10/22/2026
One date for 1099 and Schedule C filers: January 15, 2027.
That is the due date for the fourth and last 2026 estimated tax payment. It covers September through December.
The IRS says you generally need to pay estimated tax if you expect to owe $1,000 or more after withholding and credits. That can include consultants, LLC owners, and anyone with 1099 income on top of a W-2 job, since tax usually is not withheld from that extra income.
Source: IRS Publication 505.
Do you put estimated tax dates in your phone, or does each one sneak up on you?
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