From six years to permanently

  • Keep all records documenting the purchase price and the cost of all permanent improvements — such as remodeling, additions and installations.
  • Keep records of expenses incurred in selling and buying the property, such as legal fees and your real estate agent’s commission, for six years after you sell your home.
  • Holding on to these records is important because any improvements you make on your house, as well as expenses in selling it, are added to the original purchase price or cost basis. This adds up to a greater profit (also known as capital gains) when you sell your house. Therefore, you lower your capital gains tax.