401(k) Plan
401(k) Plan
An employer-sponsored retirement plan allowing employees to make pre-tax or Roth (after-tax) salary deferrals, often with employer matching contributions. 2025 contribution limits are $23,500 (under age 50), with catch-up contributions of $7,500 (ages 50-59 and 64+) or $11,250 (ages 60-63, "super catch-up"). Employer matching contributions may be subject to vesting schedules. Plans may permit loans (generally up to $50,000 or 50% of vested balance) and hardship withdrawals. Required minimum distributions (RMDs) begin at age 73 for Traditional 401(k)s.
A 45-year-old employee earning $90,000 annually contributes $10,000 to her 401(k) (11% of salary). Her employer matches 50% of contributions up to 6% of salary, adding $2,700 annually ($90,000 × 6% × 50% = $2,700). The employee contribution reduces her current taxable income to $80,000, and all contributions grow tax-deferred until retirement. She can contribute up to $23,500 annually to maximize tax-deferred growth.
Students often confuse 401(k) contribution limits ($23,500/$31,000 for 2025) with IRA limits ($7,000/$8,000 for 2025). Another common error: assuming employer matching contributions count toward the employee contribution limit. They do not. The employee can still contribute $23,500 regardless of employer match. Vesting is also misunderstood: employee contributions are always 100% vested immediately, but employer match may have a vesting schedule (cliff or graded). Traditional 401(k) vs. Roth 401(k) confusion: Traditional uses pre-tax contributions (tax-deferred), while Roth uses after-tax contributions (tax-free qualified distributions). Finally, loan rules: the maximum loan is the LESSER of $50,000 or 50% of vested balance, not either/or.
How This Is Tested
- Calculating employer matching contributions based on employee salary and company match formula
- Determining maximum employee contribution limits including catch-up contributions for those age 50+
- Comparing Traditional 401(k) (pre-tax contributions, tax-deferred growth, taxable distributions) versus Roth 401(k) (after-tax contributions, tax-free qualified distributions)
- Understanding vesting schedules for employer matching contributions (cliff vs. graded vesting)
- Identifying when RMDs must begin and calculating required distribution amounts
- Evaluating 401(k) loan limits and repayment requirements
- Distinguishing between employee deferrals (always 100% vested) and employer contributions (subject to vesting)
Regulatory Limits
| Description | Limit | Notes |
|---|---|---|
| 2025 employee contribution limit (under age 50) | $23,500 annually | Pre-tax and/or Roth contributions combined |
| 2025 catch-up contribution (ages 50-59 and 64+) | $7,500 annually | Additional contribution above $23,500 base limit |
| 2025 super catch-up contribution (ages 60-63) | $11,250 annually | Enhanced catch-up for ages 60-63 under SECURE 2.0 |
| 2025 total contribution limit (employee + employer) | $70,000 annually | Combined limit for employee deferrals, employer match, and profit sharing (excluding catch-up contributions) |
| RMD starting age | Age 73 | SECURE 2.0 Act; increases to age 75 in 2033 |
| Maximum loan amount | Lesser of $50,000 or 50% of vested balance | Generally must be repaid within 5 years unless for primary residence purchase |
| Early withdrawal penalty | 10% penalty | Applies to distributions before age 59½ without qualifying exception |
| Vesting requirement (employee contributions) | 100% immediate vesting | Employee salary deferrals are always fully vested |
Example Exam Questions
Test your understanding with these practice questions. Select an answer to see the explanation.
Marcus, age 38, earns $120,000 annually and participates in his employer's 401(k) plan. The employer matches 100% of employee contributions up to 3% of salary, then 50% of contributions from 3% to 5% of salary. Marcus currently contributes 4% of his salary ($4,800 annually). He is considering increasing his contribution to maximize the employer match. How much should Marcus contribute to receive the full employer match, and what would the total employer contribution be?
