A deferral agreement is a contract between a lender and company that sets the terms and conditions of an agreed-upon payment deferral. Contractor must submit evidence of insurance on the City of Chicago Insurance Certificate Form (copy attached) or equivalent prior to execution of Agreement.A deferred payment agreement is an arrangement with your local council where they pay for your care and you can repay the money later. To qualify for the tax deferral you must. A deferred payment agreement is an arrangement with your council that lets you use your home's value to cover care home costs.