Salary Arrears Relief Calculator (Sec 89)

Salary

Receiving salary arrears in a lump sum can push you into a higher tax slab. Section 89(1) relief undoes that bunching penalty — estimate your relief and net tax here.

Free · No sign-up · Private6 min readUpdated 27 July 2026

In short: Section 89(1) relief equals the extra tax caused by arrears being taxed entirely in the year of receipt, minus the extra tax that would have arisen had the arrears been received in the year they relate to. You claim it by filing Form 10E before your income-tax return; without Form 10E the relief is disallowed.

Your inputs

Results

Section 89 relief

₹0

Extra tax if taxed this year

₹46,800

Arrears bunched into this year

Extra tax if spread to past year

₹46,800

Arrears added to the year they relate to

Net tax after relief

₹93,600

This year’s tax − Section 89 relief

Extra tax on arrears: this year vs past year

The extra tax the arrears create if bunched into this year versus spread to the year they relate to.

Section 89(1) relief working

Section 89(1) relief working
Scenario	Income	Tax
This year — without arrears	₹10,00,000	₹46,800
This year — with arrears	₹13,00,000	₹93,600
Past year — without arrears	₹7,00,000	₹0
Past year — with arrears added back	₹10,00,000	₹46,800

All figures use New-regime slabs incl. 4% cess. Relief equals the extra tax this year minus the extra tax had arrears fallen in the past year.

Formula

Relief = max(0, Extra tax (arrears taxed this year) − Extra tax (arrears added to the relevant past year))

Extra tax this year: Tax on (current income + arrears) − tax on current income
Extra tax past year: Tax on (past income + arrears) − tax on past income
Relief: Never negative — arrears cannot increase your total tax under 89(1)

Step-by-step calculation

Worked with the default values.

1
Extra tax if taxed this year
₹93,600 − ₹46,800
= ₹46,800
2
Extra tax if added to past year
₹46,800 − ₹0
= ₹46,800
3
Section 89(1) relief
max(0, ₹46,800 − ₹46,800)
= ₹0
4
Net tax after relief
₹93,600 − ₹0
= ₹93,600

How it works

The calculator first finds the extra tax the arrears create when added entirely to this year’s income — the bunching effect that can jump you into a higher slab.
It then finds the extra tax those same arrears would have caused had they been received in the past year they actually relate to, when your income was different.
The relief under Section 89(1) is the difference between the two — the amount of the slab-progression penalty the law refunds, giving you a lower net tax bill.

Examples

This year ₹10,00,000, arrears ₹3,00,000, past-year income ₹7,00,000

The arrears bunched into this year attract more tax than they would have in the lower-income past year, so Section 89(1) grants relief for the difference, cutting your net tax below the this-year figure.

This year and past year at the same income level

When both years sit in the same slab, the arrears attract identical extra tax either way, so the relief is nil — Section 89 only helps when the arrears would have been taxed more lightly in the past year.

Understanding the Salary Arrears Relief Calculator (Sec 89)

Why a lump sum of arrears costs you more tax

India taxes income on a progressive slab basis, so each additional rupee can be taxed at a higher rate. That design is fair when income arrives evenly, but it penalises you when several years’ worth of pay lands in a single financial year. A pay-commission revision, a delayed settlement or a court award can dump arrears on top of your current salary, stacking them into the highest slabs and inflating your tax far beyond what those earnings would have attracted if paid on time.

Section 89(1) exists precisely to neutralise this bunching penalty. It does not exempt the arrears; it simply ensures you pay no more tax than you would have had the money been received in the years it relates to.

How the relief is worked out

The calculation compares two scenarios. First, the extra tax this year: your tax on current income plus arrears, minus your tax on current income alone. Second, the extra tax in the past year: the tax those arrears would have added to the earlier year’s income they relate to.

If the arrears push you into higher slabs now than they would have back then, the difference is your relief.
If the past year was taxed as heavily, there is no penalty to relieve, and the relief is zero.

The relief is subtracted directly from your tax liability — it is a rebate on tax, not a deduction from income — so its impact is rupee-for-rupee.

Claiming it correctly with Form 10E

The relief is worthless if you do not claim it properly. Form 10E must be filed on the income-tax e-filing portal *before* you submit your return. Skip it and the department will disallow the relief and send a notice, even if your maths was perfect.

Collect your taxable income for each year the arrears relate to.
File Form 10E first, then enter the relief figure in your ITR.
For arrears spanning several years, split them year by year in the form’s annexures.

