If you are an in-service Tier I or II member who is not on a leave of absence, your employer makes contributions equaling 2.5% of your salary to your Increased-Take-Home-Pay (ITHP) account. If you retire, you would receive this amount as part of your retirement allowance. In addition, certain Department of Education and Charter School employees in all tiers receive a supplemental contribution when they reach the maximum of their salary schedule. This amount is $550 per year for supervisors, and $400 per year for other members. If you are a Tier I or II member, this amount is deposited in your Annuity Savings Fund (ASF) account; if you are a Tier III, IV, or VI member, this amount is deposited in your Annuity Savings Accumulation Fund (ASAF) account.