Many aspiring physicians spend their twenties and early thirties accumulating debt and surviving on resident salaries, while their peers in other industries are already compounding their investments. It’s a reality that Sermo members attest to: “Physicians are at a big economic disadvantage compared to other professionals,” writes one dermatologist.
Physician retirement planning requires a strategic approach to catch up and build lasting wealth. Fortunately, you have tools like the backdoor Roth IRA at your disposal. The proposed “Build Back Better Act,” a bill that would have disallowed backdoor Roth IRAs, did not pass, and so the strategy remains fully permitted under current IRS tax codes. You can utilize this investment strategy to bridge the financial gap created by extended years of medical training.
Disclaimer: This article is for educational purposes only and does not constitute financial, tax, or investment advice. Physicians should consult a Certified Public Accountant (CPA) or qualified tax professional before making decisions regarding retirement planning or backdoor Roth IRA strategies.
What is a backdoor Roth IRA, and how does it work?
A Roth IRA is an incredibly powerful investment vehicle because money grows tax-free, and qualified withdrawals in retirement (generally after age 59.5 and once the account has been open at least five years) are not taxed.
Another advantage of Roth accounts is tax diversification. Many physicians accumulate large balances in pre-tax accounts such as 401(k)s and 403(b)s throughout their careers. While these accounts reduce taxes today, withdrawals in retirement are taxed as ordinary income. A Roth IRA provides a complementary source of retirement funds that can be withdrawn tax-free if IRS rules are met, giving retirees more flexibility when managing their tax brackets later in life.
However, the IRS prevents high earners from contributing directly to a Roth IRA. This is where the “backdoor” strategy comes into play. You bypass the income restrictions by executing a two-step process:
- First, you make a non-deductible (after-tax) contribution to a traditional IRA, which has no income limits for contributions (although income limits determine whether those contributions are tax-deductible).
- Second, you immediately convert that traditional IRA into a Roth IRA. In many cases, if the contribution is converted quickly and no other pre-tax IRA balances exist, little or no tax is owed on the conversion.
A physician backdoor Roth IRA is effectively a traditional IRA that has been strategically repurposed. Once the money lands in the Roth account, you can invest it in mutual funds, index funds or individual stocks, allowing it to compound tax-free for decades. “I maximize my retirement accounts and invest in low-cost index funds with expense ratios all less than 0.10%,” shares one neurologist on Sermo.
How a backdoor Roth IRA can benefit high-income physicians
The IRS enforces strict income limits that change annually and restrict who can directly fund a Roth account. In 2026, full contribution eligibility starts for individuals earning $252,000 or less. Specifically, the phase-out limits for a direct Roth IRA contribution are a Modified Adjusted Gross Income (MAGI) of between $153,000 and $168,000 for single filers and between $242,000 and $252,000 for those married filing jointly.
Because most attending physicians earn salaries above these MAGI limits, they cannot contribute directly. The backdoor Roth IRA provides a solution, allowing you to maintain access to a hedge against future tax hikes. Since physician salaries often fall within the highest marginal tax brackets, shielding a portion of your wealth in an account that the government cannot tax upon withdrawal is a massive advantage.
The pro rata rule in backdoor Roth IRAs
A common trap you might fall into when attempting this maneuver is the pro rata rule. When you convert a traditional IRA to a Roth IRA, the IRS does not allow you to pick and choose which dollars you are converting. They view all of your non-Roth IRAs (including traditional IRAs, SEP IRAs, and SIMPLE IRAs) as one bucket of money.
If you have an old “rollover IRA” filled with pre-tax money from your residency or a previous employer, the IRS applies a proportional tax to your conversion. If 90% of your total IRA assets are pre-tax and 10% are after-tax, then 90% of your backdoor Roth conversion will be taxed at your current income rate. This ruins the tax efficiency of the strategy and results in a tax bill.
To solve this problem, you need to clear your pre-tax IRA balances before December 31 of the year you perform the conversion. The most effective approach is to move these assets into an employer-sponsored retirement plan that is excluded from the IRS pro-rata calculation. The IRS does not count 401(k) or 403(b) balances in the pro rata calculation, leaving your IRA balance at $0 and clearing the path for a tax-free backdoor conversion.
