Roth IRA vs. Traditional IRA Calculator
Compare pre-tax upfront deductions vs. 100% tax-free retirement compounding to find which IRA delivers more spendable wealth.
Compare pre-tax upfront deductions vs. 100% tax-free retirement compounding to find which IRA delivers more spendable wealth.
Compare pre-tax upfront deductions vs. 100% tax-free retirement compounding to find which IRA delivers more spendable wealth. Calculate exact, penny-accurate projections compliant with 2026 IRS • St. Louis FED (FRED) standards using Calconova's deterministic IEEE-754 (Decimal.js) calculation engine with instant breakdowns.
Because your current tax rate (24%) is significantly higher than your expected retirement rate (15%), taking the upfront tax deduction and reinvesting it delivers superior total spendable wealth.
Roth FV = C × [((1+r)ⁿ - 1) / r] × (1+r) | Trad Spendable = [Trad FV × (1 - RetTax)] + ReinvestedSavingsTax arbitrage between accumulation years (marginal tax rate t₁) and distribution years (effective tax rate t₂) determines the optimal retirement vehicle. Exact IEEE-754 decimal compounding models full lifetime wealth accumulation without floating-point drift.
Pre-calculated benchmark tables across different budgets, terms, and rate models.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, underwriting, or legal advice. Actual interest rates, closing costs, lender fees, and statutory criteria may vary. Calconova explicitly disclaims all liability for any financial decisions or actions taken based upon these calculations. Users are strongly advised to consult a certified financial planner, CPA, or licensed lending officer prior to executing financial commitments.
The fundamental distinction lies in when you receive the tax advantage. A Traditional IRA provides an immediate tax deduction when you contribute, but 100% of your withdrawals in retirement (both principal and earnings) are taxed at ordinary income rates. A Roth IRA offers no upfront deduction, but all growth compounds completely tax-free and 100% of qualified withdrawals in retirement are permanently tax-free.
A Roth IRA is mathematically superior if you expect your marginal tax rate in retirement to be higher than (or equal to) your tax rate today. Furthermore, Roth IRAs feature no Required Minimum Distributions (RMDs) during the owner's lifetime, allowing your money to grow tax-free indefinitely and pass tax-free to beneficiaries.
For 2026, the statutory IRS IRA contribution limit is $7,000 for individuals under age 50, with an additional $1,000 catch-up contribution ($8,000 total) for workers aged 50 and older.
If you spend the annual tax deduction rather than investing it, the Roth IRA wins by a massive margin in virtually every scenario. The mathematical parity of a Traditional IRA relies on diligently investing the annual tax refund to compound alongside your IRA balance.
Project retirement savings with employer match, compound returns, and IRS annual contribution limits.
Calculate 2026 IRS tax brackets, standard deduction, Social Security, Medicare, and take-home pay.
Calculate combined state and municipal sales tax for all 50 US states.