Can a Partnership Have a Solo 401k and What Are the Options

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A partnership can have a solo 401(k) plan, but it requires careful consideration of the rules and regulations surrounding these plans.

The IRS allows partnerships with two or more owners to establish a solo 401(k) plan, but the owners must meet certain requirements, such as being self-employed or having a business with no common law employees.

This plan is often referred to as a solo 401(k) or individual 401(k), and it can provide significant tax benefits to the business owners.

The key is to have a business with no common law employees, which means the owners must not have any employees who are not their spouses.

Can a Partnership Have a Solo 401(k)?

A partnership can have a Solo 401(k) plan, contrary to what many assume. Typically, a Solo 401(k) plan is associated with single-owner businesses, but it can also be opened by an LLC with multiple partners.

To be eligible, a multiple-member LLC, also known as a partnership, must meet just two eligibility requirements: the presence of self-employment activity and no full-time employees other than the owner or spouse. In other words, partners are allowed, not treated as employees under ERISA.

Here's an interesting read: Solo 401k for Single Member Llc

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A partnership can open a Solo 401(k) plan even if it operates as a partnership, with partners being excluded from the plan. The plan provider will create a customized plan that simply excludes partners from the plan, without naming them.

If an LLC has multiple partners and the only employees are the partners themselves, it should qualify as a "one-participant plan" or a Solo 401(k) plan. However, the business owners need to choose one or more members to be the named plan trustee(s).

Setting Up a Solo 401(k) for a Partnership

A partnership can indeed have a Solo 401(k) plan. To set one up, you'll need to meet the eligibility requirements, which are relatively straightforward. The plan provider will create a customized plan that excludes partners from participating, which is perfectly fine as long as it's done correctly.

The exclusion must be based on the partner's role in the business, not their name. For example, if your business partner's name is Jim, the plan cannot state that "Jim is excluded from the plan." Instead, Jim's role in the business is excluded from the plan. This ensures that the exclusion is not discriminatory.

To create a One Participant 401(k) for a business with multiple partners, you'll need to choose one or more members to be the named plan trustee(s). The documentation will accommodate either one trustee or two co-trustees.

Related reading: S Corp Solo 401k

Types of Partnerships

Credit: youtube.com, Hands-On 2025 Solo 401k Contribution Calculator for Partnerships (Mega Backdoor Roth Demos)

A Solo 401(k) plan can be opened by an LLC with multiple partners, as seen in an LLC business owned by three couples.

A notable example of this is a partnership of three couples who established a Solo 401(k) plan sponsored by their partnership.

There are no employees other than the partners themselves in such scenarios, who are also the business owners.

These plans typically have higher contribution limits than other small-business retirement plans.

Curious to learn more? Check out: 401k for Llc Owners

401(k) in Partnerships

A Solo 401(k) plan can be opened by an LLC with multiple partners, just like a single-owner business.

You can even have three couples as partners and still open a Solo 401(k) plan, as long as there are no employees other than the partners themselves.

To be eligible for a Solo 401(k) plan, a multiple-member LLC must meet just two requirements: the presence of self-employment activity and no full-time employees other than the owner or spouse.

A different take: Owner Only 401k

Credit: youtube.com, 📅2024/2025 Solo 401k Contribution Guide (Partnership/Multi-Member LLC/1065/K-1)

In fact, partners are allowed in a Solo 401(k) plan, and this applies even if you have a different business structure like an LLC, S-corp, or C-corp with multiple partners.

If your business partner's name is Jim, the plan provider will create a customized plan that excludes their role in the business, not their name, to avoid discrimination.

An LLC can open a Solo 401(k) plan with or without common law employees, and if the only employees are the partners, it should qualify as a one-participant plan.

To create a one-participant 401(k) for a business with multiple partners, the business owners need to choose one or more members to be the named plan trustee(s).

Here are the key eligibility requirements for a multiple-member LLC to open a Solo 401(k) plan:

  • Presence of self-employment activity
  • No full-time employees other than the owner or spouse

One partner can be eligible to open a Solo 401(k) regardless of what the other partner does, as long as the partner opening the Solo 401(k) meets the self-employment income requirement and the business has no full-time employees other than a spouse.

Frequently Asked Questions

Who cannot open a Solo 401k?

Business owners with employees other than a spouse cannot open a Solo 401(k). This plan is limited to solo entrepreneurs or those with a spouse as their only employee.

Can a business owner have a Solo 401k?

Yes, business owners can have a Solo 401(k) plan, including sole proprietors, partnerships, and owner-only corporations with no employees other than a spouse. This plan offers a flexible and tax-advantaged way for self-employed individuals to save for retirement.

Can I have a Solo 401k without an LLC?

No LLC is required to open a Solo 401(k), as long as you're a self-employed individual or business owner

Angel Bruen

Copy Editor

Angel Bruen is a seasoned copy editor with a keen eye for detail and a passion for precision. Her expertise spans a variety of sectors, including finance and insurance, where she has honed her skills in crafting clear and concise content. Specializing in articles about Insurance Companies of Hong Kong and Financial Services Companies Established in 2013, Angel ensures that each piece she edits is not only accurate but also engaging for the reader.

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