Free tools
Free S Corp tools
Built by the team that files Form 2553 every day. No signup, no email wall — your numbers never leave your browser.
Most popular
S Corp tax savings calculator
What an S Corp election actually saves after payroll tax, the QBI deduction you give up, and the real cost of running one.
Open toolElection deadline calculator
Your exact Form 2553 deadline from your formation date or tax year, days remaining, and your options if it has already passed.
Open toolWhere to fax Form 2553
The IRS fax number and mailing address for your state — including the street address USPS Certified Mail will actually accept.
Open toolAll tools are for informational purposes only and may not be correct for your circumstances. Nothing on these pages is tax, legal, or financial advice — please consult your own CPA, enrolled agent, or tax advisor before acting on anything you see here.