Opening an Individual 401(k) at Vanguard

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Last updated on August 27, 2022 Comments: 17

Now that I’m not working for an employer other than myself, I no longer have the benefit of investing part of my salary in a company-managed 401(k), and I also no longer have the benefit of the employer-matched contribution. I’ll miss the 100% return on the first 4% of my pay. Before leaving my day job, I researched my options for replacing my employer’s 401(k), and after carefully considering my choices, I decided to open an Individual 401(k) to accompany my already-existing SEP IRA.

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Benefits of an Individual 401(k)

There are two types of contributions that an Individual 401(k) — also called a Solo 401(k) — can take: employer’s contributions and employee’s contributions. There are slightly different rules for sole proprietors than there are for corporations. Since my business is a corporation, the maximum employee contribution is $16,500 or up to 100% of compensation, whichever amount is lower, just like a regular 401(k). This contribution, combined with the employer contribution, have a maximum of $49,000.

For tax purposes, the employee contributions are taken before they income is taxed and reduce the income of the employee, while the employer contributions are deducted from business income.

Choosing Vanguard

For me, choosing Vanguard for the Individual 401(k) made sense. Their low-cost Admiral shares will, if one believes the principle of investing in index funds and a buy-and-hold strategy, provide the best returns by the time I “retire.” There is an annual maintenance fee of $20 for the account per participant, but that fee is waived if you qualify for Vanguard’s Voyager Services. Once you have $50,000 at Vanguard across almost any type of account, you qualify for the eliminated fees with Voyager Services. In fact, if you have more than one employee, it only takes one employee to qualify for Voyager Services to fees to be eliminated for all participants.

Update: I signed up for Admiral shares in my Individual 401(k), but it turns out they are not available. Apparently, Vanguard does not want to offer Admiral shares in Individual 401(k) accounts because it would amount to unfairness between highly-paid employees and those who are not. Vanguard offers Admiral shares to encourage customers to move more money, but in situations where Vanguard is a an employer’s choice, rather than an individual’s choice, they want all employees to have a level playing field. (I would argue that they should offer the lower cost option to all employees if they want equity among various income levels.)

Although I chose Vanguard, many popular brokers offer Individual 401(k)s. Fidelity and T. Rowe Price are two low-cost options as well. My brick and mortar bank offered me the option when I visited the other day to talk about my business checking account, but I was not happy with their investment options and fees.

The opening process

Establishing a new Individual 401(k) is not as simple as applying for a savings account online, however. Visit the Small Business section of Vanguard’s website and locate the information on the Individual 401(k). There is a link to download the Individual 401(k) Kit for Employers. This is a PDF document that contains all the forms you need to establish a new Individual 401(k) for your business as well as accounts for any participants. The forms cannot be submitted online.

Here is what the kit includes:

  • Individual 401(k) Plan Adoption Agreement. This establishes the Individual 401(k) plan from the employer’s side.
  • Individual 401(k) Plan Authorization Form. This form informs Vanguard who will have access to make decisions about the 401(k) on the company’s behalf. Although Vanguard includes an attachment with this form as required by law, do not complete the Attachment A. If you complete the attachment and include it with your paperwork, Vanguard will not be able to establish or amend your plan as necessary.
  • Individual 401(k) New Account Form. I am my only employee, so I completed this form to establish the employee side of the Individual 401(k). If there were other employees, I could copy this form, have all employees provide their own information, and include the completed forms in the package.

When all forms are complete, just send the package back to Vanguard, to the address provided multiple times within the collection of forms. Not long after Vanguard receives the information, the brokerage will provide more information about how to contribute to your Individual 401(k). It took me longer than I wanted to get around to completing the forms, but it was much simpler than I imagined. You will be able to establish recurring contributions for the employer as well as the employees.

Accessing your Individual 401(k)

Vanguard has a separate website for small business customers. While I can view my Individual 401(k) using the normal user name and password I’ve had established for years, the Individual 401(k) requires me to establish a new user name and password for the small business side. All contributions, both employer and employee, will need to be established using this alternate user name. I don’t particularly like having two separate user names for the same brokerage.

