GST Reverse Charge Mechanism (RCM): Section 9(3) & 9(4) List, Self-Invoicing & ITC
Rahul Verma
· Direct & Indirect Tax Specialist· 7 min read
In standard GST transactions (Forward Charge), the seller adds GST to the bill, collects it from the buyer, and deposits it with the tax department. Under the Reverse Charge Mechanism (RCM), this statutory obligation is flipped on its head: the recipient must compute, declare, and remit the GST directly to the government. Failing to identify RCM services leads to automated tax scrutiny notices, disallowed ITC, and mandatory 18% annual penal interest under Section 50.
- ✓Under Reverse Charge Mechanism (RCM), tax liability shifts from the supplier to the recipient of goods or services under Section 9(3) and 9(4) of the CGST Act.
- ✓RCM liability must be paid 100% in CASH via the Electronic Cash Ledger; Input Tax Credit (ITC) CANNOT be used to settle RCM liabilities.
- ✓Once paid in cash in GSTR-3B Table 3.1(d), the recipient can immediately claim 100% ITC in Table 4(A)(3) in the same tax period.
- ✓The recipient is statutorily required to generate a Self-Invoice under Section 31(3)(f) and a Payment Voucher under Section 31(3)(g) for supplies received from unregistered vendors.
What is RCM and why does the government use it?
The Reverse Charge Mechanism is designed to capture tax revenue from unorganized or legally protected sectors where tax collection from the supplier is difficult. Under Section 9(3) of the CGST Act, the Central Board of Indirect Taxes and Customs (CBIC) notifies specific categories of goods and services subject to reverse charge.
Under Section 9(4), RCM applies when specified registered persons purchase specified classes of goods or services from unregistered suppliers (such as real estate developers purchasing construction inputs).
Comprehensive list of notified RCM services under Section 9(3)
Every Indian enterprise, agency, and startup must review vendor payments against these primary notified RCM categories:
| Notified Service | Supplier Category | Recipient Category | RCM Tax Rate |
|---|---|---|---|
| Goods Transport Agency (GTA) | GTA not opting for 12% forward charge | Registered business, factory, society, body corporate | 5% RCM (No ITC to GTA) |
| Legal Services by Advocates | Individual advocate, senior advocate, or law firm | Any business entity located in taxable territory | 18% RCM |
| Director Services to Company | Director of a company/body corporate | The company or body corporate | 18% RCM |
| Commercial Property Renting | Any unregistered landlord | Any registered business tenant (notified w.e.f. Oct 2024) | 18% RCM |
| Sponsorship Services | Any person providing sponsorship | Any body corporate or partnership firm | 18% RCM |
| Recovery Agent Services | Recovery agent | Banking company, financial institution, NBFC | 18% RCM |
How to pay RCM: The Electronic Cash Ledger rule
The single most common audit mistake made by accountants is attempting to offset RCM liability using accumulated Input Tax Credit (ITC).
Under Section 49(4) of the CGST Act, ITC can only be utilized for discharging output tax liability. Section 2(82) explicitly clarifies that tax payable under reverse charge is NOT an output tax of the recipient. Therefore, RCM liability MUST be paid in hard cash through the Electronic Cash Ledger in GSTR-3B Table 3.1(d).
Simultaneous ITC Claim in Same Month
While you must pay RCM in cash, you are entitled to claim 100% of that paid amount as Input Tax Credit in Table 4(A)(3) of the very same GSTR-3B return, provided the underlying expense qualifies under Section 16(1). The net cash drain is temporary.
Section 31(3)(f) Self-Invoicing: Statutory documentation
When you receive goods or services subject to RCM from an unregistered supplier (e.g., an independent lawyer, unorganized transporter, or unregistered commercial landlord), you cannot rely on their receipt.
You must generate a formal Self-Invoice under Section 31(3)(f) of the CGST Act containing your GSTIN as both supplier and recipient, sequential numbering, applicable SAC code, and the explicit tag 'Invoice issued under Section 31(3)(f) for Reverse Charge'. When paying the vendor, you must also issue a Payment Voucher under Section 31(3)(g).
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Frequently Asked Questions
Can I pay RCM liability using Input Tax Credit?
No. Under Section 49(4) and Section 2(82) of the CGST Act, RCM liability cannot be settled using Input Tax Credit. It must be paid entirely in cash through the Electronic Cash Ledger.
Are director salaries subject to RCM?
Salaries paid to whole-time or managing directors that are treated as employment income under Section 192 (subject to TDS on salary) fall under Schedule III of the CGST Act and are NOT subject to GST or RCM. However, sitting fees, commissions, or consulting fees paid to independent or non-executive directors are subject to 18% RCM.
Is commercial rent under RCM in 2026?
Yes. Following CBIC Notification No. 09/2024-Central Tax (Rate), if an unregistered landlord rents out commercial property to a registered business entity, the tenant must discharge 18% GST under the Reverse Charge Mechanism.
What is a self-invoice under RCM?
A self-invoice is a statutory tax document generated by the recipient of an RCM supply when procuring from an unregistered person, as mandated under Section 31(3)(f) of the CGST Act. It serves as legal proof to substantiate the tax payment and subsequent ITC claim.
Rahul Verma
Direct & Indirect Tax SpecialistOver a decade advising Indian businesses on GST Rule 46 invoicing, E-Way Bill transit compliance, and corporate tax structuring.