CSX Corporation 401(k): Empower, match vests immediately
CSX Corporation Capital Builder Plan · CSX · CIK 277948
Empower is the recordkeeper named on the Form 5500 filed for this plan, the company that keeps the account records. Where to log in, and what the filing says.
The 401(k) employer match
Set by collective bargaining
CSX Corporation's 401(k) match terms are set by collective-bargaining agreements, so the filing states no single company-wide formula.
CSX filed two Form 11-K reports for plan year 2025, of which one has been read. The other report has not, so this page cannot say what the plan it covers pays.
From the Form 11-K filed June 22, 2026 ↗, covering the plan year ended December 31, 2025. Page data last updated July 28, 2026, when the Form 5500 bulk data was last refreshed. Why filings lag
On this page: what the employer actually paid in · the formula, word for word · when the money becomes yours · who can join · who holds your account · what the plan reports to the DOL · how it compares · what to do next
What CSX puts in, and what the plan costs
What CSX put into the plan, per active participant
$366
CSX Corporation put $366 into this plan for each of its 19,459 active participants in plan year 2024. This is the whole employer side of the plan: matching money, profit sharing, non-elective and safe-harbor contributions, and reallocated forfeitures. The Form 5500 does not separate them, so this is what the employer put in and not the match. This filing covers many unrelated employers under one plan, so the figure is an average across all of them rather than one employer's behaviour.
It is kept out of every peer group.
What this figure cannot separate: how much CSX pays, and how much it puts in
This is dollars, not a rate. A Form 5500 carries no payroll, so the figure reflects both how much the employer puts in and how much the employer pays: two plans running the same formula report different amounts when one pays better. Crossing the peer group with industry holds most of that difference still, and none of it disappears.
This is one plan year, not an average. A true-up, a plan merger or a one-off contribution moves a single year on its own.
Source: DOL Form 5500 for the plan year ended December 31, 2024, EIN 621051971, plan 004 · DOL EFAST2 ↗
What CSX puts in
Not stated in the filing
Match terms are set by collective-bargaining agreements, so the filing states no single rate for all employees.
The Form 5500 for this plan reports what CSX actually paid in: the figure and its peer comparison are above. It is the whole employer side of the plan on one line, so it answers what went in rather than what the formula promises.
Two places state the terms in full: your plan’s Summary Plan Description, which your employer must provide on request, and your recordkeeper’s site, which for this plan is Empower ↗.
What you contribute to collect all of it
Not stated in the filing
The filing does not state the contribution rate that collects the full employer contribution.
Vesting score
100 out of 100
How fast the employer’s money becomes yours. Higher than 48% of the 369 schedules we have scored.
It measures vesting speed and nothing else. It says nothing about the size of the match, what the plan charges, or the funds inside it.
Share of the employer's money that is the worker's at hire and at each of the first 6 anniversaries: 100%, 100%, 100%, 100%, 100%, 100%, 100%. The score is the average of those 7 readings.
Vesting, word for word
“Vesting: Members are 100% vested in their accounts.”
The wait before the match starts and the year-end true-up appear above when the filing states them. Neither is part of the score, and a filing that is silent on one of them is not a plan without it.
What the plan costs, against plans of its size
79th percentile
$91.22 per participant in plan-paid administrative cost, more expensive than 79% of plans with 5,000+ participants.
What is CSX's 401(k) match formula?
CSX's 401(k) match terms are set by collective-bargaining agreements, so the filing states no single company-wide formula. A bargained plan can run several formulas at once, one per agreement, and each states the same parts: a rate, a band of pay and a ceiling.
| Conditions | Matching contributions are provided only to certain eligible members; the amount and timing vary according to the applicable collective bargaining agreements. No additional Company matching contributions were made to the Plan as of December 31, 2025 or 2024. |
|---|---|
| Other employer contribution | Annual contribution of a specified number of shares of CSX common stock to certain member accounts of eligible groups, funded with newly issued shares; $2.4 million in stock contributed to Plan members in 2025 |
What the filing says, word for word
“The Plan also provides for a Company matching contribution to certain eligible members. The amount and timing of the Company contributions varies according to the applicable collective bargaining agreements. In accordance with the applicable collective bargaining agreement, CSX may also make additional contributions to the Plan. No additional Company matching contributions were made to the Plan as of December 31, 2025 or 2024.”
Source: Form 11-K filed June 22, 2026, SEC EDGAR · SEC ↗
What is CSX's 401(k) vesting schedule?
CSX vests the employer match immediately: 100% is yours as soon as it is paid in. Nothing is forfeited when you leave, which is not true of the two schedules that vest over time.
| Employer match vesting | Immediate: employer match is 100% vested when contributed |
|---|---|
| Your own contributions | Immediate: always 100% yours |
Vesting, word for word
“Vesting: Members are 100% vested in their accounts.”
Source: Form 11-K filed June 22, 2026, SEC EDGAR · SEC ↗
Who can join CSX's 401(k), and is enrollment automatic?
