Why is my effective hike lower than the announced percentage?

The announced hike percentage applies to your gross CTC. But your increment is taxed at the marginal rate, which is the rate applicable to the highest slice of your income. If your total income crosses Rs 10 lakh, the top portion is taxed at 30% plus 4% cess under the old regime. So a 15% hike on a Rs 12 lakh CTC adds Rs 1.8 lakh gross, but after 30% tax on the incremental slice, you actually pocket significantly less. The effective hike percentage is always lower than the announced figure.

How does a salary hike affect my income tax?

A salary hike increases your taxable income. The additional tax depends entirely on which tax slab the increment falls into. Income between Rs 7 lakh and Rs 10 lakh (new regime) is taxed at 10 to 15%. Income above Rs 10 lakh gets taxed at higher rates up to 30%. Only the portion of the increment that crosses a slab boundary gets taxed at the higher rate. The tax on your pre-hike income stays the same.

Should I choose old regime or new regime after an appraisal?

The new tax regime is usually better after an appraisal if your 80C and 80D investments are small or fully utilized. If you have significant deductions (Rs 1.5 lakh in 80C, home loan interest, HRA), the old regime can still come out ahead. The key rule: if your total deductions and the standard deduction together exceed the regime's break-even point (roughly Rs 3.75 lakh in deductions for someone in the 30% slab), stick to old regime. Use this calculator with both regime options to compare.

How is tax calculated on a salary increment?

Tax on the increment is calculated as the difference between your new CTC's annual tax and your current CTC's annual tax. Both figures are computed after applying the relevant standard deduction, Section 80C, and Section 80D deductions if you are on old regime. The difference is the additional tax you will pay because of the hike. Dividing this by 12 gives the monthly TDS increase.

What is the standard deduction in the new tax regime?

The standard deduction in the new tax regime is Rs 75,000 per year for salaried employees. Under the old regime, the standard deduction is Rs 50,000. The new regime does not allow additional deductions for 80C, 80D, HRA, or home loan interest beyond the standard deduction.

What is the Section 87A rebate and does it apply to my hike?

The Section 87A rebate is a full tax waiver for incomes up to a certain threshold. Under the new tax regime, if your taxable income (after standard deduction) is Rs 12 lakh or below, you pay zero tax. Under the old regime, the rebate applies if taxable income is Rs 5 lakh or below. After an appraisal, if your income crosses these thresholds, you lose the rebate entirely and your tax jumps significantly. This calculator accounts for the 87A rebate correctly.

How do Section 80C and 80D deductions affect my post-appraisal tax?

Under the old regime, 80C allows up to Rs 1.5 lakh in deductions for ELSS, PPF, EPF, life insurance, and similar instruments. Section 80D allows up to Rs 25,000 for health insurance (Rs 50,000 for senior citizens). These deductions lower your taxable income, which reduces both the tax before and after the hike. If your investments already max out 80C, an additional rupee of income after the hike is fully taxable at your marginal rate.

What is the effective hike percentage after tax?

The effective hike percentage is the net annual take-home benefit as a percentage of your current CTC. It is always lower than the announced hike. For example, if your CTC goes from Rs 12 lakh to Rs 13.8 lakh (a 15% hike) and Rs 45,000 of the Rs 1.8 lakh increment goes to tax, your net benefit is Rs 1.35 lakh. As a percentage of the original Rs 12 lakh CTC, that's an effective hike of 11.25%.

How does appraisal affect my monthly TDS?

Your employer calculates TDS (Tax Deducted at Source) monthly based on your projected annual income. After an appraisal takes effect, the employer recalculates TDS from the effective month. The monthly TDS increases by approximately one-twelfth of the additional annual tax. This calculator shows both the annual additional tax and the monthly take-home change so you can plan your cash flow.

Can I negotiate my salary structure to reduce the tax on my hike?

Yes. Requesting a higher component for tax-free allowances (LTA, meal coupons, NPS employer contribution) instead of raw basic pay can reduce the taxable portion of the increment. The employer's NPS contribution under Section 80CCD(2) is deductible up to 10% of basic salary under both regimes. Structuring the hike partly through NPS rather than basic can meaningfully reduce the tax bite on the increment.

What is the tax rate on increments above Rs 10 lakh (new regime)?

