MoneyBasisMonthly Budget Planner
What it estimates
This planner compares monthly income and expenses, calculates remaining cash flow and shows a remaining-income rate based on the numbers you enter.
How it calculates
Remaining-income rate = (income − expenses) / income
Surplus is take-home income minus the categories you enter. The remaining-income rate is remaining cash flow divided by income; it is unavailable at zero income. Remaining cash is not automatically savings.
Inputs
Monthly income · Expense categories
Included / not modeled
Included
- Entered monthly income and expenses
- Remaining cash flow
- Remaining-income rate
Not modeled
- Automatic allocation of remaining cash to savings
- Timing of individual bills within the month
Assumptions & limitations
- Enter after-tax income. Annual bills should be converted to monthly amounts.
- Categories are monthly cash amounts, not annual totals.