Salary structure explained: basic, HRA, allowances and why the split matters

Two employees with identical CTCs can have different take-home pay, different PF balances and different tax bills, purely because of how their salaries are split into components. The structure is not paperwork; it is a set of levers, and basic pay is the biggest one.

The components, briefly

• Basic pay is the foundation. It is fully taxable, and several other numbers are computed from it.
• HRA (house rent allowance) is typically set as a percentage of basic. Under the old tax regime, employees paying rent can claim a partial exemption on it.
• Special or other allowances are the flexible remainder: whatever is left of gross after basic and HRA usually lands here, fully taxable unless a specific exemption applies.
• Deductions reduce gross to net: employee PF contribution, professional tax, TDS, and any recoveries.
• Employer costs such as the employer's PF share and gratuity provision sit inside CTC but outside gross, which is why CTC and take-home feel so far apart.

Why the basic percentage matters so much

Basic is the input to at least three important calculations:

1. PF. Contributions are computed on basic (plus dearness allowance, which most private companies do not pay). Higher basic means higher PF: more retirement savings, lower take-home, higher employer cost.
2. Gratuity. The statutory gratuity formula keys off last drawn basic. Doubling basic roughly doubles the eventual gratuity liability for the same tenure. Try it in a gratuity calculator to see the sensitivity.
3. HRA exemption. The exemption computation compares rent paid against a percentage of basic, so a very low basic quietly shrinks the exemption a renting employee can claim under the old regime. An HRA calculator makes this concrete.

Leave encashment at exit is also commonly computed on basic. So a company that suppresses basic to 25% of CTC is trading lower statutory costs today for lower employee benefits and, if allowances look like disguised wages, a possible PF dispute tomorrow. Most companies settle between 40% and 50% of CTC as basic, which is defensible and predictable.

A worked example: ₹6 LPA

Here is one reasonable structure for a ₹6,00,000 annual CTC, shown monthly. This is an illustration, not a template to copy blindly.

• Basic: ₹20,000 (40% of CTC)
• HRA: ₹10,000 (50% of basic)
• Special allowance: ₹15,760
• Gross per month: ₹45,760
• Employer PF (12% of basic): ₹2,400
• Gratuity provision (approx. 4.81% of basic): ₹962
• Statutory bonus, insurance or other employer costs would further adjust the remainder in a real structure
• Monthly CTC: ₹49,122, roughly ₹5.89 LPA; round the special allowance up to hit ₹6,00,000 exactly

From the employee's side, gross of ₹45,760 then loses employee PF of ₹2,400, professional tax of around ₹200 depending on state, and TDS as applicable. Take-home lands somewhere near ₹42,000 to ₹43,000 before tax, and the employee learns the eternal lesson: CTC is not salary.

Practical rules for setting structures

1. Decide the basic percentage as policy, apply it to everyone at the same grade, and write it down. Ad hoc structures negotiated per offer become unexplainable within a year.
2. Do not invent exotic allowances to dodge tax. Most of them are fully taxable anyway, and the ones that are not carry documentation requirements you will not enforce.
3. Recheck structures when salaries are revised. A raise given entirely as special allowance silently erodes the basic percentage you decided on in rule one.
4. Make the structure visible to the employee. A payslip that clearly shows components, and a system where employees can see their own payslips and structures, removes most of the "why is my in-hand less" tickets. ZekoHR keeps structures versioned per employee so the payroll run always computes from the structure in force that month.

Get basic right, keep the rest simple, and apply it consistently. That is most of salary structuring.

This article is general information, not tax or legal advice. Component treatment, exemptions and statutory computations depend on current law and individual facts; confirm with a qualified professional.