ALL of your income must go on the same tax return. Expect to pay self-employment tax for Social Security and Medicare, and possible ordinary income tax on the self-employment income. You will need either any version of the CD/download software or Self-Employed if you use online TurboTax.
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1099 employee are commonly referred to as independent contractors, which comes with the tax responsibility of paying both income tax and self-employment tax on net income from self-employment earnings. Income tax is dependent on your prevailing tax rate from all sources of income. Self-employment tax, which is FICA and Medicare for the self employed is taxed at 15.3%,