The end of a financial year is an artificial deadline for most IT work, which is exactly what makes it useful. It is a date everyone already respects, and that is enough to get four unglamorous jobs done.
One — reconcile your licences
Count what you are paying for and compare it to who is actually working here. This is the item that most often pays for the whole exercise.
Two — close the accounts of people who have left
Not just the laptop login. The finance system, the CRM, the shared drives, the guest access in someone else's tenant, the account on the tool one team bought without telling anyone.
Three — write down what you own
An asset register does not need to be sophisticated. It needs to exist, list what the device is, who has it, and when it was bought. Warranty and refresh planning are impossible without it, and so is an insurance claim.
Four — test a restore
Not check that backups ran. Restore something, to a real location, and open it.
Backup jobs report success far more reliably than they produce usable data.
None of this is difficult. It is simply work that never becomes urgent until the week it becomes very urgent indeed. A fixed date each year is the easiest way we know to make it happen.