Understanding Reverse Charge Mechanism (RCM) in GST: A Practical Guide

Usually, the supplier of goods or services collects GST from the buyer and deposits it with the government. This is the Forward Charge Mechanism. However, in specific cases defined by the government, this liability is reversed. Under the Reverse Charge Mechanism (RCM), the recipient (buyer) becomes liable to pay the tax directly to the government.

Failing to pay RCM can lead to interest penalties and denial of Input Tax Credit (ITC). Let's decode how RCM works in 2026.

When Does RCM Apply?

RCM is governed mainly by two sections of the CGST Act:

1. Section 9(3): Specified Goods & Services

The government has notified a specific list of goods and services where RCM is mandatory, regardless of whether the supplier is registered or not.

2. Section 9(4): Purchases from Unregistered Dealers

This applies only to specific registered persons (like real estate developers) purchasing specific goods (like cement) from unregistered suppliers.

Key Services Under RCM (Common Scenarios)

The most common services affecting small and medium businesses under RCM are:

A. Goods Transport Agency (GTA)

If a business (e.g., a factory) hires a transporter (GTA) to move goods and the GTA does not charge 12% GST on the invoice, the recipient business must pay 5% GST under RCM.

B. Legal Services by Advocates

If a business entity hires an individual advocate or a firm of advocates, the advocate will not charge GST. The business entity must pay GST on legal fees under RCM.

C. Sponsorship Services

If a company sponsors an event, the service is provided by the event organizer to the sponsor. However, the sponsor (body corporate) is liable to pay GST under RCM.

D. Services by Directors

Services provided by a Director to the company (other than as an employee on payroll) are subject to RCM. The company pays the tax.

Practical Example

Scenario: ABC Pvt Ltd hires XYZ Transporters to move raw material. XYZ charges ₹10,000 for freight but does not charge GST on the bill.

Action: ABC Pvt Ltd must calculate 5% of ₹10,000 = ₹500.

Payment: ABC pays ₹500 directly to the government via the electronic cash ledger (RCM liability cannot be paid using ITC balance).

Benefit: After paying, ABC can claim this ₹500 as Input Tax Credit (ITC) in the same month.

How to Pay RCM?

This is a critical compliance point:

Cash Only: You cannot use your existing Input Tax Credit balance to pay RCM liability. It must be paid in cash.
Self-Invoicing: The recipient must issue a "payment voucher" or self-invoice for RCM supplies received from unregistered persons.
Reporting: RCM liability must be declared in Table 3.1(d) of GSTR-3B.

Can You Claim ITC on RCM Paid?

Yes! This is the silver lining. Once you pay the tax under RCM using cash, that amount gets credited to your Electronic Credit Ledger. You can then use this credit to pay your output tax liability on your own sales.

However, ITC is blocked if the underlying service is blocked under Section 17(5) (e.g., RCM paid on renting a cab for employees is not eligible for ITC unless mandated by law).

Conclusion

RCM is not an additional cost; it is a mechanism shift. For compliant businesses, it is revenue-neutral because the tax paid is claimed back as credit. The danger lies in ignorance—forgetting to identify RCM expenses (like legal fees or freight) leads to underpayment of tax, which attracts 18% interest and penalties during audits.