Who Must Pay Quarterly Taxes?
If you’re self-employed and expect to owe $1000 or more to the IRS when you file your tax return, you’re required to pay estimated taxes on April 15, July 15, September 15 and January 15. Generally, sole proprietors, partners in a partnership, independent contractors, freelancers and consultants must make quarterly payments—or face penalties (See: How do I make Quarterly Estimated Tax Payments: Part II).
