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Resource Guide

401(k) Rollover Guide: Options, Rules & Mistakes to Avoid

What to do with your old employer retirement plan — and the costly mistakes most people make.

Quick Answer

A 401(k) rollover moves retirement savings from a former employer's plan into an IRA you control. The best option — rollover IRA, Roth conversion, stay in plan, or roll to new employer — depends on your fees, investment options, tax situation, and age. SKG evaluates every option with your specific numbers. Never cash out.

Your 5 Options

Roll Over to an IRA

Most popular option. A direct rollover to a traditional IRA preserves tax-deferred status, gives you vastly more investment choices, and typically lowers fees. You maintain full control and can consolidate multiple old 401(k)s into one account.

Best for most people leaving a job or retiring.
Convert to a Roth IRA

Rolling into a Roth IRA triggers income tax on the full amount now, but all future growth and withdrawals are tax-free. This can be powerful if you are in a low-income year or expect higher future tax rates.

Best for early retirees in low-tax years or young professionals.
Leave in Former Employer Plan

If your old plan has excellent, low-cost investment options and you have over $5,000 in the account, leaving it in place is sometimes reasonable. You lose consolidation benefits and may have limited investment options.

Sometimes reasonable if plan costs are very low.
Roll to New Employer Plan

If your new employer offers a 401(k) with good options, you can roll your old balance into it. This consolidates accounts but limits you to the new plan's investment menu.

Can make sense if new plan has institutional pricing.
Cash Out (Avoid This)

Cashing out triggers income tax plus a 10% early withdrawal penalty if under 59½. A $100,000 cashout could cost $30,000-$40,000 in taxes and penalties — permanently destroying decades of compounding.

Almost never the right choice. Avoid unless absolutely necessary.
Last updated: March 2026 · Written by Jonah J. Watt · SKG Wealth Management

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