There is a version of year-end where your CPA opens the file, reviews it, asks two questions, and files. There is another version where they spend eleven hours reconstructing your year and bill you for eleven hours. The difference is almost entirely determined before January.
We sit on the handing-over side of this, and the same gaps come up every single year.
A closed year, not a live one
The single most valuable thing you can hand over is a year that has stopped moving. Every month reconciled, adjusting entries posted, and the file locked so figures do not shift underneath the person working on them.
When a preparer pulls a trial balance on Tuesday and it does not match the one they pulled on Monday because someone recategorised transactions in between, the work restarts. Locking the period is unglamorous and saves more time than anything else on this list.
Bank and credit card reconciliations that actually reconcile
Not "marked reconciled." Actually reconciled — every account matched to its December statement, with no plug entry making the difference vanish.
A forced reconciliation is worse than an unfinished one. It looks complete, so nobody investigates, and the error propagates into the return.
The loan statements
Every loan and line of credit needs a year-end statement showing the closing balance and the interest paid during the year. This is the most reliably missing item on the list.
It matters because loan payments split between interest, which is an expense, and principal, which is not. If nobody has that split, the whole payment often gets expensed — which overstates expenses, understates the liability, and produces a balance sheet that does not tie to what the lender says you owe.
Fixed asset purchases, with dates and amounts
Anything substantial you bought: equipment, vehicles, computers, improvements. Your CPA decides how each is treated for tax purposes, but they can only decide about things they know exist. An $18,000 asset buried in a general expense account usually stays buried.
Payroll reports that tie to the books
Year-end payroll summaries from your provider, reconciled against what the books say. If your payroll expense is $340,000 and your provider's annual report says $328,000, someone has to find the $12,000, and it is much faster when the person looking has both documents.
Owner draws and contributions, separated
Money you took out and money you put in, recorded as equity movements rather than income and expense. Mixing draws into expenses overstates costs and understates profit — which sounds advantageous right up until you need the books to support a loan application or a sale.
The one-off explanations
Every business has a handful of unusual transactions a year. The insurance settlement. The equipment you sold. The refunded deposit. Write them down as they happen, in a running note. Reconstructing "what was this $22,000 in August" in the following March is genuinely hard and always expensive.
Why this is worth doing
The self-interested reason is cost. Your CPA charges for time, and time spent reconstructing records is time not spent on the work you actually hired them for. Clean books turn a reconstruction into a review.
The better reason is accuracy. A return built on records nobody could fully resolve inherits every unresolved item. You want the person filing to be exercising judgement about tax positions, not guessing what a transaction was.
This is the whole reason our work stops where it does. We are a bookkeeping firm — not a licensed CPA firm or a registered tax preparer — and we do not prepare or file income tax returns. What we do is close the books monthly so this list is already satisfied in December rather than assembled in a panic in March.
Behind on Your Books?
We handle your bookkeeping end-to-end — categorization, reconciliation, month-end close, and clean financial statements, so your books stay current and CPA-ready.