Paycheck Plus: Employment Referral Services consisted of two main features. First, like the Paycheck Plus intervention described elsewhere on this site, it allowed eligible individuals to receive up to $2,000 in income-based tax credits, including the federal EITC and the supplemental credit from the Paycheck Plus program. In the 2017 tax year, a single adult worker would lose eligibility for the federal EITC after his or her earnings reached about $15,000, and the maximum credit was $510.