An Advanced Premium Tax Credit, APTC, is an assistance payment to your health care coverage provided by the government based on your income and household status. It is often referred to as a “Subsidy”. The amount of your APTC, will depend on your income and the size of your family. If you qualify for an APTC, you will have the option to enroll in health insurance coverage through a government-sponsored Health Insurance Marketplace. If you are married and you receive an APTC, you will be required to file a joint tax return with your spouse. You cannot be married and receive an APTC and file taxes separately from your spouse. If married, the ACA requires that you file taxes together in order to receive a subsidy.