PolicyEngine/policyengine-us

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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.

Stars: 162
Forks: 212
Open beginner issues: 17
Indexed issues: 747
Avg merge: 3d 3h
Merged PRs (30d): 97

Dominant language: Python
License: AGPL-3.0
Last GitHub push: Sep 15, 2026
Latest indexed: Sep 16, 2026
Contributing guide: Contributing guide
Code of conduct: No code of conduct
Beginner labels: good first issue

Open All

747 open issues indexed

Add documentation defining unit vs integration tests Open

code-health documentation

PolicyEngine/policyengine-us#430 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add SNAP integration test for elderly/disabled household from SNAP website Open

snap testing

PolicyEngine/policyengine-us#431 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
100% code coverage Open

testing

PolicyEngine/policyengine-us#445 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Generate integration tests from Atlanta Fed Welfare Cliffs dashboard Open

testing

PolicyEngine/policyengine-us#454 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
List mechanisms agencies use to determine income given volatility Open

PolicyEngine/policyengine-us#460 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Reimplement SNAP standard deduction as 8.31% of the net income limit up to 6 people Open

snap

PolicyEngine/policyengine-us#483 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Consistent yaml formatter Open

code-health

PolicyEngine/policyengine-us#488 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Compare SNAP take-up rates with NBER estimates Open

snap

PolicyEngine/policyengine-us#500 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Remove periods from all parameter and variable labels and descriptions Open

documentation parameters variables

PolicyEngine/policyengine-us#517 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add WIC category for multiples Open

usda/wic

PolicyEngine/policyengine-us#524 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Summer Food Service Program Open

PolicyEngine/policyengine-us#525 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Food Distribution Program on Indian Reservations Open

PolicyEngine/policyengine-us#526 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
WIC Farmers' Market Nutrition Program Open

usda/wic

PolicyEngine/policyengine-us#527 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Run IRS test packages for electronic filers Open

PolicyEngine/policyengine-us#531 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
HUD child support payment exclusion parameter for public housing Open

parameters

PolicyEngine/policyengine-us#536 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Gift Tax Open

tax

PolicyEngine/policyengine-us#538 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Verify if guaranteed income / cash assistance counts as income for CVRP Open

policy

PolicyEngine/policyengine-us#550 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Section 8 family share parameter Open

PolicyEngine/policyengine-us#592 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Subfamily entity Open

PolicyEngine/policyengine-us#595 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Replace school meal income source parameter with SNAP Open

PolicyEngine/policyengine-us#597 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Replace `np.any` calls with `aggr`/`add` Open

code-health

PolicyEngine/policyengine-us#598 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
State employer payroll taxes Open

Epic

PolicyEngine/policyengine-us#622 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Cite primary sources for BBCE Open

PolicyEngine/policyengine-us#630 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Remove all variables that don't contribute to net income Open

code-health variables

PolicyEngine/policyengine-us#658 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Verify if HUD adjusted income can be negative Open

PolicyEngine/policyengine-us#660 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Separate Additional Medicare Tax parameters by payroll / self-employment Open

parameters tax

PolicyEngine/policyengine-us#664 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add Railroad Retirement Tax Act income and rules Open

PolicyEngine/policyengine-us#667 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Add church employee income Open

PolicyEngine/policyengine-us#668 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
MTRs for filer with employment and self-employment income differ from taxcalc Open

tax

PolicyEngine/policyengine-us#670 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Change school year to 179 days Open

PolicyEngine/policyengine-us#672 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Vary school days by state Open

PolicyEngine/policyengine-us#673 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Full TANF unit test coverage Open

hhs/tanf testing

PolicyEngine/policyengine-us#676 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Adjust school meal subsidy logic for 2020 pandemic policies Open

school-meal-subsidy

PolicyEngine/policyengine-us#679 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
The Emergency Food Assistance Program (TEFAP) Open

benefits

PolicyEngine/policyengine-us#681 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Automatically add `hide-input` cell tags to Jupyterbook Open

PolicyEngine/policyengine-us#717 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Rename `*_cost` variables to `*_expense` Open

code-health

PolicyEngine/policyengine-us#735 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
SNAP emergency allotment dates from snapscreener.com Open

snap

PolicyEngine/policyengine-us#738 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Round SNAP after multiplying by expected contribution and monthlyizing Open

enhancement snap

PolicyEngine/policyengine-us#750 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Consistently place metadata at the top or bottom of parameters Open

code-health parameters

PolicyEngine/policyengine-us#759 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Alphabetize state code enum Open

code-health

PolicyEngine/policyengine-us#764 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Investigate entity level of `tax_unit_dependent_elsewhere` Open

question tax

PolicyEngine/policyengine-us#773 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Massachusetts Open

Epic sponsor:cgo states/ma

PolicyEngine/policyengine-us#777 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
MA sales tax logic Open

sponsor:cgo state-sales-tax states/ma

PolicyEngine/policyengine-us#781 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 16, 2026
Low Income Household Water Assistance Program (LIHWAP) Open

benefits

PolicyEngine/policyengine-us#789 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Test for performance degradation Open

performance testing

PolicyEngine/policyengine-us#840 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Investigate whether SSI children are within-tax-unit or within-family Open

question ssi

PolicyEngine/policyengine-us#844 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Deduct adoption expenses from MA income tax Open

enhancement state-income-tax states/ma

PolicyEngine/policyengine-us#879 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Tie CCDF to pre-subsidy childcare expenses Open

benefits enhancement

PolicyEngine/policyengine-us#884 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Specify `__version__` in `__init__.py` Open

code-health

PolicyEngine/policyengine-us#893 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026
Impute spouse's tax information when filing separately Open

data enhancement

PolicyEngine/policyengine-us#898 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 16, 2026

PolicyEngine/policyengine-us

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