The median home price in District of Columbia is $645,000. At 80% LTV, the typical loan is $516,000 at the current 6.90% average rate, producing a monthly P+I payment of $3,398. Total interest over 30 years at this rate: $707,416.
Property taxes in District of Columbia average 0.56% of assessed value, or $3,612 per year on the median home. This adds $301/month to your all-in housing cost. When evaluating a refinance, factor in property tax and insurance for a complete picture.
District of Columbia 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.