Dear Liz: A friend of mine received a 2016 tax refund of over $9,000 even though this person did not pay nearly that amount in taxes over the course of the year. My friend has a fairly low-paying job with no benefits, is a single parent of two young children and receives no support from the children’s other parent. Given this scenario, is it possible to get a tax refund in an amount greater than what you paid in taxes?

Answer: Absolutely, and these refundable credits keep millions of working Americans out of poverty each year.

Refundable credits are tax breaks that don’t just offset taxes you owe but also can give you additional money back. Most of your friend’s refund probably came from the earned income tax credit, which was initially created in the 1970s to help low-income workers offset Social Security taxes and rising food costs due to inflation.

The credit was expanded during President Reagan’s administration as a way to make work more attractive than welfare. Each administration since has increased the credit, which has broad bipartisan support.

The maximum credit in 2016 was $506 for a childless worker and $6,269 for earners with three or more children. Your friend probably also received child tax credits of up to $1,000 per child. This credit, meant to offset the costs of raising children, is also at least partially refundable when people work and earn more than $3,000.