Financial Calculators
Budget Calculator
Organize take-home income, regular expenses, debt payments and savings in one monthly view. See what remains and compare broad spending categories.
Build your household budget
Budget Calculator
Build a monthly take-home budget with visible category totals and a surplus or shortfall estimate.
Planning results
How this calculator works
Annual income or expenses are divided by 12 independently. Total expenses include savings allocations. Surplus = take-home income − all allocations. Savings rate = savings contributions ÷ income. The optional 50/30/20 reference compares Needs, Wants, and Savings/Debt Goals; mappings are shown beside each field and custom items are explicitly classified. Debt minimums are grouped with goals for this optional reference, not treated as optional payments. No tax calculation is performed.
Results are estimates for planning purposes only and do not constitute financial, investment, tax, lending, or legal advice.
Your calculation is processed in your browser and is not stored by this tool.
Budget entries are processed locally by this tool. Results are based on your inputs and are not financial, debt or tax advice.
How to use the budget calculator
- 1
Enter take-home income and choose monthly or annual input.
- 2
Add housing, utilities, food, transport, insurance, childcare and other living costs.
- 3
Enter minimum debt payments and planned savings or investing.
- 4
Add up to ten custom expenses for costs not already listed.
- 5
Review monthly cash flow, category shares and the optional 50/30/20 comparison.
How the monthly budget is calculated
Annual entries are divided by 12 so everything can be compared on a monthly basis. The calculator totals living expenses, debt payments and planned savings allocations. Remaining cash flow equals take-home income minus all entered outflows. A positive amount is unassigned money; a negative amount means the plan spends or allocates more than the income entered.
Monthly budget example
Assume monthly take-home income is $5,000. Living expenses total $3,100, debt payments are $500 and planned savings are $700. Total outflow is $4,300, leaving $700 per month unassigned. That remaining amount could cover irregular costs, increase a goal or create more breathing room.
Needs, wants and goals
The summary groups entered categories into needs, wants and financial goals. This can make a long expense list easier to review. The optional 50/30/20 reference compares the plan with 50% for needs, 30% for wants and 20% for goals. It is a broad starting point, not a universal rule. High housing costs, medical needs, family duties or debt repayment can make another structure more realistic.
Using salary or annual income correctly
Use actual take-home income after payroll deductions, not gross salary, unless you first estimate taxes and deductions elsewhere. If income changes each month, a cautious baseline or an average from several months may be more useful. Keep annual expenses such as insurance renewals and school fees in the plan by converting them to monthly amounts.
Important limitations
- Planning only: the calculator does not connect to a bank, track transactions or pay bills.
- Savings as an allocation: planned savings are counted as an outflow from available monthly income.
- Irregular costs: repairs, gifts and annual bills require your own monthly allowance.
- 50/30/20: the reference is optional and may not fit your circumstances.
- Currency neutral: choose one currency and use it consistently for all entries.
Related tools
Budget Calculator FAQ
Should a budget use gross or take-home income?
This calculator is designed for take-home income available after tax and payroll deductions.
Can I enter annual figures?
Yes. Choose annual input and the calculator converts the amount to a monthly value.
Are savings counted as an expense?
They are treated as planned allocations so you can see how much monthly income remains.
What does a negative remaining amount mean?
Entered expenses, debt and savings exceed the take-home income entered.
Do I have to follow the 50/30/20 budget?
No. It is an optional reference, not a rule or personalized recommendation.
Does the calculator connect to my bank?
No. It uses only the amounts you type and does not import transactions.
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