46 CFR § 287.15
Time for making deposits
April 15, 2021
(a) Proceeds of sale or indemnification. Deposits of amounts representing proceeds of the sale or indemnification for loss of a vessel or share therein must be made within 60 days after receipt by the taxpayer.
(b) Earnings and receipts. Earnings and receipts for the taxable year may be deposited at any time. (See §287.14.)