Earned Income Tax Credit
What is Earned Income Tax Credit?
The Earned Income Tax Credit is a refundable tax credit for low- and moderate-income workers that rises with earnings, then plateaus, then phases out.
The credit is calculated from wage or self-employment income, so a household with no earnings receives nothing; the design rewards work rather than replacing it. In the phase-in range each extra dollar earned raises the credit, which acts like a wage subsidy and pulls people into the labor force. The credit then holds flat over a plateau and falls as income rises further, so households in the phase-out range face a higher effective marginal tax rate. Because it is refundable, a family whose credit exceeds its income tax liability receives the difference as a payment. It is not a deduction: a deduction shrinks taxable income, while this credit reduces tax owed dollar for dollar and can go below zero.
Earned Income Tax Credit: a worked example
Use an illustrative schedule: the credit equals 40% of earnings up to $10,000, holds at the $4,000 maximum until earnings reach $20,000, then falls by 20 cents per extra dollar. A parent earning $8,000 gets 0.40 × $8,000 = $3,200. Earning $10,000 instead gives the full $4,000, so the last $2,000 of wages carried an extra $800 of credit with it. A parent earning $25,000 loses 0.20 × ($25,000 − $20,000) = $1,000, leaving a $3,000 credit. The credit hits zero at $40,000 of earnings.
The mistake students make with earned income tax credit
The usual error is thinking the credit shrinks as soon as you earn more. Over the phase-in range extra earnings increase the credit, so the effective wage rises; only past the plateau does more income reduce it. Students also forget the credit requires earnings. A household with zero wage income gets zero from this credit, which is what separates it from an unconditional cash transfer.
Earned Income Tax Credit questions
Is the Earned Income Tax Credit refundable?
Yes, it is refundable, so a household receives the unused portion as a payment even if it owes no income tax. A nonrefundable credit can only take a tax bill down to zero. Refundability is what lets the credit deliver income rather than only cancel tax.
Why do economists say the EITC encourages work?
In the phase-in range the credit rises with each extra dollar earned, so it works like a wage subsidy and raises the reward for taking a job. Evidence points to higher labor force participation among single parents, the group targeted most heavily. In the phase-out range the incentive runs the other way, though the measured effect on hours worked is smaller.
How is a tax credit different from a tax deduction?
A credit subtracts directly from tax owed, while a deduction subtracts from the income that is taxed. A $1,000 credit cuts a bill by $1,000 for anyone; a $1,000 deduction saves $1,000 times your marginal rate, so it is worth more to high earners. Only a refundable credit can pay out below zero.
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