Quarterly Estimated Tax Payments
01.Pay-As-You-Go Tax System
In the US, corporate entities and self-employed individuals must pay taxes quarterly throughout the year, rather than waiting until the end of the year.
02.Filing Deadlines
Quarterly estimated tax payments are due on April 15, June 15, September 15, and January 15. You must calculate and pay your state and federal liabilities.
03.Underpayment Penalties
If you fail to pay sufficient estimated taxes throughout the year, the IRS and state tax boards charge interest and underpayment penalties, even if you pay in full at tax time.