You need professional legal and tax advice in your state. The problem is, you were treating an LLC as if it means nothing, just a piece of paper that allows you to do things that you want but doesn’t require you to do things that you don’t want. This may be incorrect.
In general, if you have more than one business, you must report them separately. There is not necessarily a black line rule for this. You may have separate businesses if the work that you do has income streams and expenses and deductions that are so different from each other that they can’t reasonably be combined into one business. Or, you may choose to treat your different businesses as separate businesses.
For example, someone who drives for Lyft, Uber, and DoorDash could reasonably combine their income and expenses under one business for “rideshare“ or some similar title, because the expenses and income are all similar. If that person was also an architect, it would not be reasonable to include their income and expenses as an architectural contractor on the same business. As I said, there is no black letter rule, and in some cases, it might be reasonable to include all of the activities one performs under the general label of “personal services”. This is why you may need professional tax advice.
The services that you list, could possibly all be reasonably combined under the title of “software consulting” or “ computer consulting services”. You would file one schedule C (if this is a single-member LLC treated as a disregarded entity) listing all the combined income and expenses from all the different services you provide. This would also be compatible with only having registered a single LLC. If you want to keep those lines of business separate, you would need to file a separate schedule C for each job. One of the jobs would be performed under the LLC, and the other jobs would be performed as unincorporated sole proprietorships. However, you have muddied the waters somewhat by using the same bank account for all the jobs and by only registering one LLC. You would also not have the protection of the LLC structure for any of the jobs that are not performed by the LLC. Analysis of the situation would also require a thorough reading of the documents you filed when you register the LLC and what you said it would do. If you really think that the LLC structure provides you some liability protection, you do not want to defeat that protection by doing some things under the LLC and other things not under the LLC, that could allow a creditor or injured client to sue you and claim that you aren’t protected by the LLC because you have been too inconsistent in how you use it.
So, you really need legal advice.