After Vanguard processed my paperwork and established my account, I received an email to link my new participant account. Logging in was a frustrating process at first because I did not know that a new user name was necessary. The small business website rejected my user name, and I called customer service for help. The representative was able to explain the above to me, and I established my account. Furthermore, you cannot be logged into the individual investor side of and later log into the small business side. You must clear your browser’s cookies in order for the login to work properly.

Contributing to the Individual 401(k)

Like many businesses, it will be difficult for me to predict what my business income will be for 2011, and will therefore prevent me from knowing exactly what my personal income will be. While it’s usually better to invest as much as possible at the beginning of the year, this unpredictability leads many businesses to contribute to these plans at the end of the year. I’ll be investing throughout the year, month by month, once I determine each month’s income.

Article comments

Anonymous says:

Hmmm… Just ran into another limitation… It appears that you can’t set up automatic exchanges within your account. Perhaps not a big limitation for some, but it’s something that I’d like to be able to do. Instead, I will have to log in each month and make the exchange manually. Lame.

Anonymous says:

On a related note: does anyone know of a good reason(s) to stick with a company’s Vanguard retirement account after leaving? with the alternative being a rollover to a Vanguard Individual IRA? I don’t know what kind of perks to look for in my old company’s plan that I won’t have access to with an individual account.

Anonymous says:

Interested in hearing how much you’ll be contributing throughout the year. Keep us updated!

Anonymous says:

I’m also a huge fan of Vanguard. Are you eligible to have a brokerage account in your Individual 401(k)? You can buy any Vanguard ETF without any trading costs. The fee for VTI (Total US Stock Market) is 0.07%.

Anonymous says:

Have you considered just converting the 401(k) to a traditional IRA? I’m not sure if you can at your age, but I did this with my mother’s estate when my dad passed and went with Vanguard. I WAS able to get her into the Admiral class because it’s not a 401(k). They also offered a free analysis by one of their financial planners so I didn’t have to feel like I was offering advice without being certified. He basically confirmed my strategy was pretty sound :>

I love vanguard for their low fees and ethical biz practices.

Anonymous says:

FYI: There’s a “contribute” link associated with this account from within my personal account login. Clicking it gives me a popup of the smallbiz login. But when I enter my username and password, it gives me an error due to a redirect loop. Perhaps that’s due to the cookie problem that you mentioned. Seems a little clunky, especially since the presence of this link suggests that it’s possible to access the smallbiz site while logged into the personal site. But I can definitely make exchanges b/t funds in my 401(k) from within my personal login.

Anonymous says:

I’m a big fan of Vanguard. I have my SEP-IRA with them. Keep us up-to-date with more information about being self-employed, you know, for those of us still working away at our day jobs. 🙂
Rock on,

Anonymous says:

Regarding account access, I’m not sure why you can’t access everything from your personal login. My Individual 401(k) appears (along with my Roth IRA and taxable account) when I login using my personal credentials. I never go through the small biz site to manage my account.

Luke Landes says:

I can see my Individual 401(k) with my normal access, but it is “read-only.” Contributions require logging into the Small biz website, and that was confirmed by the CSR, whonalso confirmed that they are working on resolving the issue where moving from one site to the other requires some to clear browser cookies… And that’s kind of annoying.

Anonymous says:

Hmmm. I’m not sure about adding funds to the account, but it’s definitely not “read only,” as I can make exchanges b/t funds, etc. from within my personal login.

Anonymous says:

Vanguard is still the best low cost mutual fund. I have been a customer for 25 years.

Anonymous says:

I heard Admiral shares are not available for Individual 401k accounts.

Luke Landes says:

I discovered that as I looked into why my account was set up with the Investor shares rather than the Admiral shares as I requested.

Anonymous says:

You are correct. No Admiral shares in the Vanguard Individual 401(k). If you had a SEP-IRA, you could have them. Bummer, huh?

Anonymous says:

Isn’t it up to a maximum of $49,000 (that includes the $16,500) per year. So The maximum your company can contribute is $32,500. This is based upon the maximum salary your company pays yourself of $130,000? Do I have my numbers correct?

Luke Landes says:

Yes sir, I forgot to mention the maximum. I’ve added that into the article.

Anonymous says:

49000 is the maximum, however nowhere in the IRS rules does it limit the company contribution to 32,500. The limits are based on total business income. If the SP business income crosses 245,000 all of the 49,000 can be company contribution and no need for employee contribution.