
Not paying employees' 401(k) contributions can have serious consequences for employers. This penalty can range from 3% to 49% of the unpaid contributions.
Employers who fail to make timely 401(k) contributions may face a penalty of up to 3% of the total contributions due, plus interest. This penalty is in addition to the interest owed on the unpaid contributions.
The IRS will also assess a penalty of up to 50% of the total contributions due if an employer fails to pay 401(k) contributions for three or more years. This can add up quickly and put a significant strain on the employer's finances.
To avoid these penalties, employers should prioritize making timely 401(k) contributions and communicate effectively with their employees about their benefits.
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General Information
As an employer, it's essential to understand the general rules and procedures for depositing 401(k) contributions to avoid penalties. Generally, salary deferrals and loan payments must be deposited as soon as possible to avoid extra employer costs and penalties.
The IRS and DOL don't clearly define what "as soon as possible" means, but typically it begins once the money is withheld from a participant's paycheck and becomes reasonably segregated from the employer's general accounts during a payroll cycle.
Having a documented policy that is actively managed and followed can help ensure timely deposits. This policy should detail which employees are responsible for remittances, which dates remittances must be made, and include steps to verify the funds have been received at the trust.
Employers should also consider using ACH/wire to submit contributions, as this can improve timeliness compared to submitting by manual check. Additionally, partnering with an advisory firm can help identify best practices and technology advancements that can streamline the process.
Employer contributions must be contributed by deadlines that vary based on the type of contribution. The deadline can also be specified in the plan document.
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Potential Penalties
The potential penalties for an employer not paying 401(k) contributions on time can be steep. The Department of Labor requires employers to make participants "whole" by funding the lost earnings from the date the deposit should have occurred until it's completed.
The lost earnings will be subject to a 15% excise tax, which must be paid using Form 5330. This tax will continue to apply to each tax year until the error is corrected.
If the employer doesn't pay the tax during the year the deposit was due, the 15% tax will carry over to the next year and continue to accrue until the mistake is fixed.
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Corrective Action
Corrective Action can be a complex and time-consuming process, but it's essential to correct late deposits to avoid penalties and protect your business. You must determine which deposits were late and calculate the lost earnings necessary to correct.
To correct late deposits, you'll need to deposit any missed elective deferrals, together with lost earnings, into the trust. This process can be done through self-correction or the Voluntary Fiduciary Compliance Program (VFCP).
If you self-correct, you'll need to fund the lost earnings to impacted participants, report the late remittances on Form 5500, and file Form 5330. You'll also need to pay a 15% excise tax to the IRS, which is based on the lost earnings amount.
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Here are the steps to correct late deposits through self-correction:
- Determine which deposits were late and calculate the lost earnings necessary to correct.
- Deposit any missed elective deferrals, together with lost earnings, into the trust.
- Review procedures and correct deficiencies that led to the late deposits.
Alternatively, you can use the VFCP process, which may provide more protection in case of a DOL audit. However, this process typically involves more time and expense.
Procedures Enhance Timeliness
Having a documented policy for 401(k) contributions can make a huge difference in avoiding late remittances. This policy should include steps to ensure contributions are properly submitted to the trust, such as detailing which employees are responsible for remittances and which dates remittances must be made.
Procedures should also include steps to verify that the funds have been received at the trust, and provide for backup personnel who can follow them when the designated employee is sick or on vacation during the payroll cycle. This ensures that contributions don't get delayed due to employee absences.
Using ACH/wire to submit contributions is a more efficient method than submitting a manual check, and many recordkeepers also have automatic withdrawal features that reduce the manual components of this process and improve consistency in timing.
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Here are the key steps to include in your documented policy:
- Detail which employees are responsible for remittances
- Specify which dates remittances must be made
- Include steps to verify that funds have been received at the trust
- Provide for backup personnel in case the designated employee is absent
By following these procedures, you can improve the timeliness of your 401(k) contributions and avoid late remittances.
Corrective Action
Corrective action is necessary when the terms of a 401(k) plan aren't followed, and late deposits are a common issue that requires correction.
You'll need to determine which deposits were late and calculate the lost earnings necessary to correct the issue.
