Old Second Bancorp, Inc. 401(k): EPIC Retirement Plan Services, match 4% max
Old Second Bancorp, Inc. Employees' 401(k) Savings Plan and Trust · OSBC · CIK 357173
EPIC Retirement Plan Services is the recordkeeper named on the Form 5500 filed for Old Second Bancorp, Inc. Employees' 401(k) Savings Plan & Trust, the company that keeps the account records. What the filing says about them.
Maximum employer match, as a share of pay
4%
Old Second Bancorp, Inc. matches 100% (dollar-for-dollar) of the first 3% of pay, then 50% of the next 2% of pay, for a maximum employer match of 4% of pay.
From the Form 11-K filed June 29, 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 Old Second Bancorp puts in, and what the plan costs
What Old Second Bancorp put into the plan, per active participant
$2,650
Old Second Bancorp, Inc. put $2,650 into this plan for each of its 883 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.
Old Second Bancorp put in less per active participant than 70% of plans with 500–999 participants at banks and lenders. The middle plan in that group of 309 reported $3,434. Banks and lenders comes from business code 522110, which Old Second Bancorp entered on its own Form 5500. Sponsors pick that code themselves, so a code that does not describe what the employer does ranks the plan against the wrong companies.
What this figure cannot separate: how much Old Second Bancorp 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 363143493, plan 003 · DOL EFAST2 ↗
The $2,650 above is the Form 5500 figure for plan year 2024, and it counts every employer dollar on one line. Old Second Bancorp, Inc. also files a Form 11-K, which states the match formula for plan year 2025: the card below reads $1,980 a year at a $49,500 salary, and the same filing states employer contributions made outside the match. That second figure is what the formula pays one worker on that salary, and not an amount either filing reports. The two figures cover different plan years and measure different things, so neither one is the other one corrected.
What Old Second Bancorp puts in
$1,980
a year, at a $49,500 salary.
The match paragraph, word for word
“The Plan allows for a discretionary employer match contribution. The Plan has a “Safe Harbor” Plan provision, which allows a Company match equal to 100% of the first 3% of the participant’s eligible compensation contributed, and an additional Company match of 50% on the next 2% of the participant’s eligible compensation contributed, allowing a total Company match of 4% if the participant elects a 5% or more contribution rate.”
What you contribute to collect all of it
Contribute at least 5% of your pay to collect the full match.
That is $2,475 a year at a $49,500 salary, and it scales with your own.
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
“Participants are always fully vested in their employee contributions, rollover contributions, Company matching contributions, and earnings thereon. Participants vest in the Company’s profit sharing contributions under a 6 year graded schedule as follows:”
A worker hired today collects no match for 1 month. This is a filed term, and it does not move the score above.
Eligibility, word for word
“Participants are eligible for matching contributions after one month of service, with the entry date being the first day of the month coincident with or next following the employee's one-month anniversary.”
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
14th percentile
$27.51 per participant in plan-paid administrative cost, cheaper than 86% of plans with 500–999 participants.
What is Old Second Bancorp's 401(k) match formula?
Old Second Bancorp's 401(k) employer match tops out at 4% of pay. A tiered formula pays its best rate on the first slice of pay and less on the next, which is how the rate steps down.
| Match formula | 100% (dollar-for-dollar) of the first 3% of pay |
|---|---|
| then | 50% of the next 2% of pay |
| Maximum employer match | 4% of compensation |
| Conditions | Total Company match of 4% applies if the participant elects a 5% or more contribution rate |
| Other employer contribution | Profit-sharing contribution: discretionary amount determined annually by the Company's Board of Directors; no profit-sharing contribution was made for 2025 |
At a $60,000 salary, contributing 5% ($3,000) earns the full employer match of $2,400 for the year.
What the filing says, word for word
“The Plan allows for a discretionary employer match contribution. The Plan has a “Safe Harbor” Plan provision, which allows a Company match equal to 100% of the first 3% of the participant’s eligible compensation contributed, and an additional Company match of 50% on the next 2% of the participant’s eligible compensation contributed, allowing a total Company match of 4% if the participant elects a 5% or more contribution rate.”
Source: Form 11-K filed June 29, 2026, SEC EDGAR, corroborated by the filing's inline-XBRL facts · SEC ↗
What is Old Second Bancorp's 401(k) vesting schedule?
