Pause before you move the account

Common 401(k) Rollover Mistakes to Avoid

Most rollover problems are not caused by choosing an obviously bad account. They occur when a decision is made before important plan, tax, or investment facts are collected. A short review before signing forms can preserve choices and reduce preventable errors.

By Todd A. Rosen, CRPC®, AWMA®, CAIA®Wealth Management Advisor · West Hartford, Connecticut

Why it may matter

Understand the issue before acting.

Some mistakes can be corrected. Others, including certain actions involving employer stock or missed rollover procedures, may permanently change the available tax treatment or create an unexpected tax bill.

1. Moving employer stock before evaluating NUA

Rolling appreciated employer shares into an IRA generally makes NUA treatment unavailable for those shares. Compare the potential NUA path with the rollover before the stock moves, even if the eventual conclusion is that a full IRA rollover is more appropriate.

2. Ignoring useful plan features

A workplace plan may offer institutional pricing, stable-value options, advice services, loan provisions, or withdrawal rules that differ from an IRA. Document what would be given up as well as what would be gained.

3. Comparing investments but not total costs and services

Compare plan administration, investment expenses, IRA and brokerage charges, advisory fees, transaction costs, and the services received. A longer investment list is not automatically better, and a lower visible fund expense is not the entire comparison.

4. Receiving a check without understanding the rollover rules

A retirement-plan distribution paid to you can be subject to mandatory withholding and a 60-day deadline for an eligible rollover. A properly handled direct rollover can avoid those procedural issues. Confirm payee instructions before the plan sends money.

5. Overlooking loans, after-tax money, and distribution rules

Plan loans, Roth sources, after-tax contributions, required minimum distributions, beneficiary accounts, and access before age 59½ may need separate treatment. A single instruction for the entire balance can miss these differences.

6. Treating the rollover as an isolated account decision

The destination should support retirement income, taxes, Social Security, Medicare, risk management, beneficiary planning, and the needs of a spouse. The most convenient account is not necessarily the best fit for the full plan.

Watch and read

NUA mistakes to avoid

This short video highlights why an apparently routine withdrawal can affect a later NUA analysis.

Written summary: The takeaway is to pause before the first transaction and confirm eligibility, triggering events, lump-sum requirements, and how the entire plan balance will be handled.

Key concepts

Prior distributions can matter
Lump-sum requirements extend beyond the stock position
Plan, brokerage, IRA, and tax instructions should be coordinated

What else should I know?

What should I consider before rolling over a 401(k)?

Compare every available destination, total costs, investments, services, withdrawal provisions, plan protections, taxes, employer stock, loans, and how the account fits the complete retirement plan.

Can a rollover create an avoidable tax bill?

A direct rollover of eligible assets is generally designed to preserve tax deferral, but distributions paid to you, missed deadlines, ineligible amounts, loans, or incorrect instructions can create withholding or tax consequences.

Is consolidating accounts always helpful?

Consolidation can simplify administration, but simplicity should be weighed against plan features, investments, costs, protections, withdrawal rules, and tax opportunities that may be lost.

Official information

Additional resources

IRS: Rollovers of retirement plan and IRA distributions

Planning connections

See how the decisions fit together.

Company stock, retirement accounts, taxes, and investment risk can affect one another. These links provide broader context.

Should I roll my 401(k) into an IRA?Review the alternatives, features, costs, services, and risks.What is NUA?Understand the general rules before employer shares are moved.Company stock in a 401(k)Consider concentration and retirement-income risk alongside tax treatment.