We develop a model of how taxpayers update beliefs over their tax rates when they encounter a non-salient tax liability change. We test the model's hypotheses using the loss of the Child Tax Credit when a child turns 17. Because this tax liability change is lump-sum and predictable, there should...

Economic theory assumes that taxpayers use their true marginal tax rate (MTR) to guide their economic decisions. However, complexity of the personal income tax system implies that taxpayers may incorrectly perceive true marginal prices and incentives. We first develop an updating model that...

We develop an empirical test for whether households understand or misperceive their tax liability changes. Our identifying variation comes from the loss of the Child Tax Credit when a child turns 17. Using this age discontinuity, we find that despite this tax liability increase being lump-sum...

We develop a model of how taxpayers update beliefs over their tax rates when they encounter a non-salient tax liability change. We test the model's hypotheses using the loss of the Child Tax Credit when a child turns 17. Because this tax liability change is lump-sum and predictable, there should...

We develop an empirical test for whether households understand or misperceive their tax liability changes. Our identifying variation comes from the loss of the Child Tax Credit when a child turns 17. Using this age discontinuity, we find that despite this tax liability increase being lump-sum...