Under the new regime for FY 2025-26, income between Rs 12 lakh and Rs 16 lakh is taxed at 15%. Income between Rs 16 lakh and Rs 20 lakh is taxed at 20%. Income between Rs 20 lakh and Rs 24 lakh is taxed at 25%. Income above Rs 24 lakh is taxed at 30%. All tax is subject to 4% health and education cess. The calculator applies these slabs correctly to determine tax on the incremental income.

Fermor is a financial platform built for India. The calculators are the distribution layer: free tools that give real answers to real financial questions. The product being built is an automated financial action system that uses the Account Aggregator framework to connect real financial accounts and close the gap between knowing what you should do with your money and actually doing it. Fermor is not a comparison site. The calculators earn trust. The action platform is the product.

Annual Appraisal Impact Calculator: Salary Hike Take-Home Calculator

What Is an Annual Appraisal Impact Calculator?

An annual appraisal impact calculator computes the actual monthly take-home increase from a salary hike after income tax. It separates the announced gross hike from the net amount that reaches your bank account, showing exactly how much of the increment goes to taxes.

Every appraisal season in India, employees receive a hike percentage. The number sounds straightforward: a 15% hike on a Rs 12 lakh CTC means a Rs 1.8 lakh annual increase. But the Rs 1.8 lakh falls into your marginal tax slab, not your average slab. If you are in the 30% band, Rs 54,000 of that increment goes directly to the government. Your real monthly benefit is not Rs 15,000 but closer to Rs 10,500.

This calculator applies the correct Indian tax tables (FY 2025-26) under both the old and new tax regimes to give you the real number. Use the Income Tax Calculator to see your full annual liability, and this tool to understand the incremental impact of your appraisal specifically.

How a Salary Hike Affects Your Income Tax

A salary hike increases your total taxable income, and the additional income is taxed at the marginal rate, not your average rate. Marginal rate is the rate applicable to the last rupee of your income: the slab your total income falls into at the top.

Under the new regime for FY 2025-26, the slabs that apply to increments are:

New Regime Tax Slabs FY 2025-26. Standard deduction Rs 75,000 applies. Tax on slabs above Rs 12 lakh taxable.
Taxable Income Range	Tax Rate
Up to Rs 4 lakh	0%
Rs 4 lakh to Rs 8 lakh	5%
Rs 8 lakh to Rs 12 lakh	10%
Rs 12 lakh to Rs 16 lakh	15%
Rs 16 lakh to Rs 20 lakh	20%
Rs 20 lakh to Rs 24 lakh	25%
Above Rs 24 lakh	30%

All figures are subject to 4% health and education cess. Incomes up to Rs 12 lakh taxable (after standard deduction of Rs 75,000, so gross income up to Rs 12.75 lakh) attract zero tax under the Section 87A rebate in the new regime.

Why Your Effective Hike Is Less Than the Announced Percentage

The effective hike is always lower than the announced percentage because the increment is taxed at the marginal rate while the entire CTC is compared. Consider this worked example:

Example: Rs 12 lakh CTC, 15% hike, new tax regime FY 2025-26. Annual figures.
Item	Before Appraisal	After Appraisal
Annual CTC	Rs 12,00,000	Rs 13,80,000
Gross Increment		Rs 1,80,000
Annual Income Tax	Rs 42,500	Rs 81,100
Additional Tax on Increment		Rs 38,600
Net Annual Take-Home	Rs 11,57,500	Rs 12,98,900
Net Monthly Take-Home Increase		Rs 11,783
Announced Hike	15.0%
Effective Hike (after tax)	11.7%

The announced hike is 15%. The effective hike, after the Rs 38,600 additional tax, is approximately 11.7%. The gap between the two is entirely due to income tax on the incremental income.

How Your Tax Slab Determines the Real Value of Your Hike

The higher your current CTC, the more of your increment falls in the higher tax slabs, and the smaller your effective hike. An employee earning Rs 6 lakh CTC gets most of a 15% hike at zero or 5%, while an employee earning Rs 20 lakh loses 20-25% of the increment to tax.

For this reason, two employees with the same announced hike percentage can have very different effective hikes depending on where their income lands in the slab structure.

Use the New Tax Regime Calculator to see your marginal slab clearly, or the Old Tax Regime Calculator if you have significant deductions. Your marginal rate is the percentage to apply to any new income, including the increment from an appraisal.

Old Regime vs New Regime After an Appraisal

After an appraisal, the question of regime choice becomes more pressing because the higher income may change the break-even point. The old regime allows deductions (80C, 80D, HRA, home loan) that reduce taxable income. The new regime offers lower slab rates but no additional deductions beyond the Rs 75,000 standard deduction.

