policyengine-uk

UK tax and benefit microsimulation creates standardized situation dictionaries representing households with income, family structure, and region to calculate tax liabilities, National Insurance, council tax, and Universal Credit outcomes. PolicyEngine-UK provides pre-built utilities to construct these scenarios programmatically across England, Scotland, and Wales without rebuilding tax logic.

Yes. PolicyEngine-UK situations conform to technical rules including year-key dictionaries, ITL1 region validation, and nested structures for people, benefit units, and households, enabling consistent reform comparisons across devolved nations and regions with standardized inputs.

PolicyEngine-UK provides situation builders—helper functions to add incomes and create single-person, couple, and family-with-children scenarios. These utilities generate properly formatted dictionaries ready for income and benefit calculations without manual dictionary construction.

No. PolicyEngine-UK abstracts tax and benefit logic into reusable patterns and situation builders. You define household composition, income, and region; the Skill handles income tax, National Insurance, council tax, and Universal Credit calculations transparently.

PolicyEngine-UK situations enable scenario sweeps—batch processing across parameter ranges like income levels or family structures—to compare outcomes systematically. The standardized dictionary format allows programmatic scenario generation and bulk microsimulation tasks.

PolicyEngine-UK encodes tested UK tax and benefit rules, eliminating rebuilds for each reform or scenario. Standardized situation dictionaries ensure consistency across analyses, and helper functions accelerate household modeling so you focus on policy questions instead of implementation.