Refundable credit for ny property tax eligibility .

In addition to the other requirements, you would have enrolled in the STAR benefit program.

According to the state of NY 

"To be eligible for this credit, you must meet all the following requirements:
• you are a New York State taxpayer who, for the purposes of this credit, is required to file a return under Tax Law Article 22;
• you were a New York State resident for all of the tax year;
• you owned real property that:
              o was your primary residence for six months or more of the tax year, and
              o received the STAR benefit as either an exemption or a credit; 
• any rent you received from nonresidential use of your residence was 20% (0.2) or less of the total rental income you received;
• you paid the real property taxes on the property fully or partially; and
• your qualified gross income was $250,000 or less."
 

HERE is a link for more information