Old Regime deduction limits applicable when you opt for old tax regime.
Deduction	Section	Maximum Limit
Standard Deduction	16(ia)	Rs 50,000
ELSS, PPF, LIC, ULIP, EPF, tuition	80C	Rs 1,50,000
Health Insurance (self + family)	80D	Rs 25,000 (Rs 50,000 for seniors)
NPS employer contribution	80CCD(2)	10% of basic salary
Home Loan Interest	24(b)	Rs 2,00,000 (self-occupied)
HRA exemption	10(13A)	Least of: actual HRA, 50%/40% of basic, rent minus 10% basic

The general rule: if your deductions under the old regime total more than Rs 3.75 lakh (at the 30% slab) or more than Rs 1.87 lakh (at the 15% new-regime slab), the old regime saves more tax. Below these thresholds, the new regime wins. Toggle the regime in this calculator to compare your specific situation.

How Appraisal Affects Your Monthly TDS

TDS (Tax Deducted at Source) is deducted monthly by your employer based on your projected annual income and the regime you have declared. After an appraisal, the employer recalculates TDS from the month the revised salary is effective.

The additional monthly TDS is approximately one-twelfth of the additional annual tax. If your appraisal adds Rs 48,000 in annual tax, your monthly TDS increases by Rs 4,000. The actual deduction depends on how many months remain in the financial year when the hike takes effect, since the employer spreads remaining tax across the balance months.

If your appraisal is effective from October, the employer needs to recover the additional tax for the full year from October to March. That means higher-than-expected monthly TDS deductions for six months. Plan your liquid cash for the months immediately after the hike letter, not just the month after the increment credit.

Income Tax Calculator

See your full annual tax liability under both regimes, including all deductions and surcharges.

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How to Maximize Take-Home After an Appraisal

Three strategies reduce the tax cost on your increment without reducing your gross income.

Request an NPS employer contribution: Under Section 80CCD(2), your employer can contribute up to 10% of basic salary to your NPS account. This deduction is available under both old and new regimes, reducing taxable income without touching your 80C limit.
Restructure the increment toward flexible pay components: LTA (Leave Travel Allowance) is exempt up to actual travel expenditure twice in four years. Meal coupons are exempt up to Rs 50 per meal. Food coupons (sodexo-style) reduce taxable pay. Negotiate these components into the revised pay structure.
Maximize 80C before year-end if on old regime: ELSS investments can be made as late as March 31. A Rs 1.5 lakh 80C investment at 30% marginal rate saves Rs 46,800 in tax. Time the investment to offset the additional tax from the increment.
Compare regimes with the new income level: The break-even point shifts when your income rises. What was optimal last year may no longer be optimal after the hike. Use this calculator to test both regimes at your new CTC.

The Section 80C Calculator shows which instruments to invest in to maximize your deduction, and the Section 80D Calculator covers health insurance premium planning for the old regime.

How to Use This Calculator

Enter your current annual CTC: Use the slider or click the value to type. Enter the CTC before the appraisal.
Set your hike percentage: Enter the announced hike percentage from your appraisal letter (e.g., 15%). The calculator shows your new CTC immediately.
Select your tax regime: Toggle between old regime and new regime. The result updates instantly. If you are on old regime, click More settings to enter your 80C and 80D investments.
Read the result panel: The large lime number is your monthly take-home increase. Below it: tax on the increment, effective hike percentage, and the donut chart showing what fraction of the gross increment you actually keep.
Compare regimes: Toggle between old and new regime to see which gives you a higher effective take-home at your new income level. The calculator recalculates both tax amounts and the net benefit instantly.

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Frequently Asked Questions

An annual appraisal impact calculator shows the real take-home increase from a salary hike after accounting for income tax. When your CTC goes up, a portion of the increment falls in a higher tax slab, so the actual monthly benefit in your bank account is always lower than the gross increment. This calculator computes the exact tax on the increment and shows your effective monthly gain.

Disclaimer: All calculations on this page are indicative only and based on FY 2025-26 tax slabs. Tax laws change each year with the Union Budget. Actual tax liability depends on your full income, deductions, exemptions, and HRA structure. This calculator does not account for surcharges applicable above Rs 50 lakh or Rs 1 crore income, NPS employer contribution deductions, or other regime-specific nuances. Consult a SEBI-registered investment adviser or qualified CA before making financial decisions.