Predict NDIS budget risk before overspend

What this tool is doing

You enter one NDIS support category at a time (Core, Capacity Building, or Capital), your plan start and end dates, the total budget for that category, and how much has been spent up to a date you choose (the snapshot date). The tool compares how much of that category budget you have used with how much of the plan period has passed, estimates an average weekly spend from history so far, and projects a date when the remaining balance would hit zero if that weekly pace continued unchanged.

The optional plan management choice (self, plan, or NDIA managed) is for your own context on the review screen. It does not change the calculation.

Why spend can look fine until it is not

NDIS category budgets are often checked monthly or less often. A small increase in hours, a rate change, or a run of invoices landing together can push weekly spend higher without an obvious single event. Over many weeks that shows up as a larger share of the budget used than the share of plan time that has passed. This tool is built around that simple comparison so you can spot divergence earlier than a single end of month total might.

Real plans also have variation: school holidays, health episodes, plan reviews, and one off purchases. The model does not know those events. It only uses the numbers and dates you supply.

Budget used, time elapsed, and status bands

Time elapsed is the share of calendar days from plan start to your snapshot date, relative to the full plan length (start to end). Budget used is current spending as a percentage of the total category budget you entered. Both are capped at 100% for display.

The coloured status uses the gap between those two percentages:

• On track: budget used is at most 5 percentage points above time elapsed (for example, 40% of the category budget used while 35% of plan time has passed).
• Warning: budget used is more than 5 and at most 15 percentage points ahead of time elapsed.
• Critical: budget used is more than 15 percentage points ahead of time elapsed.

These labels are rules of thumb for planning conversations, not NDIA definitions and not a guarantee of how long funds will last.

Weekly burn rate and projected exhaustion

Weekly burn rate here means total spending to the snapshot date divided by the number of weeks from plan start to that date (partial weeks count as fractional weeks). If the snapshot is on or immediately after the start date, the weekly figure can be unstable or zero; the tool still needs a sensible snapshot date inside the plan for the comparison to mean anything.

Projected exhaustion takes the category budget minus spending to date, then divides by the same weekly burn rate to estimate how many weeks the balance would last at that pace. The date is moved forward from the snapshot date by that many weeks. If the maths implies the balance would last beyond plan end, the tool reports that funds are on track to last the full plan at that pace.

This assumes future weeks look like past weeks. It ignores upcoming plan changes, price limits, staggered invoicing, and anything else the NDIA or providers might apply.

If you see warning or critical

Use the output as a prompt to verify facts, not as a diagnosis. Check recent invoices and service agreements, confirm scheduled hours, and compare figures to the NDIS myplace portal or your plan manager’s statements. Talk with the participant, family, support coordinator, or providers about what is driving cost and what can change within plan rules.

If funding may not last until plan end, document what you find and explore plan review or variation pathways through the usual NDIA processes. This site does not provide individual financial or planning advice.

Accuracy, limits, and where to trust the record

Official balances, committed amounts, and paid claims can differ from spreadsheets or provider estimates, especially for plan managed and NDIA managed funding where invoicing and payment timing add lag. Always reconcile this exercise with current myplace data and your plan document.

The tool is a free planning aid for one category per run. It does not model price guides, quote rules, multiple categories at once, or nonlinear spend patterns. Use it to support judgement and timing; use NDIA systems and professional advice for decisions that affect a participant’s supports or funding.