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BasicAll industries

Money Left OverMonthly budget calculator

List what comes in and what goes out, each in whatever frequency it happens, and this calculator converts everything to a month. It shows your monthly income and spending, the surplus or shortfall between them, and your savings rate: the share of income you keep.

Live budget

See where your money is going

Add income and expenses to see your available surplus or shortfall.

Net position (monthly)
$3,750
Monthly equivalent: $3,750
Income (monthly)
$6,900
Monthly equivalent: $6,900
Expenses (monthly)
$3,150
Monthly equivalent: $3,150
Status: surplus
Savings rate (net ÷ income): 54.3%
Tip: aim for 10–20% if possible.

Your budget

Income

Expenses

Notes

Budget Snapshot

Shows your monthly income, expenses, and net position.

$0$3K$5K$8K$10KIncome$7KExpenses$3KNet$4KAmount

What this calculator shows you

Money Left Over showing $3,750
  • Monthly income and expenses
  • Surplus or shortfall
  • Savings rate

How to use it

  1. Add each income and choose how often you receive it.
  2. Add each expense and how often you pay it.
  3. Read your monthly position and savings rate.

Why use it

For your clients

  • A clear starting point for any money decision.

For your business

  • Clients arrive with their numbers already worked out.

How it works

  • Every amount is converted to a monthly figure: weekly times 52 and fortnightly times 26, divided by 12; yearly divided by 12.
  • The surplus is income less expenses, and the savings rate is that surplus as a share of income.
  • Nothing is added or left out for you: tax, savings contributions and one-off costs count only if you enter them.

Worked example: With $6,500 and $400 of monthly income and $2,200, $600 and $350 of monthly expenses, income is $6,900 and spending $3,150, leaving $3,750 a month: a savings rate of 54%.

Common questions

What savings rate should I aim for?
Ten to twenty percent of income is a common goal, if possible.
Can I mix weekly and monthly amounts?
Yes. Everything is converted to monthly.

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This calculator provides illustrative estimates based on your inputs and the stated assumptions. It is not financial advice. Consider consulting a qualified financial or mortgage adviser about your circumstances.

Last updated 6 October 2026