Q3 estimated payments are due September 15. On extension? October 15 is closer than it looks.
Insights
Notes · July 7, 2026
The Q3 estimated tax deadline is September 15, 2026, and missing it costs you 8% annualized on whatever you underpaid. Here is a numbers-forward guide to calculating what you owe, understanding the safe harbor rule, and making both your federal and Michigan state payments on time.
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One useful tax note a month, straight from the partners.
Tax Notes · June 24, 2026
The S corp election is the most oversold move in small-business tax. Here is the honest math on where the savings start, and the three costs the YouTube videos skip.
By Marta Kowalski
Bookkeeping · June 10, 2026
Your accounting software can produce forty reports. You need one page: five numbers, three sentences, and a decision. Here is the template we use.
By Dev Raman
Tax Notes · May 21, 2026
Most IRS letters are math, not menace. A calm walk through the notice types we actually see, what each one wants, and the one mistake that turns small problems into big ones.
By Marta Kowalski
Running the Business · April 30, 2026
Calling someone a contractor does not make them one, and the penalties for guessing wrong arrive with interest. A plain-English tour of the real test.
By Dev Raman