C. To Discontinue your Retirement Plan Contributions. You will always share in the matching contribution regardless of the amount of service you complete during the.Federal benefit limits for high income members. If you are a highly paid member or retiree, you may encounter a federal limit on your retirement benefit. Match formulas with dollar caps can help ensure employer contributions go to those who need them most. Contribution Eligibility. Anyone with earned income. Do you know what it takes to work towards a secure retirement? Use this calculator to help you create your retirement plan. A group of people are waving to each other before they head separate ways.