Hi all, I could use some advice on how best to track my income/expenses from RE investments in a way that will facilitate tax return prep by my CPA, but which is not unduly time-consuming or tedious.  I'm still a novice at RE investing, currently own two small MF properties that I bought in late 2021.  I have a professional property manager (PM), who sends me a monthly statement detailing all income/expenses and will send me a form 1099 for tax purposes. But there are other expenses the PM has no knowledge of, such as insurance, property taxes, loan interest, remodeling costs, etc. -- so I can't rely only on the PM's monthly statements and 1099 to track my overall income/loss from the RE.  (My PM uses Rent Manager software, in case that is relevant.)

Last year I manually input all the income plus every individual expense into an Excel spreadsheet, which I then sent to my CPA to prepare my tax returns. But it is becoming way too tedious and time consuming to input all that data, as there always are so many individual expenses, even for just 6 units. 

Any suggestions for a better way to track income/expenses in a way that will facilitate tax return prep, but which is not unduly time-consuming or tedious?  I've considered simply inputting into the spreadsheet the total income/expense from my PM as a single lump sum every month, and then adding only the other expenses (insurance, property tax, loan interest, remodeling costs) as individual line items, since there aren't as many of those.  That would greatly reduce the amount of data I need to input, but I'm not sure if it would be sufficient for tax purposes, or from a general business record-keeping perspective.

Any help on this would be appreciated. Thanks!