401(k) & Roth IRA Calculator (2026 IRS Limits): Pre-Tax vs. Roth Arbitrage for High-Tax States
Project your retirement nest egg under the 2026 IRS 401(k) contribution limits ($23,500 standard, $31,000 age 50+, $34,750 ages 60–63 SECURE 2.0 super catch-up) and compare Traditional vs. Roth for NY/NJ earners.







