How do you handle issuing 1099s of loan amounts to ees if they have a multiyear forgiveness schedule? 1099 the full amount in year paid, or 1099 the amount forgiven?

We issued an 80,000 loan to an employee in 2017 and have included a 4 year forgiveness schedule, with the first date of forgiveness being 12/31/2018. Do we issue him a 1099 for 2017 for the full 80,000?  Or do we issue him a 1099 in 2018 for the amount of the forgiveness?