Local guide: Australia / English. AUD examples only; no live prices or quotes.
Use this budget planner to decide whether monthly take-home pay covers essentials, spending, savings and a reserve for irregular bills, then whether changing a fixed bill pays off over the months you will keep it. It works in AUD at constant prices, so it cannot show the cash left on each due date.
Start your Australian budget review with the income actually paid into your account, not a salary package figure. Then put weekly shopping, fortnightly income, quarterly bills and annual renewals on the same planning basis. The aim is to find cash commitments that are missing or duplicated before deciding which fixed cost is worth changing.
Where do rego and quarterly bills fit in a monthly budget?
Check your own vehicle registration, insurance, medical and education payments, alongside electricity, gas, water and communications. A quarterly bill is not a monthly bill multiplied by three unless usage and charges are unchanged. Use a full-year total where available and reserve one twelfth; retain the actual bill dates. Keep predictable renewals separate from a buffer for genuinely uncertain costs.
Moneysmart’s planner lets readers create custom items and compare income with expenses. That is useful when a household category does not fit a standard template. In this tool, place those necessary recurring items in other essentials and preserve an itemised note.
Do not count employer superannuation as available household cash, or deduct payroll amounts a second time from net income. For an energy or mobile change, compare equivalent service and verified total costs. Where usage-based tariffs differ, calculate a realistic monthly estimate outside this constant-price comparison first.
What goes into each field of the budget planner?
| Input | Include | Avoid |
|---|---|---|
| Income | Household take-home money available to spend | Gross pay or unconfirmed receipts |
| Essentials | Housing, utilities, food, transport, required debt and other needs | The same purchase in two categories |
| Annual bills | Known irregular bills over a year | Bills already entered monthly |
| Savings | Your deliberate monthly allocation | Calling a transfer consumption |
Local guide · AU / en-AU
Monthly household cash budget
Use your actual take-home income and planned spending, irregular-bill reserves and savings allocations.
Enter your own numbers, or load a hypothetical example. Examples are not local prices, quotes or legal rules. Results appear only after you choose Calculate.
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Do not include the same bill in monthly costs and annual bills. Savings are allocated cash, not consumption. A positive balance is not guaranteed future savings.
This calculator runs in your browser. Its code does not send, save or track your entries. Normal site visits follow the site privacy policy.
What does a checked hypothetical budget look like?
These are arbitrary illustrations, not typical incomes or recommended spending levels.
Inputs: Example one has income $3,000.00; housing $900.00, utilities $200.00, food $350.00, transport $150.00, debt $100.00 and other essentials $100.00. Add discretionary spending $200.00, annual bills $1,200.00 and monthly savings $400.00.
Formula: essentials = housing + utilities + food + transport + debt + other; reserve = annual bills ÷ 12; planned = essentials + discretionary spending + reserve + savings; balance = income − planned.
Result: Essentials total $1,800.00, the monthly reserve is $100.00 ($1,200.00 ÷ 12) and planned allocation is $2,500.00 ($1,800.00 + $200.00 + $100.00 + $400.00). The unallocated balance is $500.00 ($3,000.00 − $2,500.00). Savings are allocated cash, not consumption, and a positive result does not guarantee that cash will remain at month-end.
What to check: Example two changes only income to $2,200.00. Planned allocation stays $2,500.00, leaving a $300.00 shortfall. Identify what can actually change, and by when. Removing a savings allocation can change the arithmetic but does not remove essential bills or solve an underlying income problem.
Is changing a fixed bill worth it over the time you will keep it?
Local guide · AU / en-AU
Fixed-cost option comparison
Compare two options over the same months, including setup and a confirmed exit fee.
Enter your own numbers, or load a hypothetical example. Examples are not local prices, quotes or legal rules. Results appear only after you choose Calculate.
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Assumes constant monthly prices and the same covered service. Verify contract terms, taxes, usage charges and cancellation eligibility yourself. Recovery time is shown only when option B has a lower monthly cost. Compare costs still payable from the same starting date. Exclude non-refundable setup fees you have already paid. For an existing option A, enter 0 for its upfront cost unless a new upfront payment is still due.
This calculator runs in your browser. Its code does not send, save or track your entries. Normal site visits follow the site privacy policy.
Compare costs still payable from the same starting date. Exclude non-refundable setup fees you have already paid. For an existing option A, enter 0 for its upfront cost unless a new upfront payment is still due.
Option A total = monthly A × months + upfront A. Option B total = monthly B × months + upfront B + confirmed exit fee. Saving = A total − B total. Compare equivalent service, including taxes, usage assumptions and necessary equipment. A lower monthly headline can still cost more over a short stay.
Hypothetical example: option A costs $60.00 a month, option B costs $45.00 a month, neither has an upfront cost, and leaving A carries a confirmed $60.00 exit fee. Over 12 months, A totals $720.00 and B totals $600.00 ($540.00 + $60.00), a $120.00 saving. Over 3 months, A totals $180.00 and B totals $195.00 ($135.00 + $60.00), so B costs $15.00 more.
What to check: the extra $60.00 is recovered at $15.00 a month, which takes 4 months. If you may not keep option B that long, the lower monthly price alone does not make it the cheaper choice. A recovery period is shown only when option B is cheaper every month; otherwise compare the totals.
How the calculator handles inputs and rounding
Recovery months = max(0, ceiling((upfront B + exit fee − upfront A) ÷ (monthly A − monthly B))), only when B is cheaper each month. Otherwise no recurring-saving recovery period exists.
Zero means no extra initial premium to recover, not free service. Partial months are rounded up, so in the example $60.00 ÷ $15.00 = 4 exactly and the result is 4 months.
The calculation assumes constant prices and does not create a right to cancel or receive a refund.
When does this budget review not fit?
- Pay arrives weekly or fortnightly and bills fall due before payday. A monthly average hides the timing. The moving-out cash budget explains the weekly and fortnightly conversion and why a separate due-date list matters.
- Prices change during the comparison. If a discount ends or usage-based tariffs differ, split the period or estimate realistic usage first, because this comparison assumes constant prices.
- A large annual bill is due very soon. Reserving one twelfth from now on will not cover it; check what is already set aside and plan a separate top-up.
- Rent, food or essential bills remain unaffordable. Seek appropriate independent local support rather than treating a calculator as debt advice.
For a new home, use the moving-out cash budget as a separate exercise: a monthly surplus does not fund a deposit that is due tomorrow.
Quick decision checklist
- Reconcile a full month of transactions and look back for annual renewals.
- Mark every bill’s due date and the cash already reserved for it.
- Choose one controllable change and verify its contract before switching.
- Check actual spending at month-end and update the next plan.
Sources, scope and editorial note
- ASIC Moneysmart: Moving out of home. Used for: Moving categories and written housemate cost-sharing.
- ASIC Moneysmart: Budget planner. Used for: Household budget and custom items; retrieved text read, direct fetch timed out.
Sources checked 26 September 2026. Some pages were read through retrieved source text when direct retrieval was unavailable. This guide was prepared with AI assistance and source checking; it has not received professional financial or legal review. It is educational, not tax, investment, tenancy or debt advice. There are no loan or provider recommendations. Check current local rules and your own documents before acting.
