Form 16 Part A and Part B Reconciliation for AY 2026-27

Review Form 16 Part A and Part B before AY 2026-27 filing by matching employer details, salary, deductions, TDS, AIS, and Form 26AS.

Most filing errors for salaried taxpayers do not start at the submit button. They start much earlier — when someone picks the wrong assessment year, accepts an incomplete portal prefill as complete, or grabs ITR-1 without checking whether the facts actually fit. This guide is a practical pre-filing note for FY 2025-26 income filed in AY 2026-27. It is not a guarantee of refund speed or notice avoidance; it is a way to get the facts in order before you file.

What each part does

The reconciliation that actually matters

Form 16 is a salary TDS certificate. It tells you what the employer deducted and remitted, and it provides the salary computation your employer used. But it is one input among several. TDS credit shown in Part A should be cross-checked against Form 26AS. Salary figures in Part B should align with AIS entries and payslips where relevant. If you have interest income, rental income, or any other head, those need separate source documents.

Official portal material is the rule source — not third-party blogs, not employer summaries alone, and certainly not portal-prefill data that has not been verified. The final return position should always trace back to the Income Tax Department portal, notified forms, and the taxpayer's own records.

A typical scenario

If Part B shows deduction proofs submitted to the employer but Form 26AS has lower TDS than Part A, resolve the TDS mismatch before claiming any refund. Do not assume the lower figure is wrong or the higher figure is right — verify with the employer and, if needed, ask for a corrected TDS return before filing.

Work through your documents in three passes. First, confirm the assessment year and the correct taxpayer profile. Second, identify the appropriate ITR form and income head. Third, reconcile tax credits across Form 16, AIS, and Form 26AS against what you plan to claim. If any pass raises a question, pause. That pause is where you catch the errors that lead to notices and defective-return issues.

Documents to assemble before filing

• Form 16 Part A
• Form 16 Part B
• AIS
• Form 26AS
• All deduction proofs

Keep these in one folder alongside a brief computation note. A note that simply explains "why this number is in the return" is surprisingly useful when, months later, you need to explain an AIS entry, a tax challan, or a bank interest figure to the department.

Pre-filing checklist

• Confirm the correct assessment year is AY 2026-27 for FY 2025-26 income.
• Match the article topic to the correct income head and return form.
• Compare Form 16 or Form 16A with AIS, TIS, Form 26AS, bank records, and broker or business records where relevant.
• Keep a note for every mismatch, correction, deduction, refund, or notice-sensitive position.
• File only after the figures are supportable and e-verify the return on time.

Mistakes that cause real problems

• Relying on Part B alone without checking Part A against Form 26AS.
• Not verifying the employer TAN in Part A.
• Assuming deduction proofs submitted to the employer are automatically accepted under the selected tax regime.
• Ignoring a Form 26AS mismatch and filing anyway.

The bigger risk is often the route, not the number. A revised return, rectification request, AIS feedback, ITR-U, demand payment, grievance, and notice reply each solve different problems. Do not reach for a route just because it is visible on the portal.

Useful MyeCA paths

• Salary tax guide
• Tax credit mismatch guide
• Form 16 parser
• Choose your ITR form
• Income tax calculator
• Regime comparator

Use calculators and tools as a preparation layer, not a substitute for checking final documents. If the case involves capital gains, foreign assets, business income, a large refund, tax-credit mismatch, or a notice, review the position before filing.

For broader AY 2026-27 context, keep the complete AY 2026-27 filing guide and the form-selection guide alongside your working file. For a CA-assisted review, use expert consultation.

Frequently asked questions

Is Form 16 enough for filing?

No. It is a key salary document, but AIS, Form 26AS, and other income records matter too.

What if Part A and Form 26AS differ?

Check with the employer or deductor before claiming unsupported TDS.

Should I get CA review before filing?

CA review makes sense when the facts are not routine — when there is refund or notice risk, capital gains, trading income, foreign assets, business income, regime changes, or an AIS/TDS mismatch.

CA technical review note

For this topic, the reviewer should document the selected assessment year, taxpayer status, ITR form, income head, tax regime, source records, and the reason each major figure appears in the return. When the position depends on timing — Form 16 issue date, AIS updates, TDS return processing, e-verification deadline, revised-return window, or notice response window — the relevant date should appear next to the decision.

The minimum file should include the computation, portal downloads, source statements, challans, acknowledgement, and correspondence. This article is not legal advice for any specific taxpayer without reviewing that taxpayer's own documents.

Final takeaway

Part A supports TDS and employer details. Part B supports salary computation. Both should match the return and tax-credit records. Treat Form 16 reconciliation as one task in the broader AY 2026-27 filing process — not the whole picture. A clean return depends on consistent treatment across all schedules, supporting records, and declarations, not just the salary certificate.