The labor laws in New York state do not require workers to provide their employers with any notice when quitting their position. If an employee leaves without providing the required notice, the employer may withhold payment of wages or pursue legal action.Employers must not add shifts to an employee with less than 72 hours' notice without the employee's consent. In general, if you have worked more than 40 hours in a pay week, and are not "exempt", you must be paid an overtime rate for all hours over 40. Unless you have a specific notice requirement in your employment contract, there is no requirement to give notice under the law. Just explain with your email proofs that your company did not want to pay the notice period salary. If your employment contract does not specify your notice period, you should give at least a week's notice before leaving your role. State law requires all employers to post a notice of Massachusetts wage and hours laws in the workplace in a location where it can be easily read. The answer to your question is no. An employer is allowed to lower your wages, but they cannot do it without notice.