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Disclaimer

Last updated September 30, 2026.

Not financial, tax or legal advice

Everything on Sumly, including every calculator, result, chart and guide, is general educational information. None of it is personalized financial, investment, tax or legal advice, and none of it is a recommendation to buy, sell, borrow or take any other action. Sumly isn't a registered investment adviser, broker-dealer, tax professional, lender or law firm.

Results are illustrations, not predictions

Calculator results are hypothetical illustrations based entirely on the assumptions you enter, such as rates of return, inflation, interest rates and tax rates. Real investments don't earn steady returns. Markets fall, interest rates change, and tax laws change. Past performance doesn't guarantee future results, and actual outcomes can be materially worse than any illustration.

Simplifications

To stay understandable, our calculators simplify. For example, the Buy, Borrow, Die calculator applies a single tax rate to amounts sold and models loan interest simply. These simplifications are documented on our methodology page. Your real situation will involve details the calculators don't capture.

Borrowing against investments is risky

Securities-backed loans and similar strategies can lead to maintenance calls, forced sales of your investments at bad times, unexpected taxes and losses greater than you anticipated. Read our guide to securities-backed line of credit risks before considering one.

Tax and legal information changes

Tax brackets, exemptions and rules referenced in our guides are accurate to the best of our knowledge as of the date shown on each page, and they change over time. Always confirm current figures with the IRS or a tax professional.

Consult a professional

Before making significant financial decisions, consult a qualified professional, such as a fee-only certified financial planner, a CPA or enrolled agent, or an estate planning attorney, who can review your full situation.

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