Year-End Tax Planning for Electrical Contractors in NC & SC (2026): Section 179, Bonus Depreciation & More

Why year-end tax planning matters more for electrical contractors

By the time you file in the spring, most tax-saving moves are already off the table. The last quarter of the year is when electrical contractors in North Carolina and South Carolina still have moves to make — buying equipment, timing income and retainage, funding retirement, and checking your S-corp setup — that can swing your 2026 tax bill by five figures. Here are the moves that matter most before December 31, 2026.

None of this replaces a talk with your CPA, but it tells you which questions to ask and which deadlines are hard stops.

1. Buy equipment and vehicles before December 31 (Section 179 + bonus depreciation)

If you've been putting off a new bucket truck, service van, trailer, or a batch of tools and test gear, the timing of that purchase is a tax decision. Two rules let you write off the cost the year the asset is put to work instead of spreading it over years:

• Section 179 expensing lets you deduct the cost of qualifying equipment right away. For 2026 you can expense up to $2,560,000, and the write-off only starts to shrink once you place more than $4,090,000 of property in service — well above what most shops buy in a year.
• 100% bonus depreciation is back and now permanent under the 2025 tax law (OBBBA) for qualifying property placed in service after January 19, 2025. That means no phase-down clock forcing you to rush.

The key phrase is “placed in service.” The asset has to be ready and in use in your business by December 31 — not just ordered or paid for. A van that's delivered and on the road December 30 counts for 2026; the same van sitting on the dealer lot until January does not.

Heavy work vehicles rated over 6,000 lbs (many cargo and service vans, and larger trucks) usually dodge the stricter car limits, which is why they're such a common year-end buy for electrical contractors. Keep the paperwork and log your business use.

One catch: a write-off only helps if you have profit to cover it, and Section 179 can't push your business into a loss. Don't buy gear you don't need just for the deduction — run it past your CPA against your real 2026 numbers first.

2. Fund a retirement plan — some deadlines hit December 31

Putting money into a retirement plan is one of the biggest deductions a profitable electrical contractor has, and it builds your own net worth instead of going to the IRS.

• Solo 401(k): the plan generally has to be set up by December 31, 2026 to make your own contributions for the year, even though you can fund it into 2027. If you want one for 2026, open it now.
• SEP-IRA: can be opened and funded up to your extended filing deadline in 2027 — a flexible backup if December gets away from you.

Which plan fits depends on whether you have W-2 employees and how your business is set up. Worth a quick call before year-end.

3. Check your S-corp salary and distributions

If you run as an S-corp, year-end is when you make sure your owner W-2 wages are reasonable and that payroll is run before the year closes. Getting the salary-vs-distribution split right is the heart of the S-corp tax savings, and it's hard to fix after December 31. Still deciding on structure? Start with our guide to S-Corp vs. LLC for electricians in NC & SC.

4. Time your income, expenses, and retainage

Most electrical contractors are on the cash method, which means you're taxed on what you actually collect and pay by December 31. That gives you two simple levers:

• Push income out: holding a late-December invoice a few days so the payment lands in January moves that income into 2027.
• Pull expenses in: prepaying insurance, materials, vehicle costs, or subs before year-end pulls those deductions into 2026.

Retainage adds a wrinkle. Retainage is the 5–10% a customer holds back until a job is done, and on the cash method you're not taxed on it until you actually receive it. Knowing exactly what's still owed also protects your winter cash flow — see Retainage & Cash Flow for Electrical Contractors in NC & SC. Before you make any timing moves, make sure your books show true job profit; our job costing guide shows how.

5. Check your estimated taxes

The fourth-quarter federal estimated payment is due in mid-January 2027, and North Carolina and South Carolina each want their own. A strong year can leave you underpaid; topping up your Q4 payment — or hitting the safe-harbor amount based on last year's tax — keeps you clear of underpayment penalties. Not sure how much to hold back? Start with How Much Should an Electrician Set Aside for Taxes?

6. Don't forget the everyday write-offs

Year-end is a good time to make sure you've caught the ordinary deductions too — tools, safety gear, licensing and continuing education, phone and software, and the home-office and mileage records that back them up. Our running list of tax deductions every electrician should know about is a good final sweep.

Your December 31 checklist

• Put any planned vehicles or equipment in service — delivered and usable, not just ordered.
• Set up a Solo 401(k) if you want one for 2026.
• Confirm S-corp owner payroll is run and reasonable.
• Decide which late invoices to push out and which expenses to pull in.
• Reconcile outstanding retainage and receivables.
• Line up your Q4 federal and NC/SC estimated payments.

Make your year-end moves count

Every one of these depends on your own numbers. At Division 26 CPA we work only with electrical contractors in the Carolinas, so we line these moves up against your real 2026 books before the year closes — not in April when it's too late. Book a tax strategy call and we'll map your specific situation to the NC and SC rules. The earlier in Q4, the more we can do.

This article is general information for electrical contractors in North Carolina and South Carolina, not tax advice for your situation, and 2026 figures can change — confirm your plan with your CPA before you act.