No, 401(k) fees are not tax deductible for individual participants. The Tax Cuts and Jobs Act suspended the miscellaneous itemized deduction that once covered investment expenses starting in 2018, and the One Big Beautiful Bill Act of 2025 made that repeal permanent.1Legal Information Institute. Tax Cuts and Jobs Act of 20172Congress.gov. Tax Provisions in H.R. 1, the One Big Beautiful Bill Act The good news is that most 401(k) fees never touch your after-tax money in the first place, so the lost deduction is smaller than it sounds. Employers, and self-employed people running a solo 401(k), can still deduct plan costs as a business expense.
The Personal Deduction Is Permanently Gone
Before 2018, investment management and advisory fees paid out of pocket could potentially be claimed as miscellaneous itemized deductions. The TCJA eliminated that entire category of deductions for tax years 2018 through 2025. That temporary suspension was scheduled to sunset at the end of 2025, which would have restored the old rules for the 2026 tax year. Instead, the One Big Beautiful Bill Act signed in 2025 converted the suspension into a permanent repeal.2Congress.gov. Tax Provisions in H.R. 1, the One Big Beautiful Bill Act
There is no sunset date, no scheduled restoration, and no workaround through another deduction category. If you pay a 401(k) advisory fee, custodial charge, or similar expense from your checking account with after-tax dollars, that payment produces no federal tax benefit.
Why Most 401(k) Fees Already Get a Kind of Tax Break
The deduction question matters less than most participants assume, because the vast majority of 401(k) fees are paid inside the plan rather than out of your pocket. Investment management fees are almost always embedded in the fund’s expense ratio: the fund company subtracts its fee from returns before crediting your account, and you never see a separate bill. Recordkeeping and administrative charges are frequently deducted straight from your account balance.3Internal Revenue Service. Retirement Topics – Fees
Every dollar of those fees comes out of pre-tax money you contributed, money you have never paid income tax on. The fees shrink your account balance, which lowers the amount you will eventually owe tax on at distribution. That isn’t a deduction in the Schedule A sense, but economically the result is close: dollars leaving your account as fees are dollars you will not be taxed on later.
Fees You Pay Out of Pocket
Some 401(k) fees do get billed to participants directly, usually for optional services such as financial planning, loan processing, or specialized account work. Those payments come from after-tax funds. Before 2018 they were the only 401(k) fees that were even theoretically deductible, and only if your total miscellaneous expenses cleared 2% of your adjusted gross income and you itemized. Now they carry no deduction at all.
There is one reason you might still choose to pay a fee personally rather than let it come out of the account: doing so leaves more pre-tax money invested and compounding. Whether that trade is worth it depends on the size of the fee and how long you have until retirement. For small routine charges, letting the plan handle them is usually simpler.
When the Employer Pays the Fees
When an employer covers plan administration, recordkeeping, compliance, or legal fees, the company deducts those payments as ordinary and necessary business expenses under Section 162.4Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses Employer contributions to the plan itself, including matching contributions, are deducted separately under Section 404.5Office of the Law Revision Counsel. 26 USC 404 – Deduction for Contributions of an Employer to an Employees Trust or Annuity Plan and Compensation Under a Deferred-Payment Plan
For participants this is a real, if indirect, benefit. Fees the employer pays never reduce your account balance, so more of your contributions and their earnings stay invested. Whether the employer absorbs plan expenses or passes them through to participant accounts is a meaningful difference between retirement plans, and it rarely shows up in a standard benefits summary. It’s worth asking.
Solo 401(k) Owners Get the Business Deduction
A self-employed person running a solo 401(k) is on both sides of the plan. As the sponsor, you can deduct the plan’s administrative costs, including recordkeeping fees, setup costs, and compliance expenses, as a business expense on Schedule C under Section 162.4Office of the Law Revision Counsel. 26 USC 162 – Trade or Business Expenses The permanent repeal of the miscellaneous itemized deduction doesn’t touch this, because the deduction runs through the business rather than through Schedule A. If you pay solo 401(k) fees personally instead of from the account, keep the receipts and put them on your business return.
What Actually Reduces Your Fee Burden
Since the deduction lever is gone, the only real move is to keep your fees low to start with. A few things that make a measurable difference:
- Read the annual fee disclosure your plan is required to send you. Look at each fund’s expense ratio and any flat-dollar administrative charges being pulled from your balance.3Internal Revenue Service. Retirement Topics – Fees
- Choose lower-cost index funds when your plan offers them. The expense-ratio gap between an index option and an actively managed fund can run into thousands of dollars over a career at the same contribution level.
- Watch for revenue sharing. A fund with a slightly higher expense ratio can end up cheaper overall if part of that ratio offsets a recordkeeping fee you’d otherwise pay separately.
- Raise high fees with your employer. Plan sponsors have a fiduciary duty to keep fees reasonable, and many haven’t reviewed their provider in years. A flag from a participant sometimes prompts one.
One percent in annual fees sounds trivial. On a $500,000 balance it’s $5,000 leaving your account every year, and the drag compounds. The fact that those dollars are pre-tax softens the hit at distribution, but a dollar staying invested still beats a dollar going to fees, whatever its tax status.