Enter the total income after tax ($) into the Calculator. The calculator will evaluate the 30/30/30 Rule. 

30/30/30 Rule Formula

B = ATI * .30

Variables:

  • B is the 30/30/30 Rule ($)
  • ATI is the total income after tax ($)

To calculate 30/30/30 Rule, simply multiply the income after tax by .30, and the result is what you should use for each of the 30/30/30 budgets.

How to Calculate 30/30/30 Rule?

The following steps outline how to calculate the 30/30/30 Rule.


  1. First, determine the total income after tax ($). 
  2. Next, gather the formula from above = B = ATI * .30.
  3. Finally, calculate the 30/30/30 Rule.
  4. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

total income after tax ($) = 30000