February 28th – Deadline to file Form 1099-R with the IRS, if not filed electronically, to report distributions for the previous year.

March 15th – Employer contributions are due to the retirement plan’s trust for S-Corporations and partnerships with December 31 fiscal year ends, in order to take deductions with no corporate extension.

March 15th – Deadline for distributing ADP/ACP refunds without incurring a 10% excise tax on the employer for plans with a December 31 year end.

April 15th – Employer contributions are due to the retirement plan’s trust for C-Corporations with December 31 fiscal year ends, in order to take deductions with no corporate extension.

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