N.Y. Comp. Codes R. & Regs. tit. 20, § 654.1
(1) A mortgagor or mortgagee may claim a refund of any of the mortgage recording taxes paid by them where:
(2) A refund can be claimed by filing an application for refund with the appropriate documentation attached to such refund claim as described in section 654.2 of this Part. Such application for refund must be filed within the times set forth below:
(ii) where a refund is claimed on account of the mortgagor's exercise of the statutory right of rescission, the later of the following:
Tax Law, §§ 263, 257-a
(a)