B is correct. To receive the full employer match, Marcus should contribute 5% of his salary ($120,000 × 5% = $6,000). The employer match calculation: 100% match on first 3% = $120,000 × 3% × 100% = $3,600. Then 50% match on next 2% (from 3% to 5%) = $120,000 × 2% × 50% = $1,200. Total employer match = $3,600 + $1,200 = $4,800.
A is incorrect because contributing only 3% would leave $1,200 in employer match on the table. Marcus is currently contributing 4%, so he should increase to 5%, not decrease to 3%. C is incorrect because it assumes a 100% match on the full 5%, but the formula only provides 100% match on the first 3%, then 50% on the next 2%. D is incorrect because contributing more than 5% does not increase the employer match. The match formula caps at 5%, so contributions above 5% receive no additional employer contribution. While Marcus could contribute up to $23,500 (2025 limit), the employer match maxes out at $4,800 when he contributes 5%.
The Series 65 exam frequently tests understanding of tiered employer matching formulas. Advisers must be able to calculate the optimal employee contribution to maximize "free money" from employer matches. This concept appears in retirement planning scenarios and suitability questions. Candidates must understand that employer matching contributions do NOT count toward the employee contribution limit ($23,500/$31,000), allowing employees to receive both their full contribution and the employer match.
What is the maximum employee contribution limit for a 401(k) plan in 2025 for a participant who is 52 years old?
C is correct. For 2025, participants age 50 or older can contribute up to $31,000 to their 401(k) plans. This consists of the base contribution limit of $23,500 plus a $7,500 catch-up contribution for those age 50 and older.
A ($7,500) is incorrect because this is only the catch-up contribution amount for those age 50+, not the total contribution limit. B ($23,500) is the base employee contribution limit for those under age 50, but it does not include the catch-up contribution available to those 50 and older. D ($69,000) is the total combined limit for all contributions (employee deferrals + employer match + profit sharing) for participants under 50, not the employee-only contribution limit.
The Series 65 exam tests knowledge of annual contribution limits, which change with inflation adjustments. Understanding the difference between employee contribution limits ($23,500/$31,000) and total plan contribution limits ($69,000/$76,500) is critical. Questions often test whether candidates know that catch-up contributions begin at age 50, and that these limits apply per individual across all 401(k) plans, not per employer.
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Access Free BetaJennifer, age 55, earns $180,000 annually and contributes the maximum employee contribution to her 401(k) plan. Her employer contributes a flat 3% of salary regardless of employee contributions (non-elective contribution). What is the total contribution to Jennifer's 401(k) for 2025 (employee plus employer)?
C is correct. Jennifer is 55 years old, so she can contribute the maximum employee contribution of $31,000 for 2025 ($23,500 base + $7,500 catch-up). Her employer contributes 3% of salary: $180,000 × 3% = $5,400. Total contribution = $31,000 (employee) + $5,400 (employer) = $35,900.
A ($28,900) incorrectly calculates the employee contribution as only $23,500 (forgetting the $7,500 catch-up) and adds the employer contribution: $23,500 + $5,400 = $28,400. This is close but wrong due to missing the catch-up. B ($31,000) only includes Jennifer's employee contribution and forgets to add the employer contribution. D ($76,500) is the maximum total contribution limit for 2025 for those age 50+, but the question asks for the actual total contribution based on Jennifer's salary and the employer's formula, not the regulatory maximum. While Jennifer could receive up to $76,500 in total contributions if her employer contributed more, the actual amount based on the given formula is $35,900.
Calculation questions involving employee contributions, employer matching, and catch-up contributions are common on the Series 65 exam. You must distinguish between what a client contributes, what the employer contributes, and the regulatory maximums. Understanding that employee and employer contributions are separate and cumulative helps evaluate total retirement savings and tax-deferred growth potential. This knowledge is essential for retirement planning recommendations.
All of the following statements about 401(k) plans are accurate EXCEPT
B is correct (the EXCEPT answer). Employer matching contributions do NOT count toward the employee contribution limit. The $23,500/$31,000 limit applies only to employee salary deferrals. Employer contributions are tracked separately and count toward the much higher total contribution limit ($69,000/$76,500 for 2025). This is a critical distinction that allows employees to receive both their full contribution and unlimited employer matching (up to the total limit).
