The median home price in South Carolina is $310,000. At 80% LTV, the typical loan is $248,000 at the current 6.90% average rate, producing a monthly P+I payment of $1,633. Total interest over 30 years at this rate: $339,998.
Property taxes in South Carolina average 0.57% of assessed value, or $1,767 per year on the median home. This adds $147/month to your all-in housing cost. When evaluating a refinance, factor in property tax and insurance for a complete picture.
South Carolina residents can deduct mortgage interest on state income tax returns for primary residences, subject to state-specific limits. The federal mortgage interest deduction applies on loans up to $750,000.