AP can perform the entire authorization function or selected portions of the process in cooperation with your host system. And, because the Visa DPS authorization system is flexible, you may customize support to meet your specific business requirements.
If desired, you can request voluntary Federal tax withholding from your monthly Social Security benefits. You may find doing this easier than paying quarterly estimated tax payments. See http://www.socialsecurity.gov/planners/taxwithold.htm.
Because 401(k) contributions are subject to Social Security tax, they are included in Social Security wages on Form W-2. The form shows your annual wages earned and taxes withheld for the year; you use it to file your tax return with the IRS and applicable state and local agencies.pecifically, if Social Security tax applies, so does Medicare tax. Your 401(k) contributions are subject to Medicare tax of 1.45 percent, as of 2012.