Salary Arrears and Section 89(1) Relief: How to Avoid Higher Tax on Past Year Pay

TL;DR

• Salary arrears received in lump sum push you into a higher tax slab in the year of receipt, increasing your effective tax rate.
• Section 89(1) of the Income-tax Act, 1961 provides tax relief by recomputing tax as if the arrears had been received in the years they were due.
• To claim the relief, you must file Form 10E online at incometax.gov.in before filing your ITR for AY 2026-27.
• Both the old and new tax regimes (Section 115BAC) allow Section 89(1) relief; failing to file Form 10E disallows the relief entirely.
• The relief works best when your slab rate has gone up between the original years and the current year of receipt.
• Common scenarios: 7th Pay Commission arrears, pay revision arrears in private sector, retroactive bonus, court-ordered settlement, and pension arrears.

What this means in plain terms

Salary arrears arrive as a single payment for work done across earlier years — say, a promotion approved in October 2025 with effect from April 2023. Suddenly Rs. 4 lakh of pay relating to past years drops into your AY 2026-27 income, possibly pushing you from the 20% slab into the 30% slab. The result: you pay 30% tax on income that would have been taxed at 5% or 20% had it been received in the original years.

Section 89(1) is a built-in fix. The Income Tax Act says you can spread the arrears back to the years they relate to, compute tax as if you had received them then, and pay the difference. The actual relief amount is the gap between (tax at current rates on lump sum) and (tax with spreading back). For AY 2026-27, this is one of the most under-claimed deductions among salaried taxpayers because it requires the extra step of filing Form 10E.

When Section 89(1) applies

Salary arrears

Pay relating to a prior financial year received as lumpsum in the current year. Most common in government 7th Pay Commission arrears, public sector wage revisions, and private sector retroactive promotions.

Advance salary

Salary for a future year received in advance, typically as part of a deferred compensation or sign-on. The tax treatment under Section 89(1) is symmetric — you can spread forward to the future years.

Gratuity, leave encashment, pension commutation

Special types of receipts have their own exemption sections (Section 10(10), 10(10AA), 10(10A)). If the exemption does not cover the full amount, Section 89(1) relief applies to the taxable portion.

Court-ordered settlements

If a labour court or tribunal awards arrears for years of denied promotion or wrongful termination, Section 89(1) applies if you can clearly link the amount to specific past years.

How the relief is computed

Step 1 — Compute tax on total income including arrears (current year)

This is your normal tax liability for AY 2026-27 with full salary including arrears.

Step 2 — Compute tax on total income excluding arrears (current year)

This shows what your tax would have been without the arrears.

Step 3 — Compute tax for each past year, with and without the proportionate arrears

For each year the arrears relate to, calculate tax with the additional amount and without it. Sum the additional tax across all past years.

Step 4 — Relief is the difference

If (Step 1 minus Step 2) is more than (sum of additional taxes in past years), the excess is the Section 89(1) relief. This amount is reduced from your AY 2026-27 tax liability.

Form 10E captures the working

The Income Tax e-filing portal has Form 10E with annexures that automate the computation. Fill it online before filing your ITR. Without Form 10E, the relief is disallowed by the system at processing.

Filing Form 10E online

Login and navigate

Login at incometax.gov.in. Go to e-File > Income Tax Forms > File Income Tax Forms > Form 10E.

Choose annexure

Select the relevant annexure: Annexure I for salary arrears or advance salary, Annexure II for gratuity (past services 5 to 15 years), Annexure IIA for gratuity over 15 years, Annexure III for compensation on termination, Annexure IV for commutation of pension.

Enter past year breakdown

For each prior year, enter total income, tax payable, and the proportion of arrears relating to that year. The portal computes the relief automatically.

Submit before ITR

Form 10E must be filed before you submit your ITR for AY 2026-27. Filing it after submission means the relief is disallowed at the Section 143(1) processing stage.

