Free tools for Treasury income and state tax
Everything runs in your browser. Nothing you type is sent anywhere.
- 1099-DIV state subtraction helper
Enter each fund's ordinary dividends and U.S. government obligations percentage; see how much your state exempts, including the CA/CT/NY 50% rule. - T-bill ladder planner
Split an amount across 4- to 52-week bills; see upcoming auction and maturity dates, after-tax dollars per rung and the break-even vs a money fund. - Money fund yields vs T-bill auction rates
Daily money fund yields against every bill auction, before or after your state's income tax, with CSV download. - Who's rolling T-bills tracker
Berkshire Hathaway's quarterly Treasury bill holdings vs the Fed and all bills outstanding, plus Big Tech's Treasury holdings, from SEC filings. - After-tax yield calculator
Compare T-bills, a Treasury money fund, savings/CDs and muni funds in dollars for your state and bracket.
Not financial advice. Rankings are mechanical calculations from published yields and issuer tax data. They ignore fees you pay your broker, trading spreads, minimums, liquidity, and your full tax picture. Check the source links before acting.