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Budget Calculator: What Is Left Each Month?

Calculate your monthly budget from take-home income, fixed bills, everyday spending, annual expenses, debt payments and savings. See your surplus or shortfall.

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Budget Calculator: What Is Left Each Month?
Regular available income for the whole household you are planning for.
For example rent, utilities, phone and monthly subscriptions. Exclude the items entered separately below.
For example groceries, transport and leisure. Do not repeat fixed bills.
Annual insurance, yearly subscriptions or planned purchases. Enter the full annual amount, not a monthly share.
The full payment including interest. Do not also enter it in fixed bills.
For emergency savings or other goals. The annual-bill reserve is already deducted separately.

This calculation runs on our server and is not stored – neither your result nor your entry.

Example: the calculation with the default values

The defaults are example values, not an average. Enter your own numbers and press “Calculate” to run it with yours.

Available for everyday spending

$950.00

Monthly annual-bill reserve

$100.00

Planned savings

$200.00

This is the unallocated amount after everyday spending and your savings goal. Check upcoming due dates and your actual account balance before spending it.

Monthly income $2,500.00
Monthly fixed bills $1,100.00
Annual-bill reserve $100.00
Monthly debt payments $150.00
Monthly savings $200.00
Monthly everyday spending $650.00
Left after your plan $300.00

Assumptions behind this calculation

  • Monthly plan with unchanged amounts. Annual bills are divided over twelve months and rounded up to whole cents. Due dates and account balances are not included; count each item only once.

How we calculate

Take-home income minus fixed bills, everyday spending, debt payments, the annual-bill reserve and planned savings gives your monthly balance. A negative result stays visible as a shortfall.

The reserve is the annual total divided by twelve, rounded up to whole cents. Available everyday spending is income minus fixed bills, the reserve, debt payments and savings, before your entered everyday expenses.

Count every payment in only one field. This model spreads annual bills evenly; it does not say whether your account can cover a bill on its due date. The defaults are an invented worked example.

The reasoning behind these numbers, with sources, is in the article: Monthly budget: plan what is really left.

Frequently asked

How do I calculate my monthly budget?

Subtract planned expenses and reserves from take-home income. The example leaves $300.00 a month after your plan. Replace the example values with your own amounts.

How do I budget for annual expenses?

Enter the full annual total in the yearly field. The default $1,200.00 requires a monthly reserve of $100.00. Do not also count it in fixed bills.

Is the balance money I can spend today?

No. This is a monthly plan, not an account balance. Check bills already due, existing reserves and irregular income separately.

What does a negative result mean?

Planned spending and savings exceed income. Check for double counting and missing income, then review affordability. If essentials are unaffordable, seek appropriate local support early.

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