Episode
Enrolled Agent Exam [Part 2] 78, Estimated Tax Payments — Corporations
- Podcast
- Finance Exam Prep
- Published
- Jul 14, 2026
- Duration seconds
- 168
- Processing state
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- https://open-exam-prep.com/
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Summary
This podcast is made by Ran Chen, who holds an EA license, Insurance and Securities licenses (Series 6, 63, 65), and the CFP® designation. He is passionate about opening access to high-quality exam preparation resources and helping learners prepare more effectively for professional certification exams. In this episode you will learn: - C corporations must make estimated tax payments if their expected annual tax is $500 or more. - The four quarterly payment due dates for a calendar-year corporation are April 15, June 15, September 15, and December 15. - Safe harbors to avoid the underpayment penalty include paying 100% of the current year's tax or 100% of the prior year's tax. - A 'large corporation,' with $1M or more in taxable income in any of the three prior years, can only use the prior-year safe harbor for its first installment. - The underpayment penalty for corporations is governed by IRC Section 6655 and payments are figured using Form 1120-W. For more free exam prep tools, practice questions, and AI-powered explanations, visit https://open-exam-prep.com/ or YouTube Channel: https://www.youtube.com/@Open-exam-prep