Add 2023 North Dakota Tax Rules

PolicyEngine / policyengine-us

The PolicyEngine US Python package contains a rules engine of the US tax-benefit system, and microdata generation for microsimulation analysis.

https://policyengine.org/us

GNU Affero General Public License v3.0

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Closed hua7450 closed 2 weeks ago

hua7450 commented 2 weeks ago

This PR supersedes #4308 PR. Fixes #4189 Fixes #4356 Fixes #4357

hua7450 commented 2 weeks ago

To do: find legal code for taxable income base and threshold for marriage penalty credit.