Section 89 Relief on Salary Arrears 2026: How Form 10E Stops Arrears From Pushing You Into a Higher Slab

A pay revision, a delayed bonus, or a lump-sum gratuity payout can all land in a single financial year and push your total income into a tax slab you'd never have hit if the money had arrived on schedule. Section 89(1) of the Income Tax Act exists precisely to undo that penalty — but it isn't automatic. The relief only survives scrutiny if you file a separate form, Form 10E, before you submit your return, and skipping that one step is the single most common way salaried taxpayers lose a relief they were otherwise entitled to.

What Section 89 Relief Actually Compensates For

The problem Section 89 solves is bunching: income that actually relates to earlier years gets taxed entirely in the year you receive it, at that year's slab rates, even though a portion of it would have attracted lower tax had it been paid on time. Say a pay revision backdated over two years lands as a ₹3 lakh arrear payment in FY 2025-26. Taxed entirely in the receipt year, some of that ₹3 lakh might fall into your highest slab. Spread back across the two years it actually relates to, using each year's own slab rates, the same amount might have attracted meaningfully less tax. Section 89 relief is the difference between these two outcomes, refunded back to you as a reduction in the tax otherwise payable — never an increase, only ever downward.

The Comparison Behind the Number, in Plain Terms

You don't need to compute the relief by hand — the actual calculation compares four figures: the tax on your total income including the arrears in the year you received them; the tax on your total income excluding the arrears in that same year; the tax that would have applied in each of the earlier years if the arrears had been included in that year's income; and the tax that was actually assessed in those earlier years without the arrears. The relief equals the excess of the first gap (receipt year, with vs without arrears) over the second (each relevant year, with vs without its share of the arrears) — and only if that number is positive. If spreading the arrears back wouldn't actually have saved you any tax, there's no relief to claim, and none is forced on you either.

The Step Almost Everyone Skips: Filing Form 10E Before Your ITR

Form 10E is a separate electronic form, filed under Rule 21AA, and it must be submitted on the income tax e-filing portal before or alongside your return — not after. Claiming Section 89 relief directly inside your ITR's tax computation schedule without having filed Form 10E first is one of the most common reasons the Centralised Processing Centre disallows the claim outright, even when your Form 16 clearly shows the arrears and even when the relief calculation itself was correct. The portal doesn't cross-check your ITR against a Form 10E that was never filed — it simply reverses the relief and raises the tax demand back up, typically flagged in the intimation you receive under Section 143(1) after processing.

It Isn't Limited to Salary Arrears

Section 89 relief also applies to gratuity received in excess of the Section 10(10) exemption limit, commuted pension not otherwise fully exempt, and compensation on termination or voluntary retirement — each uses a different annexure within Form 10E (arrears use Annexure I; gratuity, Annexure II; termination compensation, Annexure III). If you've received a large gratuity payout this year, our gratuity tax exemption guide covers how much of it is tax-free before Section 89 relief even becomes relevant on the remainder. And if arrears show up as part of your Form 16 this year, our Form 16 guide walks through exactly where in Part B to find the break-up you'll need for Form 10E, before you move on to our complete ITR filing guide for the rest of the return.