How to Read Form 16: The 5 Numbers That Actually Matter for Tax Filing

The first number to verify in Form 16 Part B is the gross salary — the total compensation before any exemptions or deductions. This should match your salary slips totaled across all 12 months, including any bonus, leave encashment, or arrears paid during the year. If the gross salary in Form 16 differs from your own total, investigate before filing.

Discrepancies often arise when a year-end bonus is paid in April (technically the new financial year) versus March. Or when a joining bonus from a previous employer is included or excluded. Or when reimbursements that were processed through payroll appear in gross salary incorrectly.

Cross-reference gross salary in Form 16 Part B with the annual CTC statement your employer provides, and reconcile any difference. Filing your ITR with an incorrect gross salary figure can lead to a tax mismatch notice from the department.

Row 2 or the equivalent in Part B shows the total exemptions applied — HRA, LTA, special allowances under Section 10. This is the amount subtracted from gross salary to arrive at taxable salary. Verify that HRA exemption is calculated correctly: if you submitted rent receipts and the landlord's PAN (where required), the exempt amount should reflect your actual qualifying rent.

Common errors here: HRA exemption calculated on gross salary instead of basic salary, metro versus non-metro city status incorrectly applied, or LTA not claimed despite having submitted travel bills. These errors reduce the exempt amount and inflate your taxable salary, leading to excess TDS deduction.

If exemptions are understated in Form 16, you can claim the correct amount in your ITR. Your tax return is not bound by what Form 16 shows for exemptions — it is your declaration of the correct tax calculation. However, if the exemption you claim is significantly different from Form 16, keep documentation ready for any query.

This section of Form 16 Part B shows the 80C, 80D, 80CCD(1B), and other deductions your employer applied based on your investment declaration. The total amount here should match the proofs you submitted. If you submitted your December investment declaration with ELSS SIP receipts showing ₹1.2 lakh and the deduction shows only ₹80,000, your employer may not have processed the December to March instalments.

Review each line item: 80C total, 80D total, 80CCD(1B) NPS contribution, 80E education loan interest if applicable. Any deduction you legitimately qualify for but was not reflected in your Form 16 can be added correctly in your ITR filing. You are not limited to what the employer calculated.

Important: if you are filing under the new tax regime and your Form 16 reflects the old regime deductions (because you originally declared under old regime), you need to ensure your ITR filing correctly reflects your actual regime choice for the year, especially if you are switching from old to new for this assessment year.

The tax liability shown in Form 16 is the employer's calculation of your total income tax based on the information they had. Number 4 to check: does this match your own calculation of tax based on gross salary minus exemptions minus deductions? If there is a material difference, identify which inputs differ.

Number 5: TDS deposited (Form 16 Part A) shows the total TDS actually deposited to the government under your PAN. This should appear in your 26AS (Annual Information Statement, downloadable from the income tax e-filing portal). Verify that the TDS in Form 16 Part A matches 26AS. If your employer deducted tax but there is a mismatch with 26AS, the employer may not have deposited the tax or may have deposited it under an incorrect PAN — which is a serious compliance issue requiring employer rectification before you file.

If total TDS deposited is higher than your actual tax liability (which happens when the employer used conservative assumptions or did not apply all your legitimate exemptions), the excess is your tax refund. File your ITR accurately with the correct tax calculation and the refund will be processed to your bank account — typically within 2–6 weeks for online filing with quick e-verification.