A is accurate: Traditional 401(k) salary deferrals are made with pre-tax dollars, reducing taxable income in the contribution year. For example, if an employee earning $100,000 contributes $15,000, their W-2 taxable income is reduced to $85,000. C is accurate: participants who are age 50 or older by December 31 of the tax year can contribute an additional $7,500 catch-up contribution in 2025 (on top of the $23,500 base limit). D is accurate: employee contributions are governed by ERISA rules requiring immediate 100% vesting. However, employer matching contributions may be subject to vesting schedules (cliff or graded vesting over up to 6 years).
The Series 65 exam tests the critical distinction between employee contribution limits and total contribution limits. Many candidates incorrectly assume employer match reduces the amount employees can contribute. Understanding that these are separate limits is essential for maximizing retirement savings strategies and properly advising clients. Questions often present scenarios where clients want to know how much they can contribute when their employer provides generous matching, making this a high-priority concept.
An employee has participated in his employer's 401(k) plan for 3 years. He has contributed $60,000 total (employee deferrals), and his employer has contributed $18,000 in matching contributions. The employer uses a 6-year graded vesting schedule (20% per year). The employee's vested balance is $48,000. He is considering taking a 401(k) loan. Which of the following statements are accurate?
1. The employee's own $60,000 in contributions are 100% vested
2. The maximum loan amount he can take is $50,000
3. The maximum loan amount he can take is $24,000 (50% of vested balance)
4. If he leaves the company, any unvested employer contributions will be forfeited
B is correct. Statements 1, 3, and 4 are accurate.
Statement 1 is TRUE: Employee salary deferrals are always 100% vested immediately under ERISA requirements. The employee contributed $60,000 of his own money, which is fully his regardless of when he leaves the company.
Statement 2 is FALSE: While $50,000 is the general maximum loan amount, the actual maximum is the LESSER of $50,000 OR 50% of the vested balance. Since his vested balance is only $48,000, the maximum loan is $24,000 (50% of $48,000), not $50,000. This is a critical distinction.
Statement 3 is TRUE: The maximum loan amount is the lesser of $50,000 or 50% of vested balance. 50% of $48,000 = $24,000. Even though the $50,000 limit exists, it does not apply here because 50% of vested balance ($24,000) is less than $50,000.
Statement 4 is TRUE: The employee has been with the company for 3 years. Under a 6-year graded vesting schedule (20% per year), he is 60% vested in employer contributions after 3 years. The employer contributed $18,000, so he is vested in $10,800 (60% of $18,000). The remaining $7,200 (40%) is unvested and would be forfeited if he terminates employment. Combined with his $60,000 in employee contributions, his total account value is $78,000, but his vested balance is only $70,800 ($60,000 employee + $10,800 vested employer match). However, the question states his vested balance is $48,000, which suggests account losses or the need to use the given number for the loan calculation.
The Series 65 exam tests comprehensive understanding of 401(k) plan mechanics, including vesting schedules, loan limits, and the interaction between these rules. You must understand that employee contributions are always fully vested, while employer contributions may be subject to vesting schedules. The loan limit calculation (LESSER of $50,000 or 50% of vested balance) is frequently tested, and many candidates incorrectly assume the limit is always $50,000. Understanding forfeitures of unvested amounts is critical for advising clients considering job changes.
💡 Memory Aid
Think "401(k) = Four-Oh-WIN" because you win in four ways: (1) Pre-tax contributions reduce current taxes, (2) Employer match is free money, (3) Tax-deferred growth compounds faster, (4) Higher limits than IRAs ($23K vs. $7.5K). Remember "Fifty Plus Seven-Five": Age 50+ gets $7,500 catch-up. For loans: "Half or Fifty" = lesser of 50% of vested balance OR $50,000.
Related Concepts
This term is part of this cluster:
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Where This Appears on the Exam
This term is tested in the following Series 65 exam topics: