BILL NUMBER: S10023REVISED 4/28/2026
SPONSOR: MARTINEZ
 
TITLE OF BILL:
An act to amend the real property tax law, in relation to certain base
adjusted proportions
 
PURPOSE:
This legislation would limit the amount of property tax shift between
homestead/non-homestead and class share apportionment for local govern-
ments within and including Nassau and Suffolk County.
 
SUMMARY OF PROVISIONS:
Section 1: Amends section 1803-a of the Real Property Tax Law by adding
a new paragraph (nn) to limit the amount of a property tax shift between
classes of properties caused by large fluctuations in property values
for the 2026-27 assessment roll.
Section 2: Amends subparagraph (iv) of paragraph (a) of subdivision 3 of
section 1903 of the real property tax law to extend for one year the
limitation on the amount of a property tax shift between homestead and
non-homestead properties caused by large fluctuations in property values
within such designated classes within Suffolk County.
Section 3: Amends Section 1903 of the-Real Property Tax Law by adding
new subparagraph (xxvii) to subdivision 3 to limit the amount of a prop-
erty tax shift between homestead and non-homestead properties caused by
large fluctuations in property values within Nassau County.
 
JUSTIFICATION:
In both Nassau and Suffolk County, there is a large differential in
property tax value increases between classes of property. This in turn
causes a large property tax increase in one class of property. Present-
ly, the amount of taxes which can be shifted from one class to another
is generally capped at five percent, but for a number of years the
legislature has extended provisions to cap that amount at 1 percent to
better protect against large property tax shifts.
 
FISCAL IMPLICATIONS:
None to the State
 
EFFECTIVE DATE:
This act shall take effect immediately; provided, however, that para-
graph (oo) of subdivision 1 of section 1803-a of the real property tax
law, as added by section one of this act, shall apply to the levy of
taxes based on the 2026 assessment roll in a special assessing unit that
is not a city and that subparagraph (xxviii) of paragraph (a) of subdi-
vision 3 of section 1903 of the real property tax law, as added by
section three of this act, shall apply to the levy of taxes based on the
2026 assessment roll in approved assessing units in the county of Nassau
that pass a local law, ordinance or resolution to adopt these
provisions.

Statutes affected:
S10023: 1803-a real property tax law, 1803-a(1) real property tax law, 1903 real property tax law, 1903(3) real property tax law