Do self-employment taxes need to be paid quarterly or yearly?

Self-employment tax is paid by making quarterly estimated tax payments which include both income tax and social security tax.

I am self-employed. How do I report my income and how do I pay Medicare and social security taxes?

Your self-employment income is reported on Form 1040, Schedule C (PDF), Profit or Loss from Business, or on Form 1040, Schedule C-EZ (PDF), Net Profit from Business.

Your Medicare and social security taxes are reported on Form 1040, Schedule SE (PDF), Self-Employment Tax.

As a self-employed person, you pay your Medicare and social security taxes the same way you pay your income taxes. If you expect to owe less than $1,000 in total taxes, you can pay them when you file your income tax return. If you expect to owe $1,000 or more in total taxes, you will need to make estimated tax payments. These payments are made quarterly using Form 1040-ES (PDF), Estimated Tax for Individuals. You will need to figure these taxes at the beginning of the year. To learn about figuring and making estimated tax payments, please refer to Publication 505, Tax Withholding and Estimated Tax.

I just started a small business and want to know if I have to file my income taxes quarterly or at the end of the year?

The Federal Income Tax return is filed annually. As a self-employed individual, if after deducting withholding and credits you expect to owe $1,000.00 at the end of the year, you should make estimated tax payments on a quarterly basis. Form 1040-ES (PDF), Estimated Tax for Individuals, will assist you in determining if estimated tax payments are due and how they are paid.

When you file the income tax return at the end of the year, you include the income from the business on the return. The forms to be filed are Form 1040 (PDF), U.S. Individual Income Tax Return, Form 1040, Schedule C (PDF), Profit or Loss from Business Form 1040, Schedule SE (PDF), Self-Employment Tax. If estimated tax payments where made during the year, they will be claimed on the individual income tax return as payments. See Form 1040, Line 57.