How Long Does Security Footage Actually Need to Be Stored?
It's one of the most common questions we get after someone sets up a new system: how much footage should I actually keep, and how long before it's safe to let old recordings get overwritten? The honest answer is "it depends what you're protecting against" — but there are some sensible defaults.
There's no single legal minimum in Australia
Unlike some overseas jurisdictions, Australia doesn't impose a blanket legal minimum or maximum retention period for home or small business security footage. Some industries (like licensed venues in certain states) have specific retention rules attached to their liquor licence conditions, but for a typical home or small business, retention length is a practical decision, not a legal requirement.
The practical benchmark: 30 to 60 days
Most home and small business users are well served by 30 to 60 days of continuous local storage. That window covers the realistic gap between an incident happening and someone noticing — a parcel theft discovered a week later, a vehicle damage claim that takes a few weeks to surface, or a dispute that only comes to light once someone reviews their bank statement or insurance paperwork.
HiLink NVR kits store footage locally on the included hard drive, and depending on drive size, camera count, and resolution, typically hold somewhere in the 30–50 day range of continuous recording before older footage is overwritten. Higher-resolution cameras and more channels use up storage faster, so a bigger property with more cameras may want a larger drive to hit the same retention window.
When you'd want longer retention
A few scenarios justify stretching beyond the 30–60 day default: ongoing disputes (neighbour issues, tenancy disagreements, insurance claims) where you want a longer paper trail, small businesses with a slower incident-reporting cycle (a customer complaint or stock discrepancy that surfaces weeks later), and properties that have had repeat incidents, where a longer history helps establish a pattern.
In these cases, the simplest fix is a larger hard drive in your existing NVR, or exporting and archiving specific footage you want to keep indefinitely rather than relying on the rolling recording window.
Exporting footage you actually need
Regardless of your retention window, if an incident happens, export and save that specific footage immediately rather than waiting — once the drive cycles back around to that timestamp, it's gone. HiLink's app and NVR interface both support exporting clips to a phone, USB drive, or computer.
Local storage vs. cloud
Because HiLink systems record locally rather than to a subscription cloud service, there's no monthly fee dictating your storage window — it's purely a function of your hard drive size, not a plan tier. If you're setting up a new system and think you'll want longer retention, it's worth choosing a larger drive upfront rather than upgrading later.
Questions about your specific setup?
Check our FAQ for more on storage and remote access, or use our Build My System tool to find a kit sized right for your property and footage needs.
