RSA 275:48 Withholding of Wages.

I. No employer may withhold or divert any portion of an employee's wages unless:
(a) The employer is required or empowered to do so by state or federal law, including payroll taxes.
(b) The employer has a written authorization by the employee for deductions for a lawful purpose accruing to the benefit of the employee as provided in regulations issued by the commissioner, as provided in subparagraph (d) or for any of the following:
(1) Union dues;
(2) Health, welfare pension, and apprenticeship fund contributions;
(3) Voluntary contributions to charities;
(4) Housing and utilities;
(5) Payments into savings funds held by someone other than the employer;
(6) Voluntary rental fees for non-required clothing;
(7) Voluntary cleaning of