CPA coordination & tax-ready booksHow to Prepare Your Books for Your CPA: A Year-End Checklist

There's a popular belief among small business owners that goes like this: "The CPA will sort it out."

It's a comforting idea. It's also how a CPA ends up spending billable hours doing bookkeeping at tax-season rates, in March, with a deadline breathing down everyone's neck. Your CPA can sort it out. You'll just pay more for it, and wait longer.

The better plan is to hand over books that are already sorted. Below is how to prepare books for a CPA, organized account by account so you can work through it like a grocery list. If you want the "why" first, start with tax-ready books: what your CPA wishes you knew. This is the "how."

Before you start: get the statements

You can't reconcile what you can't see. Download December statements (and any missing earlier ones) for:

• Every business bank account.
• Every business credit card.
• Every loan and line of credit.
• Your payment processors (Stripe, Square, PayPal, Shopify Payments).
• Your payroll provider's year-end reports.

Put them in one folder. Name them sensibly. Future you will be grateful.

The year-end bookkeeping checklist, account by account

Work top to bottom through the balance sheet, then the P&L. This order matters, because fixing the balance sheet first usually fixes the P&L along the way.

Cash

1. Reconcile every bank account through December 31. The reconciled balance should match the statement exactly.
2. Clear old uncleared items. A $340 check from last March that never cleared probably deserves a closer look.
3. Check that transfers between your own accounts show up on both sides.

Credit cards

1. Reconcile every card through its December statement, and make sure the statement closing dates line up with what's recorded.

Accounts receivable (money customers owe you)

1. Run the A/R aging report. Anything over 90 days: is it collectible? Talk to your CPA about how to handle amounts you won't collect.
2. Look for customer payments recorded as new income instead of applied to invoices. This one inflates revenue and leaves invoices open forever.

Accounts payable (bills you owe)

1. Run the A/P aging report. Old bills that were actually paid but never marked paid are common.
2. If your books are on the accrual basis (recording expenses when incurred, not when paid), make sure December bills are entered in December.

Payroll

1. Compare gross wages, employer taxes and benefits in the books to your payroll provider's annual summary. They should match.
2. Check payroll liability accounts. Balances should reflect only what's truly still owed.

Loans

1. Get the year-end loan statements and confirm the balance in the books matches.
2. Split payments into principal and interest if that hasn't been happening.

Fixed assets

1. List equipment, vehicles, computers and improvements bought during the year, with date, cost and vendor. Your CPA decides how to treat each one for tax.
2. Note anything sold, traded or scrapped.

Equity

1. Make sure owner draws, distributions and contributions are in equity accounts, not mixed into expenses.

Clean-up accounts

1. Bring "Uncategorized Income," "Uncategorized Expense" and "Ask My Accountant" to zero.

Contractors

1. Build the list of contractors you paid and confirm you have a W-9 for each. Our guide to 1099 tracking for contractors covers how to set this up so it's not a January scramble next year.

That's 17 items, which sounds like a lot. Most of them take minutes when the books have been reconciled monthly. They take days when they haven't.

A worked example: the A/R aging surprise

Let's say you run a hypothetical consulting firm. Your balance sheet shows $96,000 in accounts receivable at year-end. That's a lot of money owed to you, so you run the aging report.

It turns out $28,000 of it is invoices where the customer actually paid, but the payment was recorded as a new deposit to "Consulting Income" instead of being applied to the invoice. So revenue is overstated by $28,000 and A/R is overstated by $28,000 too.

Fixing it means applying each payment to the right invoice (which moves the money out of income and closes the invoice). After the fix: A/R is $68,000, and revenue drops by $28,000. Your CPA now has the right number to work with, and you avoided reporting the same $28,000 of income twice.

How to prepare books for your CPA: lock it and send it

When everything above is done:

1. Run a final profit and loss, balance sheet and trial balance (a list of every account and its ending balance) for the year.
2. Set a closing date in your accounting software so nothing gets changed by accident. In QuickBooks Online you'll find this under Settings, Account and settings, Advanced, then Close the books, and you can add a password.
3. Send your CPA the reports, the supporting lists (assets, loans, contractors) and the statements.
4. Note anything unusual in a short cover email: new loans, big purchases, a new location, a change in ownership.

If you'd like the December prep that comes before all this, our year-end close checklist covers what to do while the year is still open.

Books ready for accountant review, all year

The best year-end checklist is the one that's mostly already done. When the books are reconciled and closed every month, preparing for the CPA is a few days of confirmation instead of a few weeks of archaeology.

That's the model ABFI works in: a monthly close, reviewed by a controller, and an organized handoff to your independent CPA at year-end. We don't do the tax work; we make sure the CPA can. More on that on our CPA coordination page.