Costco Wholesale Corporation 401(k) Plan: Login, Facts & Contact Information
Costco Wholesale Corporation 401(k) Login
37,493 former Costco Wholesale Corporation employees still have money in this plan.
Retirement plan providers can change. This information is from the plan's 2024 filing.
Costco Wholesale Corporation 401(k) Plan Facts
Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Jul 7, 2025. Public filing with the U.S. Department of Labor.
Money in and out in plan year 2024
- $1.83 billion went into the plan in contributions, $680.7 million of it from the employer (37%).
- $3.00 billion was paid out to participants.
- Investment and other income added $8.82 billion.
- Administrative expenses were $5.97 million, about $23 per account.
How the Costco Wholesale Corporation 401(k) changed, 2019–2024
| Plan year | Participants | Plan assets | Employer contributions | Benefits paid |
|---|---|---|---|---|
| 2019 | 184,587 | $20.5 billion | $442.1 million | $785.6 million |
| 2020 | 184,379 | $24.2 billion | $489.5 million | $2.24 billion |
| 2021 | 214,052 | $31.4 billion | $518.7 million | $1.29 billion |
| 2022 | 220,751 | $25.9 billion | $579.0 million | $1.57 billion |
| 2023 | 237,896 | $33.4 billion | $644.9 million | $1.78 billion |
| 2024 | 255,370 | $41.0 billion | $680.7 million | $3.00 billion |
Costco Wholesale Corporation 401(k) Contact Information
Questions about the Costco Wholesale Corporation 401(k)
Does Costco Wholesale Corporation contribute to the 401(k)?
Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $680.7 million, 37% of all contributions.
Does the Costco Wholesale Corporation 401(k) have automatic enrollment?
Yes. The plan reports automatic enrollment of eligible employees.
How many people are in the Costco Wholesale Corporation 401(k) plan?
255,370 participants at the start of plan year 2024, 212,976 of them active employees, and 37,493 former employees who still had money in the plan.
What is the average 401(k) balance at Costco Wholesale Corporation?
About $160,816 per account: $41.0 billion in plan assets across 255,058 accounts with a balance at the end of plan year 2024.
Who manages the Costco Wholesale Corporation 401(k) accounts?
T. Rowe Price (listed on the filing as T ROWE PRICE RPS INC) is the plan's recordkeeper, which is where participants log in to see their balance.
I no longer work at Costco Wholesale Corporation. How do I access my 401(k)?
Your account stays with T. Rowe Price after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.