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Retroactive Payroll Calculator

Salary Arrears Calculator

Calculate your retroactive salary arrears for DA hikes, backdated promotions, or 7th CPC pay revisions. Get a month-wise itemized statement, NPS deductions, and Section 89(1) Form 10E relief estimates.

Quick Answer: How Salary Arrears are Calculated

Salary arrears equal the monthly difference between your revised pay (Basic + DA + HRA) and the amount previously drawn, multiplied by the number of backdated months, minus statutory deductions like NPS (10% of Basic+DA difference) and TDS.

Enter Arrears Period & Pay

Arrears Time Period
₹
Deductions on Arrears
10%
Net Arrears Payout₹5,997Net cash credited to account
Total Gross Arrears₹7,140Before statutory cuts
Total Deductions₹1,143NPS, GPF & TDS
Month-by-Month Arrears Statement (3 Months)
MonthBasic DiffDA DiffHRA DiffGross DiffDeductionsNet Arrear
Jan 2026₹0₹1,428₹952₹2,380-₹381₹1,999
Feb 2026₹0₹1,428₹952₹2,380-₹381₹1,999
Mar 2026₹0₹1,428₹952₹2,380-₹381₹1,999
Total₹0₹4,284₹2,856₹7,140-₹1,143₹5,997

Monthly Cashflow

Arrears Breakdown

DA Arrears
HRA Arrears
Total Deductions

How to Claim Section 89(1) Tax Relief on Arrears (Form 10E)

Receiving a large lump-sum arrears payment in one financial year can push you into a higher income tax slab. Under Section 89(1) of the Income Tax Act, you can calculate relief by distributing the arrears back to the original financial years when they were earned.

Steps to Calculate Section 89(1) Relief:
  1. Calculate total tax on current year’s income including arrears.
  2. Calculate total tax on current year’s income excluding arrears.
  3. Find Difference A: (Step 1 − Step 2) = Extra tax charged this year.
  4. Calculate tax for the previous year(s) including arrears allocated to that year.
  5. Calculate tax for the previous year(s) excluding arrears.
  6. Find Difference B: (Step 4 − Step 5) = Tax that would have been paid in past years.
  7. Tax Relief Allowed = Difference A − Difference B. Deduct this amount directly from your final tax bill.

* Note: You must submit Form 10E online on the Income Tax e-Filing portal before filing your ITR to claim Section 89(1) relief.

Worked Examples: Salary & DA Arrears Calculation

Example 1: 3-Month DA Hike Arrears

Basic Pay: ₹56,100

DA revised from 50% to 53% (+3% hike)

Monthly DA Arrear = ₹56,100 × 3% = ₹1,683 / month

Total Gross Arrears for 3 Months = ₹1,683 × 3 = ₹5,049

NPS Deduction (10%) = ₹505 → Net In-Hand = ₹4,544

Example 2: Backdated Promotion Arrears

Old Basic: ₹44,900 (Level 7) → New Basic: ₹47,600 (Level 8)

Basic Difference = ₹2,700 / month

DA (50%) on Basic Diff = ₹1,350 / month

Monthly Gross Arrear = ₹4,050 / month

Total 6-Month Gross Arrears = ₹4,050 × 6 = ₹24,300

Frequently Asked Questions

Rohit Kushwaha

Rohit Kushwaha

Software Engineer & Creator of mysalarycalculator.in

Verified Creator

I’m Rohit Kushwaha, a Software Engineer with 3+ years of experience in developing web applications and digital solutions. By combining technology with practical financial tools, I built mysalarycalculator.in to help Indian professionals easily understand their salary, taxes, EPF, gratuity, and take-home income.

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