401(k) Contribution Deadlines For Employers & Employees

Don't miss the critical deadline for employer 401k contributions. Learn how to maximize your retirement savings and stay compliant.

By Farther

Planning for retirement? The timing of your 401(k) contributions matters more than you might think.

Meeting 401(k) deadlines isn't just about staying organized - it directly affects your tax benefits and retirement savings potential. Whether you're making regular contributions, catch-up payments, or managing employer matches, each deadline carries significant financial implications.

Let's break down the key dates and requirements that will help you maximize your 401(k) benefits and avoid costly penalties along the way.

Key Takeaways

  • Employers must start their safe harbor 401(k) match by January 1. They need to file taxes by March 15 for S Corps and partnerships unless they operate on a fiscal year, with an extension available until September 15. Employer contributions can be made up until the tax filing deadline, including extensions.
  • Employees need to correct over-contributions by April 15. They have until December 31 each year to make their final contributions.
  • Late deposits of employer contributions should be corrected quickly using IRS programs like the Employee Plans Compliance Resolution System (EPCRS).

Key Deadlines for Employers

Key Deadlines for Employers 401k

January 1: Start of safe harbor 401(k) match

January 1 marks the beginning of a new period for employers to start offering safe harbor 401(k) matches. This allows companies to bypass some IRS tests, making it easier for them to help employees save for retirement.

Safe harbor plans are great because they require employers to make matching contributions or non-elective contributions to their workers' retirement savings.

Making these contributions helps ensure that all employees get a fair chance at saving for the future.

This setup encourages more people to participate in the 401(k) plan since they know their employer will add money too. For businesses, starting on this date means they can plan their finances better and ensure they meet all rules for offering a retirement savings plan.

March 15: Tax filing for S Corps and partnerships

After setting up the safe harbor 401(k) match at the start of the year, employers face another important deadline. March 15 is the tax filing deadline for S Corps and partnerships unless they operate on a fiscal year.

This date matters for businesses operating under these structures because they must file their taxes by then. If they miss this deadline, they could face late fees or other penalties from the Internal Revenue Service.

For those involved in managing employee benefit plans for S Corps and partnerships, knowing this helps ensure all financial affairs are in order before filing. It's also crucial for planning any employer contributions to 401(k) plans based on profits from the previous year.

Employers can use this time to review plan contributions and catch up if needed before filing their company's tax return.

September 15: Extended deadline for employer contributions

Employers can file an extension to have until September 15 to make their contributions. This includes any final payments for the previous tax year. The date gives extra time for those who need it. You must put in money by this day to get a tax break for last year.

It is key if you missed the regular deadline or needed more time to find funds. Keeping track of this date ensures your 401(k) stays on the right track.

Key Deadlines for Employees

Key Deadlines for Employees 401k

April 15: Deadline for refund of 402(g) excess deferrals

April 15 is the last day for plan participants to get a refund of any excess elective deferrals exceeding the Internal Revenue Code (IRC) Section 402(g) limit. This rule applies to employees who deferred too much money into their 401(k) accounts, which generally happens when they've contributed more than the yearly limit.

If an employee's contributions exceed the annual 402(g) limit, the excess amount must be corrected by April 15 of the following year to avoid additional taxes. For 2024, the 402(g) limit is $23,000, and for 2025, it increases to $23,500.

If this happens, the excess contributions need to be refunded by April 15 of the following year to avoid additional taxes.

On April 15, don't forget that it's your last opportunity to request a reimbursement for any extra funds you put into your retirement account.

December 31: Final contribution deadline for the current year

Employees should also bear in mind the final employer contribution deadline for the current year, which falls on December 31st.

In addition, employees who are 50 years old or above have until December 31st to make catch-up contributions towards their retirement accounts as permitted by law. Therefore, it is wise for both employers and employees alike to mark this date on their calendars and ensure timely action regarding their respective contributions.

Rules for Employer Contributions

Employer contributions must be made on time as per the plan terms.

Timely deposit requirements

Employers should ensure that employee 401(k) contributions are deposited into the plan's trust account as soon as reasonably possible after the amounts are withheld from their paychecks.

Generally, this means within seven business days of withholding or when employees would normally receive their pay. The Department of Labor (DOL) takes a firm stance on timely deposits to avoid late deposit scenarios impacting affected participants' accounts negatively, which could result in lost earnings.

The IRS has set up an elective deferral safe harbor that applies its rules for employer deposit deferrals. Though there's no specific timeline mentioned by them. They do mention that employers must meet certain deadlines to avoid penalties and excise taxes related to late deposits.

