Obtain the necessary forms for a deferred compensation agreement, including the employee's acknowledgement of the agreement and an IRS Form W-4P. Please check with your employer or Local before filling out the Deferred Salary Agreement form.Additional information about your pre-tax contributions. Sample Model Plan Filing Package. An example on how to fill out the model plan document. Deferred compensation is that portion of your employment compensation that is earned in one year, but not payable until a later date. A deferred payment agreement is an agreement between a lender and a borrower where the borrower pushes their payments back to a later date.