Educational only. Not financial, tax, or legal advice.
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Today
Retirement
Results
Step 1: Behavioral Factors (Educational)
This tool is not just math. These questions help estimate whether a strategy is likely to be implemented as modeled.
Educational Use Only
This tool is for educational purposes only and is not financial, tax, or legal advice.
This step reviews behavioral factors only. The tax math step may indicate a different outcome depending on your inputs and rules such as required minimum distributions (RMDs), Medicare premium surcharges (IRMAA), and Social Security taxation.
Behavioral Factors (Educational Summary)
This is not a recommendation. Continue to the tax math estimate to complete the analysis.
Step 2: Your Situation Today
Fill in what you know. If you're not sure, the default values are reasonable placeholders - you can refine later.
If your state has no income tax, use 0.
This changes what ends up inside the Roth and what is available elsewhere.
Annual contribution
This changes what the math is holding constant when comparing Traditional vs Roth.
Long-term estimate (used for both options).
Use household income if filing jointly.
Step 3: Your Retirement Picture
This helps estimate the taxes you might pay later (including Social Security rules and Medicare surcharges).
If unsure, use an estimate. Adjusted for inflation automatically.
Adjusted for inflation automatically.
In today's dollars (the calculator inflates this forward).
Used to grow expenses to retirement.
This matters because future withdrawals (and required withdrawals) can increase taxes and Medicare premiums.
See Your Results
Enter your email to unlock the results. This is educational only and not financial, tax, or legal advice.
Results (Educational Estimate)
Educational Use Only
This output is an educational estimate based on your inputs and simplified assumptions. It is not financial, tax, or legal advice.
Tax outcomes can change due to tax law, filing details, withdrawal strategy, and rules such as Social Security taxation, IRMAA thresholds, and RMDs.
Quick Summary (What Most People Care About)
Strategy
Estimated Total Spendable
Assumption
Details below show how these totals were estimated.
Traditional (Invest Tax Savings)
Contribution Amount$0
Taxes Deferred During Contribution Years$0
Total Contributed (Sum)$0
Growth After 0 Years$0
Balance Before Withdrawal$0
Tax Paid at Withdrawal$0
Final Spendable Amount$0
+ If you invest the tax savings (Regular/Taxable Account)
Tax Savings Invested$0
After-Tax Growth$0
Value After Tax$0
Combined Total Spendable$0
Traditional (Do Not Invest Tax Savings)
Contribution Amount$0
Taxes Deferred During Contribution Years$0
Total Contributed (Sum)$0
Growth After 0 Years$0
Balance Before Withdrawal$0
Tax Paid at Withdrawal$0
Final Spendable Amount$0
This scenario assumes the extra take-home pay from Traditional is spent (not invested).
Roth
Contribution Amount$0
Taxes Paid During Contribution Years$0
Total Contributed (After Tax)$0
Growth After 0 Years$0
Balance Before Withdrawal$0
Tax Paid at Withdrawal$0
Final Spendable Amount$0
Estimated Comparison (Educational)
Behavioral Factors (Educational)
Tax Details
Simple Summary
1. Taxes later may be higher
2. Taxes later may be lower
3. Maxing out contributions changes the math
4. Having both can add flexibility
Having both Roth and Traditional can give you more control over taxes later (more flexibility in what you withdraw).
Understanding the Math
The Core Idea
Traditional: You get a tax break now, but pay taxes later when you withdraw.
Roth: You pay taxes now, but withdrawals can be tax-free later.
If your tax rate now is about the same as your tax rate later, the results are often very close.
What Really Matters
Tax rate now vs tax rate later
Time of contribution vs time of withdrawal
NOT your peak earning years in between
Common Misconceptions
Investment return alone doesn't "make Roth win" or "make Traditional win"
A longer time horizon doesn't automatically pick a winner
Higher income later doesn't always mean higher taxes in retirement
Required withdrawals (RMDs) matter most when they push you into higher taxes/Medicare costs
Real-World Considerations
Social Security can become more taxable as other income rises
The standard deduction reduces taxable income
Capital gains taxes are often lower than ordinary income taxes
Medicare premiums can increase at certain income levels