amount of ITC payable” section where it summarizes your total reversal liability. You will see how much you’ve paid through ITC versus cash. Ensure that before submission, you have offset the full amount (the form allows you to edit how much of the liability is met through available ITC and how much by cash, if needed). After verifying the amounts, you will submit the form.
• Filing: Finally, sign the form with your DSC or EVC (digital signature or OTP verification) and file it. Once filed, Form ITC-03 serves as evidence that you have reversed the specified ITC. The GST portal will update your electronic credit ledger and cash ledger to reflect the debits (this is essentially the official record that your ITC has been reversed as required).

Filing ITC-03 correctly is crucial. It not only formalizes your compliance but also protects you in case of any future scrutiny by showing you followed due procedure. After filing, keep a copy of the filed form and the acknowledgement (ARN) for your records.

Q8 : What documentation should I maintain to support the ITC reversal?

A: Proper documentation is key to build trust with tax authorities and to substantiate your reversal calculations in case of an audit. Make sure to maintain the following:

• Inventory records as of the eve of exemption: Do a detailed stock count dated 21 September 2025. Keep a list of all items (raw materials, WIP, finished goods, trading stock) that became exempt, along with quantities and their values. This inventory snapshot is the basis for your ITC computation.
• Purchase invoices: Preserve copies of all purchase invoices for the inputs/stock in question. These invoices show the GST originally paid (ITC availed) for each item or batch. They will support how you calculated the proportionate ITC to reverse for stock and WIP.
• Computation worksheets: Keep the calculations and working sheets you used to arrive at the ITC reversal amounts. This includes how you apportioned credit for partially used stock, how you calculated remaining life for capital goods, and any assumptions made. If you prepared an Excel or report enumerating each item and the ITC reversed, keep that on file.
• CA/CMA certification: If you used market value for any goods (due to missing invoices), retain the certificate from the Chartered Accountant or Cost Accountant who certified the valuation. This document should detail the methodology and values used to estimate the market price of the stock and the corresponding GST amount.
• Form ITC-03 acknowledgement: After filing, save a copy of the filed Form GST ITC-03 and the ARN confirmation you receive. This is proof that you declared and paid the reversal. It’s also wise to keep a printout of the ITC-03 form detailing the goods and amounts, as it neatly summarizes what you’ve reversed.

Under GST regulations, records are typically to be kept for 6 years (72 months from the end of the financial year of the transaction). However, a best practice is to keep these ITC-03 related documents for up to 8 years, since the reversal pertains to a specific event that tax officers might inquire about even several years later. By maintaining thorough documentation, you ensure transparency and can readily answer any queries, thereby reinforcing trust in your compliance.

Q9 : Is ITC reversal needed for any GST rate change or only for full exemptions?

A: The ITC reversal mandate applies only when a supply becomes wholly exempt (tax rate effectively 0%). It does not apply to mere rate reductions. For instance, if the GST rate on a product was reduced from 18% to 5% (as part of the same 22 Sep 2025 reforms), that product is still taxable (at 5%), not exempt. In such cases, Section 18(4) is not triggered and you do not need to reverse ITC. The law’s critical phrase is “becomes wholly exempt” – a reduced rate isn’t an exemption, so you continue to be eligible for ITC on those supplies because they remain taxable (albeit at a lower rate).

In summary, no ITC reversal is required for a rate cut; reversal is required only if the goods/services go completely out of GST tax scope (0% rate or exempted by notification). For mixed scenarios, if a portion of your output is exempt and another portion is taxable at a reduced rate, you reverse ITC only for the exempt portion and continue normal ITC usage for the taxed portion.