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Short answer: reverse charge does not automatically mean the recipient must create an e-invoice. An e-invoice is the supplier’s covered tax invoice authenticated by the GST Invoice Registration Portal (IRP). A self-invoice is a recipient-issued document required for specified reverse-charge supplies received from an unregistered supplier. A payment voucher is a separate recipient document issued when payment is made to the supplier. The issuer, trigger and legal purpose are different for each document.
Use the transaction facts and the current reverse-charge and e-invoice notifications—not the fact that a transaction is “RCM”—to decide which document is required.
At a glance: which GST document is required?
| Document | Who issues it | When it is triggered | Purpose | Important limitation |
|---|---|---|---|---|
| E-invoice | The supplier issuing a covered tax invoice | When the supplier and document fall within the notified e-invoice mandate | The supplier’s invoice data is authenticated by the IRP, which returns an Invoice Reference Number (IRN) and QR code | It is not a recipient-created reverse-charge document |
| Self-invoice | The registered recipient liable under the applicable reverse-charge provision | Receipt of a covered supply, including the statutory case involving an unregistered supplier on the date of receipt | Documents the inward supply for the relevant reverse-charge liability | Section 9(4) coverage has changed through notifications; not every purchase from an unregistered person requires one |
| Payment voucher | The registered recipient liable to pay tax under the applicable reverse-charge provision | At the time the recipient pays the supplier | Records the payment-stage voucher obligation | It does not replace a self-invoice where a self-invoice is required, and it is not proof that GST was paid to the government |
The statutory wording for the recipient documents appears in section 31 of the Central Goods and Services Tax Act, 2017. CBIC’s sectoral explanations are in questions 12 and 14 of its Sectoral FAQs.
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An e-invoice is an electronic authentication step for a standard GST tax invoice. The supplier first prepares the invoice with the required particulars and submits the invoice data to the IRP. The portal validates the data and returns an IRN and QR code. The invoice-printing guidance also includes reverse-charge status among the invoice particulars, and an invoice covered by Rule 48(4) carries a QR code containing the IRN. See the GSTN IRP explanation of e-invoice printing, mandatory fields and IRN generation.
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This authentication does not transfer the issuing role to the recipient. If a supplier is making a covered outward supply, the supplier remains the invoice issuer even when the recipient, rather than the supplier, is liable for GST under reverse charge. The recipient may have separate self-invoice or payment-voucher duties, but those duties do not turn the recipient’s document into the supplier’s e-invoice.
Testing whether the e-invoice mandate applies
The GSTN IRP’s published mandate page states that the threshold is aggregate annual turnover (AATO) of ₹5 crore or more in any preceding financial year from 2017–18 onward, effective 1 August 2023 under Notification 10/2023 dated 10 May 2023. This is a legal applicability threshold, not a measure of adoption or compliance performance. Read the portal’s E-Invoice Mandate Under GST page together with the latest notifications before applying it to a particular GSTIN.
For a transaction-level decision, check all of the following:
- Whether the taxpayer’s AATO meets the notified threshold under the relevant financial-year test.
- Whether the taxpayer is excluded by a current exemption.
- Whether the document type and transaction are within the notified scope.
- Whether the GSTIN is active and eligible for IRP reporting.
- Whether the invoice already contains the required reverse-charge indication.
Because exemptions, document scope and portal procedures can be amended, do not treat the 2023 threshold statement as a permanent answer for every 2026 transaction.
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When a registered recipient must issue a self-invoice
Section 31(3)(f) addresses a registered person who is liable to pay tax under reverse charge and receives a supply from a supplier who was unregistered on the date of receipt. CBIC’s FAQ describes the covered situation as supplies of goods or services from an unregistered person located in India and services received from a person located outside India, subject to the applicable reverse-charge provisions. The recipient issues the self-invoice on receipt of the supply.
Conditions to verify before creating one
- Recipient status: the recipient must be registered and must be the person liable for tax under the applicable reverse-charge rule.
- Supplier status: for the statutory case in section 31(3)(f), the supplier was unregistered on the date the supply was received.
- Supply type: the supply must fall within a reverse-charge provision that is actually in force for that transaction.
- Receipt date: record the date on which the goods or services were received; CBIC’s explanation ties the self-invoice to that receipt.
- Document details: prepare the invoice with the particulars required by the GST invoice rules, including the indication that tax is payable on reverse charge.
The unregistered-supplier condition does not mean every purchase from an unregistered business creates an RCM invoice. CBIC notes that section 9(4) has been suspended, amended and restored for particular classes of supplies and recipients through notifications. Determine the current notified scope before issuing a self-invoice merely because a vendor lacks a GST registration number.
Domestic unregistered supplier example
A registered company receives a notified reverse-charge service from an Indian sole proprietor who was unregistered on the receipt date. If the service is within the current RCM notification, the company prepares the self-invoice when it receives the service and accounts for the reverse-charge tax. The company should retain the supplier’s identity and status evidence, receipt date, contract or purchase order, valuation records and the resulting tax calculation.
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Foreign-service example
An Indian registered business receives a service from a supplier outside India and the service is taxable to the recipient under the applicable import-of-services reverse-charge rule. The recipient’s documentation must be based on the actual place-of-supply, supplier location, service classification and current RCM notification. CBIC’s FAQ treats services from a foreign supplier separately from imported goods and describes self-invoicing for the relevant service situation.
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What a payment voucher is—and when it is issued
Section 31(3)(g) requires a registered recipient liable to pay tax under reverse charge to issue a payment voucher at the time of making payment to the supplier. CBIC’s FAQ specifically uses payment to a foreign supplier of services as an example. The trigger is the payment event, not the date on which the recipient first records the liability.
Payment voucher versus self-invoice
These documents can arise in the same transaction but at different moments. A self-invoice documents the inward supply when the relevant receipt-based duty applies. A payment voucher documents the later payment to the supplier. Issuing a payment voucher does not cure a missing self-invoice, and issuing a self-invoice does not eliminate the payment-voucher duty when the statutory payment trigger applies.
Payment voucher versus paying GST
A payment voucher is an accounting and GST document issued to the supplier. It is not a challan, cash-ledger debit or other evidence that tax has been paid to the government. The CBIC/NACIN reverse-charge flier dated 8 August 2017 states: “Any amount payable under reverse charge shall be paid by debiting the electronic cash ledger.” That wording should be read with the current GST law and rules, because the flier is an explanatory document from 2017. The flier is available as a CBIC reverse-charge mechanism PDF.
CBIC’s FAQ also says the payment-voucher obligation is reflected in the GST return for the tax period in which the supply takes place under the cited time-of-supply treatment. Apply the current time-of-supply rules to the actual transaction rather than assuming that the payment date alone fixes every reporting period.
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Imported goods and foreign services are not the same case
For imported goods, CBIC’s FAQ says the described transaction is supported by a bill of entry, so a separate self-invoice is not needed in that situation. Import documentation, customs valuation and the bill of entry remain central records.
Foreign-supplier services are different. Where the service is taxable to the Indian recipient under the applicable reverse-charge rules, the recipient may have a self-invoice duty and a payment-voucher duty. Confirm that the transaction is actually an import of services, determine the place of supply, and check the current notification before selecting the document set. Do not carry the imported-goods treatment over to services or treat every overseas payment as an RCM import of services.
A practical decision workflow
- Classify the supply. Identify whether it is goods, services, imported goods or services from outside India. Preserve the contract, purchase order, customs paperwork and supplier location evidence.
- Identify the tax-liable party. Check the current reverse-charge notification and determine whether the supplier or recipient must pay GST.
- Check supplier registration at receipt. If section 31(3)(f)’s unregistered-supplier condition is relevant, establish the supplier’s registration status on the actual receipt date.
- Check the e-invoice mandate independently. Test AATO, exemptions, document scope and GSTIN eligibility under the current IRP rules. Reverse-charge status alone is not the test.
- Issue the right document at the right event. The supplier submits a covered supplier invoice to the IRP; the recipient issues a self-invoice at covered receipt; the recipient issues a payment voucher when payment is made.
- Report and pay tax. Record the document numbers and tax amounts in the appropriate GST records and return. Discharge reverse-charge liability through the prescribed payment mechanism; a payment voucher is not that payment.
- Assess input-tax credit separately. The 2017 CBIC flier says eligible input tax credit may be claimed after payment, but eligibility depends on the current ITC statute, rules, blocked-credit provisions and business-use conditions. Obtain current advice for the specific credit claim.
Records to retain for an audit trail
- The supplier invoice or commercial document and any IRN and QR code received from the IRP.
- Self-invoice and payment-voucher serial numbers, dates and links to the underlying transaction.
- Evidence of supplier GST registration status on the receipt date when that fact determines self-invoice liability.
- Proof of receipt, such as a goods-received note, service-acceptance record or milestone certificate.
- For foreign transactions, the agreement, supplier location, currency conversion, remittance proof, place-of-supply analysis and import-of-services classification.
- For goods imported through customs, the bill of entry and related customs records.
- Tax calculations, electronic cash-ledger payment references, return workings and any ITC eligibility analysis.
- IRP acknowledgements, rejected-upload messages and corrected-document history where e-invoicing applies.
Use a consistent numbering series for recipient-created documents and cross-reference the self-invoice, payment voucher, accounting entry and return period. That linkage makes it easier to show why a document was issued and prevents duplicate tax accounting.
Common mistakes and how to correct them
“RCM means the recipient must generate an e-invoice.”
Incorrect. E-invoice is a supplier-invoice authentication requirement tested under the IRP mandate. The recipient’s self-invoice and payment-voucher obligations arise from separate statutory triggers.
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Creating a self-invoice for every unregistered purchase
Incorrect unless the supply is within a currently notified reverse-charge category. Check section 9(4) notifications and the specific supply description before issuing one.
Issuing the payment voucher only when GST is paid
The payment voucher is triggered when the recipient pays the supplier. Government tax payment is a separate event governed by the applicable payment and return rules.
Using a self-invoice for imported goods
CBIC’s described imported-goods situation uses the bill of entry instead. Verify customs treatment and transaction facts rather than copying the services process.
Assuming a foreign supplier always means import of services
Supplier location alone is not enough. Classify the supply and place of supply, then apply the relevant RCM notification and time-of-supply rule.
Relying on an old threshold or exemption list
The IRP mandate page records the ₹5 crore threshold effective 1 August 2023, but notifications and exemptions can change. Recheck the current portal guidance and applicable GST notifications before each implementation decision.
Primary official references
- CBIC: Central Goods and Services Tax Act, 2017, section 31
- CBIC: Sectoral FAQs, including questions 12 and 14
- GSTN IRP: E-Invoice Mandate Under GST
- GSTN IRP: E-invoice printing, mandatory fields and IRN-generation modes
- CBIC/NACIN: GST Reverse Charge Mechanism, 8 August 2017
- CBIC: Tax Invoice, Credit and Debit Notes
The reliable rule of thumb is simple: identify the issuer first, identify the triggering event second, and test e-invoice applicability independently. Then verify the current notification position before posting the transaction.
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