Year-end bookkeeping checklist for Utah small businesses (2026 close, 2027 deadlines)

Every January I get the same message: "I think my books are fine, can you just do my taxes?" Then we open QuickBooks and find four months of uncategorized transactions, a loan that was booked as income, and a contractor who was paid $9,000 with no W-9 on file. None of that is a crisis in October. All of it is a crisis in March. Here is the list I work through with every client before the year closes, plus every deadline you need for the 2026 tax year.

The short answer

If you do nothing else before December 31: reconcile every bank and credit card account through the latest statement, collect a W-9 from every contractor you paid $2,000 or more, separate any personal spending that landed in the business, and write down your inventory count and mileage. Those four things cover most of what goes wrong at tax time.

Step 1. Reconcile everything, not just checking

Reconciling means matching what the books say against what the bank says, line by line, until they agree. It is the only way to know the numbers are real. Do it for every account the business touches: checking, savings, every credit card, every loan, and every payment platform like Square, Stripe, PayPal, or Venmo. If an account has never been reconciled, that is a cleanup job, and it is cheaper to do it now than in April. I wrote up exactly how catch up bookkeeping works if you are months behind.

Step 2. Clear the "ask my accountant" pile

Every bookkeeping system has a parking lot for transactions nobody knew how to categorize. Empty it before year-end while you still remember what the $412 charge from a company you have never heard of was. Common ones: owner draws booked as expenses, loan payments booked as expenses (only the interest is deductible), equipment purchases booked as supplies, and transfers between your own accounts booked as income.

Step 3. Sort out contractors and the new $2,000 rule

This is the one that changed. Starting with payments made in 2026, the threshold for sending a 1099-NEC to a contractor is $2,000 for the year, up from the old $600. If you paid an individual, a single-member LLC, or a partnership $2,000 or more for services during 2026, you owe them a 1099-NEC by February 1, 2027 (January 31 lands on a Sunday). Corporations are generally exempt, and so are payments you made by credit card or through a processor, because those get reported on a 1099-K by the processor instead.

What you need from each contractor is a signed W-9 with their legal name, address, and tax ID. Get them now. Chasing a W-9 in late January from someone who no longer works with you is the single most common reason small businesses file late.

Step 4. Separate personal from business

Mixed spending is the biggest driver of bookkeeping cost and the first thing an auditor looks for. Go through the year and tag anything personal that hit a business account as an owner draw or distribution. If you are an S corporation, confirm you actually ran payroll for yourself this year, because the IRS expects a reasonable salary before any distributions.

Step 5. Capture the year-end numbers that disappear

• Inventory count as of December 31, if you sell physical products.
• Business mileage total for the year, with a log that shows dates and purposes.
• Home office square footage and total home square footage, plus your utility and rent or mortgage interest totals.
• Fixed assets bought this year: the date, the cost, and what it was. Vehicles, computers, equipment, anything over a few hundred dollars that will last more than a year.
• Loan balances at year-end from the lender's statement, so the books match.

Step 6. Look at the tax picture before December 31, not after

Once the books are reconciled through November you can see roughly where profit lands, and that is when there is still time to do something about it. Buying equipment you were going to buy anyway, paying a Q4 bill in December instead of January, or funding a retirement account can all move the number. After December 31 the only lever left is which forms you file.

The 2027 deadline calendar for a 2026 tax year

Deadline	What is due
January 15, 2027	Fourth quarter 2026 federal estimated tax payment (sole proprietors, partners, S corp owners).
February 1, 2027	W-2s to employees and the SSA. 1099-NECs to contractors and the IRS. (January 31 is a Sunday.)
March 15, 2027	Federal partnership returns (Form 1065) and S corporation returns (Form 1120-S), or an extension to September 15.
April 15, 2027	Federal individual returns with Schedule C (Form 1040) and C corporation returns (Form 1120). Also every Utah business return for calendar-year filers: TC-40, TC-65, TC-20S, and TC-20. Utah gives partnerships and S corps a full month after the federal date.
Your anniversary month	Utah annual business renewal with the Division of Corporations. $18, and your entity can be dissolved if it lapses long enough.

Extensions extend the paperwork, not the payment. If you owe, the money is still due on the original date.

What this looks like with a bookkeeper

For my monthly clients, almost everything on this list is already done by December because reconciliations happen every month and contractor W-9s get collected the first time someone is paid. Year-end becomes a short review instead of a project. If your books are not there yet, the intake on the next page asks the handful of questions I need to tell you how long cleanup would take and what it would cost. Monthly bookkeeping starts at $50 and cleanup is $150 an hour, all published on the pricing page.

Questions people ask

Do I still need to send a 1099 for a contractor I paid $1,500 in 2026?

No. For payments made in 2026 and later, the reporting threshold for Form 1099-NEC is $2,000 for the year. Under $2,000 you do not file, though the contractor still owes tax on the income and it is still a deductible expense for you.

When are Utah business returns due for the 2026 tax year?

April 15, 2027 for calendar-year filers, and that covers individual TC-40, partnership TC-65, S corporation TC-20S, and corporation TC-20 returns. The federal partnership and S corporation returns are due a month earlier on March 15, 2027.

What happens if I cannot get my books cleaned up before December 31?

Nothing bad happens on January 1. The books can be cleaned up in January or February and still be ready for a March or April filing. The point of starting now is cost and accuracy: a cleanup done with fresh memory and no deadline pressure is faster and cheaper.

Does an extension give me more time to pay?

No. A federal or Utah extension gives you more time to file the return. Any tax you owe is still due on the original deadline, and interest and penalties run from that date.

Sources

• IRS, Instructions for Forms 1099-MISC and 1099-NEC
• Sovos, One Big Beautiful Bill raises 1099 reporting thresholds to $2,000
• IRS, Estimated taxes
• Utah State Tax Commission, April 15, 2027 due dates
• Utah Division of Corporations and Commercial Code, annual renewals