Key Takeaways
- If a federal tax deadline falls on a weekend or legal holiday, the due date is automatically extended to the next business day. This can provide a small buffer for business owners to submit their taxes on time.
- C corporations, S corporations, partnerships, and sole proprietorships all have specific federal income tax return due dates. For instance, in 2026, sole proprietors and C corporations operating on a calendar year must file by April 15, while S corporations and partnerships have a March 116 deadline.
- C corporations are generally required to make estimated tax payments if they expect to owe $500 or more when their return is filed. The deadlines are spaced throughout the year and depend on the corporation’s fiscal calendar. Meanwhile, S corporations, partnerships, and sole proprietors may need to make estimated tax payments if they expect to owe $1,000 or…
