Why CTC isn't your take-home pay
Cost to Company (CTC) is the total amount your employer spends employing you — basic salary, allowances, employer's PF contribution, gratuity accrual, and often the value of other benefits like insurance. Several of those pieces never reach your bank account directly: employer PF contribution goes into your retirement account, not your monthly pay, and your own PF contribution, professional tax, and income tax are all deducted before you're paid.
The calculation, step by step
Start with your annual CTC. Your basic salary is typically 40-50% of CTC (this varies by employer). Employee Provident Fund (EPF) is 12% of basic salary, deducted from your pay; your employer contributes a matching 12% of basic, which is part of your CTC but doesn't appear in your take-home pay. Professional tax (a small state-levied tax, commonly around ₹2,400/year, capped by state rules) is also deducted. What's left is taxed under your chosen regime, and the remainder after tax is your take-home pay.
A worked example
On a ₹12,00,000 annual CTC with a 40% basic salary split: under the new tax regime, the income tax works out to ₹0 (within the new regime's rebate threshold for this income level), and take-home pay comes to about ₹96,200/month (₹11,54,400/year) — roughly 96% of CTC, since PF and professional tax are the only real deductions here.
Under the old tax regime with the same CTC and no additional deductions claimed, income tax works out to about ₹1,50,322/year, bringing take-home pay down to about ₹83,673/month (₹10,04,078/year) — about 84% of CTC. The gap between the two regimes narrows or reverses once you factor in deductions like 80C, HRA, or home loan interest, which only the old regime allows.
What moves the gap between CTC and take-home
A higher basic-salary percentage of CTC increases your PF deduction (more goes to retirement, less to take-home pay now) but also increases HRA and gratuity calculations, which are usually based on basic salary — so it isn't purely a downside.
Voluntary Provident Fund (VPF) contributions, if you opt in, reduce take-home pay further but build retirement savings at the same guaranteed EPF interest rate. Company-provided perks structured as reimbursements (rather than cash allowances) can sometimes reduce your taxable income, depending on how your employer structures the CTC.
Comparing two job offers by CTC alone can be misleading if their basic-salary percentages, benefit structures, or your two tax-regime choices differ — always compare actual projected take-home pay, not just the headline CTC number.