In Short if you sell your home after 3 years and before the 8th year for less than you paid for it you can be reimbursed up to 20% of the price you paid for your home. There are some limits. Your reimbursement is limited to:
1. 20% of the original purchase price,
2. Your actual loss after you sell your home between years 3 and 8.
3. The decline in the Case Shiller Index for your area.