If you have over 1,000 ledger entries which have been created in the last 12 months, you will be prompted to purchase the subscription. Accounts with 1,000+ nominal ledger entries require a subscription to continue using QuickFile.
You can however defer this for 14 days if you haven’t done so already (there’s an option on the payment screen for this), which will give you 14 days free access.
I recommend taking a look at the following guides and checking out the ledger count, so you can see how this is broken down for your account:
I hope that helps.