Hypothetical ...
Adam buys a house for $400k and rents it to Bill. They sign a two year lease.
Eighteen months later, Adam needs some cash so he wants to sell, but Adam is locked into a lease with Bill for another six months. Charlie wants to buy the house for $425k, but doesn't want to deal with tenants. Adam sells Charlie a $390k, eight-month option to purchase the house for $35k.
Everybody's happy. Adam has $35k he needs to buy that new car. When Charlie exercises his option after the tenant has moved out, the effective purchase price will be $425k ($390k + $35k).
Question 1: What purchase price will be reported to the IRS? Is the $35k option part of the sales price, or does it reduce the cost basis?
Question 2: If Charlie changes his mind and does not exercise his option, how is the $35k option price handled? Does it reduce Adan's cost basis when (and if) he eventually does sell the property?