The 28-Day Rule: Why Claiming Early Actually Matters

If you've read anything about NSW CTP claims, you've probably seen the “28 days” reference. It's one of the most consistently important deadlines in the scheme, and understanding exactly what it controls (and what it doesn't) helps you avoid an entirely avoidable loss of entitlement.

What the 28-day rule actually controls

The insurer generally needs your claim for statutory benefits within 28 days of the accident for weekly payments to be back-paid to the day after the accident. It's not a hard cut-off for claiming at all — you can generally still claim up to 3 months after the accident — but claiming after 28 days can mean weekly payments only start from the date you actually lodge, rather than from the day after the accident.

What if you're already past 28 days?

For accidents on or after 1 April 2023, claiming after 28 days but within 3 months may still allow back-payment from the day after the accident, provided you give a full and satisfactory explanation for the delay. If the insurer doesn't reject your explanation within 14 days, it's treated as accepted — so a missed 28 days isn't automatically a lost entitlement, but it does put the burden on you to explain the delay.

Why the rule exists in the first place

Early notification helps insurers start assessing a claim while evidence is fresh, and helps get treatment approvals moving sooner. The scheme is built around the idea that acting quickly benefits both the injured person and the process generally — which is exactly why the incentive (back-paid benefits) is attached to it.

Common reasons people miss it

• Not realising an injury was significant until symptoms worsened days later.
• Being focused on hospital treatment and simply not knowing the CTP process existed yet.
• Assuming the other driver's admission of fault meant a claim would start automatically — it doesn't.
• Not knowing which insurer to notify.

The bottom line

Notify the insurer as soon as you reasonably can, even before you have every document ready. If you're already outside 28 days, don't assume the entitlement is lost — lodge as soon as possible and be ready to explain the delay. And if you're approaching or past the 3-month mark, get legal advice immediately, since late claims beyond that point can only be accepted in limited circumstances. For every deadline in order, see our CTP claim timeline.

Set a reminder, not just an intention

“I'll get to it soon” is exactly how 28 days slips past in the middle of an already stressful recovery. If you've decided to claim, set an actual reminder — on your phone, with a family member, however works for you — for well before day 28, not on it. It's a small step that removes one entirely avoidable source of stress from an already difficult time.