Bills on the month they land
Annual and quarterly costs go in on the month they are due, rather than being smeared into a monthly average that never matches your bank balance.
Put in your pay and your bills. See what is really left in each of the next twelve months, including the ones where rego, insurance and the water bill all land at once.
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Your tightest month: November
$845 short
An average month leaves $898, but two months go backwards: November and August. Put $586 a month aside and they stop being a surprise.
November: $2,330 of bills (Home and contents insurance, Council rates). $845 short.
| Month | Irregular bills | Left over |
|---|---|---|
| November | $2,330 | −$845 |
| December | — | $1,485 |
| January | $290 | $1,195 |
| February | $480 | $1,005 |
| March | $865 | $620 |
| April | $290 | $1,195 |
| May | $480 | $1,005 |
| June | — | $1,485 |
| July | $290 | $1,195 |
| August | $1,720 | −$235 |
| September | — | $1,485 |
| October | $290 | $1,195 |
A budget built on an average month says you are $1,485 ahead every month. In November you are $845 behind. Setting $586 aside each month covers it, with $1,744 in the pot up front because a big bill lands before the set-aside has built up.
Save it to a Funance account and these numbers become your Budget tab: each bill on the month it lands, planned against actual as the year goes.
Starts your 14 days of Pro, no card, no bank login. During the trial your numbers sync to our Sydney database so they follow you across devices, unless you turn sync off from the account menu; on the free plan they stay in this browser.
A short note when tax rates or thresholds move. Confirmed opt-in, a couple of emails a month at most.
The problem with a category budget is that it describes an average month, and there is no such thing. Rego, insurance, school fees and the quarterly water bill do not average out. They arrive.
So the planner above does not average them. Each bill sits on the month it is due, and the answer is your tightest month rather than a tidy monthly figure that is only true when nothing happens.
It starts from your salary, not a guess at take-home pay. Funance works out tax on 2026-27 ATO rates with the , and repayments, and for couples it does it per partner, because Australia taxes individuals.
Then the Budget tab tracks what actually happens, line by line, and keeps the history. After two or three months you stop guessing at your grocery number and start reading it. On a phone, ticking off a bill takes about ten seconds.
−$1,050
July left $1,050 less than the plan said it would.
$865 of that is the rego, which was always coming in July. Groceries and the water bill were another $345, and everything else came in $160 under. Because each line keeps its plan and its actual, you can see which one moved and fix August's number, not just feel worse about July.
On a laptop: planned, actual and the gap
| Line | Planned | Actual | Diff |
|---|---|---|---|
| Income | |||
| Salaries, combined | 8,600 | 8,600 | 0 |
| Spending | |||
| Mortgage Paid | 2,400 | 2,400 | 0 |
| Groceries Paid | 1,000 | 1,180 | −180 |
| Utilities and water Overdue | 320 | 485 | −165 |
| Car rego Due 26th | 0 | 865 | −865 |
| Everything else | 2,100 | 1,940 | +160 |
| Left over | 2,780 | 1,730 | −1,050 |
On a phone: what's still owing
Illustrative figures for a two-income household. Not real user data.
Plan the year above, then track each month against it. Every account starts with 14 days of Pro, no card, and the Budget tab stays free for good.
How it works
Annual and quarterly costs go in on the month they are due, rather than being smeared into a monthly average that never matches your bank balance.
Every line carries both numbers and the difference between them, with month-by-month history. The point is not to be under budget everywhere, it is to know which line moved and why.
Gross salary in, take-home out, on 2026-27 ATO rates. For couples it is calculated per partner, and shared costs can be split between you on every line.
Opens straight into what is still owing and what is overdue, with one tap to mark it paid. Full planning stays on the laptop where it belongs.
Questions
Related
Subscriptions are priced monthly because monthly sounds small. Annualised and stacked together they are frequently one of the largest discretionary lines in a household budget, and the least examined.
Subscription tracker →Two households with identical debts and identical budgets can finish years apart, purely on payoff order. Funance shows both strategies side by side with your numbers, then gives you a date.
Debt repayment calculator →Most finance apps are international products with the currency symbol swapped. Funance is built around the ATO, the states and the super system, because those are the rules that actually decide what you keep.
Personal finance app for Australia →Every account starts with 14 days of Pro, no card needed. Keep it for $79 a year, or carry on with the free plan: Overview, Budget and Debts, for good. No bank login either way.
14 days of Pro free, no card · then the free plan, or $79 a year · no bank login