Rohit joined a ₹30.5 lakh role as a software engineer in Bengaluru and had to pick a tax regime on the joining form. New regime: ₹1,83,069 a month, income tax of ₹4,11,418 a year. Old regime with no real deductions: ₹1,62,269 a month, because ₹30.5 lakh gets taxed ₹6,61,018 there. Same CTC, ₹20,800 a month difference, decided by one checkbox.
What ₹30.5 lakh CTC actually contains
Standard 50% basic structure at ₹30.5L:
| Component | Annual | Monthly |
|---|---|---|
| Basic salary | ₹15,25,000 | ₹1,27,083 |
| HRA (50% of basic) | ₹7,62,500 | ₹63,542 |
| Special allowance | ₹5,06,148 | ₹42,179 |
| Employer PF (12% of basic) | ₹1,83,000 | ₹15,250 |
| Gratuity provision (4.81%) | ₹73,353 | ₹6,113 |
| Total CTC | ₹30,50,000 | ₹2,54,167 |
Employer PF plus gratuity comes to ₹2,56,353. That money sits inside the ₹30.5 lakh CTC and never lands in your salary account. Your gross salary, the part payroll actually pays, is ₹27,93,648 a year.
Take-home calculation (new regime)
| Item | Annual | Monthly |
|---|---|---|
| Gross salary (excl. employer PF + gratuity) | ₹27,93,648 | ₹2,32,804 |
| Less: Employee PF | ₹1,83,000 | ₹15,250 |
| Less: Professional tax (Karnataka) | ₹2,400 | ₹200 |
| Less: Income tax | ₹4,11,418 | ₹34,285 |
| In-hand | ₹21,96,829 | ₹1,83,069 |
Tax working: gross ₹27,93,648 minus the ₹75,000 standard deduction leaves taxable income of ₹27,18,648. Slab tax works out to ₹3,95,594, and after cess the final income tax is ₹4,11,418.
New regime vs old regime at this salary
Under the new regime, income tax works out to ₹4,11,418 a year. Switch to the old regime with no major deductions and the same ₹30.5 lakh is taxed ₹6,61,018 a year, pulling monthly in-hand down to ₹1,62,269. That’s a gap of ₹2,49,600 a year, gone for ticking the wrong box.
The old regime only catches up if you genuinely stack deductions: the full ₹1.5 lakh under 80C, ₹25,000 of 80D health cover, ₹50,000 of NPS under 80CCD(1B), and real HRA exemption from rent paid. Without most of that, stay on the new regime. Run your actual numbers both ways in the take-home calculator before you commit on the joining form.
How take-home moves across the salary ladder
| CTC | Monthly take-home | Income tax / year |
|---|---|---|
| ₹29L | ₹1,75,942 | ₹3,68,552/yr |
| ₹30L | ₹1,80,693 | ₹3,97,129/yr |
| ₹31L | ₹1,85,445 | ₹4,25,707/yr |
| ₹32L | ₹1,90,196 | ₹4,54,284/yr |
| ₹30.5L | ₹1,83,069 | ₹4,11,418/yr |
All figures: new regime, Karnataka professional tax, 50% basic structure, FY 2025-26. Plug your own CTC and city into the take-home salary calculator for an exact number.
Sources
- Income Tax Act 1961: Section 115BAC new regime slabs, ₹75,000 standard deduction, Section 87A rebate (FY 2025-26)
- EPFO: 12% employee plus 12% employer PF contribution on basic salary
- Payment of Gratuity Act 1972: 4.81% gratuity provision formula
- State Professional Tax Acts (Karnataka rate used as the representative figure)