Edit any line item. Every change re-runs the engine — surplus, debt payoff dates and net worth all recompute.
live · engine-drivenbudget
Monthly income
$11,975
salary + rental (recurring)
Monthly expenses
$6,918
all categories
Monthly debt
$4,258
loans, cards & mortgage
Net monthly
+$799
income − expenses − debt
Income
Monthly income streams
$10,400 now
$$$$$
fromplan
$
fromplan
$
fromplan
$
fromplan
Total income (now)$11,975
Not shown, because this screen is this month's picture: Lanka Airbnb (self-funds Lanka mortgages) (from Oct 2027). Future income is a projection — edit it on the Model Editor or in a scenario.
Edit any amount, label or start month. Untick a stream to keep it on record without the plan relying on it — useful for income that is real but irregular. Ramps let a venture's income grow over time; the engine re-runs on every change. A stream you add here has no matching category on Actuals vs Budget until one is mapped to it, and that page will say so rather than quietly dropping its budget.
Expenses
Categories
$2,520/mo
Item
Amount
$
$2,859/mo
Item
Amount
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$0/mo (→ $3,500 scheduled)
Item
Amount
$206/mo
Item
Amount
$
$
$
$
$
$
$
$1,000/mo
Item
Amount
$
$50/mo
Item
Amount
$
$
$283/mo
Item
Amount
$
Scheduled
Upcoming budget changes
From
Line
Change
Jan 2027
Increase — Jan 2027Living cost increases (+$500 / 6 mo)
starts at $500
Jan 2027
Salary (Avanade)Income
$10,400 → $11,400
Jun 2027
Land tax + council rates — $3,400/yr ÷ 12Land & rates (annual, budgeted monthly)
Increase — Jan 2030Living cost increases (+$500 / 6 mo)
starts at $500
Jan 2030
Salary (Avanade)Income
$12,400 → $12,900
The budgets above show this month. These are dated changes the engine already costs — the month each one lands is the first month charged at the new amount, and months before it keep what they were budgeted at.
Debt
Monthly debt repayments
Debt
Monthly
Balance
Rate
Jacaranda
$
$11,288
19.99%
CBA (credit card)
$
$4,100
16.00%
Plenti
$
$11,485
13.00%
Revolut
$
$13,995
9.99%
Humm (credit card)
$
$1,600
27.30%
Canberra mortgage
$
$335,000
6.50%
Total debt payments
$4,258
Effective-dated line items mean a change from (say) Sep 2026 doesn't rewrite history. Empty From/Until = whole horizon.
Financial Position
Assets, debts and the full monthly cashflow to Mar 2030 — on one screen, for any scenario combination.