A real example

Rahul, 42, government employee in Lucknow. He received 7th Pay Commission arrears of Rs. 4,80,000 in FY 2025-26 covering FY 2021-22 to FY 2024-25 (Rs. 1,20,000 per year).

1. Current year (AY 2026-27) salary: Rs. 14,00,000 base + Rs. 4,80,000 arrears = Rs. 18,80,000 gross.
2. Tax under old regime on Rs. 18,80,000 minus Rs. 50,000 standard deduction minus Rs. 1,50,000 80C: Rs. 16,80,000 taxable; tax = Rs. 3,29,000 plus cess.
3. Tax without arrears: Rs. 13,30,000 taxable; tax = Rs. 1,99,000 plus cess. Additional current year tax due to arrears: Rs. 1,30,000.
4. Spreading Rs. 1,20,000 per year to FY 2021-22 to FY 2024-25 at his then-marginal 20% rate: additional tax = Rs. 24,000 per year x 4 = Rs. 96,000.
5. Section 89(1) relief = Rs. 1,30,000 minus Rs. 96,000 = Rs. 34,000 (approximately).
6. Rahul filed Form 10E in May 2026, then ITR-1 with relief claimed. Net tax saving: Rs. 34,000 plus 4% cess.

Had he skipped Form 10E, the entire Rs. 1,30,000 extra would have been payable.

What to do this week

1. Check whether you received any lumpsum in FY 2025-26 that relates to earlier years — pay revision, promotion arrears, bonus, settlement, or pension dues.
2. Get the breakdown of arrears year-wise from your employer (HR can provide a certificate or Form 10E annexure).
3. Login to incometax.gov.in and file Form 10E before submitting your ITR for AY 2026-27.
4. Run the 6-step assessment at https://myfinancial.in to see your old-vs-new regime delta, unused deductions, and insurance gap in under 10 minutes.
5. File your ITR claiming Section 89(1) relief in the prescribed field, ensuring the relief amount matches Form 10E.

FAQ

Can I claim Section 89(1) relief under the new tax regime for AY 2026-27?

Yes. Section 115BAC does not exclude Section 89(1). The relief is computed using the regime applicable to each year. If you were on the old regime in past years and on the new regime now, the working uses the regime-of-the-year rates.

What happens if I do not file Form 10E?

The relief is disallowed. CBDT mandated Form 10E filing before ITR through e-filing for AY 2014-15 onwards. The system will issue a Section 143(1) intimation reversing the relief claimed in ITR.

Does Section 89(1) apply to private sector pay revision arrears?

Yes. The provision is not limited to government employees. Any salaried person receiving arrears for past years can claim, provided the link to past years is clear and documented.

Can I claim relief if I missed it in a past year?

You can file a revised return under Section 139(5) before 31 December of the relevant assessment year, or file a rectification under Section 154 within four years. Form 10E must accompany the revised filing.

Is the relief automatic or do I have to ask my employer to compute it?

You can compute and claim yourself via Form 10E on the e-filing portal. The employer may also reflect relief in Form 16 if you submit the working to them in time. Both routes give the same result.

Does the relief apply to leave encashment received on resignation?

Yes, to the extent leave encashment is taxable (above the Section 10(10AA) limit, currently Rs. 25 lakh for non-government employees as of April 2023). Use Annexure IIA of Form 10E.

Can I claim relief on a court-awarded back pay?

Yes, if the court order clearly attributes the back pay to specific past years. Without the year-wise link, the relief is hard to defend.

Sources

• incometax.gov.in (Income Tax Department, Government of India)
• Section 89(1), Section 115BAC, Rule 21A of the Income-tax Rules, 1962
• Form 10E (online filing) — incometax.gov.in
• CBDT Circular No. 9/2016 (mandatory online Form 10E)
• finmin.nic.in (Ministry of Finance, Budget 2025 documents)

This is general information, not personalised advice. For your situation, consult a Certified Financial Planner.