I'm using the rate table, through the state's online PIT-1 (Taxpayer Access Point - State of New Mexico). I selected "Rate Table" on Line 18a of the state's online form, which resulted in the form automatically calculating the tax on line 22. The current tax rates are documented (in equation form, not as tables) on the last page of https://www.tax.newmexico.gov/individuals/wp-content/uploads/sites/5/2021/12/PIT-rates_2005_2021.pdf. The state's calculation is consistent with their documented rates.
