TDS Reconciliation with AI: Do’s, Don’ts and a Review-Safe Checklist
AI can reduce the time spent sorting a TDS reconciliation, but the firm still has to establish the facts: what was paid or credited, what was deducted, what was deposited, what was reported and what appears on the deductee-side statement. The safe use of AI is to organise the evidence and explain the exception—not to declare the client compliant.
The five-way TDS control
Build one row per payment or deduction and preserve the source reference. The minimum control compares:
- Books / expense or payment ledger
- TDS deduction register
- Challan deposit evidence
- Quarterly statement — Form 26Q for earlier periods, Form 140 for tax year 2026-27 onwards
- Form 26AS/AIS or certificate evidence on the deductee side
The differences have to be directional. “Books versus 26AS mismatch” is too broad. Use separate buckets for missing in books, missing in statement, short deduction, short payment, wrong PAN, wrong quarter, duplicate, timing difference and correction required.
Do’s
- Clean and anonymise the input before using a model.
- Keep a stable row ID so every proposed match can be traced back.
- Run deterministic matches first: PAN, document reference, amount, quarter and date.
- Ask AI to return confidence, reason, source row and next action.
- Retain the before-clean and after-clean control totals.
- Make a person own every unresolved tax-value exception.
- Verify current rates, thresholds and form instructions against the official source.
Don’ts
- Do not upload a client’s raw ledger, PAN list or bank data to an unapproved public tool.
- Do not accept a fuzzy match merely because the amount is similar.
- Do not treat Form 26AS/AIS as proof that the expense was booked or the deduction rate was correct.
- Do not net a short deduction against an unrelated excess deduction.
- Do not use Form 140 for a FY 2025-26 correction.
- Do not let an AI-generated exception note add a cause, legal conclusion or date that is absent from the evidence.
The AI output that a reviewer can use
For each row, require:
| Field | What it should show |
|---|---|
| Row ID | Stable reference back to the source population |
| Proposed status | Matched, timing, missing, short, wrong PAN, duplicate or correction |
| Reason | Plain explanation anchored to the compared fields |
| Confidence | High, medium or low with a rule for review |
| Tax value | Amount affected, not just a row count |
| Next action | Client follow-up, correction, deposit evidence or reviewer decision |
| Owner and due date | Who closes the item and when |
Low-confidence rows should be visible, not silently forced into “matched.”
Transition-year reminder
For FY 2025-26 and earlier, retain the old Income-tax Act 1961 reference and old return form. For tax year 2026-27 onwards, carry the old payment label as a cross-reference but add the Income Tax Act 2025 Section 392/393/394 route, payment code and new return form. The filing date does not change the governing year.
Use the TDS 26Q / Form 140 checker, Section 40(a) disallowance calculator, TDS section converter, TDS exception prompt and TDS reconciliation working paper together.