N.Y. Real Property Tax Law § 499-gg: Tax lien; interest and penalty

§ 499-gg. Tax lien; interest and penalty. All taxes, with interest,

required to be paid retroactively pursuant to this title shall

constitute a tax lien as of the date it is determined such taxes and

interest are owed. All interest shall be calculated from the date the

taxes would have been due but for the abatement granted pursuant to this

title at the applicable rate or rates of interest imposed by such city

generally for non-payment of real property tax with respect to the

eligible building for the period in question. When a provision of this

title requires the payment of a penalty in addition to interest, the

amount of such penalty shall be equal to the amount of interest that

would have been payable pursuant to such provision had such interest

been calculated at the rate of three percent per annum.