How to switch 401(k) providers without disrupting your team
Many owners stay with a 401(k) provider they have outgrown because switching sounds disruptive. A change of recordkeeper is routine, but it runs on fixed notice periods, so it pays to plan it. Here is what the process involves and how long it usually takes. Wondering whether your plan is worth changing? Request a plan review.
Signs it may be time to switch
- You can’t easily tell what the plan costs, or who is paid what.
- Investment options are expensive or limited to one company’s funds.
- Service is slow, payroll uploads are manual, or errors keep recurring.
- No one has reviewed the plan’s investments or design in years.
Step 1: Read your current contract
Start with the service agreement and the fee disclosure your provider must give you as plan sponsor (often called the 408(b)(2) disclosure). Look for termination fees, surrender charges on annuity-based products and the required notice period. These affect timing and cost.
Step 2: Compare providers and costs
Break costs into recordkeeping and administration, advisory fees, investment expenses and participant-level fees (see how to benchmark your 401(k) fees). Comparing total cost and service side by side is part of the sponsor’s fiduciary duty to pay only reasonable fees (see your fiduciary duties as a plan sponsor).
Step 3: Set the timeline
A conversion commonly takes three to four months from signing to the first contributions at the new provider. Many owners avoid year-end, when testing and tax filings are underway.
Step 4: Send the required notices
- Blackout notice. If participants will be unable to direct investments or take loans or distributions for more than three consecutive business days, they must receive a written notice at least 30 days, and no more than 60 days, before the blackout begins.
- Fee and investment disclosures. Participants receive updated fee and investment information for the new lineup before it takes effect.
- Mapping notice. If existing balances will move into similar funds at the new provider, participants are told how the old funds map to the new ones.
Step 5: Move the money and check the work
During the blackout the old provider sells the investments and transfers cash to the new one, which reinvests it according to the mapping. Afterward, reconcile balances, confirm loans and payroll feeds carried over correctly, and keep a record of why the change was made.
Keep the plan document in step
A new provider may restate the plan on its own document. It is a good moment to revisit plan design, such as auto-enrollment or a safe harbor match, but some changes must be timed to the plan year.
Common questions
How long does it take to switch 401(k) providers?
A conversion commonly takes three to four months from signing with the new provider to the first contributions there, including the required participant notice period.
Do employees lose money when a 401(k) changes providers?
Balances are sold and transferred as cash, then reinvested at the new provider, so they are briefly out of the market during the blackout. Participants must receive a blackout notice at least 30 days, and no more than 60 days, in advance.
Can I switch 401(k) providers in the middle of the year?
Yes. A change of recordkeeper can happen at any time, though many sponsors avoid year-end. Some plan design changes must still be timed to the plan year.
Want a second opinion on your current plan?
Send us your latest fee disclosure, and we’ll review cost, investments and design with you. The initial plan review is complimentary, and we aim to reply within one business day.
Request a plan reviewGeneral educational information as of September 27, 2026; limits and rules change. Not individualized investment, tax or legal advice. Consult your tax adviser about your situation.