GST Rate Cut from 18% to 5%: ITC Reversal Under Section 18(4)

By Prajwal Magaji

|

Updated on: Sep 18th, 2025

|

4 min read

The GST 2.0 reforms, effective from September 22, 2025, bring substantial changes to the tax rates on goods and services across India. This article addresses the GST rate cuts, particularly the reduction of rates from 12% to 5% and 28% to 18%, and explores the related compliance considerations under Section 18(4) of the CGST Act concerning input tax credit (ITC) reversal.

Key Takeaways

  • Section 18(4) requires ITC reversal only if goods or services become tax-exempt or if the business switches to the composition scheme.
  • GST rate cuts, such as from 12% to 5%, do not trigger ITC reversal as long as goods or services remain taxable.
  • Continue using your ITC normally for taxable supplies. Only reverse ITC if some supplies become exempt.
  • Keep clear records, and check for new transitional rules or exemptions in the future

Understanding GST Rate Reduction

India’s GST rate changes in 2025 have been major and wide-reaching:

  • Starting September 22, 2025, the GST Council reduced the number of tax slabs from four to two main rates: 5% merit rate for essential and priority items and 18% standard rate for most other goods and services. There is also a special 40% rate for luxury and sin goods.
  • Most products previously taxed at 12% now fall under the 5% slab. Everyday items, processed foods, and farm equipment are now cheaper for everyone.
  • High-value items, like cars, electronics, and electrical appliances, have seen a drop from 28% to 18% GST.
  • Luxury and “sin” items such as pan masala, tobacco products, and aerated drinks are now taxed at the much higher 40% rate. (Except that the new rate on tobacco would apply at a later notified date after the compensation cess liability is duly cleared)

Key facts:

  • The new rates make essentials more affordable and aim to boost both household budgets and business growth.
  • Goods and services still remain taxable even after the rate cut. This means businesses can continue to use ITC for these goods and services.
  • ITC on inputs claimed when output goods were taxed at higher rates (12% or 28%) can still be used now, even though outputs are taxed at new, lower rates.

Section 18(4) of the CGST Act - Explained

ITC reversal under Section 18(4) of the CGST Act is a requirement to reverse input tax credit on inputs, semi-finished goods, and capital goods whenever:

  • Supplies become wholly exempt from GST, or
  • The taxpayer transitions from the regular GST scheme to the Composition Scheme.

ITC reversal is not required for a mere drop in rate. The provision focuses on exemptions, not slab changes.

Businesses need only reverse ITC when the goods or services become completely exempt, or they migrate to composition. Rate reduction alone does not trigger reversal.

ITC Reversal in Case of Rate Changes

For a GST rate reduction in 2025, the following rules apply:

Scenario

GST Implication

Example

Supply becomes exempt post rate change

ITC must be reversed as per Section 18(4)

Items purchased at 5% later becomes exempt reverse ITC on such items.

Rate reduction on outputs, or 
Rate increase on inputs

No ITC reversal; continue claiming ITC; refund possible under inverted duty structure if output supply is not the same as input supply.
Circular No.135/05/2020

Suppose goods are bought at 18% before the rate cut, and sold at 5% GST after the rate cut.In such cases, the ITC claim continues without reversal. Can claim refund on accumulated ITC provided output is not the same as input.

Input used for both taxable and exempt supplies

Common credit rules apply; ITC to be apportioned and exempt portion reversed as per Rules 42 and 43

Inputs partly used for supplies that became exempt due to the rate change; common credit rules mandate apportioning ITC, with reversal of the portion attributable to exempt supplies.

ITC Reversal Decision Guide

Scenario

GST Implication

ITC Reversal Needed?

Rate cut from 18%/12% to 5%

Supply still taxable

No

Rate cut from 28% to 18%

Supply still taxable

No

Supply becomes wholly exempt

Output tax is zero

Yes

Transitional Provisions for Businesses

Transitional compliance measures for the 2025 GST rate change include:

  • Continue claiming input tax credit (ITC) on supplies that shift from a higher GST rate to a lower rate as long as they remain taxable.
  • Reverse ITC on supplies that become exempt from GST post the rate change, in proportion to the value of exempt supplies as per GST rules.
  • Businesses should regularly check their inventory and the GST input credits they have claimed, especially if new tax exemptions for certain sectors are announced.
  • Maintain complete documentation for rate transitions, eligible ITC, and reconciliations.

Official notifications and GST Council meeting notes make it clear: just lowering the GST rate doesn't mean businesses have to reverse input tax credits. However, if a business's products or services become completely tax-exempt, then input tax credits must be reversed as per GST rules.

Read more:
GST Revamp: Full List of New GST Rate Cheaper and Costlier Items

Frequently Asked Questions

Does the GST rate cut from 18% to 5% require ITC reversal?

No. As long as goods/services remain taxable, ITC can continue.

When is ITC reversal mandatory under Section 18(4)?

Only if the supply becomes exempt or if the taxpayer opts for the composition scheme.

Should businesses track closing stock and ITC after a rate cut?

Yes, especially if future rules exempt products or services; always keep records for reconciliation.

How is ITC reversal calculated for exempted goods?

Proportionate value as per Rule 44 based on closing inventory, with filings via ITC-03

About the Author
author-img

Prajwal Magaji

Content Writer
social icons

Aspiring Chartered Accountant with 3+ years of hands-on experience in income tax and GST. Having handled everything from the likes of return filings to tax assessments. I'm now bringing that experience into the world of content writing, aiming to make tax less intimidating and more engaging. Read more

Clear offers taxation & financial solutions to individuals, businesses, organizations & chartered accountants in India. Clear serves 1.5+ Million happy customers, 20000+ CAs & tax experts & 10000+ businesses across India.

Efiling Income Tax Returns(ITR) is made easy with Clear platform. Just upload your form 16, claim your deductions and get your acknowledgment number online. You can efile income tax return on your income from salary, house property, capital gains, business & profession and income from other sources. Further you can also file TDS returns, generate Form-16, use our Tax Calculator software, claim HRA, check refund status and generate rent receipts for Income Tax Filing.

CAs, experts and businesses can get GST ready with Clear GST software & certification course. Our GST Software helps CAs, tax experts & business to manage returns & invoices in an easy manner. Our Goods & Services Tax course includes tutorial videos, guides and expert assistance to help you in mastering Goods and Services Tax. Clear can also help you in getting your business registered for Goods & Services Tax Law.

Save taxes with Clear by investing in tax saving mutual funds (ELSS) online. Our experts suggest the best funds and you can get high returns by investing directly or through SIP. Download Black by ClearTax App to file returns from your mobile phone.

Office Address - Defmacro Software Private Limited, C 245A, Ground floor, Room No 1, Vikas Puri, West Delhi, New Delhi, Delhi 110018, India

Cleartax is a product by Defmacro Software Pvt. Ltd.

Privacy PolicyTerms of use

ISO

ISO 27001

Data Center

SSL

SSL Certified Site

128-bit encryption