Business guides
Short, practical explanations of the calculations behind our tools. Each guide starts with the direct answer, then shows the formula and worked examples.
Guides cover the rules that don't change often: how GST is added to or removed from a price, why a 25% markup is only a 20% margin, how CTC turns into in-hand salary, how PF and gratuity are calculated, and how couriers decide the weight they bill. Every figure is worked through in rupees so you can follow along with your own numbers, and each guide links to the calculator that does the maths for you.
For recent rule changes — such as the ₹25,000 PF wage ceiling or the GST 2.0 rates — and practical scenarios, read the BizToolsIndia blog.
GST & Tax
Business Calculators
Salary & HR Calculators
- GuideCTC vs In-Hand Salary: Why Your Take-Home Is LowerWhat sits between your CTC and the salary credited to your account.
- GuideHow Gratuity Is Calculated in India (15/26 Formula)The 15/26 formula, eligibility, part-year rounding and the ceiling.
- GuidePF Contribution Explained: Employee, Employer, EPF and EPSWhere the 12% + 12% goes: EPF, EPS, the wage ceiling and examples.