215.425  Extra compensation claims prohibited.--No extra compensation shall be made to any officer, agent, employee, or contractor after the service has been rendered or the contract made; nor shall any money be appropriated or paid on any claim the subject matter of which has not been provided for by preexisting laws, unless such compensation or claim is allowed by a law enacted by two-thirds of the members elected to each house of the Legislature. However, when adopting salary schedules for a fiscal year, a district school board or community college district board of trustees may apply the schedule for payment of all services rendered subsequent to July 1 of that fiscal year. The provisions of this section do not apply to extra compensation given to state employees who are included within the senior management group pursuant to rules adopted by the Department of Management Services; to extra compensation given to county, municipal, or special district employees pursuant to policies adopted by county or municipal ordinances or resolutions of governing boards of special districts; or to a clothing and maintenance allowance given to plainclothes deputies pursuant to s. 30.49.