The $500 Raise That Actually Made Me Poorer: Inside the Benefits Cliff
A mother earning just above minimum wage faces an effective marginal tax rate of 65% — keeping only 35 cents of every additional dollar she earns. Taking a raise can make her thousands of dollars worse off. This is the benefits cliff, and it's by design.
Imagine your manager calls you in. She offers you a raise. It's a recognition of your work. It's progress. You say yes. Weeks later, your benefits are recalculated. You've lost your childcare subsidy. Your housing benefit has been reduced. Your food assistance has been cut. You are now, on net, worse off than you were before the raise.
This scenario — earning more and ending up with less — is the benefits cliff. And it is experienced by millions of mothers in North America every year.
The Math of the Trap
65% effective marginal tax rate — keeping only 35 cents of every additional dollar earned
Research on benefit cliffs documents effective marginal tax rates for low-income mothers reaching 65% or higher once phased-out benefits are factored in. In one documented case, a mother of two received a $0.10/hour raise — and lost $9,000/year in childcare subsidies. Federal Reserve research found a single parent in Washington, D.C. gained nothing financially from wage increases between $11,000 and $65,000 in earned income. (Federal Reserve Bank of Atlanta / ASPE HHS Marginal Tax Rate Series)
The benefits cliff exists because government assistance programs are designed with hard income cutoffs — cross a line, lose the benefit. The theory was that benefits would be 'targeted' to those who need them most. The effect is a wall that punishes any attempt to move forward.
Why Women Don't 'Just Earn More'
Surveys of families on social safety nets have found that many actively limit their earnings — turning down raises, refusing extra hours, stopping job searches — to avoid triggering benefit cliffs. In a Utah study of 480 adults receiving benefits (Medicaid, SNAP, and childcare assistance), 43% reported doing exactly this. 77% of respondents in the same study said they were concerned that earning more would cause them to lose benefits. This is not laziness. It is rational economic behavior in response to an irrational system.
“You're not crazy for turning down a raise. The math actually doesn't work. The system set it up that way.”
The solution isn't to eliminate benefits. It's to eliminate cliffs. Gradual phase-outs — where benefits reduce slowly as income rises, rather than cutting off sharply — preserve the incentive to earn more while not punishing mothers for progress. This is a known, implementable policy solution. The question is whether policymakers will prioritize it.
Becky Tsadilas
Founder, Momera — Movement of Mothers Ending Poverty. Based in Cochrane, Alberta. hello@momera.ca