Why Your In-Hand Salary Is Lower Than CTC Divided by 12
CTC includes PF, gratuity and tax that never reach your account. Worked examples at three CTC levels show where the money goes and what the tool assumes.
Why CTC divided by 12 is not your salary
An offer letter says "CTC Rs. 12 lakh". Divide by 12 and you get Rs. 1,00,000 a month. The first payslip shows something closer to Rs. 88,000 or even less. Nothing has gone missing; CTC, or cost to company, is what the employer spends on you, not what lands in your bank account. This post walks through what sits between the two numbers, using our CTC to take-home calculator as a worked model.
This is general information about how salary structures work, not tax or financial advice. Every employer structures pay differently, so use it to ask better questions, not to replace your actual salary breakup.
What is inside a CTC
CTC usually bundles several things, and only some are paid to you monthly:
- Basic salary. The base of the structure. Many other items are calculated as a percentage of it.
- HRA and other allowances. Paid monthly and mostly taxable as salary, though the HRA exemption can reduce tax in the old regime.
- Employee provident fund. A deduction from your pay, commonly 12% of basic, which goes into your own PF account.
- Employer provident fund and gratuity. The employer's side. These are costs counted in the CTC that you do not receive monthly. Gratuity is payable only on leaving after the qualifying service period, and you can estimate it with the gratuity calculator.
- Variable pay, insurance, meal cards and similar items. These may be in your CTC, but they may be paid yearly, conditionally, or as a benefit rather than cash.
Then tax (TDS) is deducted on the taxable part, and some states add professional tax. The result is your in-hand salary.
How our calculator builds its estimate
The CTC to take-home calculator has one input, annual CTC, and applies a fixed set of assumptions:
- Basic is 40% of CTC. HRA is 50% of basic, and a special allowance of 20% of CTC is shown.
- Employee PF is 12% of basic.
- Gratuity is basic ÷ 26 × 15 for the year. It is removed from CTC because you do not receive it in hand.
- Gross salary is CTC minus PF minus gratuity. A standard deduction of Rs. 75,000 is subtracted, and new-regime tax (slabs, rebate, surcharge, 4% cess) is computed on the result.
- Monthly take-home is (gross salary − tax − PF) ÷ 12.
Notice one thing the tool does: it subtracts PF once as a deduction and once while building gross salary. The structure assumes the PF amount is part of the CTC and is also what you contribute, so it treats it as leaving your pocket in both steps. This is a modelling choice of the tool, not a rule, and your own payslip will show how your employer actually treats employer PF. That is a good reason to treat the output as a rough estimate.
Worked examples at three CTC levels
All figures below come from a script that mirrors the tool's formula, rounded to the nearest rupee.
| Annual CTC | CTC / 12 | Monthly basic | Annual gratuity | Estimated tax a year | Take-home a month |
|---|---|---|---|---|---|
| Rs. 6,00,000 | Rs. 50,000 | Rs. 20,000 | Rs. 11,538 | Rs. 0 | Rs. 44,238 |
| Rs. 12,00,000 | Rs. 1,00,000 | Rs. 40,000 | Rs. 23,077 | Rs. 0 | Rs. 88,477 |
| Rs. 18,00,000 | Rs. 1,50,000 | Rs. 60,000 | Rs. 34,615 | Rs. 1,25,629 | Rs. 1,22,246 |
For the Rs. 12 lakh case: employee PF is Rs. 57,600 a year (Rs. 4,800 a month), annual gratuity is Rs. 23,077, so gross salary is Rs. 11,19,323. After the Rs. 75,000 standard deduction, taxable income is Rs. 10,44,323, which is under the Rs. 12 lakh level at which the rebate makes tax nil under the slabs the tool uses. Tax is zero, and take-home is about Rs. 88,477 a month, roughly 11.5% below CTC/12.
At Rs. 18 lakh the gap is bigger in rupees: take-home is about Rs. 1,22,246 against Rs. 1,50,000, since tax of about Rs. 10,469 a month starts to apply on top of PF and gratuity. The slab and rebate figures in the tool matched reputable coverage of the Union Budget 2025 when we checked, but tax rules are revised often, so verify the current slabs at the Income Tax Department.
Two offers, same CTC, different in-hand pay
The tool's fixed 40% basic is an assumption, but the effect of changing that share is real, and you can reason about it without the tool. Take Rs. 12 lakh CTC with three basic shares, using the same formula with only the basic percentage changed:
| Basic share of CTC | Monthly basic | Monthly take-home |
|---|---|---|
| 30% | Rs. 30,000 | Rs. 91,358 |
| 40% | Rs. 40,000 | Rs. 88,477 |
| 50% | Rs. 50,000 | Rs. 85,596 |
A higher basic means a larger PF deduction and larger gratuity, so in-hand pay falls by about Rs. 2,900 a month for each 10-point step in this example. The trade-off is that you are building more retirement savings and a bigger gratuity. Neither offer is better by itself; it depends on whether you value cash now or savings later. Note that the 30% and 50% rows come from changing one assumption in our formula by script; the tool itself only runs at 40%.
Questions to ask before accepting an offer
- What is the fixed component, and what is variable? Variable pay is often not guaranteed and not paid monthly.
- What is basic, and how much is PF? Is employer PF inside the CTC?
- Is the gratuity part of the CTC, and what is the notice or vesting condition?
- Is health insurance or any benefit included in the CTC at the company's cost?
- Which tax regime will payroll assume by default, and can you switch?
Limits of the estimate
- The 40% basic, 50% HRA and 20% special allowance split is a fixed assumption. It will not match your offer letter unless you were given exactly that structure.
- The tool uses new-regime tax only. It does not apply HRA exemption, section 80C or other old-regime deductions, and it does not calculate old-regime tax. See the income tax calculator for the new-regime rules it models.
- Variable pay, bonuses, insurance premiums, professional tax and NPS employer contributions are not modelled.
- The PF treatment described above is a simplification. Real payslips may differ.
- The estimate is for comparing offers roughly. Final numbers come from the salary breakup the employer provides.
A sensible routine: get the full breakup from the recruiter in writing, enter the CTC in the tool for a first estimate, then compare the estimate with the breakup line by line to see where they differ.