Tax Strategy
Roth Conversion Calculator
Estimate the long-term tradeoff of paying tax now for future tax-free withdrawals.
Projection outlook
Follow how the balance builds over time as returns and new contributions compound together.
The path starts near $50,000 and ends around $137,952 by year 15.
Scenario comparison
Use the spread between scenarios to see how sensitive this outcome is to the assumptions you change first.
Optimistic currently leads conservative by about $21,890, which shows the approximate range across the modeled cases.
What changes the result most
Base
Tax arbitrage spread
$38,626
Optimistic
Tax arbitrage spread
$50,995
Conservative
Tax arbitrage spread
$29,105
Accessibility summary: Converting $50,000 now creates an immediate tax cost of $11,000. Base: $38,626 (Tax arbitrage spread) | Optimistic: $50,995 (Tax arbitrage spread) | Conservative: $29,105 (Tax arbitrage spread)
Results
A Roth conversion may add about $27,626 of long-term value.
Converting $50,000 now creates an immediate tax cost of $11,000.
Roth future value
$137,952
Pretax after tax
$99,325
Current tax cost
$11,000
Net advantage
$27,626
How to use this output
Start with the main result at the top. Then review the key numbers, look at how the chart changes over time, and compare the Base, Optimistic, and Conservative scenarios before making a decision.
Saved scenarios
Save multiple scenarios to compare optimistic, conservative, and custom planning paths later.
What this tool does
- Models your current plan in plain English.
- Highlights the most decision-useful outputs instead of overwhelming you with raw math.
- Shows base, optimistic, and conservative views to make tradeoffs clearer.
Example scenario
Roth conversions often become most attractive during temporarily low-income years before required distributions begin.
Key assumptions
- Returns are smoothed estimates and do not reflect real-world market volatility.
- All figures are in today's dollars unless the calculator is explicitly modeling inflation adjustments.
- This tool is intended for planning, education, and comparison rather than certainty.
How the math works
Open to review the formulas and planning logic behind this tool.
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How the math works
Open to review the formulas and planning logic behind this tool.
- 1.WealthyNest uses reusable finance formulas for compounding, withdrawal targets, and cash-flow projections.
- 2.Each tool pairs those formulas with calculator-specific assumptions and a concise summary.
Common mistakes
- Using unrealistic return assumptions.
- Ignoring taxes or healthcare when setting a spending target.
- Treating the output as fixed instead of revisiting it regularly.
Best next steps
Once you have a base result, open one related calculator and one guide so you can test the same decision from another angle before acting on it.
FAQ
Are these outputs guarantees?
No. They are planning estimates based on your assumptions and should be updated as markets, taxes, and spending change.
Do these calculators replace professional advice?
No. They are a strong planning starting point, but tax, legal, and investment decisions should be reviewed with a qualified professional when appropriate.
How often should I revisit my inputs?
A good rule is to revisit assumptions after major income, spending, family, tax, or market changes and at least a few times per year.
Why do the optimistic and conservative scenarios matter?
They help you see how sensitive the result is to assumptions instead of anchoring on one exact output.
Should I include inflation separately?
Yes when the calculator allows it. Separating inflation from returns usually makes the planning logic easier to understand.
What if my real life differs from the model?
That is normal. Use the output as a planning range and update the scenario as new information arrives.
Which metric should I pay attention to first?
Start with the headline summary and the first two or three result cards. Those usually hold the most decision-useful information.
Can I share these results with someone else?
Yes. Major calculators support shareable URL state so you can copy the scenario link and send it directly.
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