Key takeaways
- RCM applies only when the charging provision and current notification cover the transaction.
- Reverse-charge tax is paid in cash; existing ITC cannot discharge it.
- ITC arises only after payment and satisfaction of section 16 and section 17 conditions.
- Time-of-supply rules differ for goods and services and include a fallback date.
- Maintain a notification, self-invoice, payment-voucher and return-level audit trail.
How do you decide whether RCM applies?
Use a five-part test: charging section, current notification, supply classification, supplier status and recipient status. Section 9(3) covers notified categories. Section 9(4) is limited to notified recipient classes and specified supplies. IGST has parallel provisions for inter-State/import situations.
Do not rely on an accounts payable label such as “legal fee.” Check the precise entry, exclusions, registration facts and place of supply.
What are the time-of-supply rules?
| Supply | General reverse-charge trigger |
|---|---|
| Goods | Earlier of receipt, payment, or 30 days from supplier invoice; fallback to recipient books |
| Services | Earlier of payment or 60 days from supplier invoice; fallback to recipient books |
| Associated-enterprise import of service | Earlier of book entry or payment |
Apply the current statutory definitions of payment date and special rules. A delayed vendor invoice does not necessarily defer liability.
Which documents are required?
Maintain the supplier document, contract, classification note, notification extract, self-invoice where required, payment voucher where required, proof of consideration, cash-ledger debit, GSTR-3B liability/ITC entries and ITC eligibility review. Number self-invoices consistently and prevent duplication with the supplier’s invoice.
How do liability and ITC move through the return?
First report and pay the RCM liability in cash. Separately claim eligible ITC in the appropriate ITC table after payment. A control ledger should bridge opening unpaid liability, current taxable base, tax by head, cash paid, ITC claimed, ineligible amount and closing difference.
What is a worked example?
A registered company receives a covered professional service invoice dated 5 June for ₹100,000 plus tax under RCM and pays the supplier on 20 July. Sixty days from 5 June is 4 August, so payment on 20 July is earlier and ordinarily fixes time of supply. The company reports and pays RCM in cash for the relevant period, then claims ITC if the service is for business and not blocked.
What errors recur?
Frequent mistakes are using ITC to pay RCM, claiming ITC before tax payment, applying section 9(4) universally, missing import services and related-party entries, using the normal time-of-supply rule, failing to issue the required recipient document, or claiming blocked employee/personal expenditure merely because RCM was paid.
What monthly control should be used?
Scan vendor ledgers, expense accruals, director/legal/GTA/import and unregistered-supplier populations against a maintained notification matrix. Age unpaid invoices against 30/60-day triggers, approve the cash payment, and reconcile liability and ITC in separate columns.
Primary sources
Frequently asked questions
Can ITC be used to pay RCM liability?
No. Reverse-charge output tax must be discharged through the electronic cash ledger. Eligible ITC may be claimed after payment and satisfaction of the statutory conditions.
When can RCM ITC be claimed?
After the recipient pays the reverse-charge tax and holds the required document, subject to section 16, section 17, return and time-limit conditions.
Is a self-invoice required for every RCM supply?
Section 31 requires recipient invoicing in the specified cases, principally where the supplier is unregistered and the recipient is liable under reverse charge. A registered supplier ordinarily issues its own tax invoice.
What is the RCM time of supply for services?
It is generally the earlier of payment date or 60 days from the supplier invoice, with the recipient-book entry fallback where the main rule cannot determine it. Associated-enterprise imports have a special rule.
Does every purchase from an unregistered person attract RCM?
No. Section 9(4) operates for notified classes of registered persons and specified supplies, not as a universal tax on every unregistered purchase.
Should RCM ITC appear in GSTR-2B?
Some system statements and ledgers assist control, but recipient liability, cash payment and the correct source document remain decisive. Reconcile RCM separately from ordinary supplier-credit flow.
Explore the GST authority library
Research the underlying documents inside your AI assistant
Connect TaxByKK to Claude or ChatGPT to trace provisions, read source pages and build a cited working draft.
View TaxByKK plans