A deferred compensation agreement is an agreement between a company and an employee that withholds paying some of the employee's salary. The City of San Diego offers employees tax-deferred retirement savings plans to help employees achieve a financially secure retirement.The County of San Diego's Deferred Compensation Program is committed to helping County Employees plan for and live in retirement. Obtain the necessary forms for a deferred compensation agreement, including the employee's acknowledgement of the agreement and an IRS Form W-4P. Tax Collection Forms. Future benefits from the 457(b) Plan will reflect the amount of a participant's voluntary salary deferral contributions plus earnings. Vesting is immediate. This program provides financing in the form of a second trust deed loan. Eligible Borrowers: 1. A deferred payment agreement is an agreement between a lender and a borrower where the borrower pushes their payments back to a later date.