Income Tax

Advance Tax Deadline on September 15: What Salaried Taxpayers With Extra Income Must Not Overlook

A practical guide to advance tax rules, who needs to pay by September 15, calculation tips and potential interest traps for FY 2026-27

Bluman Editorial Desk9 Sept 2026Updated 9 Sept 2026 4 min read
Calendar marked September 15, surrounded by various income symbols and a looming tax clock

Advance Tax: Who Needs to Pay by September 15?

Advance tax is India's system for collecting tax on income as it accrues, rather than at year-end. If your estimated annual tax liability, after accounting for TDS (tax deducted at source) and TCS (tax collected at source), exceeds ₹10,000, you're required to pay advance tax in instalments. September 15 is the due date for the second advance tax instalment for FY 2026-27, a key compliance point for many.

Why Advance Tax Affects Salaried Taxpayers With Other Income

While salaried employees usually have TDS deducted monthly, many forget that income from other sources—interest, rent, dividends, capital gains, freelance work—generally has no TDS or lower TDS. The shortfall pushes the taxpayer over the ₹10,000 annual liability threshold for advance tax.

If your only income is salary and your employer deducts full TDS, you likely don't need to worry about advance tax. But even a modest sum from FDs, shares, or side gigs can tip the balance—exposing you to interest on unpaid advance tax.

September 15: What Needs To Be Paid?

By September 15, you must have cumulatively paid 45% of your estimated annual tax liability after TDS/TCS. This isn't a fresh 45%, but the total paid via first and second instalments together.

Example: Advance Tax Due Calculation

Suppose your:

  • Estimated total tax for FY 2026-27 is ₹60,000
  • TDS expected to be deducted by employer is ₹45,000
  • After TDS, remaining liability = ₹15,000 (above ₹10,000 threshold)

Advance tax due by September 15 = 45% of remaining liability = 45% of ₹15,000 = ₹6,750 (cumulative).

If you paid ₹3,000 in June, pay an additional ₹3,750 by September 15.

Who is Exempt?

  • Resident senior citizens (60+ years) with no business or professional income are exempt from the advance tax requirement—regardless of interest, pension, or capital gains earned.
  • Those whose total tax post TDS/TCS is less than ₹10,000.

What If You Miss or Underpay?

Missing the September instalment or paying short can result in interest under Section 425 (former 234C):

  • Interest: 1% per month on the shortfall for three months (June–Sep is one advance tax quarter).

If, by year-end, your total advance tax (and TDS) covers less than 90% of the final liability, further interest applies under Section 424 (former 234B)—again, at 1% per month from April 1 following the end of the FY until settled.

Special Cases: Capital Gains, Dividends, and Unpredictable Income

If you realise capital gains or receive dividends late in the year, tax on such income can be paid during the remaining advance tax instalments without incurring interest for missed earlier instalments. This recognizes that you couldn't have foreseen these earnings.

Quick Filing Checklist

  • Add all expected income for the year (salary, rent, FD interest, gains, side income)
  • Deduct estimated TDS/TCS (from employer/banks)
  • If balance tax > ₹10,000, calculate 45% of balance = advance tax due by Sep 15
  • Keep proofs: calculation sheet, TDS/TCS certificates, advance tax payment challans

Timeline of Advance Tax Payments for Individuals (FY 2026-27)

Due Date% of Tax Liability (Cumulative)
15 June 202615%
15 September 202645%
15 December 202675%
15 March 2027100%

Avoiding Unnecessary Penalties

Small amounts from fixed deposits or a freelance job can result in an unpleasant surprise come filing season. Proactively estimating and paying the advance tax saves both money (by avoiding 1% per month interest) and trouble. Review your income mix each quarter and act if there's a new source.

Key Takeaways for Salaried Taxpayers

  1. Advance tax applies if your post-TDS expected tax exceeds ₹10,000 in FY 2026-27.
  2. 45% of estimated remaining annual liability is due as advance tax (cumulative) by September 15, 2026.
  3. Resident senior citizens (except those with business/professional income) are exempt.
  4. Missing or underpaying invites 1% per month interest under updated sections 425/424.
  5. Income from capital gains/dividends arising later can be paid in the next instalment without penalty for earlier missed instalments.

FAQs

Do I need to pay advance tax if my only income is salary and my employer deducts full TDS?

If, after considering all TDS, your remaining annual tax liability is less than ₹10,000, you don't need to pay advance tax.

Are all salaried taxpayers required to pay advance tax?

No. Only those whose remaining tax payable after TDS/TCS is more than ₹10,000 for the year need to pay advance tax. Those with only salary income typically do not, unless significant income from other sources exists.

How is the advance tax amount calculated for September 15?

You calculate your total annual tax, subtract expected TDS/TCS, and pay enough so that by September 15 you have cumulatively paid 45% of the estimated advance tax liability.

What happens if I don't pay the September advance tax instalment?

Interest at 1% per month is charged under Section 425 on the shortfall for three months (the quarter).

I'm a senior citizen; do I need to pay advance tax?

If you are a resident senior citizen without income from business or profession, you are exempt from advance tax—regardless of how much interest, rent or capital gains you earn.

Is advance tax payable if I earn capital gains after September 15?

Tax on capital gains or dividends realised after the previous instalment can be paid in the next advance tax instalment without attracting interest for missed earlier payments.

#advance tax 2026-27#income tax compliance#capital gains tax#interest and penalties

Frequently asked questions

Do salaried employees with only salary income have to pay advance tax?

If TDS on your salary covers your total tax liability and the remaining payable is below ₹10,000, advance tax is not required.

How do I calculate the advance tax due by September 15?

Estimate your total tax for the year, subtract expected TDS/TCS, and ensure 45% of the remaining liability is paid by this date (cumulative).

What sections govern advance tax interest now?

Sections 425 and 424 of the Income Tax Act, 2025 (corresponding to earlier 234C and 234B) now govern interest for deferred and short paid advance tax, at 1% per month.

Are senior citizens fully exempt from advance tax?

Resident senior citizens with no business or professional income are exempt, even if they earn interest, rent or capital gains.

Does advance tax apply to those earning capital gains late in the year?

Tax on such income can be paid in the next advance tax instalment without paying interest for missed earlier deadlines.

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