CSX's filing does not mention automatic enrollment, which is not the same as the plan having none.
| Plan entry | Certain union employees of CSX Corporation, affiliated companies and participating unrelated companies, as defined by the Plan Document (a multiple employer plan) |
|---|---|
| Match eligibility | Matching contributions apply only to certain eligible members per the applicable collective bargaining agreements |
| Automatic enrollment | Not mentioned in the filing (not proof of absence) |
Eligibility, word for word
“The Plan is a multiple employer defined contribution plan covering certain union employees of CSX Corporation (“CSX” or “Plan Sponsor”), affiliated companies and participating unrelated companies (collectively, “the Company”).”
Source: Form 11-K filed June 22, 2026, SEC EDGAR · SEC ↗
Who holds your account
Schedule C of the Form 5500 filed for plan year 2024 reports Empower, filed as “EMPOWER ANNUITY INSURANCE COMPANY”. That is the company paid to keep the account records: what is in an account, what went into it, and usually the site a participant signs in to. The trustee that holds the plan’s assets can be a different company, and this filing does not name it.
7,876 plans on file name Empower as their recordkeeper. Of those, the 7,813 with a computable fee have a median plan-paid cost of $165.72 per participant.
Participants log in at Empower ↗. 401(k) Monitor is not affiliated with Empower or with any other recordkeeper, and takes nothing for this link. It is here because that is where the account is.
| Recordkeeper | Empower |
|---|---|
| Recordkeeper EIN | 840467907 |
What does the CSX plan report on Form 5500?
The CSX plan reported $1.5B in assets and 23,997 participants for plan year 2024.
| Total plan assets | $1,536,701,769 |
|---|---|
| Participants | 23,997 |
| Plan-paid admin cost per participant | $91.22 |
How that cost compares
This plan pays $91.22 per participant. The median across plans in transportation and logistics is $95.71, from the 1,843 of 1,926 whose Form 5500 yields a per-participant cost.
Read from the Form 5500 filing of Csx Corporation Capital Builder Plan, which has no page of its own here.
How does CSX's 401(k) match compare?
CSX Corporation's filing does not state a maximum 401(k) match as a share of pay. Across the 269 companies in our data that do, the median is 4% of pay.
Employers worth reading next
Of the six employers below, three file in transportation and logistics, two report the same recordkeeper and one vests on the same schedule.
Employer match vests immediately. Also in transportation and logistics.
Maximum match 9.3% of pay. Also in transportation and logistics.
Maximum match 3% of pay. Also in transportation and logistics.
No employer match in the filing. Same recordkeeper, Empower.
Match vests in steps, 100% after 5 years. Same recordkeeper, Empower.
Maximum match 7% of pay. Vests immediately too, like CSX.
What can you do next?
- Read the Form 11-K on SEC EDGAR ↗
Form 11-K filed June 22, 2026, SEC EDGAR. Every match fact on this page comes from it.
- Changed jobs? Find an old 401(k) ↗
The Department of Labor's Retirement Savings Lost & Found, a free government database.
- This year's IRS contribution limits ↗
The official deferral and catch-up limits every formula operates under.
Questions this filing answers
What is CSX Corporation's 401(k) match?
CSX Corporation's match terms are set by collective bargaining agreements; the 11-K for the plan year ended December 31, 2025 does not state a single formula. CSX Corporation's Form 5500 for plan year 2024 reports $366 of employer money per active participant. This is the whole employer side of the plan: matching money, profit sharing, non-elective and safe-harbor contributions, and reallocated forfeitures. The Form 5500 does not separate them, so this is what the employer put in and not the match. This filing covers many unrelated employers under one plan, so the figure is an average across all of them rather than one employer's behaviour.
When does the CSX Corporation 401(k) match vest?
Immediate: employer match is 100% vested when contributed.
Does CSX Corporation's 401(k) plan have automatic enrollment?
Not mentioned in the filing (not proof of absence).
Who is the recordkeeper for CSX Corporation's 401(k)?
Empower is named as the recordkeeper on the Form 5500 filed for Csx Corporation Capital Builder Plan for plan year 2024. That is the company paid to keep the account records: what is in an account, what went into it, and usually the site a participant signs in to.
Source
The match formula, the vesting schedule and the enrollment rules on this page were read from one document: the Form 11-K annual report that CSX Corporation filed with the US Securities and Exchange Commission for the plan year ended December 31, 2025. Each of those fields carries the filing sentence it was read from, expandable where the field appears. Nothing on this page was supplied by the employer to this site.
The plan assets, the participant counts, the plan-paid fees and the recordkeeper come from a different document, the plan’s DOL Form 5500 annual return, and the section that reports them links it. Comparisons with other employers are computed across the filings named in the section they appear in.
Read the filing on SEC EDGAR ↗
| Document | Form 11-K annual report |
|---|---|
| Filed with | US Securities and Exchange Commission (EDGAR) |
| Filed by | CSX Corporation |
| SEC CIK | 277948 |
| Accession number | 0000277948-26-000023 |
| Plan | CSX Corporation Capital Builder Plan |
| Period of report | December 31, 2025 |
| Filed | June 22, 2026 |
401(k) Monitor is not affiliated with CSX Corporation, with the Securities and Exchange Commission or with this plan’s recordkeeper, and publishes this page without their involvement. It republishes a public filing and says where it came from.
Cite this page
401(k) Monitor, “CSX Corporation 401(k) plan facts”, from SEC Form 11-K accession 0000277948-26-000023, plan year ended December 31, 2025.
