The Small Business End-of-Year Checklist: 20 Things to Do Before December 31

December is a trap for small business owners. The holidays slow things down, you feel like you can coast a little, and then January hits like a freight train — W-2s, 1099s, tax prep, license renewals, and all the things you meant to handle before the year ended.

Run this checklist every year before December 31. It takes a few hours spread across a couple of weekends and saves you significant stress in Q1.

Finance & Taxes

Reconcile your books through November. Make sure every transaction is categorized and every bank statement matches your bookkeeping software. This is what your CPA will need in January.

Collect W-9s from any subcontractors you paid $600 or more this year. You'll need these to issue 1099-NECs by January 31. Don't wait until January to chase them down.

Review your accounts receivable. Which invoices are still open? Make one final push to collect before year-end. Uncollected revenue is cash that belongs to you.

Look at any large purchases you're planning. Under IRS Section 179, you can deduct the full cost of qualifying business equipment purchased before December 31 in the current tax year. Talk to your CPA before buying that truck or equipment to confirm timing.

Max out any retirement contributions. Solo 401(k) and SEP-IRA contributions can significantly reduce your taxable income. Contribution deadlines vary — confirm with your CPA.

Pay any outstanding vendor invoices. Expenses paid before December 31 are deductible in the current year.

Set aside your Q4 estimated tax payment. Due January 15. Don't get caught short.

Review your pricing. Will you be raising rates in January? Now is the time to update your estimate templates and notify any ongoing clients.

HR & Payroll

Verify employee addresses. W-2s go to the address in your payroll system. If anyone moved this year, update it now.

Confirm all employee I-9 documents are current. Some work authorization documents expire. Check expirations for any employees with temporary authorization.

Review PTO balances. Do you have a use-it-or-lose-it policy? Notify employees of any deadlines.

Conduct year-end performance reviews. Even a 20-minute conversation with each employee about what went well and what they're working on in the new year makes a significant difference in retention.

Review compensation. If you're planning raises for January, confirm those numbers and communicate them to employees before the holidays.

Operations & Admin

Renew any expiring licenses. Trade licenses, business licenses, and vehicle registrations often have year-end renewals. Check expiration dates for everything in your name.

Review your insurance policies. When do they renew? Are your coverage limits still appropriate for your current size? Did you add vehicles, employees, or equipment this year that might not be covered?

Clean up your digital files. Archive completed job files, update your customer database, and delete anything you don't need. A clean file system in January is worth more than most people realize.

Review your software subscriptions. Are you paying for tools you don't use? Cancel them before the annual renewal. Are there tools you need that you've been putting off? January is a good time to get set up.

Planning for Next Year

Set your revenue goal for next year. Not a wish — an actual number based on your capacity, your pricing, and your growth plan. Write it down.

Identify your top 3 operational priorities for Q1. What systems need to be built? What problems keep recurring? What's the one thing that, if fixed, would make the biggest difference?

Schedule your annual CPA meeting. The best CPAs fill up fast in January and February. Book your appointment now.

Write down what worked this year and what didn't. This takes 30 minutes and is the most underrated business exercise you can do. What jobs were most profitable? What customers were a headache? What marketing actually brought in leads? Use last year's data to make better decisions next year.

One More Thing

Send your best customers a thank-you note or a small gift before the year ends. Not a sales pitch — just genuine appreciation. In a world where most businesses treat customers as transactions, a handwritten card or a box of cookies from a local bakery is remembered. And remembered customers refer people.

Templates That Help

The Contractor Spreadsheet Bundle includes a monthly P&L and a revenue tracker so you can see exactly what came in, what went out, and where your profit actually went this year. The Small Business Startup Bundle includes a 12-month cash flow forecast, startup budget, and LLC vs. S-Corp guide — the same documents you'll want at your CPA meeting in January. If you're also hiring or managing a growing team, the Office Manager Toolkit includes an AR tracker, employee file checklist, and payroll tracking spreadsheets so your back office stays organized all year.

The contractors who start January ahead of the game aren't the ones doing more work — they're the ones who spent a few hours in December getting their house in order. Knock this checklist out before the 31st and you'll thank yourself when everyone else is scrambling.