The gap between the CTC your offer letter promised and the amount that actually lands in your bank account every month confuses almost everyone the first time they see it — and it's not a trick, it's just several layers of deductions and employer contributions stacked together.
CTC (Cost to Company) includes your gross salary plus everything the employer spends on you indirectly: their share of EPF contribution, gratuity provision, insurance premiums, and other benefits. None of that employer-side portion ever touches your bank account directly.
From your gross salary, your own EPF contribution (typically 12% of basic salary) is deducted before you see the money, going into your retirement account. Professional tax, if applicable in your state, is deducted too, though the amount is usually small.
Then comes income tax, deducted as TDS based on your declared regime and investments, spread across the year rather than as one lump deduction.
What's left after all of this is your actual take-home pay — often 15-25% lower than the CTC figure, depending on your salary structure and tax slab. The Salary Tax calculator on this site can help you estimate this gap for your specific numbers, and understanding it upfront makes salary negotiations and budgeting far less confusing.
Frequently asked questions
What is a salary calculator with old vs new regime comparison?
It takes your gross annual salary and computes your income tax liability under both the old and new tax regimes side by side, factoring in standard deduction, applicable slabs, cess, and rebates, so you can see which regime results in lower tax for your specific numbers.
What is the key difference between the old and new tax regimes?
The old regime has fewer, wider slabs but allows numerous deductions and exemptions like 80C, HRA, and home loan interest, while the new regime offers lower slab rates and a larger tax-free threshold but removes almost all deductions except the standard deduction.
Which regime is the default now?
The new tax regime is the default option for all taxpayers; if you want to be taxed under the old regime with its deductions, you must explicitly opt for it, either when filing your return or by informing your employer for TDS purposes.