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Tax tools
A small, growing set of free single-purpose tools I've built for tax work. Use them yourself, or send someone a direct link.
Journal Entry Lab
Post a journal entry and watch it land on a balance scale: Assets on one pan, Liabilities and Equity on the other, always level. Presets, guided scenarios, T-accounts, and a trial balance, for teaching debits and credits.
Federal Income Tax Estimator
What you will owe for the year: 2025 or 2026 ordinary brackets, standard deduction, long-term capital gains, and the child tax credit.
MACRS Depreciation Calculator
Build a full depreciation schedule with Section 179, 100% bonus, and straight-line, across 200+ assets from IRS Pub 946.
S-Corp vs. Schedule C
Compare sole proprietor vs. S-corp: SE tax, payroll, the Section 199A QBI deduction, and the reasonable-salary sweet spot.
Quarterly Estimated Tax & Safe Harbor
How much to pay each quarter (Form 1040-ES): the safe-harbor test (90% / 100% / 110%), self-employment tax, and a quarterly schedule.
IRC Reader
Read and navigate the Internal Revenue Code in a clean, searchable interface. Opens on irc-reader.vercel.app.
Tax Year Age Calculator
Enter a date of birth and tax year to get the federal tax age, the interview questions to ask, and common age-related federal tax considerations.
The Dependent Trail
Walk Steps 1 through 5 of the Form 1040 dependents flowchart one question at a time. See if a person is your dependent, and whether they bring the child tax credit or the credit for other dependents.
Pomodoro Timer
A focus timer for working in timed sprints with breaks in between. Handy for grinding through a return stack. Opens on y10-pomodoro-timer.vercel.app.
Want your firm running on tech that actually helps?
I'm Yehuda Tenenbaum, EA. I help tax and accounting firms simplify their tech stack, get more out of TaxDome, and automate the busywork, so the work runs the way you want.
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