The gratuity calculation formula depends on whether or not the employer is covered under the Payment of Gratuity Act, 1972. The formula for calculating gratuity in each case is as follows:
Any employer with 10 or more employees is covered under this Act. In this case, this is the gratuity calculator formula used:
Gratuity = Last Drawn Salary x Tenure of Service x 15/26
For instance, say your last drawn salary (i.e. basic pay plus dearness allowance) is Rs. 1,00,000 and you have been continuously employed with your current company for 10 years and 9 months. The tenure in this case will be rounded up to 11 years. The gratuity amount will be computed as follows.
Gratuity:
= Last Drawn Salary x Tenure of Service x 15/26
= Rs. 1,00,000 x 11 years x 15/26
= Rs. 6,34,615
If an employer is not covered under the Act, the formula for gratuity calculation will be as follows:
Gratuity = Last Drawn Salary x Tenure of Service x 15/30
So, let us take the same example outlined above and apply it to an employer who is not covered by the Payment of Gratuity Act, 1972. The gratuity amount in this case will be computed as shown below.
Gratuity:
= Last Drawn Salary x Tenure of Service x 15/26
= Rs. 1,00,000 x 11 years x 15/30
= Rs. 5,50,000