Late deposits can be corrected through the Employer's Plan Compliance Resolution System (EPCRS), which requires depositing any missed elective deferrals, together with lost earnings, into the trust.
To correct late deposits, you'll also need to review procedures and correct deficiencies that led to the late deposits.
Having a documented policy that is actively managed and followed can help avoid late remittances, but if deposits are still late, you'll need to take corrective action.
The process of correcting late deposits involves funding lost earnings to affected participants for the period that contributions were late.
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You have the choice to formally correct the issue using the DOL's Voluntary Fiduciary Compliance Program (VFCP) or self-correct, but self-correcting involves paying a 15% excise tax to the IRS.
Here are the steps involved in self-correcting late deposits:
- Funding lost earnings to affected participants
- Filing a Form 5330 to pay the tax
- Reporting late participant contribution deposits on the 401(k) plan's Form 5500
Note that if a late deposit issue is not corrected properly, the DOL can sue to protect the interests of plan participants.
Self-Correction and Audit
Self-correction is a voluntary program that allows employers to correct late deposits on 401(k) plans without incurring IRS user fees. It requires the employer to have practices and procedures in place to prevent similar errors from happening in the future.
No IRS-imposed user fees are charged for self-correction, but the employer must fund the lost earnings to impacted participants and report the late remittances on Form 5500.
Self-correction can be done with the assistance of a third-party administrator, but there is some risk that the correction could be deemed insufficient in a Department of Labor (DOL) audit.
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The employer must also file Form 5330 to correct the error.
In some cases, the DOL may require the employer to determine earnings using an actual rate of return.
Here are the steps to correct late deposits through self-correction:
- Determine which deposits were late and calculate the lost earnings necessary to correct.
- Deposit any missed elective deferrals, together with lost earnings, into the trust.
- Review procedures and correct deficiencies that led to the late deposits.
If the mistakes are insignificant in the aggregate, the employer can correct the error beyond the three-year correction period for significant errors.
Avoiding and Fixing Mistakes
Avoiding mistakes is key to avoiding penalties for late 401(k) deposits. To do this, establish a procedure requiring elective deferrals to be deposited coincident with or after each payroll per the plan document. If deferrals deposits are a week or two late because of vacations or other disruptions, keep a record of why those deposits were late.
Coordinate with your payroll provider and others who provide service to your plan, if any, to determine the earliest date you can reasonably make deferral deposits. The date and related deposit procedures should match your plan document provisions, if any, about this issue.
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Implement practices and procedures that you explain to new personnel, as turnover occurs, to ensure that they know when deposits must be made. If you do make late deposits, you can either formally correct the issue using the DOL’s Voluntary Fiduciary Compliance Program (VFCP) or self-correct, but self-correcting comes with some risks.
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Finding Mistakes
Finding mistakes in your plan can be a challenge, but it's a crucial step in avoiding and fixing errors. Review plan terms relating to the deposit of elective deferrals to see if you've followed them.
Some plan documents contain specific times for deposits, such as weekly or biweekly, so make sure you're operating the plan according to its document. If you're not, you may have an operational mistake requiring correction under EPCRS.
A mistake can be as simple as depositing on a biweekly basis when the plan document states weekly deposits. This can be corrected under EPCRS, but it's essential to identify the mistake first.
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Avoiding Mistakes

To avoid mistakes with 401(k) plan deposits, it's essential to establish a procedure requiring deposits to be made coincident with or after each payroll, as stated in the plan document.
This means coordinating with your payroll provider and others who provide service to your plan to determine the earliest date you can reasonably make deferral deposits.
You should also implement practices and procedures that you explain to new personnel, as turnover occurs, to ensure that they know when deposits must be made.
A key step is to keep a record of any late deposits, including the reason for the delay, such as vacations or other disruptions.
Here are some steps to help you avoid mistakes:
By following these steps, you can help ensure that your 401(k) plan deposits are made on time and in accordance with the plan document.
Frequently Asked Questions
Can I sue my employer for not contributing to my 401k?
Under ERISA, employees have the right to sue their employer if they fail to properly manage or contribute to their 401(k) plan. If you suspect your employer is not meeting their ERISA obligations, you may be eligible for compensation or other remedies
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