An invoice does not prove the service was received
Section 16 treats receipt of services as a separate input-credit condition. A supplier may invoice before performance, on a milestone or at the end of a recurring period. The business should establish what was actually supplied and the evidence supporting receipt before deciding the claim period.
Begin with the agreement and invoice description. “Professional charges” may not identify the work, recipient or service period. Obtain enough detail to understand the engagement without demanding an artificial completion certificate for every routine service. The best evidence is normally the record the business uses to confirm that the supplier performed.
Choose evidence suited to the service
For repairs, keep the work order, job sheet, completion details and equipment reference. For advertising, retain the campaign agreement, publication or delivery reports and approval records. For software or cloud access, identify licence activation, authorised users and the service period. Different services leave different operating evidence.
A recurring premises service may be supported by attendance, maintenance or service logs and periodic acceptance. An advisory engagement may have reports, correspondence or meeting outputs. The record should demonstrate the actual service rather than merely repeat the invoice wording in a memo prepared after a tax query arises.
Illustratively, a Surat manufacturer receives a ₹50,000 technical-consulting invoice with GST separately shown. The project manager can link it to an agreed machinery review, site-visit notes and the resulting report. A bank payment alone would show settlement but would not establish that this particular consulting work was delivered.
Identify who received the service
Check whether the claimant's GSTIN is the actual recipient and how the service supports its business. A group company may pay centrally for work used by another entity, or a head office may receive invoices for several distinct registrations. Shared ownership does not make every group entity entitled to the same credit.
The law includes a specified deemed-receipt rule where services are provided to another person on the registered person's direction and account. Keep the instruction, contract and beneficiary details where relying on that arrangement. Do not assume the individual attending a training session or receiving an output must always be identical to the contracting registered person.
For services received on behalf of distinct persons, review the current ISD framework and other relevant supply facts. The mandatory framework effective from April 2025 changed the analysis for qualifying invoices. A service-receipt note should identify the real beneficiaries before the accounts team chooses an allocation mechanism.
Record periods and milestones carefully
Identify the service period, milestone terms, acceptance criteria and actual completion facts. An annual invoice can cover access over time, while a project invoice may relate to an achieved stage. Do not assume either that every annual charge must wait until year-end or that every billed milestone is automatically a completed supply.
Use the actual contractual and legal treatment to assess receipt. Keep the reasoning where performance is ongoing or disputed. If the supplier has delivered only part of the agreed work, distinguish that from a fully received service for which payment is merely overdue.
Advance payments need their own tracking. A deposit may reserve work that has not begun, while another payment may settle services already delivered. The payment label in the ledger cannot decide the receipt condition without the underlying contract and performance evidence.
Separate business acceptance from tax eligibility
A department's approval can establish that work was satisfactory, but it does not automatically establish eligible credit. Review business use, exempt activities, blocked categories and the correct recipient. Food, employee benefits, construction and vehicle-related services can remain restricted despite evidence that the supplier performed exactly as contracted.
Where a category-specific exception is relied on, retain the additional evidence supporting it. An employee-benefit legal obligation, for example, requires identification of the actual law and covered scope. A purchase manager's approval is not a substitute for that legal condition.
Also check supplier reporting, the prescribed document, payment conditions and deadlines. A strong service-completion record does not cure an invoice to the wrong GSTIN or a time-barred first claim. Keep the receipt conclusion as one part of the wider file rather than presenting it as a certificate of universal compliance.
Recurring services benefit from a named contract owner who confirms exceptions each period. That person can identify cancelled access, missed maintenance visits or work performed at another entity. Keep the confirmation proportionate: a concise period-specific record can be more useful than a standard certificate signed without checking. The aim is evidence of actual service, not a ritual document that always repeats the invoice total.
Handle disputes and corrections transparently
If the business contests performance, record the issue, amount and resolution. A genuine service deficiency may lead to a credit note or reduced consideration. Do not silently reduce the invoice value in the purchase ledger while continuing to claim tax from the original document without reviewing the proper treatment.
Keep revised deliverables, acceptance messages and settlement terms connected to the original invoice. Where a later event changes an earlier conclusion, preserve both versions and explain the adjustment. This is more useful than replacing the original approval note and leaving no evidence of why the claim changed.
Maintain an exception list for invoices awaiting performance confirmation, missing outputs or recipient clarification. Assign the issue to the person who knows the service, with a follow-up date. A complete file should show what was supplied, who received it and why the selected timing is supported, allowing the remaining GST conditions to be reviewed on reliable facts.
Sources and references
- CBIC: current CGST section 16, eligibility and conditions
- CBIC: Central Goods and Services Tax Act, consolidated through August 2021
- CBIC CGST Rules compilation through September 2021
- Notification 16/2024-Central Tax: commencement of revised ISD provisions
- CBIC: current CGST section 20, including 2025 amendments
- CBIC Circular 170/02/2022-GST: reporting ITC and reversals