Everything about Reverse Charge Mechanism under GST

Last Updated On: Sept. 25, 2021, 11:16 p.m.


What is RCM?

Reverse charge mechanism (RCM) is the mechanism where GST is collected by the buyer instead of seller. There are two types of reverse charge that is

♣ On the basis of nature of supply or on supplier covered under section 9(3) of CGST/ SGST (UTGST) act and 5(3) of IGST Act

♣ On the basis on taxable supply from unregistered person to registered person covered under section 9(4) of CGST/ SGST (UTGST) and 5(4) of IGST Act.

♣ Supply of services through an e – commerce operator under section 9(5) of CGST Act


According to section 9 (5) of CGST Act, if a service provider uses an ecommerce operator to provide specified services, he will be liable to pay GST under reverse charge mechanism. For example providing house-keeping services like plumbing and carpentering through e – commerce operators such as urban clap, the e commerce operator is responsible to collect GST from customers instead of service providers.


A person whose turnover exceeds 40 lakhs (20 lakhs in case of special category except J&K) in case of sale of goods and 20 lakhs (10 lakhs in case of specified categories) in case of services  is required to compulsorily register under GST and thus under reverse charge mechanism.



The time of supply depends on the basis of supply of supply of goods or supply of services

Reverse Charge mechanism in case of supply of goods is

a) date of receipt of goods by the buyer;

b) or date of payment or date of amount debited in supplier’s bank account, whichever is earlier;

c) or the date immediately after thirty days from the date of issue of invoice or any other similar other document.


Reverse Charge Mechanism in case of supply of services,

1. date of payment received by the buyer;

2. or date of amount debited in supplier’ bank account, whichever is earlier;

Or date immediately after sixty days from the date of issue of invoice or any other similar document.

Where it is not possible to determine time of supply using both the methods, time of supply would be date of entry in the books of account of the recipient.



As per section 31 of the CGST Act, 2017 read with Rule 46 of the CGST Rules, 2017, The supplier has to mention the reverse charge taxability in the invoice. Similarly, the supplier also needs to mention the same  in receipt voucher as well as refund voucher.

Maintenance of books of accounts by registered persons under reverse charge mechanism

Any amount payable under reverse charge shall be paid by debiting an amount in  the electronic cash ledger.

All information related to Invoice level should be furnished separately in the table 4B of GSTR-1

Advance payment made for reverse charge supplies is also liable for GST.


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