Employer contributions that are not tied to elective deferrals has to be made by the submitting deadline with the employer's tax return, which includes extensions. Contribution deadline: Employers have to make contributions because of the business enterprise's tax-submitting deadline. They must deposit wage deferral contributions from workers no later on https://kingswoodhomes.uk.com/news/give-your-deposit-a-boost-this-summer-with-kingswood-homes/