Used well, Section 89(1) turns an unwelcome tax shock into a fair outcome — you are taxed as though your employer had paid you on schedule, and the lump-sum timing costs you nothing extra.

Pros

Reverses the slab-progression penalty of receiving several years’ pay in one lump sum.
Available under both the Old and New tax regimes with the same underlying logic.
Can produce substantial savings when arrears relate to a low-income earlier year.
Straightforward to claim once Form 10E is filed on the e-filing portal.

Cons

Requires mandatory Form 10E filing — the relief is disallowed without it.
Delivers nothing when the past year was taxed at the same or a higher slab.
Multi-year arrears need year-by-year computation this single-year view does not fully capture.

Tips

1File Form 10E on the income-tax portal before you submit your ITR, not after.
2Gather your taxable-income figures for each year the arrears relate to before starting.
3Split multi-year arrears across their respective years for the most accurate relief.
4Keep the arrears breakup letter from your employer as supporting evidence.
5Recompute the relief under both regimes if you are undecided which to opt for this year.

Frequently asked questions

Everything you need to know about the Salary Arrears Relief Calculator (Sec 89).

What is Section 89(1) relief?

Section 89(1) of the Income-tax Act gives relief when you receive salary in arrears or in advance that pushes your income into a higher tax bracket in the year of receipt. It recalculates your tax as if the arrears had been taxed in the years they actually relate to, and refunds the extra tax caused purely by the bunching into a single year.

Why do arrears cause a higher tax bill?

India uses progressive slab rates, so income is taxed at higher percentages as it rises. When several years’ arrears land in one financial year, they stack on top of your current income and are taxed at the top slabs. Had that money been spread across the original years, more of it would have fallen in lower slabs.

Do I have to file Form 10E?

Yes. Filing Form 10E on the income-tax portal is mandatory to claim Section 89(1) relief. If you claim the relief in your return without filing Form 10E first, the department will disallow it and issue a notice. File Form 10E before submitting your ITR.

How do I file Form 10E?

Log in to the income-tax e-filing portal, go to e-File → Income Tax Forms, and select Form 10E. Enter your current-year income, the arrears amount and the year(s) they relate to, and the annexures compute the relief. Submit it before filing your ITR and then enter the relief figure in the return.

Does Section 89 apply to the New tax regime?

Yes, Section 89(1) relief is available under both the Old and New regimes. This calculator computes the relief using New-regime slabs. The principle is identical either way — you compare the extra tax from bunching against spreading the arrears back.

Which incomes qualify for Section 89 relief?

Relief covers salary received in arrears or in advance, arrears of family pension, and certain lump-sum payments such as gratuity and commuted pension. It does not apply to every windfall — it is specifically for amounts that relate to earlier or later years but are received in a bunched lump sum.

Can the relief ever be zero?

Yes. If the arrears would have been taxed at the same or a higher slab in the past year they relate to, there is no bunching penalty to relieve, so the relief is nil. The relief formula is capped at zero and never adds to your tax.

What years do I use for the past-year income?

Use your taxable income for the specific financial year the arrears relate to. If arrears span multiple past years, Form 10E requires you to split them year by year. This calculator models a single relevant past year; for multi-year arrears, run it per year or rely on Form 10E’s annexures.

Is the relief the same as a deduction?

No. A deduction reduces your taxable income; Section 89(1) relief is subtracted directly from your tax liability. It is a rebate on tax already computed, which is why it is applied after your tax on the arrears-inclusive income is worked out.

Will my employer give this relief automatically?

Your employer may factor Section 89 relief into TDS if you submit the arrears details and Form 10E particulars, but this is not guaranteed. It is safest to compute the relief yourself, file Form 10E, and claim it in your own return to be sure it is applied.

Methodology & sources

How the Salary Arrears Relief Calculator (Sec 89) is calculated, and where the underlying rules come from.

How we calculate it

Every result is produced by a single, shared and tested financial-formula library used across the whole site — so the maths is consistent from one calculator to the next. Figures are estimates based on the inputs you enter and standard assumptions (such as regular compounding and constant rates); real-world outcomes vary with taxes, fees and changing rates. All calculations run in your browser — nothing you type is stored or sent to a server.

Sources & references

Editorial policy & disclaimer. FinCalcHub provides free educational tools and estimates — not personalised financial, tax or investment advice. Verify important decisions with a qualified professional. Read our editorial approach, disclaimer and privacy policy.

Reviewed by Dhirendra Bisht, Founder & Lead Engineer, FinCalcHub — last reviewed 27 July 2026.