You usually must pay self–employment tax if you had net earnings
from self–employment of $400 or more. Generally, net earnings from self–employment
represent 92.35% of your net profit. Net profit is calculated by subtracting
ordinary and necessary trade or business expenses from your gross self-employment
income. You are self–employed for this purpose if you are a sole proprietor,
an independent contractor, a member of a partnership, or are otherwise in
business for yourself. You can be liable for paying self–employment
tax even if you are currently receiving social security benefits.
If you had a small profit or net loss from your business but want to pay
into the social security system, you may be eligible to use one of the two
optional methods to compute your net earnings from self–employment.
Refer to the Instructions for Schedule SE to see if you qualify to
use an optional method. An optional method may increase your earned income
credit or the child and dependent care credit.
The total self-employment tax rate is 15.3% of your net earnings from self–employment.
This rate is the total of 12.4% for Social Security and 2.9% for Medicare.
The maximum amount of net earnings subject to the social security tax is $87,900
for 2004. All of your net earnings are subject to the Medicare tax. Self–employment
tax is computed on Form 1040, Schedule SE(PDF).
When figuring your adjusted gross income on Form 1040, you can deduct
one–half of your self–employment tax. This deduction is figured
on Schedule SE. The Social Security Administration uses the information from
Schedule SE to figure your benefits under the social security program.
If you are an employee of a church or qualified church–controlled
organization that elected exemption from social security and Medicare taxes,
and you are not yourself exempt from self-employment tax, you must pay self–employment
tax if you are paid $108.28 or more in a year from the church or qualified
church-controlled organization. If you are required to pay self–employment
tax, you must file Form 1040 and attach Schedule SE. For more information
on church related income and self–employment taxes, refer to Publication 517, Social Security and Other Information for Members of the Clergy
and Religious Workers.
More information on self–employment tax can be found in Publication