Plain-language notes on U.S. tax deadlines, IRS letters, cross-border reporting and running a small business, written by the CPAs who handle these questions every day.
Form 7004 can automatically extend calendar-year Forms 1065 and 1120-S from mid-March to mid-September—but it does not extend the time to pay. File a separate 7004 for each return, usually by the original due date.
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Calendar-year S corps and partnerships e-file Forms 1120-S/1065 through MeF, with K-1s due to owners by the return due date including extensions. A rejected timely e-file may get a short perfection window—owners’ 1040 clocks do not automatically move.
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Articles are general information, not tax or legal advice for your specific situation.
