Provider of residential real estate closing cost data and technology, ClosingCorp, showed that national average closing cost for single-family homes in the first half of 2021 was $6,837 including taxes, and $3,836 excluding taxes. This represents a 12.3% and 10.5% year-over-year increase, respectively. At the same time, closing refinance costs increased marginally by 4.87% to $2,398 compared to 2020’s average of $2,287.