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C Corporation Tax Returns (Form 1120)
Form 1120 and state corporate returns, the 21% federal rate, estimated payments, and the foreign-ownership and foreign-subsidiary forms that often come with them.
What is included
- Federal Form 1120 with balance sheet and book-to-tax reconciliation
- State corporate income and franchise tax returns
- Quarterly estimated tax payments
- Forms 5472 (25% foreign owner) and 5471 (foreign subsidiaries) where required
- R&D credit and Section 174 research cost treatment review
Deadlines
A calendar-year C corporation files Form 1120 by April 15; an extension (Form 7004) gives six more months to file, not to pay.
Common questions
Is a C corporation right for my business?
It suits companies raising investment or reinvesting profits. Many small owner-operated businesses do better as an S corporation or LLC; see choosing an entity.
Tell us your situation. We will tell you the fee.
A few short questions, a written quote within one business day, and a free 15-minute consultation if you would rather talk it through first.