The median home price in South Portland is $420,000, with a local 30-year mortgage rate of 6.95%. A buyer putting 20% down carries a loan of $336,000, generating a monthly P&I payment of $2,224. Adding property taxes ($378/mo) and homeowners insurance ($175/mo) brings total monthly PITI to $2,777.
South Portland's property tax rate of 1.08% is near the national average, adding a standard increment to monthly housing costs. On the South Portland median home, that is $378/month, or $4,536 per year.
Maine levies a state income tax, which affects take-home pay and effective buying power. High-income earners in South Portland should factor state tax liability into their overall housing budget — mortgage interest may be deductible on both federal and state returns.