If these timely deposit requirements aren't met for contributions made under both traditional IRAs and Roth IRAs, employers may have to make corrective actions and look into IRS programs such as the voluntary correction program or self-correction methods.

Deductibility deadline for contributions

Before the deductibility deadline, employers must ensure contributions are made by their tax filing, including extensions. For corporations, this date is usually April 15th, but for S Corps and partnerships, it's usually March 15th.

The deductibility of employer contributions to a retirement plan also depends on the timely deposit of these funds. It's crucial for employers to be aware of and adhere to these rules to qualify for tax deductions.

This also applies to individual contribution limits which might differ based on compensation and age; employees over 50 years old can make "catch-up" contributions up until December 31st each year.

This timing is crucial as it determines whether or not an employee's contributions are tax-deductible in that given year.

Correcting Late Contributions

Correcting late contributions involves identifying late deposits and taking corrective actions as well as utilizing IRS programs for plan correction. It is crucial to address late contributions promptly to avoid potential penalties and ensure compliance with 401(k) regulations.

Identifying late deposits

Identifying delayed deposits is crucial for employers to comply with 401(k) contribution. Employers must keep track of the actual deposit dates to ensure they adhere to timely deposit requirements.

The correction program enables them to rectify any delayed deposits and avoid potential penalties. It's important that employer contributions are made in accordance with the plan document requirements, as failing to do so could result in plan disqualification.

Corrective actions and IRS programs

After identifying delayed deposits, it's crucial to take corrective actions promptly. They offer various programs to rectify delayed contributions and avoid penalties. One such program is the Employee Plans Compliance Resolution System (EPCRS), which allows employers to correct plan errors without severe consequences, provided they meet specific requirements.

Moreover, under the Voluntary Correction Program (VCP), employers can voluntarily correct plan mistakes and receive approval by making appropriate adjustments.

It's essential for employers to familiarize themselves with these corrective action programs because neglecting delayed contributions can result in significant penalties and adverse tax implications.

Conclusion

Managing 401(k) contribution deadlines is crucial for both employers and employees. For employers, meeting specific dates for safe harbor matching, tax filing, and contribution extensions helps avoid penalties and maintain IRS compliance.

For employees, understanding refund timing for excess deferrals and contribution deadlines ensures optimal retirement savings while staying within tax guidelines. A clear grasp of these deadlines helps everyone make the most of their 401(k) benefits.

FAQs

1. When is the deadline for employer 401(k) contributions?

For employer 401(k) contributions generally aligns with the filing deadline of the employer's tax return. For many employers, this falls on Tax Day in the calendar year following the plan year.

2. Can eligible employees make catch up contributions to their 401(k) plan?

Yes, if you're age 50 or older, you can make catch-up contributions to your 401(k) plan beyond the contribution limit for that year. The catch-up contribution limit varies each year.

3. How does being self-employed affect my ability to contribute to a 401(k)?

Self-employed individuals can establish a solo-proprietary plan that allows high contribution limits based on income from their business.

4. Are there any special rules about when I can deposit my first-year contributions into my new employee's accounts?

Unless your plan expressly provides otherwise, deposits cannot be made retroactively or later than the due date mentioned in your agreement with earliest dates set by law; consult an advisor or accounting service provider for specifics related to your case.

5. What are some considerations regarding profit-sharing contribution in a 401(k)?

Profit-sharing contributions must meet certain criteria including not exceeding annual additions limitations outlined in IRS guidelines; they are not tax-deductible but do grow tax-free until withdrawal. Profit sharing contributions are tax deductible for the employer, but not for the employee.

Important Disclosure

This document is for informational purposes only. It is educational in nature and not designed to be taken as advice or a recommendation for any specific investment product, strategy, plan feature or other purpose in any jurisdiction, nor is it a commitment from Farther Financial Advisors, LLC or any of its subsidiaries or related entities to participate in any of the transactions mentioned herein. All sources of information used are deemed reliable and accurate at the time of printing. Advisory services are provided by Farther Finance Advisors LLC, an SEC-registered investment advisor. Investing in securities involves risk, including the potential loss of principal. Before investing, consider your investment objectives, as well as Farther Finance Advisors LLC’s fees and expenses. Farther Finance Advisors, LLC does not provide tax or legal advice; please consult your tax and legal professionals for guidance on these matters.

Together, we'll take your wealth farther

Our concierge team will connect you with the ideal advisor for your unique goals.

Plan your future with confidence
Start with a complimentary no-obligation consultation
GET STARTED