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Interest Imposed by the IT Department - Section 234C

By CA Mohammed S Chokhawala

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Updated on: Dec 12th, 2025

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4 min read

Section 234C of the Income Tax Act deals with interest on delayed payment of advance tax installments. Interest at 1% for every month or part of the month is levied for delay in payment of advance tax installments.

What Is Section 234C of the Income Tax Act?

  • Section 234C deals with delay in payment of installments of advance tax.Ā 
  • Under this section 1% interest shall be levied for every month or part of the month for delay in payment of advance tax installments.
  • Interest under Section 234C applies only up to March 31st, regardless of any unpaid advance tax lingering beyond that date.
  • The advance tax installment shall be paid on 15th June, 15th September, 15th December, and 15th March of the financial year.
  • Current laws require taxpayers to pay advance tax only when their income tax liability for the fiscal year exceeds Rs.10,000 after deducting TDS for the applicable fiscal year.

Calculation Of Interest Under Section 234C

The interest on delayed payment of advance tax in case of a taxpayer other than the one opting for presumptive income u/s 44AD is as below:

Particulars

Rate of Interest

Period of Interest

Ā 

Amount on which interest is calculated

If the Advance Tax paid on or before June 15 is less than 15% of the Amount*

Simple interest @1% per month

3 months

15% of [Amount* (-)tax already deposited before June 15]

If Advance Tax paid on or before September 15 is less than 45% of the Amount*

Simple interest @1% per month

3 months

45% of [Amount* (-) tax already deposited before September 15]

If Advance Tax paid on or before December 15 is less than 75% of the Amount*

Simple interest @1% per month

3 months

75% of [Amount* (-) tax already deposited before December 15]

If Advance Tax paid on or before March 15 is less than 100% of the Amount*

Simple interest @1% per month

–

100% of [Amount* (-) tax already deposited before March 15]

*amount refers to assessed tax = Tax liability - TDS/TCS - Section 90 Relief

Illustration To Calculate Interest For Late Payment

Consider that your total tax liability for this financial year is Rs.100,000, and it needs to be paid in instalments as explained above. Assume there is no TDS here. If you made partial payments instead, you will be liable to pay interest as per the last column in the table below:

Payment Dates

Advance Tax payable

Total Advance Tax paid

Shortfall (Cumulative)

Penalties (Cumulative)

15th June

15,000

5,000

10,000

@1% * 3*10,000 = 300

15th September

45,000

25,000

20,000

@1% * 3 *20,000=600

15th December

75,000

35,000

40,000

@1% * 3 *40,000=1200

15th March

1,00,000

50,000

50,000

1% * 1 *50,000=500

The total interest payable is Rs 2,600.

Criteria Under Which Advance Tax Interest Is Not Payable

  • No interest is payable if there is any shortfall in payment of advance tax due if it is on account of underestimation or failure to estimate the amount of capital gains or speculative income (lottery income, gambling income, etc).Ā 
  • The taxpayer has paid in full, the tax payable on the income mentioned above while paying the remaining instalments of advance tax due, or if no instalment is due, the taxpayer pays them before the end of the financial year.

Exceptions To Paying Interest Under Section 234C

If you meet any of the following criteria, you are exempt from paying advance tax and, as a result, interest under Section 234C is not assessed.

  • A resident senior citizen with no income under the 'PGBP' heading
  • If your net tax liability is less than Rs 10,000, no interest will be charged under Section 234C.

What Is The Difference Between Section 234B & Section 234C?

Section 234B imposes interest on taxpayers who fail to pay advance tax or pay less than 90% of the net tax payable during the assessment year. As a result, the need to pay interest under Section 234B arises after the end of the fiscal year until the date of tax payment.

Section 234C imposes interest on taxpayers who fail to pay their taxes on time during the fiscal year.

Example: For the FY 2023-24, if there is any deficit in payment of taxes, then Interest u/s 234C will be computed for delay till 31st Mar 2024, any delay in payment of taxes after 1st April 2024 till the date of such payment Section 234B interest will be computed while your file your ITR.

Remember, ClearTax automatically calculates the interest under Section 234 for you based on the amounts you enter and the dates.

For a better understanding, read more related articles:

Frequently Asked Questions

Can I apply for a waiver of interest available in 234B and 234C?

Interest u/s 234B and 234C is computed automatically while filing ITR. Thus unless you have paid the advance tax in time you will not be able to reduce such interest.

What is the penalty for non payment of advance tax ?

Non payment or delay in payment of advance , You are liable to pay interest on such short payment at 1% per month till the date of such payment u/s 234C and 234B.

How much advance do I have to pay?

For advance tax calculation first you will have to determine the tax liability for the entire year based on projected income. After that advance tax needs to be paid off in the below proportion.

  1. By 15th June - 15% of assessed tax
  2. By 15th Sept - 45% of assessed tax
  3. By 15th Dec - 75% of assessed tax
  4. By 15th Mar - 100% of assessed tax
About the Author
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CA Mohammed S Chokhawala

Content Writer
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I'm a chartered accountant, well-versed in the ins and outs of income tax, GST, and keeping the books balanced. Numbers are my thing, I can sift through financial statements and tax codes with the best of them. But there's another side to me – a side that thrives on words, not figures. Read more

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