Did your SMLLC elect to be a S corp? If not then it is a disregarded entity and you file it on schedule C in your personal tax return. The "loan" doesn't go on your tax return. It is just a transfer from a personal account to your business account. It's just moving funds from one pant's pocket to the other pocket. It's all personally yours. You just enter and account for the actual expenses you spent it on.
