Income Tax · Filing & Notices

Capital Gains Indexation Working File for Property Sales

Finin2min Tax Desk·June 2026·7 min readCAPITAL GAINS

Property capital gains are evidence-heavy. Sale value, stamp duty value, indexed cost, improvement proof, loan closure and exemption investment should be tied in one file.

Property gains file

Item	Evidence
Sale consideration	Sale deed, agreement and bank receipts.
Stamp duty value	Registration/stamp document.
Cost of acquisition	Purchase deed, allotment letter and payment proof.
Improvement cost	Invoices, approvals and bank payments.
Exemption claim	New asset/investment documents and timelines.

Reconciliation checks

Match buyer TDS/Form 26AS/AIS with sale deed.
Check co-owner share and reporting split.
Prepare indexed cost working year-wise.
Keep loan closure and possession evidence.
Save capital gains computation with ITR copy.

Finin2min warning

Property gains fail on missing cost evidence. Preserve old purchase/improvement documents before filing.

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Build your tax filing evidence folderSave AIS/TIS, Form 26AS, proofs, computations, challans, notices and final ITR acknowledgement year-wise.

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Official sources used

This article is intentionally source-limited to official Income Tax Department / e-Filing material. Verify final positions with the latest Income-tax Act, rules, forms, portal utilities and instructions before filing.

FAQs

What documents are needed for property capital gains? ▾

Sale deed, purchase cost, improvement proof, stamp value, TDS/AIS and exemption documents.

Why check AIS/Form 26AS? ▾

Property transactions and TDS may appear in taxpayer information statements.

Should co-ownership be documented? ▾

Yes. Income and gain should align with ownership share and evidence.