Interactive Estimator

Roth vs Traditional: State-Tax Edition (2026)

Every generic Roth-vs-Traditional calculator ignores state tax — yet for a high-earner in California retiring in Texas, the state layer can flip the answer. This tool folds in verified 2026 state rates for both your current and retirement state.

Compare the two accounts

The retirement & tax cluster

Educational estimate, not tax advice. Both accounts receive the same annual contribution and grow at the same rate; the comparison isolates the state (and federal) tax treatment. Traditional withdrawals are taxed at your retirement state and federal rates; Roth qualified withdrawals are assumed tax-free at the state level (most states honor this; a few tax part of conversions/distributions). Graduated states use their TOP marginal rate as an upper-bound approximation. Verify with a CPA or enrolled agent. Source: Tax Foundation Facts & Figures 2026 (state rates).

Data Sources & Fact-Checking Methodology

✓ Audited for 2026 Tax Year
  • Standard formulas Amortization, compound interest, and retirement projection equations per finance practice.
  • Public reference rates Savings/investment assumptions stated as planning estimates; no live market rates.
  • Internal editorial Calculators reviewed by the AllMoneyCalc editorial team before publication.
🛡️ Editorial Audit & Fact-Checking Standards

All calculations are independently vetted by credentialed practitioners (IRS Enrolled Agent & CFA) against statutory primary sources: 26 U.S. Code § 1(j) (Tax Cuts and Jobs Act rates), IRS Rev. Proc. 2025-32, 29 CFR Part 541 (FLSA labor rules), and CFPB Regulation Z. Models undergo continuous automated verification against synthetic test cases.

Last comprehensive audit: October 2026 · Scheduled re-audit: Monthly · Open Data JSON (CC BY 4.0)
📚 Academic & Media Citation (APA 7th Edition)
AllMoneyCalc Research Board. (2026). Federal Income Tax, Payroll & Personal Finance Calculation Engine (2026 ed.). AllMoneyCalc. https://allmoneycalc.com

Methodology and citations are maintained by the AllMoneyCalc editorial board. Educational tools only; verify specific personal filing situations with a qualified tax professional.

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