Old Second Bancorp 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 |
| Accelerated vesting | Full vesting upon plan termination |
| Other employer contributions | Profit-sharing contributions vest under a 6-year graded schedule: 0% (0-1 years), 20% (2 years), 40% (3 years), 60% (4 years), 80% (5 years), 100% (6 years) |
Vesting, word for word
“Participants are always fully vested in their employee contributions, rollover contributions, Company matching contributions, and earnings thereon. Participants vest in the Company’s profit sharing contributions under a 6 year graded schedule as follows:”
Source: Form 11-K filed June 29, 2026, SEC EDGAR · SEC ↗
Who can join Old Second Bancorp's 401(k), and is enrollment automatic?
Old Second Bancorp's filing does not mention automatic enrollment, which is not the same as the plan having none.
| Match eligibility | After one month of service, with the entry date being the first day of the month coincident with or next following the employee's one-month anniversary |
|---|---|
| Excluded groups | Union employees, leased employees, intermittent commissioned part-time employees and temporary employees as defined by the Employer's Personnel Policy |
| Automatic enrollment | Not mentioned in the filing (not proof of absence) |
Eligibility, word for word
“Participants are eligible for matching contributions after one month of service, with the entry date being the first day of the month coincident with or next following the employee's one-month anniversary.”
Source: Form 11-K filed June 29, 2026, SEC EDGAR · SEC ↗
Who holds your account
Schedule C of the Form 5500 filed for plan year 2024 reports EPIC Retirement Plan Services. 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.
263 plans on file name EPIC Retirement Plan Services as their recordkeeper. Of those, the 263 with a computable fee have a median plan-paid cost of $181.71 per participant.
| Recordkeeper | EPIC Retirement Plan Services |
|---|---|
| Recordkeeper EIN | 161450952 |
What does the Old Second Bancorp plan report on Form 5500?
The Old Second Bancorp plan reported $101.6M in assets and 999 participants for plan year 2024.
| Total plan assets | $101,567,525 |
|---|---|
| Participants | 999 |
| Plan-paid admin cost per participant | $27.51 |
How that cost compares
This plan pays $27.51 per participant. The median across plans at banks and lenders is $152.83, from the 2,143 of 2,264 whose Form 5500 yields a per-participant cost.
Read from the Form 5500 filing of Old Second Bancorp, Inc. Employees' 401(k) Savings Plan & Trust, which has no page of its own here.
How does Old Second Bancorp's 401(k) match compare?
Old Second Bancorp, Inc.'s maximum 401(k) match of 4% of pay compares with a median of 4% across the 269 companies in our data with a computable formula.
Employers worth reading next
Of the six employers below, three file at banks and lenders, one reports the same recordkeeper, one lands near Old Second Bancorp's maximum match and one vests on the same schedule.
Maximum match 4% of pay. Also at banks and lenders.
Maximum match 4% of pay. Also at banks and lenders.
Maximum match 4% of pay. Also at banks and lenders.
Maximum match 4% of pay. Same recordkeeper, EPIC Retirement Plan Services.
Maximum match 4% of pay, level with Old Second Bancorp.
Employer match vests immediately. Vests immediately too, like Old Second Bancorp.
Compare Old Second Bancorp, Inc. with any company, side by side
What can you do next?
- Read the Form 11-K on SEC EDGAR ↗
Form 11-K filed June 29, 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 Old Second Bancorp, Inc.'s 401(k) match?
Old Second Bancorp, Inc. matches 100% (dollar-for-dollar) of the first 3% of pay, then 50% of the next 2% of pay, for a maximum employer match of 4% of compensation (plan year ended December 31, 2025).
When does the Old Second Bancorp, Inc. 401(k) match vest?
Immediate: employer match is 100% vested when contributed.
Does Old Second Bancorp, Inc.'s 401(k) plan have automatic enrollment?
Not mentioned in the filing (not proof of absence).
Who is the recordkeeper for Old Second Bancorp, Inc.'s 401(k)?
EPIC Retirement Plan Services is named as the recordkeeper on the Form 5500 filed for Old Second Bancorp, Inc. Employees' 401(k) Savings Plan & Trust 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 Old Second Bancorp, Inc. 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 | Old Second Bancorp, Inc. |
| SEC CIK | 357173 |
| Accession number | 0000357173-26-000033 |
| Plan | Old Second Bancorp, Inc. Employees' 401(k) Savings Plan and Trust |
| Period of report | December 31, 2025 |
| Filed | June 29, 2026 |
401(k) Monitor is not affiliated with Old Second Bancorp, Inc., 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, “Old Second Bancorp, Inc. 401(k) plan facts”, from SEC Form 11-K accession 0000357173-26-000033, plan year ended December 31, 2025.
