Calculate arrears from salary revision

Name: Salary Calculator
Brand: Superworks
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When your salary is revised retroactively, arrears = (new salary − old salary) × number of months in the arrear period.

Pro-Rata Math Live Calculation Visual Breakdown

Salary details

Enter old and new salary, and the number of months the revision applies retroactively.

Old monthly salary

New monthly salary

Arrears period (months)

Total arrears payable

₹60,000

Total arrears for 6 months at ₹10,000 / month difference

Old salary₹50,000 / mo

New salary₹60,000 / mo

Monthly difference₹10,000 / mo

Arrears months6 months

Total arrears₹60,000

How salary arrears work

When a salary increase is approved later than its effective date, the back-dated difference is paid as arrears in one lump sum.

01
Determine difference
Find the monthly delta between new and old salary.
```
diff = new − old
// e.g. 60K − 50K = 10K
```
02
Identify arrear period
Count the months between the effective date of the revision and the actual disbursal.
```
months = arrears_period
// e.g. 6 months
```
03
Multiply
Total = monthly difference × arrear months. Plus components like PF/ESI on the difference may need adjustment.
```
arrears = diff × months
```

FormulaArrears = (New Salary − Old Salary) × Months in Arrears PeriodStatutory deductions (PF, ESI) may also need back-calculation on the arrears portion.

Why we use this formula by default.
Indian payroll convention, statutory references, and the SaaS tooling that runs payroll all converge on this approach. Below are the authoritative sources we cross-checked.

Labour Code

Code on Wages, 2019

Wage arrears framework and back-pay timeline rules.

Tax Relief

Section 89(1) Income Tax Act

Relief mechanism to spread arrears taxation across original years.

Form 10E

Form 10E (Section 89 Relief)

Mandatory ITR form for claiming relief on arrears.

Payroll SaaS

RazorpayX Payroll

Arrears processing with retroactive PF/ESI/TDS adjustments.

Tax Reference

ClearTax Arrears Guide

Step-by-step Section 89 relief computation guide.

Consultancy

hinote.in

HR practice for salary revisions and back-pay handling.

FAQs about salary arrears

Is salary arrears taxable?

Yes. Arrears are taxed as salary income in the year of receipt — which can push you into a higher tax slab. Section 89(1) relief lets you spread the tax burden over the years it should have been taxed.

What is Section 89(1) relief?

Tax relief on arrears: calculate tax as if arrears were received in the original year(s), and pay the difference vs current-year tax. File Form 10E to claim. Most useful when arrears push you into a higher bracket.

Does PF apply on arrears?

Yes. EPF (12% employee + 12% employer) applies on the basic+DA portion of arrears, with retroactive credit to your EPF account. PT may also apply per state rules.

What about ESI on arrears?

ESI (0.75% employee + 3.25% employer) applies if the new gross is within ₹21K wage ceiling. If the revision pushes gross above ₹21K, ESI stops from the revision month.

When is bonus arrears paid?

Statutory bonus arrears (if revised mid-year) follow the same rule: difference × eligible months, with cap of ₹7,000 monthly basis as per the Act.

What's the difference between arrears and back pay?

Same thing in payroll terminology. "Back pay" is more common in legal/compliance contexts; "arrears" is more common in payroll/HR. Treatment is identical.

How do employers process arrears in payroll?

A separate "arrears" line item in the salary slip, with applicable deductions recalculated retrospectively. Modern payroll software auto-handles this.

Can arrears include benefits beyond basic pay?

Yes. If the revision affects HRA, allowances, or other benefits, all of those need back-calculation too. PF/ESI adjustments follow the new basic+DA values.

Ready for the next step?

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Superworks payroll auto-calculates arrears with retroactive PF/ESI/TDS adjustments — including Section 89(1) relief computation for employees.

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Calculate arrears from salary revision

Salary details

How salary arrears work

Determine difference

Identify arrear period

Multiply

Code on Wages, 2019

Section 89(1) Income Tax Act

Form 10E (Section 89 Relief)

RazorpayX Payroll

ClearTax Arrears Guide

hinote.in

FAQs about salary arrears

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