401(k) Remittance Deadlines for Small Businesses: What the DOL Actually Requires
401(k) contributions must be deposited as soon as reasonably possible, typically within a few business days after payroll, not the 15th of the following month.
As a small-business owner, you may believe that you have until the 15th business day of the following month. In most cases, that is not true, and relying on that misconception can trigger penalties, lost earnings for employees, and even Department of Labor investigations.
This is especially important if you have 5–50 employees, run payroll weekly or biweekly, or assume your payroll provider is handling everything, you’ll want to be clear on what the Department of Labor expects. By offering a 401k plan, you’re able to support your employees’ financial futures. However, a 401k plan also comes with a set of rules and responsibilities, especially when it comes to 401k remittance.
401(k) Remittance Means Transferring Employee Contributions into the Plan Promptly
The process of transferring employee contributions that are withheld from an employee’s paycheck and any employer match into the 401k-plan account is known as 401k remittance. This process sounds simple but can be easily mishandled.
As an employer, once the funds are withheld from an employee’s paycheck you need to ensure that you deposit them on time, track it correctly, and keep documentation. Due to the fact that these contributions are employees’ retirement savings, delaying or misplacing them can have serious consequences.
The DOL Requires 401(k) Contributions to Be Deposited as Soon as Possible (Typically Within Days)
The Department of Labor (DOL) requires that employers remit 401k contributions as soon as reasonably possible to ensure that they can reasonably separate them from the company’s general funds. Ideally, this means within 1 to 3 business days after running payroll, but 5-7 business days are typically allotted.
A common misconception you may have is that you have until the 15th business day of the next month to remit 401k contributions. However, that is the outer limit, and usually only applies in rare cases. Missing these deadlines can result in penalties, interest charges, plan disqualification, lost investment earnings for your employees, and even Department of Labor investigations.
If contributions are late, you may have to restore lost investment earnings to employees’ accounts, pay excise taxes, and file corrections. Imagine you run payroll on Friday and deposit contributions the following Thursday because cash flow is tight. That one‑week delay could be considered late, even if you believed you were within the 15‑day rule.
Common 401(k) Remittance Mistakes That Lead to Compliance Issues
From my experience helping small business clients, a few common pitfalls come up repeatedly:
- Delaying contributions due to cash flow concerns. – Although it is important to prioritize immediate expenses, postponing 401k remittance can lead to compliance issues and penalties.
- Not reconciling payroll records with plan contributions. – Often, we see that the amount withheld from an employee’s paycheck does not match what is deposited into the 401k account. These mismatches are often due to manual errors, which can lead to compliance issues and employee frustration.
- Failing to include eligible employees in the plan. – A costly mistake can be to miss the time period allotted to enroll an employee who is eligible for the company 401k plan. This may require you to make up missed contributions on behalf of the employee, which is easy to avoid with a good tracking system.
- Assuming the 401k provider or payroll company is handling everything. – While 401k and payroll providers handle processing, they typically do not monitor for compliance issues. Ultimately, it is the employer’s responsibility to ensure that contributions are made in an accurate and timely manner.
How to Stay Compliant With 401(k) Remittance Requirements
Compliance may feel overwhelming at first, but the following practices will protect your plan and your business:
- Automate contributions through your payroll system so employee deferrals are remitted automatically. For example, in tools like Gusto or ADP, you can enable automatic 401k deductions within payroll settings.
- Reconcile the 401k account every pay period by comparing the payroll with plan records to ensure that the totals match. This can be done by reviewing payroll reports alongside your 401k provider dashboard each pay period.
- Track employee eligibility and enrollment timelines. This can be accomplished through the use of workflow tools such as Karbon to keep track of deadlines and maintain clear oversight of compliance-related tasks.
- Work with a knowledgeable bookkeeper or payroll advisor who understands 401k rules. An expert partner can help you set up systems, fix past errors, and stay ready for audits.
You May Need Help If You’ve Missed Deadlines or Found Contribution Errors
If you have missed a contribution deadline, notice mismatches between payroll and 401k records, have not reviewed your plan document, or are relying on software or providers without active compliance oversight, then it may be time to ask for help.
As part of our accounting and bookkeeping support, we specialize in helping small businesses stay compliant with 401k remittance. As a small business owner, you manage a variety of responsibilities every day. Our team can guide you through setting up systems, tracking deadlines, fixing past mistakes, and preparing for audits in order to keep you focused on your business.
Ready to feel confident about your 401(k) plan? Contact us to see how Universal Bookkeeper can help you stay compliant.