The premium tax credit (PTC) is a refundable tax credit in the United States, payable by the Internal Revenue Service (IRS) to eligible households that have obtained healthcare insurance through a healthcare exchange in the tax year. It is part of the Affordable Care Act tax provisions and is meant to extend health insurance coverage to lower and middle-income Americans. The eligibility criteria for the premium tax credit is determined by section 1401 of the Affordable Care Act, and the calculation of the PTC can be complex, subject to specific rules and regulations set by the IRS. The amount of the tax credit depends on the income and the cost of Marketplace health plans in the area. It can be paid in advance directly to a healthcare insurance company to offset the cost of monthly health insurance premiums. Individuals and families are encouraged to consult the IRS guidelines or seek assistance from a tax professional for accurate calculations and guidance related to their specific situation.