Retirement Savings Accounts
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Personal Finance Toolkit
Build a plan that works — from first contribution to final withdrawal.
IRAs, 401(k)s, Roth, 403(b)s, SEPs — a comprehensive guide to retirement account types, tax treatments, and contribution limits.
ArticleProject your retirement nest egg growth
CalculatorCalculate your path to financial independence
CalculatorInteractive chart: pick a time range and see how $10K would have grown across stocks, bonds, REITs, and more since 1970.
InteractiveImmersive particle visualization showing the exponential power of compound interest — watch dollars spawn new dollars in real time.
Interactive500 simulated retirement futures — adjust savings, spending, and allocation to see how your odds shift in real time.
ArticleBeyond the 25x rule — a nuanced look at retirement savings targets based on your spending, income sources, and retirement timeline.
ArticleHow to calculate your FIRE number, the math behind early retirement, and realistic assumptions for your financial independence plan.
Reference401(k), IRA, HSA, catch-up limits for 2025
ReferenceTraditional vs Roth vs 401(k) vs 403(b) vs SEP