policyengine-us
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PolicyEngine
The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.
Many analysts are comparing reforms against a baseline that assumes TCJA extension. We should make a reform that does this. The main time-consuming part will be correctly applying inflation adjustments....
We currently only account for pre-TCJA limits [Law](https://www.law.cornell.edu/uscode/text/26/163)
SSI disability status is currently based on SSI receipt. As a result, we will underestimate the impact of reforms that expand SSI eligibility, e.g. by income or assets. We could...
Especially for the Enhanced CPS where some records are from the CPS and some are (partly) from the PUF. We've gotten many questions on how much of the final weight...
For example, the dependent exemption is uprated: https://github.com/PolicyEngine/policyengine-us/blob/ca967aba24271ed471c722ef3684b05e5502c034/policyengine_us/parameters/gov/states/ca/tax/income/exemptions/dependent_amount.yaml#L2-L12 But it doesn't work [in the app](https://policyengine.org/us/policy?focus=gov.states.ca.tax.income.exemptions.dependent_amount): California CPI itself is uprated by the CBO CPI forecast: https://github.com/PolicyEngine/policyengine-us/blob/ca967aba24271ed471c722ef3684b05e5502c034/policyengine_us/parameters/gov/states/ca/cpi.yaml#L2-L10 That works [in the...
https://www.in.gov/dor/files/ib117.pdf#page=4 >Special Rule for First-Year Qualifying Children Beginning in 2023, a taxpayer is permitted an exemption of $3,000 for a child who qualifies for the first time for the extra...
Currently, Maine ties its dependent exemption credit to dependent status as relevant to the CTC (i.e., any dependent): https://legislature.maine.gov/statutes/36/title36sec5219-SS.html In 2026, that will change to children for whom the federal...
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The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.