Benefit Notch

A benefit notch is a sharp, sudden decrease in the total value of government benefits at a specific income level. Unlike a smooth phase-out where benefits decline gradually, a notch causes a cliff: earn one dollar more and lose hundreds in assistance. The result is a powerful work disincentive at that exact threshold, making it rational to decline a raise or refuse overtime.

How a notch creates a work trap

Imagine a household earning USD 1,950 per month, just below a food-assistance threshold. They receive USD 300 in monthly food vouchers. If they earn an extra USD 60 (say, picking up one extra shift), their gross income becomes USD 2,010—now above the cutoff. Result: they lose the entire USD 300 benefit, netting minus USD 240 on that extra USD 60 earned. Their effective marginal tax rate at that threshold is not 25% or 50%, but negative infinity—they are worse off working more.

This is not a theoretical edge case. Notches exist in real welfare systems and affect real behaviour. A single mother might decline overtime hours if she knows crossing an income threshold will lose her childcare subsidy. A disabled worker on unemployment insurance or disability may turn down gig work that would earn more in gross terms but less in net, after benefits are yanked.

The notch is also sometimes called a “welfare cliff” or “welfare trap,” though welfare trap can refer more broadly to any system where phase-out rates are so steep that working barely pays.

Why notches happen

Notches arise from eligibility rules written as hard cutoffs. The government decides: “If your monthly income is below USD 2,000, you qualify for the benefit. If it is USD 2,000 or above, you do not.” That binary rule is administratively simple—no need to calculate a phase-out curve—but it creates a cliff.

Sometimes notches are accidental, the byproduct of stacking multiple benefits, each with its own cutoff. A household might phase out of one programme at USD 1,800 and another at USD 2,200, and if the phase-out rates differ, the combined effect creates a notch or, worse, multiple notches at different income levels.

Other notches are deliberate, the result of political compromise. A legislature might agree to expand a benefit but insist it must be “budget neutral”—i.e., extend it to more people without raising total spend. The easiest way to do that is to lower the income threshold or tighten the phase-out, which often creates a sharper cutoff.

Notches versus gradual phase-outs

The alternative to a notch is a gradual phase-out: benefits decline by a fixed percentage for every dollar earned above a threshold. For instance, a household might lose USD 0.30 in benefits for every dollar earned above USD 1,800. At USD 1,800, they receive the full USD 300. At USD 1,900, they receive USD 270. At USD 2,000, USD 240, and so on.

A phase-out is not perfect—a 30% phase-out rate is still a marginal tax of 30%, on top of payroll and income tax, making low-income work less rewarding than it could be. But it does not create the perverse incentive to earn less. A household can always increase gross income and improve net income, even if the return is reduced.

The problem with phase-outs is that they extend eligibility higher up the income scale, making benefits more expensive. A gradual phase-out to USD 3,000 serves more households than a cliff at USD 2,000, so it costs more money. That is why notches persist: they are cheaper. Policy-makers face a trade-off between administrative simplicity and fairness, and budget constraints often win.

Measuring the cost of notches

The economic damage from notches includes:

Foregone work. A notch causes some households to reduce hours or refuse opportunities to earn, reducing total output and tax revenue.

Misallocation. A parent might stay on benefits rather than take a better job, accepting lower income to keep the benefit. This is not only worse for the individual but reduces overall labour-market efficiency.

Administrative burden on recipients. Families must carefully track income to avoid crossing a threshold accidentally, and they may seek advice or legal help to manage the notch, adding to their costs.

Equity concerns. Two households with the same income may receive very different benefits depending on whether they are above or below a threshold, which many regard as unfair.

Some research suggests notches reduce overall work effort at low income levels and trap households in poverty longer than smooth phase-outs would. The magnitude is debated, but the direction is clear.

Fixing notches: design improvements

Several approaches can reduce or eliminate notches:

Gradual phase-outs. Most straightforward; benefits decline by a set percentage per dollar above the threshold.

Phase-outs with a “taper” sensitive to earning. For example, for every USD 1 earned above the threshold, reduce the benefit by USD 0.25 (not USD 1.00). This softens the cliff.

Combining benefits into a single programme. If childcare, food, and housing are all in one system with a single, gradual phase-out, notches from overlapping cutoffs disappear.

In-work credits. Some countries use refundable tax credits that top up low incomes, which can be designed without notches and can offset payroll tax, making low-wage work more attractive.

Negative income tax or basic income. A universal income support with a single, simple phase-out avoids multi-programme notches entirely.

The common thread is replacing hard cutoffs with smooth, predictable benefit reduction as income rises.

Political obstacles to reform

Despite the economic case for eliminating notches, they persist. The obstacles are real:

Cost. Smoothing a notch usually means either raising the phase-out start point (allowing higher-income people to claim) or lowering the phase-out rate, both of which cost money. Legislatures balking at welfare spending prefer to keep the notch.

Visibility. A notch is a clear, comprehensible rule: “you qualify, you don’t.” A phase-out formula is harder to explain and sounds more like social engineering to some voters.

Labelling. Expanding benefits to higher incomes sounds like “helping rich people on welfare,” which triggers political backlash, even if those people are still quite poor in absolute terms.

Entanglement with other policies. Notches are often baked into tax code (e.g., dependent exemptions that phase out at high incomes) and changing them requires legislative effort across multiple committees.

Reform has happened piecemeal. The U.S. expanded the Earned Income Tax Credit, which has a phase-in range (credits increase with earnings) and a gradual phase-out, avoiding a notch. Some states have reformed childcare subsidy cliffs. But notches remain embedded in many programmes, especially means-tested benefits for low-income households.

See also