May 31, Idaho reversed the decision that would require employers to add two more state allowances when calculating withholdings for employees who claimed single and at least one allowance for Idaho state tax. It is no longer necessary to add allowances to Idaho employees claiming single with at least one allowance.
What To Do
Idaho employers are now to refer to employees’ Federal Form W-4 for the number of state allowances. In cases where employees wish to claim fewer state allowances than federal allowances, Idaho employees can either note that on their one Form W-4 or use a separate one marked as their state copy as long as they write “Idaho” across the top of it for their employer.