How age is calculated for government exams (cut-off date)

The most common eligibility mistake is checking your age on the wrong day. Government exams don’t count your age today, on the last date to apply, or on the exam day — they count it on a cut-off date fixed in the notice.

Find the cut-off date

Look in the notice’s age section for words like “age as on”, “crucial date for age” or “age reckoned as on”. For example, the SSC CHSL 2026 notice says: “The crucial date for age reckoning is fixed as 01-08-2026.”

Different exams use different dates, and the same exam can change its date from year to year, so always check the current notice.

Read the birth-date window

Many notices also print exactly which birth dates are allowed. The SSC CHSL 2026 notice says: “Candidates born not before 02-08-1999 and not later than 01-08-2008 are eligible to apply.” That is its 18–27 age limit, written as dates. Both dates are included.

So, for that exam:

• Born on 2 August 1999: eligible, just.
• Born on 1 August 1999: one day too early — too old, unless a relaxation applies.
• Born on 1 August 2008: eligible, just.
• Born on 2 August 2008: too young.

When the window is printed, it is the safest test: compare your date of birth with the two dates and you are done.

Work it out yourself

If the notice gives only an age range, work out your age on the cut-off date:

1. Take the cut-off date, for example 1 August 2026.
2. Count only completed years: someone born on 15 March 2000 is 26 on 1 August 2026, and someone born on 15 September 2000 is still 25.
3. Compare that with the age range, after adding any age relaxation your category gets.

Read the wording of the upper limit carefully. “Must not have attained 27 years” and “not more than 27 years” are different rules, and the difference covers a whole year of birth dates. When in doubt, go by the birth-date window.

Common mistakes

• Using today’s date instead of the cut-off date.
• Forgetting relaxation, or applying it to the minimum age (it raises only the upper limit).
• Using a different date of birth from your official record. Most exams go by the date of birth in your 10th (matriculation) certificate, and it can’t be changed later.
• Reading last year’s notice. The cut-off date and limits can change every year.

Let Sahi Exam do it

Our eligibility check takes each post’s cut-off date and birth-date window from its notice and checks your date of birth against it, with your category’s relaxation — for every exam at once.