If you’re fortunate enough to have access to multiple retirement savings plans—like a 401(k), 403(b), pension, or deferred compensation plan—you may find yourself wondering how to make them all work together. Each of these vehicles comes with its own rules, tax treatments, and timelines, and if they aren’t strategically coordinated, you could miss out on opportunities for long-term growth or find yourself in a higher tax bracket later on.
Here’s how to think about each component and how they can complement one another when approached with a clear financial plan.
Understanding the Landscape
401(k) and 403(b):
These are tax-advantaged retirement accounts commonly offered by private and nonprofit employers, respectively. Both allow for pre-tax (or Roth) contributions and offer tax-deferred growth. For 2025, contribution limits are $23,000 if you're under 50, with an additional $7,500 catch-up if you're 50 or older.
Pensions:
Pensions provide a defined benefit based on your salary and years of service. While you don’t control how the money is invested, pensions can offer a stable income stream in retirement. They are generally taxable upon distribution.
Deferred Compensation Plans:
These plans allow you to defer a portion of your income until retirement or another specified date. The key benefit is the ability to reduce your current taxable income—but beware, these plans are not protected like 401(k)s and are subject to your employer's solvency.
Tax Efficiency: The Key to Retaining More of What You Earn
When coordinating these accounts, the goal is to minimize the taxes you pay over your lifetime—not just in any one year. A few strategies include:
Diversify Your Tax Buckets
Don’t put all your eggs in one pre-tax basket. Having a mix of tax-deferred (401(k), 403(b), pension), tax-free (Roth), and taxable assets can give you more control over your taxable income in retirement. Consider converting some assets to Roth accounts gradually, especially in lower-income years. Roth conversions can benefit people in several seasons of life.
Time Your Distributions Wisely
Each type of account has its own rules for withdrawals. For example, Required Minimum Distributions (RMDs) typically begin at age 73 for traditional retirement accounts. Deferred comp plans may require distributions shortly after retirement or over a defined timeline.
A well-thought-out distribution plan can help prevent being pushed into a higher tax bracket when multiple sources of income hit all at once.
Watch for Medicare and IRMAA Thresholds
High taxable income in retirement can increase your Medicare premiums due to Income-Related Monthly Adjustment Amounts (IRMAA). Coordinating withdrawals from tax-free and tax-deferred sources can help keep your income below these thresholds.
Understand the Interaction Between Plans
If you’re eligible to contribute to both a 403(b) and a 457(b) (common in public education or healthcare), you may be able to double your retirement savings by maxing out both. Meanwhile, you’ll want to carefully coordinate deferred compensation with your pension start date to avoid a tax-time surprise.
Planning for Long-Term Growth
It's not just about taxes—growth matters too.
- Investment Allocation: Review the investment options across your plans. Some pensions and deferred comp plans have limited menus. You may need to tilt your 401(k) or brokerage account toward growth if your other accounts are more conservative.
- Rebalancing Across Accounts: Don’t view each plan in a silo. Your entire retirement portfolio should work as one, with each account playing a role in your overall asset allocation and risk management strategy.
- Align With Your Retirement Timeline: Deferred comp plans may not be as flexible as your 401(k) or Roth IRA. Make sure the timing of each payout aligns with your retirement goals, income needs, and tax picture.
The Value of a Coordinated Approach
A good financial plan doesn't just look at one account—it connects the dots across your entire financial life. That includes understanding how and when to draw from each account, keeping your taxable income in check, and maximizing the growth potential of your investments.
If you have multiple retirement plans and are unsure how to bring them together, working with a financial advisor can help you make the most of what you’ve built. With the right strategy, you can reduce your lifetime tax burden and give your money the best chance to grow and support your goals for decades to come.
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