How to permanently delete an Instagram account in the UK
Quick answer: Use Meta Accounts Centre to select the Instagram profile and request permanent deletion. Save anything you want to keep first and check that you have selected the correct account.
Save anything you need first
Download important photos or account information before starting. Temporary deactivation remains a different choice if you only want a break from the service.
Open Accounts Centre
Choose the relevant Instagram profile and open the account ownership and control settings. Meta can change menu labels, so use the current UK English Help Centre if the screens differ.
Confirm the correct account
Check the username and profile carefully before confirming deletion. Avoid any third-party service that asks you to hand over your Instagram password.
Source & methodology
Instagram’s first-party Help Centre covers permanent deletion, deactivation and exporting information before deletion.