The CPA firm actually does not calculate the interest for every unit in the coop. They send out a standard letter to every owner of the coop. Each owner has a number of shares of the coop, similar to stocks in a company. The shares are determined by the size of the apartment and its location (higher floors has more shares). The standard CPA letter provides the interest for 1 share. Then each owner can multiply the number shares for the apartment by this number to get the interest. No one in the coop gets a 1098 form from the CPA firm.
I've used TaxSlayer in previous years and was able to enter the interest in their software. However, I am unable to find where I can enter it in TurboTax. Then, of course, the tax account was also able to do this in whatever software he was using.
