Payroll rules change every January; Odoo's localisation does not always keep up in your version. These modules bring the 2026 federal percentage-method tables and fix two known issues, on the stock salary rules.
What it does
- 2026 Pub 15-T percentage method tables (standard and Step 2 checkbox schedules) as rule parameters dated 2026-01-01, same external IDs as stock so no duplicates.
- Federal income tax rule override: qualifying surviving spouse uses the correct line 1g amount (no over-withholding), and withholding is rounded to whole dollars as the IRS allows.
- Arizona: 4.0% (and 5, 5.1, 5.2%) withholding options added to the employee's state filing status, on both regular pay structures.
How it is used
- Install; the 2026 tables apply from 1 January 2026.
- Set the Arizona option on employees who asked for it.
- Run payroll as usual.
Who it is for
US companies running payroll in Odoo, especially with Arizona employees.
Requirements: Odoo 19 Enterprise with l10n_us_hr_payroll.