Roth Conversion Tax Impact Calculator 2026-2030

Estimate the federal and state tax cost of converting traditional IRA funds to Roth for 2026 through 2030, using actual brackets and the pro-rata rule.
IRC 408A(d)(3) - conversion incomeIRC 408(d)(2) - pro-rataForm 8606
← cpavalidated.com

Last verified: October 29, 2026

1

Conversion Scenario

2026 is IRS-published; 2027-2030 are projected.
Used only for 2027-2030 projections.
Form 1040 line 11 without the conversion.
Blank uses the standard deduction.
IRC 63(f); IRC 151(d)(5)(C).
IRC 408A(d)(3).
All IRAs before the conversion (IRC 408(d)(2)).
Form 8606 nondeductible basis.
Flat rate on the taxable part.
2

Tax Impact Analysis

Assumptions & sources
Projected figures are estimates. Where a tax year shows the "Projected - estimate, not IRS-published" badge, inflation-indexed amounts are projected from the latest IRS-published figures using the inflation rate you select and the rounding rule stated in the statute. They are not IRS-published and will differ from the final revenue procedure. Educational estimate only; verify against current primary authority before relying on any figure.
IRC 408A(d)(3); IRC 408(d)(2); IRC 1(j)(2); IRC 63(c), (f); IRC 151(d)(5)(C); Rev. Proc. 2025-32 sec. 4.01 and 4.14; Form 8606 (2025) lines 5-18.
Educational estimate only; not tax advice. See the full disclaimer.
tk.cpa AI Lab
Mission Privacy tk.cpa
Nothing on this page constitutes legal, tax, accounting, or professional advice, and no professional relationship is created by your use of this website. CPA Validated is an educational website for information purposes only. Information should be verified against current primary authority, including the Internal Revenue Code, Treasury regulations, IRS guidance, and applicable state or local law, before being relied upon or acted on. Calculator outputs are estimates only and may be incomplete or inaccurate depending on the facts, assumptions, and inputs used. CPA Inc. and tk.cpa disclaim liability to the fullest extent permitted by law. Full disclaimer: cpavalidated.com/disclaimer.html