How to fix Taxable Wages/Excludable Wages for a specific local tax across all employees

We had a new tax this year, Supportive Housing Tax. It is a tax on income but FSA, HSA, healthcare benefits should not be considered as Taxable Wages when this tax is calculated. I just discovered that the system is not treating these 125 withholdings correctly as Excludable Wages so our Taxable Wages for this particular tax are inflated for all our employees.

JDE doesn't have a fix yet and until this is fixed the Taxable Wage for this tax will always be wrong for every employee. Anyone know how to address this issue every pay period? Do I update every PDBA that falls into this category with a Tax Exemption and enter in this particular tax?