8/20/2026 · taxes, bookkeeping basics, real estate investing

What your CPA actually needs from your books at year-end

Illustration of a tidy folder of statements passing from a ledger desk to an accountant's desk, a calendar showing December

Ask a CPA what makes a tax return expensive and the answer is never the tax law — it's the January archaeology. Reconstructing a year of books from bank statements at tax time costs multiples of what keeping them would have, and it happens at the exact moment your CPA has forty other clients doing the same thing. Here's what they actually need from you, and what it looks like when your books can simply hand it over.

The six things your CPA actually uses

  1. A P&L and balance sheet that tie to the banks. Not exports of a feed nobody reviewed — statements where every account reconciles to the penny through December 31. The balance sheet matters more than most investors think: it's where a CPA spots the misbooked refi, the phantom loan, the negative deposit liability.
  2. Per-property numbers. Real estate returns are property-by-property (Schedule E, or the partnership equivalent). Books kept class-per-property produce that in one report; books that lump properties force your CPA to split them at their hourly rate.
  3. Loan detail. Ending balance and total interest for every loan, matching the lenders' 1098s — which means payments were split principal-and-interest all year, not booked whole to expense.
  4. The fixed-asset story. What you bought, sold, and improved this year, with dates and amounts — closing statements for purchases and sales, improvement totals per property. This drives depreciation, and depreciation drives the return.
  5. The weird-events file. Insurance settlements, a refinance, a 1031 in progress, a partner bought out. One paragraph per event, written when it happened, beats your best memory in February.
  6. Owner money, labeled. Contributions and distributions in their own equity accounts — not scattered through income and expenses — so basis and reasonable-comp questions have answers.

What they'll ask anyway — so answer it in advance

Every year-end letter asks the same questions: any new entities or bank accounts? any personal expenses run through the business? vehicle use? home office? contractors over the 1099 threshold with W-9s on file? A monthly bookkeeping habit answers these as they happen — the 1099 list, for instance, should be a report you run, not a January scramble.

The December difference

For an investor whose books were kept all year, year-end is genuinely small: final month reconciled, a short review pass, the package sent — days, not weeks. For everyone else, it's a catch-up project wearing a deadline. The tax return itself costs less too, because CPA hours spent fixing books are billed at CPA rates for bookkeeper work — the most expensive way there is to buy bookkeeping.

The quiet bonus: a CPA who trusts your books starts doing *planning* instead of repair. The conversations shift from "what is this $14,000 deposit?" to "should this property move to an S-corp?" — which is what you were paying for all along.

Money On The Mend delivers this package as the natural output of monthly bookkeeping — reconciled, per-property, CPA-ready, every year, without a December fire drill.

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