03 August 2026
Best Approach: Urge the deductor to revise/file their Q4 TDS return before filing ITR-3.
If Filing Now: Manually claim the credit in the TDS Schedule of ITR-3 (expect a temporary 143(1) mismatch notice) or claim it later via Section 155(14) / Section 154 once the deductor updates TRACES.
Documentation: Preserve invoices, bank statements, and deduction proofs to respond to potential mismatch notices.