The Working Families Tax Credit (WFTC) is an annual cash rebate of up to $1,330 for Washington state households with low and moderate incomes. It is also available to people who file their taxes using an Individual Tax Identification Number (ITIN), which includes undocumented immigrants. State Earned Income Tax Credits (EITCs), like the WFTC, are a critical, proven tool to help families meet their basic needs and have long-lasting health, education, and employment benefits.