Microsoft 401(k) plan

Microsoft Corporation, Redmond, WA. EIN 91-1144442. Annual reports 2009–2025.

Microsoft Corporation has one active retirement plan on file, the Microsoft Corporation Savings Plus 401K Plan, with 184,329 participants and $77.8 billion in assets in 2025. Fidelity has been its recordkeeper since 2014. No traditional pension plan appears in Microsoft's filings since 2009.

Active plans: 1
Participants: 184,329
Plan assets: $77.8 billion
401(k) recordkeeper: Fidelity
Plans on file: 1
Industry: Information and media

The plan

Microsoft Corporation Savings Plus 401K Plan

401(k) with ESOPActive

Active. The plan filed its annual report for the 2025 plan year.

Plan number: 001Employer EIN 91-1144442
Participants (2025): 184,329
Net assets (2025): $77.8 billion
Recordkeeper: Fidelity2014–2025
Plan administrator: 401(K) Administrative Committee
One Microsoft Way
Redmond, WA 90852
(425) 882-8080As filed for 2025
In effect since: January 1, 1987

Plans merged into this one: Linkedin Corporation 401(k) Profit Sharing Plan and Trust (2020); Zenimax 401(k) Savings Plan (2024); Github, Inc. 401(k) Plan & Trust (2020).

Earlier plan names: Microsoft Corporation Savings Plus 401(k) Plan.

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	184,329	$77.8 billion	Fidelity
2024	183,509	$65.6 billion	Fidelity
2023	177,531	$53.2 billion	Fidelity
2022	173,630	$39.6 billion	Fidelity
2021	155,107	$48.0 billion	Fidelity
2020	140,433	$38.3 billion	Fidelity
2019	116,455	$27.5 billion	Fidelity
2018	109,109	$20.4 billion	Fidelity
2017	101,879	$20.1 billion	not listed
2016	96,830	$15.6 billion	not listed
2015	91,588	$13.7 billion	not listed
2014	84,139	$12.5 billion	Fidelity
2013	81,795	$11.3 billion	not listed
2012	78,303	$8.7 billion	not listed
2011	74,407	$7.3 billion	not listed
2010	70,994	$7.1 billion	not listed
2009	69,207	$5.9 billion	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Microsoft Corporation Savings Plus 401K Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((425) 882-8080). That number was filed for 2025; ask for the benefits or retirement plan office.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

The plan

Microsoft Corporation Savings Plus 401K Plan

If you had money in one of these plans

What these numbers are

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