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IT offboarding with no open access.

When employees leave the company, accounts, shares, and devices often remain that nobody keeps track of anymore. This checklist organizes the departure into three phases: before the last working day, on the last day, and afterward. It is based on requirements ORP.2.A2 and ORP.4.A2 of the BSI IT-Grundschutz Compendium. For Microsoft 365, it lists the steps and retention periods from Microsoft's documentation, so that no access remains open and no data is lost.

Free PDF · Checklist

IT Offboarding: Checklist for Departing Employees

Format
PDF, A4
Length
8 pages
Size
117 KB
Updated
Oct 25, 2026
Sources
11
Usage
Redistribution in unchanged form permitted
Read as a Web Page

WHO IT IS FOR

Who This
Is for.

Close out accounts, devices, data, and permissions in an orderly way, based on BSI IT-Grundschutz and with the steps for Microsoft 365.

  • HR and people managers who support departures
  • IT management and administrators of Microsoft 365 and Microsoft Entra ID
  • Managers who organize handover, succession, and deputies

7 SECTIONS

What Is
Inside.

Every technical statement in the document names its source. The revision date appears on every page.
  • 01

    What Must Be Defined for a Departure

    The requirements of the BSI IT-Grundschutz Compendium for departing employees and for permissions.

  • 02

    The Process at a Glance

    Three phases from learning of the departure to deleting the account.

  • 03

    Before the Last Working Day

    Handover, deputies, and a complete list of all access before time pressure sets in.

  • 04

    On the Last Working Day: End Access

    Reset the password, block sign-in, revoke sessions, and collect devices and access media.

  • 05

    After the Departure: Mailbox, OneDrive, and License

    What Microsoft 365 does with the mailbox, OneDrive, and account, and which retention periods apply.

  • 06

    Special Case: Departure with Immediate Effect

    For short-notice separations or suspected misuse, block first, then hand over.

  • 07

    Who Does What

    Tasks of HR, supervisors, IT operations, and facility management during a departure.

EXCERPT

On the Last Working Day: End Access

  1. Reset the password and sign out

    In the Microsoft 365 admin center, reset the password and sign the person out of all sessions. According to Microsoft, resetting the password prevents sign-in immediately, whereas blocking sign-in can take up to 24 hours. An access token remains valid for up to one hour.

  2. Block sign-in and revoke sessions

    Block sign-in, which means turning off “Account enabled” in the Microsoft Entra admin center, and then select “Revoke sessions.” The person then no longer receives new tokens for any application connected to Entra ID.

  3. Don't forget on-premises Active Directory

    If accounts are synchronized from an on-premises Active Directory, disable the account there as well and reset the password. Microsoft recommends resetting it twice to reduce the risk of pass-the-hash attacks; if the account is definitely not compromised, once is enough.

  4. Wipe and block mobile devices

    For smartphones used for work, remotely wipe the company data and block access in the Exchange admin center, or via Intune if they are managed with Intune. A wipe only takes effect when the device is online; while offline, locally stored data remains accessible.

  5. Collect devices, keys, and ID badges

    Take back the notebook, smartphone, security keys, keys, ID badges, and access authorizations, and check them off on the list (ORP.2.A2). Block access authorizations in the locking or access control system.

  6. Applications outside Entra ID

    Block applications with their own sign-in or their own sessions individually. Microsoft points out that Entra ID cannot revoke session tokens issued by applications; automatic deprovisioning closes this gap where the application supports it.

  7. Change shared credentials

    Change the passwords of shared accounts and access credentials that the person knew. The list from the preparation serves as a template.

Before saying goodbye, remind the person once more of existing confidentiality obligations (ORP.2.A2).

SOURCES

Supported
by Sources.

  1. BSI IT-Grundschutz Compendium, module ORP.2 Personnel (2023 edition) (opens in a new tab)ORP.2.A2 Regulated procedure when employees leave, ORP.2.A3 Deputy arrangements, accessed October 25, 2026
  2. BSI IT-Grundschutz Compendium, module ORP.4 Identity and Access Management (2023 edition) (opens in a new tab)ORP.4.A2 Revoking permissions, ORP.4.A3 Documentation of IDs and permission profiles
  3. Microsoft Learn: Remove a former employee and secure data (overview) (opens in a new tab)Steps 1 to 7, retention of the mailbox and OneDrive after license removal and deletion
  4. Microsoft Learn: Step 1, Prevent sign-in and block access to Microsoft 365 (opens in a new tab)Reset the password, sign out of all sessions, block takes up to 24 hours
  5. Microsoft Learn: Step 3, Wipe and block a former employee's mobile device (opens in a new tab)
  6. Microsoft Learn: Step 4, Forward email or convert to a shared mailbox (opens in a new tab)50 GB limit, account remains in place, cancel meetings
  7. Microsoft Learn: Revoke user access in Microsoft Entra ID (opens in a new tab)Token lifetime, session tokens, reset Active Directory twice, disable devices, wipe only online
  8. Microsoft Learn: OneDrive retention and deletion (opens in a new tab)Manager access, 30-day retention, 93-day recycle bin, archive from day 93 without a license
  9. Microsoft Learn: Manage unlicensed OneDrive user accounts (opens in a new tab)Read-only from day 60, archive from day 93, deletion risk after 365 unpaid days
  10. Microsoft Learn: No soft-deleted mailbox after removing the license (opens in a new tab)Mailbox is disconnected immediately and deleted after 30 days
  11. Microsoft Learn: Restore or remove a recently deleted user (opens in a new tab)Recoverable for 30 days

This checklist is a TOMORIS recommendation and does not replace advice on employment or data protection law. Names, steps, and retention periods in Microsoft 365 may change; Microsoft's current documentation is authoritative.

YOUR NEXT STEP

From Paper
to Practice.

We review with you what is already implemented in your environment and put the rest into practice: as a project with EXPERTS or as ongoing operations with GRID.