One additional rule you should be aware of is the Roth IRA five-year rule. Each Roth conversion has its own five-year clock for penalty-free withdrawals of converted funds. While this rarely affects long-term retirement investors, it can matter if you plan to access Roth funds earlier in retirement. In practice, most high-income physicians use the backdoor Roth as a long-term wealth-building strategy and leave the assets untouched for decades, allowing the full benefit of tax-free compounding.
Form 8606, and how to report to the IRS successfully
The transfer is only half the battle. The other half is ensuring the IRS knows exactly what you did. This requires filing IRS Form 8606 with your annual tax return.
Form 8606 tracks your non-deductible contributions to traditional IRAs. By filing this form, you are officially telling the federal government that the money you put into the traditional IRA had already been taxed. If you fail to file this form, the IRS will assume your conversion was made with pre-tax money, and they will tax you a second time on the same dollars.
It can cost you to hand over your brokerage tax documents (like the 1099-R) without explicitly mentioning the strategy to your CPA. Instead, clearly inform your tax professional that you made a non-deductible contribution and executed a backdoor Roth conversion so they can generate and file Form 8606 accurately.
How to convert to a backdoor Roth IRA as a physician
If you want to execute a backdoor Roth IRA, follow these steps carefully to ensure your conversion is compliant.
Step 1: Clear the path (the “pro rata” check)
Before contributing a single dollar, ensure your total balance in all traditional, SEP, and SIMPLE IRAs is exactly $0. If you have $100,000 in an old rollover IRA and attempt to convert $7,500, the IRS will tax the conversion proportionally under the pro rata rule.
If you have an existing IRA balance, perform a “reverse rollover.” Contact your current employer’s HR department or retirement plan administrator to move those pre-tax IRA funds into your current 401(k) or 403(b) before December 31. Check with your employer’s plan administrator to confirm whether your 401(k) or 403(b) accepts IRA rollovers, as not all plans permit this.
Step 2: Open and fund a traditional IRA
Choose a major brokerage platform (for example, Fidelity, Vanguard or Charles Schwab) and open a standard traditional IRA. Contribute up to the 2026 limit. The maximum allowed is $7,500, or $8,600 if you are age 50 or older.
Note: You must designate this as a non-deductible contribution when you eventually file your taxes. You are not taking a tax deduction for this deposit.
Step 3: Let the funds settle
Wait for your bank transfer to clear the brokerage system. This usually takes one to two business days but can sometimes take longer depending on your financial institution.
Leave the money in the default “settlement fund” or cash core account. Do not invest it in stocks or funds yet. You want to avoid generating any market gains before the conversion, as any growth in the traditional IRA will be taxable upon conversion.
Step 4: Convert to Roth
Once the funds have fully settled, log into your brokerage dashboard and look for the option to “convert to Roth” or transfer the funds to a Roth IRA. You may need to open a Roth IRA account if you do not already have one. Move the entire balance from the traditional IRA directly into your Roth IRA.
If you have no other IRA balances and converted the cash quickly, your tax liability for this move should be $0, or perhaps a few cents of interest which is negligible. Once the money is safely in the Roth IRA, you can invest it in your preferred index funds.
Step 5: File Form 8606
As mentioned, when you file your taxes in early 2027 for the 2026 tax year, you must include IRS Form 8606. This form tells the IRS that your $7,500 contribution was made with after-tax dollars. Documenting this non-deductible status proves to the government that you should not be taxed a second time on the conversion.
Master financial hygiene for a wealthy retirement
The backdoor Roth IRA is perhaps the most efficient “financial hygiene” habit a physician can develop. The individual steps are straightforward, and the cumulative effect of decades of tax-free growth can make the difference between an adequately funded retirement and a wealthy one.
Granted, you may have lingering questions if you aren’t versed in retirement accounts. When you join Sermo, you can engage with more than 1 million other physician members to share insights and discuss advanced 2026 wealth-building strategies like tax-loss harvesting.
