Taxpayers can pay using American Express, Discover, MasterCard or Visa. Payments can typically be made via phone, the Internet or through tax preparation software. The IRS website page  Pay taxes by credit or debit card  provides details and current prices.
Taxable Dependents. A taxable dependent is a person who is eligible to be claimed as a dependent, but still earns an income. Claiming a dependent earns a taxpayer a $3,650 tax exemption, according to the IRS.
Ed note: In its simplest form, a dependent is a person who relies on another. In the world of the IRS and taxes, a dependent is a more specific and complicated thing. You are allowed to claim one exemption for each person you can claim as a dependent. This is important, since exemptions reduce your taxable income.