Company note · No invented rate · Updated 22 October 2026

TCS night shift allowance: use the rate on your letter

TCS night shift allowance is a payroll rule for a project, a location, and a grade. It lives in the offer letter, the compensation annexure, and the HR circular for that account. Two people on night rosters can be on different rules. A number from a forum thread is not a payslip.

What to look for on the document

You are looking for a line, not a rumour. On the annexure or the circular, find any of these:

• A component named night shift allowance, NSA, or shift allowance.
• A percent, or a rupee amount per night. Sometimes the rupee amount is per hour instead. Per hour is a night rate, not a percent of CTC.
• Whether the line sits inside CTC or is paid over and above CTC.
• A different figure for weekends, or a rule that the shift must start after a stated clock time.
• The working-day count, if the formula uses daily CTC. If the document is silent, 240 is only a calculator default.

The employee portal is where the current circular is posted. This site cannot see it, and it will not guess the menu path. If the portal and the appointment letter disagree, ask HR which document payroll uses this month. Keep CTC out of that email if you can describe the component name instead.

Common structures, not a TCS rate

Check your HR policy. Common structures in Indian IT are:

• Percent of daily CTC. Daily CTC = annual CTC ÷ working days. Per night = daily CTC × the percent in the letter. The steps and the 20/25/30 tables are in how to calculate night shift allowance.
• Fixed amount per night. Per night = the rupee slab. This month = slab × nights that qualified. A weekend slab is a second multiplication. Add the two results. The shift allowance calculator note shows that addition.

Whether your TCS account uses either structure is not something this page can answer. The sentence above describes structures that show up across Indian IT letters. It does not say TCS uses 20%, 25%, 30%, or any rupee amount.

A formula check, after you have your own inputs

Once the letter gives you a percent, the arithmetic is ordinary. Suppose — and this suppose is not a TCS circular — the letter in your hand says 20% and the CTC on that same letter is ₹9,00,000, with 240 working days and 10 qualifying nights.

Replace 20%, ₹9,00,000, 240, and 10 with the values you actually found. If the letter says ₹500 a night instead of a percent, ignore this table and multiply ₹500 by the qualifying nights. Putting a forum’s 25% on top of a fixed slab double-counts.

You can type your real figures on the calculator. They stay in the browser. A share link would put them in the address, so skip sharing if the CTC should stay private.

When the payslip is a different number

• The component is inside CTC, so it is not extra cash on top of the salary credit.
• A night was rostered but did not meet the start-time rule, so payroll dropped it.
• Leave or a partial month changed the count of qualifying nights.
• Tax, provident fund, or professional tax came off the component before it reached the bank.
• The account’s circular was revised after the letter you are holding.

Take the payslip line and the circular to the question, not a generic percent. For how IT letters usually separate “inside CTC” from “extra,” see night shift allowance in Indian IT companies. A different employer’s note, written the same way, is Sagility night shift allowance.

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Not affiliated with TCS. Not HR advice. Author: Ramesh Choudhary.