Go beyond a basic 401(k)

Go beyond a basic 401(k)

Give your employees more than just a 401(k), join the movement.

5 min read

The Plain English Guide to Form 5330

Evan Ross
March 18, 2024
The Plain English Guide to Form 5330
Table of contents

Like all the best forms we get from the government, Form 5330's instructions are literally more than double the length of the document itself.

A surefire recipe for fun.

Okay, we can’t promise fun. But what we can provide all the essential details for tackling From 5330, so you don’t have to spend hours sifting through government legalese.

What is Form 5330?

Form 5330 is used to report and pay a variety of excise taxes related to employee benefit plans. One of the most common of these is the excise tax on late deposits made while correcting through the Department of Labor’s Voluntary Fiduciary Correction Program (VFCP).

When Is Form 5330 Needed?

When we said a “variety” of excise taxes, we meant a pretty large variety. There are quite a few mistakes that require you (or the appropriate party) to file Form 5330. To be specific (and probably more thorough than we need to be), these mistakes are:

  • A prohibited transaction (such as late deposits of employee contributions)
  • A prohibited tax shelter transaction
  • A minimum funding deficiency
  • Nondeductible contributions made to qualified plans
  • Excess contributions to a section 403(b)(7)(A) custodial account
  • A disqualified benefit provided by funded welfare plans
  • Excess fringe benefits
  • Certain employee stock ownership plan (ESOP) dispositions
  • Excess contributions to plans with cash or deferred arrangements
  • Certain prohibited allocations of qualified securities by an ESOP
  • Reversions of qualified plan assets to employers
  • A failure to pay liquidity shortfall
  • A failure to comply with a funding improvement or rehabilitation plan
  • A failure to meet requirements for plans in endangered or critical status
  • A failure to adopt a rehabilitation plan
  • A failure of an applicable plan reducing future benefit accruals to satisfy notice requirements

I’ve made one of those mistakes. Should I be panicking?

Our answer: Probably not. It’s really not the end of the world.

Dealing with Form 5330 is more of a hassle than a serious problem. Late deposits are a pretty common problem - and so, mercifully, the solution is more of a headache than full-on-torture.

Why Getting Form 5330 Right is So Important

You Don’t Want To Make A Mistake on a Correction

As long as we’re being straightforward, Form 5330 is filed as part of an excise tax on a mistake made in plan administration. It doesn’t look good to make a mistake while trying to fix a mistake. That’s the kind of thing that waves a little red-flag to the Internal Revenue Service and DoL.

There’s a Penalty for Missing the Form 5330 Deadline

Seriously, when are there not penalties? But to be fair to the government, failing to file Form 5330 is sort of equivalent to failing to pay your credit card bill.

The penalty is 5% of the unpaid excise tax for each month up to a maximum of 25% of the unpaid tax. But before you get the exciting opportunity to pay late penalties, you first have to pay the specific excise tax due:

Form 5330 Excise Taxes and Deadlines

Form 5330 penalties can be tough, and the fact that there isn’t one set tax or deadline only makes that more difficult.

The exact excise taxes and deadline for Form 5330 depend on the reason for filing.

Don’t worry, even though we listed all the possible excise tax reasons, in the table below, we’ll just cover the most common:

Reason for Excise TaxExcise TaxDeadline
Late deposit of employee deferrals15% of the "amount involved," or the associated lost earnings7 months after the close of the plan year
ADP/ACP test refunds issued more than 2 ½ months after the close of the year10% of the refund amount (not including investment gains)15 months after the close of the plan year
Company contribution in excess of the annual tax deduction limit10% of the non-deductible contribution amount7 months after the close of the tax year
A minimum funding deficiency10% of the shortfall7 months after the close of the tax year OR 8 ½ months following the close of the plan year, whichever is later.
Reversion of over-funded amounts from a defined benefit plan to the plan sponsor50% of the reversionThe last day of the month of the reversion

Form 5330 Extension Circumstances

Even though Form 5330 is filed in the process of correcting a mistake, the government still shows a little leniency.

It’s possible to get an extension of up to 6 months after the normal Form 5330 deadline. Apply for this extension with yet another form, Form 5558 - the Application for Extension of Time to File Certain Employee Plan Returns.

Heads up: Form 5558 only extends the submission deadline for Form 5330. Excise taxes still have to be paid by the due date.

How Form 5330 is Filed (and Who Usually Files It)

Typically, your Third Party Administrator will either assist with or complete this process for you. Depending on your TPA and the complexity of your plan, accountants or attorneys may also be involved.

An Example of Form 5330 for Late Contributions

Page One

On the first page and part of Form 5330, you’ll report:

  • Essential plan information - including the plan number.
  • Employer and plan sponsor or administrator information - including the EIN.
  • Basic excise taxes using Section A, B, C, D, E or F. You can only complete one section for each form 5330 filed. No doing it all at once.


Page Two

  • On the second page of Form 5330, there’s just:
  • Sections D, E or F (see above).
  • Reporting on taxes due (basically a summary of what you owe.
  • Your legally binding signature!


Schedule C

This is the specific section in which you’ll report prohibited transactions. This includes such information as:

  • Whether the prohibited transactions were leases or loans
  • A list of prohibited transactions made.
  • The total amount of excise tax to be paid on the prohibited transactions.
  • A statement of correction.

Tips for Avoiding Excise Taxes

1. Make Your ADP/ACP Corrections on Time

When your plan fails these nondiscrimination tests, you’re required to make the corrections - either as corrective distributions, or QNECs/QMACs - by 2 ½ months after the end of the plan year.

Seems simple enough, but making these corrections on time means you have to be quick in running your 401(k) nondiscrimination testing after the plan year ends. We’d recommend putting together your year-end census file immediately after the year ends.

2. Eliminate Late Contributions with Payroll Integration

It’s no secret that many 401(k) administration mistakes are caused by broken payroll processes. Late deposits are one of the most common.

Form 5330 Payroll Integration

When your 401(k) deposit process is properly automated, contributions are always deposited as soon as they can be..

All you have to do is run payroll like normal, and your contributions are deposited into the plan - no more uploading payroll files to your 401(k) provider. Payroll integration makes your 401(k) deposit process a lot easier - and means no excise taxes to pay after the fact.


Form 5330 can seem pretty overwhelming, but it’s helpful to think of it as a one-size-fixes-all form (albeit with many schedules) for some of the most common and tedious mistakes you can make in running a retirement plan.

Go beyond a basic 401(k)
Give your employees more than just a 401(k), join the movement.
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Evan Ross
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This material has been prepared for informational and educational purposes only and should not be construed as a recommendation by ForUsAll, Inc., its affiliates or employees (collectively, “ForUsAll”)  to activate a cryptocurrency window or invest in crypto.  Investing in crypto can be risky and investors must be able to afford to lose their entire investment.  You should consult with your own advisers before activating a cryptocurrency window or investing in crypto.  ForUsAll does not provide legal, tax, or accounting advice. Please refer to your Plan's fee disclosure for more details.© 2023 ForUsAll, Inc. All rights reserved.
1 Schwab 2022 401(k) Participant Study - Gen Z/Millenial Focus, October 2022.
2 As of 12/31/2022. Employees include both current employees and terminated participants with a balance.
3 "Morgan Stanley At Work: The Value of a Financial Advisor" Morgan Stanley, March 2022.
4 Sarah Britton was a client when she provided this testimonial through an independent third party review website. She received no compensation for her remarks. There are no known conflicts of interest in the provision of her comments related to the services provided.