The median home price in New York City is $750,000, with a local 30-year mortgage rate of 6.95%. A buyer putting 20% down carries a loan of $600,000, generating a monthly P&I payment of $3,972. Adding property taxes ($550/mo) and homeowners insurance ($313/mo) brings total monthly PITI to $4,834.
New York City's property tax rate of 0.88% is near the national average, adding a standard increment to monthly housing costs. On the New York City median home, that is $550/month, or $6,600 per year.
New York levies a state income tax, which affects take-home pay and effective buying power. High-income earners in New York City should factor state tax liability into their overall housing budget — mortgage interest may be deductible on both federal and state returns.