Membership in TCSA is based on the charter holder data and comes with extensive benefits including free and discounted services. Dues are calculated on the total student enrollment for every charter/charter campus held by the charter holder as of the prior year’s TEA Snapshot. A school’s dues are calculated based on the formula as outlined in the chart below. These dues cover the membership period from November 1st through October 31st. Charters are considered members upon receipt of payment.