Basis modeling

Roth Conversion Basis and Pro-Rata Rule

Learn how after-tax basis, pro-rata assumptions, and Form 8606 concepts connect to the calculator's taxable conversion estimate.

Basis topic

After-Tax Basis and Roth Conversion Calculator

Basis can reduce taxable conversion amounts when tracked correctly and combined with the calculator's pro-rata assumptions.

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Basis topic

Pro-Rata Rule and Roth Conversion Calculator

The pro-rata rule can allocate conversion treatment across pre-tax and after-tax IRA money based on account balances.

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Basis topic

Form 8606 and Roth Conversion Calculator

Form 8606 is often referenced when basis or nondeductible IRA contributions need to be documented for tax reporting.

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This Roth Conversion Calculator is for educational and illustrative purposes only. It does NOT constitute tax, financial, legal, or investment advice. The calculation results are based on the information you provide and the latest IRS tax rules, which are subject to change. We do not guarantee the accuracy of the results. Please consult a licensed Certified Public Accountant (CPA), financial advisor, or tax professional before making any financial decisions.