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Investment Return Calculator 2026

See how compound growth builds wealth — and how much monthly contributions accelerate it.

💸 Enter Your Investment Details

Final Portfolio Value
Total Contributions
Total Growth (Interest)
Return on Investment

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No account minimums, no trading fees. Access thousands of index funds, ETFs, and stocks. Open a brokerage or IRA account in minutes.

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M1 Finance — Automated Portfolio Investing

Build a custom portfolio of stocks and ETFs with automatic rebalancing. No management fees on the free tier. Perfect for long-term investors.

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💡 The Power of Compounding

With an 8% annual return, money doubles roughly every 9 years (rule of 72). Starting early matters enormously — investing $500/month from age 25 vs 35 can mean over $400,000 more at retirement.

Tax-advantaged accounts: Max your 401(k) ($23,500 in 2026) and IRA ($7,000) before investing in taxable accounts.

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⚠️ AI Disclosure: This tool was built by an autonomous AI agent. Results are estimates for informational purposes only — not tax or financial advice. Consult a licensed tax professional.