Roth Conversion Guide for Cisco Employees
Roth conversions are one of the most effective tools for managing your tax burden in retirement. If you’re planning to retire soon, this strategy could help save you thousands in the long run.
What Is a Roth Conversion?
A Roth conversion means moving money from a pre-tax retirement account, such as a traditional IRA or 401(k), into a Roth IRA. When moving the funds, the amount you convert is taxed as ordinary income for that year. After that, the money will grow tax-free in your Roth account, and withdrawals are tax-free in retirement.
Unlike contributing directly to a Roth IRA, Roth conversions have no annual limits or income restrictions. The only cost is paying income taxes on the converted funds.
Why Retirement Is the Best Time for a Roth Conversion
If you’ve spent years contributing to your Cisco 401(k), you may be preparing to retire with substantial pre-tax savings. When you withdraw that money later, it will be taxed as ordinary income. And once you turn 73, you will have to start making required minimum distributions (RMDs), whether you need the money or not. This can easily push you into a higher tax bracket.
A Roth conversion puts you ahead of that problem. By moving pre-tax money into a Roth IRA before RMDs kick in, you can pay taxes on your own terms, and likely at a lower rate than you will once Social Security and other retirement income kicks in.
For many employees, early retirement is the perfect time to execute this strategy. During those years, you may have little or no earned income, Social Security may not have started yet, and your taxable income could be the lowest it will ever be. Converting during these years lets you move the money while still maintaining a low tax bracket.
Roth conversions can also make sense during:
A layoff year: If you are laid off, your income for the year may drop significantly. That can create bracket space for Roth conversions.
A year with large deductions: If you have unusually high deductions in a given year, such as large charitable contributions, those can offset the income from a conversion and reduce the tax cost.
What Accounts Can You Convert?
You can convert funds from any pre-tax retirement account into a Roth IRA. For most Cisco employees, that means:
Traditional IRA: The most straightforward conversion. You can convert any amount at any time directly to a Roth IRA.
Cisco 401(k): You can roll your pre-tax 401(k) balance into a traditional IRA first, then convert to Roth. You may also be able to roll directly from the 401(k) into a Roth IRA in one step. (Note that you must already be separated from Cisco to roll your 401(k) out of the plan.)
Rollover IRA: If you have pre-tax 401(k) balances from previous employers sitting in a rollover IRA, those are also eligible for conversion.
One important caveat is the pro rata rule. If you have any pre-tax money in a traditional IRA, the IRS treats all of your IRA dollars as a single pool when calculating the tax on a conversion. You can’t cherry-pick only after-tax dollars to convert tax-free. This matters most for people who have done a backdoor Roth contribution and also have pre-tax IRA balances
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Tips for Smarter Roth Conversions
1. Convert to the Top of Your Bracket, Not Beyond It
When performing a Roth conversion, the most common approach is bracket filling. That means converting just enough each year to bring your taxable income to the top of your current bracket without crossing into the next one. For example, if you are married filing jointly in 2026 and your taxable income is $150,000, you are in the 22% bracket, which tops out at $206,700. You could convert up to $56,700 while still staying in that 22% bracket.
2. Pay the Tax Bill From Outside Your Retirement Accounts
The tax you owe on a conversion should ideally come from cash or taxable savings, not from the account you are converting. Using retirement funds to cover the tax reduces the amount benefiting from tax-free growth and may trigger a penalty if you are under 59½ (or 55 per the rule of 55).
3. Watch Out for IRMAA
Because Roth conversions count as income, they can trigger higher Medicare Part B and Part D premiums. This is called an income-related monthly adjustment amount (IRMAA) surcharge. There is a two-year lookback, so a large conversion in 2026 could affect your 2028 Medicare premiums. This is worth modeling before converting a large amount in a single year.
4. Think About the Five-Year Rule
Roth conversions are subject to a five-year holding period before the converted funds can be withdrawn penalty-free. Each conversion starts its own five-year clock, so if you are converting close to retirement and might need the funds early, this is worth factoring in.
5. Spread Conversions Over Multiple Years
A series of smaller conversions over several years generally produces better tax results than one large conversion. It gives you more control over your bracket, your IRMAA exposure, and how much Social Security income becomes taxable.
6. Talk to a Financial Advisor
Roth conversions involve a lot of moving parts, and the right amount to convert depends on your full financial picture.
A fiduciary financial advisor can help you:
Model different scenarios
Pick the right conversion amount for each year
Make sure your strategy accounts for RMDs, Medicare premiums, Social Security timing, and your broader retirement income plan
Roth Conversions vs. the Mega Backdoor Roth
Roth conversions and the mega backdoor Roth are both ways to get money into a Roth account, but they work differently and serve different purposes.
The mega backdoor Roth is a strategy you use while still employed at Cisco. Using this program, you can make after-tax contributions to your 401(k), then convert or roll those contributions into a Roth account. This helps you build up Roth savings during your working years, above and beyond the standard 401(k) contribution limits.
A Roth conversion is something you do after you already have pre-tax savings sitting in a traditional IRA or 401(k). Rather than contributing new money, you are moving existing pre-tax balances into a Roth IRA and paying tax on them now. Once you retire, Roth conversions take over as the primary strategy for managing your pre-tax balance and reducing future RMDs.
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Work With a Trusted Fiduciary Firm in Bellevue
Roth conversions can save you thousands over the course of retirement, but getting the most out of the strategy requires careful planning. At TrueWealth Financial Partners, we specialize in helping Cisco employees navigate exactly this kind of retirement tax planning.
As a fee-only fiduciary firm based in Bellevue, we do not sell products, earn commissions, or push annuities. All we do is give you proven strategies to help you build your wealth and save more for retirement.
If you’re thinking of retiring soon, schedule a free 15-minute intro call with our team to get started. Together, we can build a retirement plan that works for you. Let’s talk!
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FAQs
Can I undo a Roth conversion if I change my mind?
Since 2018, the IRS has not allowed recharacterizations of Roth conversions. Once you convert, the decision is permanent. This makes planning ahead all the more important, since you cannot reverse a conversion if your tax situation changes unexpectedly during the year.
Do Roth conversions affect my Social Security benefits?
Not directly, but they can affect how much of your Social Security is taxable. The IRS uses your combined income to determine what percentage of your Social Security benefits are taxable. A large conversion in a single year could push more of your Social Security income into taxable territory, which is one reason to spread conversions across multiple years.
Is there a deadline for Roth conversions?
Roth conversions must be completed by December 31 to count for a given tax year. Unlike IRA contributions, you cannot convert funds after year-end and apply them to the prior year.
Can I do a Roth conversion if I am still working at Cisco?
You can, but it is rarely wise to do so. While you are still earning a Cisco salary, your income is likely near its peak, which means the converted amount will be taxed at your highest marginal rate. Most employees are better off waiting until after they retire, when their income drops and bracket space opens up.
Do I need to file any special tax forms after a Roth conversion?
You will receive a Form 1099-R from your IRA custodian showing the distribution, and you will need to report the conversion on your tax return. If you have made any non-deductible IRA contributions, you will also need to file Form 8606 to track your basis and ensure you are not taxed twice on after-tax amounts.
Can I convert just part of my IRA, or does it have to be all at once?
You can convert any amount you choose. Partial conversions are often the most tax-efficient approach, since converting the full balance in one year would likely push you into a higher bracket.