Under-Construction Property GST: Invoice and Rate Evidence Checklist

A GST classification guide covering project type, apartment category, construction status, invoice value, rate and credit notes. The objective is to convert a high-value property decision into a record that can be independently checked before payment, possession or dispute.

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What the buyer should understand

• Construction intended for sale before completion certificate or first occupation can be a taxable construction service.
• Common post-April 2019 effective residential rates are one per cent for qualifying affordable apartments and five per cent for other residential apartments, generally without input-tax credit and subject to conditions.
• Commercial apartment treatment can differ by project category.
• Where the entire consideration is received after completion certificate or first occupation, the sale-of-building treatment falls outside the construction service.
• The buyer should obtain valid invoices and preserve cancellation credit notes.

The five-point review

Practical example

How to apply the framework

Fix the project, phase, unit and legal actor

Identify the promoter or seller, exact registered project phase, unit, competent authority, lender and payee. Similar project names, sister companies and neighbouring phases are common sources of error. A document for another tower or phase does not validate the buyer's unit.

When you are ready for the next step, see Find the GST rate. See the law behind it..

Reconcile public records with the contract

Compare the relevant State RERA portal, sanctioned plans, local approvals, agreement, payment schedule, tax invoices, lender records and possession documents. Save the versions relied upon. RERA registration is an important transparency control, but it is not a title certificate and does not replace independent legal, engineering, tax or valuation work.

Keep every payment and representation traceable

Pay through banking channels to the correct legal entity, obtain receipts and maintain a cumulative payment ledger. Preserve brochures, emails, messages, demand letters and written promises. Do not rely on a broker or relationship manager to reconstruct the transaction after personnel change or dispute.

Apply current tax and lending forms

Tax and loan processes can change during a long project. For property TDS, the applicable form depends on the transaction date, seller status and governing Act; the legacy Form 26QB process should not be copied into post-1 April 2026 transactions that fall under Form 141 Schedule B. For home-loan insurance, the actual issued policy wording and schedule—not the sales pitch—control cover and claims.

Choose the remedy only after defining the objective

Possession, refund, interest, compensation, cancellation, loan restructuring and project completion can require different evidence and forums. RERA procedure, stamp duty, registration, tenancy, approvals and local property law vary by State and authority. Insolvency and lender security can also affect recovery. Obtain qualified advice before parallel or irreversible proceedings.

Implementation checkpoint

Before treating a milestone as complete, verify the live outcome: registered agreement, credited payment, accepted TDS statement, lender disbursement, revised amortisation, valid occupancy or completion approval, documented possession, repaired defect, society handover or registered complaint. Record the acknowledgement number, date, next deadline and unresolved mismatch.

Action checklist

• Identify the governing tax rule and date.
• Collect PAN/GSTIN and classification evidence.
• Reconcile consideration and stamp/invoice value.
• Use the correct form and payment route.
• Download certificate and acknowledgement.
• Correct mismatches promptly.

Evidence to keep

• Agreement and payment schedule
• PAN/GSTIN and residence/classification evidence
• Stamp value or completion evidence
• Invoice/challan/form acknowledgement
• Form 26AS/AIS or ledger reconciliation

Warning signs

Finin2min takeaway