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What is Alternate Minimum Tax (AMT)?

Alternate Minimum Tax (AMT) is a taxation concept introduced to ensure that taxpayers claiming multiple deductions or exemptions still contribute a minimum amount of tax to the government. It acts as a balancing mechanism for equity and prevents misuse of tax benefits. AMT mainly applies to non-corporate taxpayers like LLPs, partnership firms, and individuals availing certain deductions.

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Understanding AMT

To grasp AMT fully, it’s important to understand its objective, who is covered, and which taxpayers are exempt. AMT ensures that tax benefits are not used to the extent of eliminating a person’s total tax liability.

Definition and Purpose of AMT

Alternate Minimum Tax was introduced under Section 115JC to 115JF of the Income Tax Act, 1961. It ensures that non-corporate taxpayers who claim deductions under Chapter VI-A (such as Section 80H, 80-IA, 80-IB, or 80-IC) or Section 10AA (for SEZ units) pay a minimum tax amount.

The purpose of AMT is similar to Minimum Alternate Tax (MAT) for companies — to ensure all entities contribute fairly, irrespective of tax incentives claimed.

Who is Eligible for AMT

AMT applies to:

  • Individuals, HUFs, AOPs, BOIs, and partnerships claiming deductions under Chapter VI-A or Section 10AA.
  • Limited Liability Partnerships (LLPs) are mandatorily covered under AMT, irrespective of income level.
  • Taxpayers whose adjusted total income exceeds ₹20 lakh are subject to AMT provisions.

Who is Exempt from AMT

Certain taxpayers are exempt from paying AMT:

  • Individuals, HUFs, AOPs, or BOIs with adjusted total income below ₹20 lakh.
  • Taxpayers not claiming deductions under Chapter VI-A (Part C) or Section 10AA.
  • Companies governed by MAT provisions (Section 115JB) are not covered under AMT.

Calculating AMT

AMT calculation revolves around determining the “Adjusted Total Income” and applying the applicable rate of tax. It ensures that the taxpayer pays at least a minimum amount of tax on income after adjustments.

Adjusted Total Income for AMT

The Adjusted Total Income (ATI) is computed as:
ATI = Total Income + Deductions claimed under Chapter VI-A (Part C) + Deductions under Section 10AA

For example:
If a partnership firm earns ₹30 lakh taxable income after claiming ₹8 lakh deduction under Section 80-IA, the adjusted total income becomes ₹38 lakh.

Computation of Tax Liability under AMT

Once adjusted total income is derived, the tax liability is calculated at:

  • 18.5% of Adjusted Total Income (plus surcharge and 4% health & education cess).
  • For units located in an International Financial Services Centre (IFSC) earning income in convertible foreign exchange, the AMT rate is 9%.

The final AMT payable is compared with the regular income tax payable under normal provisions. The taxpayer pays whichever is higher, ensuring the government receives at least the minimum tax.

Effect of Depreciation and Other Adjustments

Depreciation and certain notional expenses can affect AMT computation. Adjustments are made for items like:

  • Depreciation differences between Companies Act and Income Tax Act.

Deferred tax, revaluation adjustments, and notional expenses.
These ensure that book profits are not artificially reduced to lower AMT liability.

AMT Credit

Like MAT for companies, AMT credit allows taxpayers to adjust excess AMT paid in future years when their regular tax liability exceeds AMT. This mechanism ensures fairness over multiple assessment years.

What is AMT Credit?

When a taxpayer’s AMT liability exceeds the regular income tax payable, the difference becomes AMT credit. This can be carried forward to future years and set off when regular tax surpasses AMT liability.

Example:
If AMT is ₹1,85,000 and regular tax is ₹1,20,000, the excess ₹65,000 becomes AMT credit, which can be adjusted in a future year when normal tax exceeds AMT.

How to Claim AMT Credit

AMT credit can be claimed by:

  1. Calculating both AMT and normal income tax liability.
  2. Determining the excess amount paid as AMT.
  3. Reporting the same in Schedule AMT and AMTC while filing the income tax return.
  4. Adjusting it in subsequent years when eligible.

The credit is claimed through the ITR-3, ITR-5, or ITR-6 forms, depending on the taxpayer’s entity type.

Carry Forward Mechanism and Period

Taxpayers can carry forward AMT credit for up to 15 assessment years from the year in which it was first earned. If not adjusted within that period, it lapses automatically.

For instance, AMT credit earned in FY 2024–25 (AY 2025–26) can be carried forward and used until AY 2040–41.

Key Points to Remember

Compliance with AMT provisions requires awareness of reporting norms, deadlines, and penalties. Proper recordkeeping helps avoid legal issues and ensures smooth claim of AMT credit.

Filing Requirements for AMT

  • Taxpayers liable to AMT must file income tax returns electronically using the applicable ITR form (e.g., ITR-5 or ITR-6).
  • Schedule AMT and AMTC must be completed, showing details of adjusted total income , AMT computation, and credit available.
  • Maintain supporting documents like profit & loss accounts , audit reports, and deduction proofs for verification.

Compliance Deadlines

  • Return Filing Deadline:
    • Non-audited cases – 31 July of the assessment year.
    • Audited cases – 31 October of the assessment year.
  • Audit Report Filing (if applicable): 30 September of the assessment year.
    Filing within these timelines helps preserve AMT credit eligibility and avoid penalties.

Penalties for Non-Compliance

Non-compliance with AMT provisions can lead to:

  • Penalties under Section 234F (up to ₹5,000 for late filing).
  • Interest under Sections 234A/B/C for delayed payment or shortfall.
  • Possible disallowance of AMT credit if not properly reported or documented.

Conclusion

Alternate Minimum Tax (AMT) is a critical component of India’s tax structure that promotes fairness among taxpayers claiming deductions or exemptions. It ensures that all entities, whether individual or firm, pay a minimum share of tax based on adjusted total income.

By maintaining accurate records, calculating AMT correctly, and using AMT credit efficiently, taxpayers can optimize their tax liability without losing compliance benefits. Understanding AMT provisions is essential for effective tax planning , especially for LLPs and firms claiming Section 10AA or Chapter VI-A benefits.

Mohammad Abid Khan
Chartered Accountant
MRN No.: 468413
City: Varanasi

I’m CA Mohammad Abid Khan, a Chartered Accountant based in Varanasi with 10 years of experience. I specialize in GST and Income Tax, helping individuals and businesses stay compliant and optimize their taxes. I hold B.Com and M.Com degrees and enjoy simplifying finance through practical, easy-to-understand content.

Frequently Asked Questions

  • Who is liable to pay Alternate Minimum Tax (AMT)?

    AMT applies to non-corporate taxpayers—individuals, HUFs, firms, LLPs, AOPs, and BOIs—claiming deductions under Chapter VI-A (Part C) or Section 10AA with adjusted total income exceeding ₹20 lakh.

  • How is AMT calculated for taxpayers?

    AMT is calculated as 18.5% of adjusted total income (or 9% for IFSC units), plus applicable surcharge and cess.

  • What is AMT credit and how can it be claimed?

    AMT credit is the excess tax paid under AMT compared to normal tax. It can be claimed in future years when regular tax liability exceeds AMT. The credit can be carried forward for 15 years.

  • Who is exempt from AMT?

    Individuals, HUFs, or other non-corporate taxpayers with adjusted total income below ₹20 lakh or not claiming specified deductions are exempt from AMT.

  • Does depreciation affect AMT liability?

    Yes, depreciation and notional adjustments can impact AMT computation. Adjustments are made to ensure accurate calculation of adjusted total income and tax liability.