Year-End Checklist for Small Business Owners: Close 2026 Clean and Start 2027 Ready

Every January I get the same call. A business owner’s CPA needs final numbers, the bookkeeper is still reconciling October, there’s a stack of contractor payments with no W-9s and nobody is sure what the inventory count was on December 31. None of that is a January problem. It’s a November and December problem that shows up late.

The good news is that year-end doesn’t have to be a scramble. If you break it into three parts, closing the books, planning taxes with your CPA and getting ready for next year, most of the work is routine. This guide walks through each part, with a checklist you can hand to your team.

Key takeaways

• A year-end close is the last monthly close of the year, plus the extra cleanup and true-ups that make the annual numbers final.
• Start in November: reconcile every account, clean up receivables and payables and count inventory on time.
• Meet with your CPA before December 31, while there’s still time to act on timing decisions.
• Collect W-9s now. For payments made in 2026, the 1099-NEC threshold rose to $2,000 and forms are due February 1, 2027.
• Use the clean year-end numbers to lock in your 2027 budget, cash forecast and KPIs.
• Answers to common questions on timing, 1099s and what to do if you’re already behind are below.

What is a year-end close?

A year-end close is the process of finalizing your company’s books for the fiscal year: reconciling every account, recording final adjustments and producing financial statements that your CPA, lenders and leadership can rely on.

It’s your December month-end close with a few extra layers. Things that are easy to let slide during the year, like accruals, fixed asset additions, inventory adjustments and prepaid expenses, all have to be right at year-end because they flow straight into your tax return and your opening balances for next year. If the year-end numbers are wrong, every report in 2027 starts from the wrong place.

For most businesses with a calendar fiscal year, I recommend thinking about it in three phases:

• Early to mid-November: catch up the books and plan with your CPA.
• December: act on tax timing decisions, collect documents and prepare for counts.
• January: close December, file payroll and information returns and finalize the year.

Part 1: Close the books

This is the foundation. Your CPA can’t plan taxes on numbers that are three months behind, so get the books current first.

1. Catch up and reconcile every account

Every bank account, credit card, loan and merchant account should be reconciled through the most recent month-end before you do anything else. Don’t stop at the bank. Reconcile balance sheet accounts too: payroll liabilities, sales tax payable, loans, prepaid expenses and owner accounts. Unreconciled balances are where year-end surprises hide.

2. Clean up accounts receivable

Run an aging report and go through it line by line. Chase anything past due, issue credit memos for disputes you’ve agreed to and talk with your CPA about writing off balances you won’t collect. Old receivables that never get cleaned up overstate revenue and make your balance sheet look healthier than it is.

3. Review accounts payable and accruals

Make sure every bill for 2026 work is in the system, even if it arrives in January. If you report on the accrual basis, record accruals for expenses you’ve incurred but not yet been billed for, like December utilities, contractor hours or a year-end bonus. Clear out duplicate or stale bills while you’re there.

4. Count inventory

If you carry inventory, schedule the physical count for as close to December 31 as you can and compare it to your system. Adjust for shrinkage, damaged goods and obsolete stock. For e-commerce brands, include inventory held at 3PLs and marketplace warehouses, not just what’s on your own shelves.

5. Update fixed assets and prepaid expenses

Record equipment, computers, vehicles and improvements bought during the year, and get the invoices to your CPA. Review prepaid expenses like annual software, insurance and rent deposits so each one is spread over the right months rather than expensed all at once.

6. Review owner and related-party accounts

Owner draws, distributions, shareholder loans and personal expenses run through the business all need to be classified correctly. These are some of the most common items CPAs have to fix at tax time, and they matter even more if a lender or buyer will look at your books.

Part 2: Plan taxes with your CPA

I’m not giving tax advice here, and every business is different. But I can tell you the single biggest year-end mistake I see: owners meet with their CPA in March, when the only thing left to do is report what already happened. Book a planning meeting in November or early December, while timing decisions are still open.

Bring your year-to-date financials and a projection for the rest of the year, and ask about:

• Equipment and capital purchases. The One, Big, Beautiful Bill Act of 2025 made higher Section 179 limits permanent and restored 100% bonus depreciation for qualified property acquired and placed in service after January 19, 2025, according to the IRS. Whether buying before year-end helps you depends on your situation, so model it with your CPA first.
• Research and development costs. The same law lets businesses deduct domestic research and experimental costs in the year they’re paid or incurred, starting in 2025. That’s especially relevant for SaaS and technology companies that build software.
• Timing of income and expenses. Depending on your accounting method, when you invoice, collect or pay can shift income between years.
• Estimated tax payments. Confirm what’s due for the fourth quarter and whether your payments to date are on track.
• Owner compensation. For S corporation owners, review whether salary and distributions are reasonable and set for the year.
• Retirement plan contributions. Ask which plans need to be set up or funded by year-end versus by the filing deadline.

The point isn’t to chase every deduction. It’s to make decisions on purpose, with real numbers, instead of finding out in April. That’s much easier when your books are already current, which is why Part 1 comes first.

Payroll, 1099s and January deadlines

Information returns are where small details turn into penalties. Two changes and dates are worth noting for this filing season.

First, the 1099 threshold went up. For payments made after December 31, 2025, the reporting threshold for Forms 1099-NEC and 1099-MISC rose from $600 to $2,000, with inflation adjustments starting in 2027, per the IRS summary of the 2025 business tax provisions. That means fewer forms for many businesses, but you still need accurate vendor records to know who crosses the line.

Second, the deadline lands on a Monday. The usual January 31 due date for Form 1099-NEC falls on a Sunday in 2027, so forms for 2026 payments are due February 1, 2027. Form W-2 follows the same January 31 rule, so plan for the same date.

Rules and dates can change, so confirm the final list with your CPA or payroll provider each year. Your state may also have its own filing requirements and dates.

Part 3: Get ready for 2027

Once 2026 is closed, you finally have a reliable starting point. This is the part most owners skip, and it’s where the real value is.

Lock in your 2027 budget

Build next year’s budget from your actual year-end run rate, not last year’s guess. Start with revenue drivers like customers, pricing and capacity, then layer in hiring and big expenses. Our guide on how to create a business budget for 2027 walks through the process and includes a free template.

Set up a rolling cash forecast

Q1 is often tight on cash: tax payments, annual renewals, slower collections after the holidays. A 13-week cash flow forecast shows you those dips weeks ahead so you can plan around them instead of reacting.

Fix the process, not just the numbers

If year-end was painful, ask why. Was the close running weeks late all year? Were reconciliations skipped? Is the chart of accounts a mess? Set a monthly close calendar for 2027 with a goal of closing within about ten business days. That makes next year-end a non-event.

Pick the KPIs you’ll review every month

Choose five to ten numbers that tell you how the business is doing, such as gross margin, cash runway, days sales outstanding and revenue per employee, and review them monthly against budget.

Decide if you’ve outgrown your setup

Year-end is a natural time to ask whether your current accounting support still fits. If you’re still fixing the books yourself, or your CPA keeps finding the same problems, it may be time for controller oversight. Here’s how to tell when to hire a controller.

Year-end watch-outs by industry

The bottom line

A good year-end isn’t about working harder in January. It’s about doing the routine work in November and December: reconcile everything, clean up receivables and payables, count inventory, meet your CPA while decisions are still open and collect the documents you’ll need for filings. Do that, and you close 2026 with numbers you trust and start 2027 with a budget and forecast built on solid ground. If the books themselves are the problem, start with the foundation in Client Bookkeeping Solutions: What Growing Businesses Actually Need.