12 CFR 502.10 - How does OTS calculate the semi-annual assessment for savings associations?
(a) If you are a savings association, OTS determines your semi-annual assessment by totaling three components: your size, your condition, and the complexity of your business. OTS determines the amounts of each component under §§ 502.15 through 502.25 of this part.
(b) OTS uses the September 30 Thrift Financial Report to determine amounts due at the January 31 assessment; and the March 31 Thrift Financial Report to determine amounts due at the July 31 assessment. For purposes of §§ 502.10 through 502.25 of this part, total assets are your total assets as reported on Thrift Financial Reports filed with OTS.