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Jun 16, 2026
Introducing PolicyBench: how accurately can AI compute taxes and benefits?
We tested 13 frontier language models on 100 representative US households, with no tools, scored against PolicyEngine. GPT-5.5 leads, getting 80.3% exactly right.
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May 19, 2026
South Carolina 2026 tax changes calculator
Estimate the household and statewide impact of South Carolina H.4216 (Act 110), which consolidates income tax brackets, replaces federal deductions with the state-specific SCIAD, and caps the nonrefundable state EITC at $200
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May 14, 2026
Missouri income tax elimination calculator
Explore paths to eliminating Missouri's individual income tax under HJR 173 and 174, modeling household and state revenue impacts across four reform approaches
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May 6, 2026
Coverage Compass
Model how life events — moving, income changes, pregnancy — affect a household's healthcare coverage and out-of-pocket costs across Medicaid, CHIP, and the ACA marketplace
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May 4, 2026
West Virginia SB 392 income tax cut calculator
Estimate the household and statewide impact of West Virginia Senate Bill 392, which reduces personal income tax rates by approximately 5% starting in 2026
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Track legislative activity
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