Savings rate calculator
The share of income left after expenses.
Fill in the fields and the result will appear here automatically.
The savings rate measures after-tax income left after the entered expenses for the same period. It is a cash-budget measure: income of 100,000 and expenses of 70,000 leave 30,000, or 30%. Equal percentages at different incomes leave different amounts. Comparing months requires consistent income and expense definitions; the rate alone does not establish financial independence or reserve adequacy.
How it works
Formula and logic
Savings S = income I − expenses E; rate = S/I×100%. Income must be positive, expenses nonnegative, with one currency and period. Expenses above income give a negative rate and warning, rather than an error. This is a budget remainder, not a net-worth change. Do not count transfers between your own accounts as another expense. Money rows normally round to whole units, while amounts below one unit retain fractions; the rate uses unrounded values.
Example
Income 100,000 and expenses 70,000 give savings of 30,000 and a rate of 30%. Income of 50,000 and expenses of 60,000 give a −10,000 remainder and −20% rate; equal income and expenses give 0%.
Fields and units
- Income for the period — $
- Expenses for the period — $
How to use
- — Enter income for a month or another period.
- — Enter expenses for the same period.
- — Compare the rate with earlier periods.
Method and limitations
- Calculation method
- Formula and logic
- Data or methodology source
- BEA, United States: the national saving-rate definition differs from a personal cash budget CFPB, United States: after-tax 50/30/20 as an adjustable planning guideline
- Limitation
- Income left after entered expenses. Asset revaluation, net worth, savings interest, future income and personal savings adequacy are not determined. Apply expense and debt classifications consistently.
FAQ
What is a good savings rate?
The calculation does not establish a safe 10% or 20% threshold. The share needed depends on obligations, reserves and chosen goals. For example, 30% of 100,000 is 30,000, while 30% of 30,000 is 9,000; read the percentage with its amount.
What counts as income?
Money that actually arrived during the period, after tax. Keep one-off amounts separate or the rate will swing.
Why is my rate negative?
Expenses exceeded income, so the gap was covered from savings or borrowing. The calculator flags this on its own line.
How do I compare savings rates over different periods?
Use income and expenses covering the same period in each calculation. Do not pair annual income with monthly expenses. A quarter or year can summarise irregular flows better, but does not solve cash shortages on a particular payment date.