Construction Contractors — How to Stop Leaving Money on the Table at Tax Time

Construction and contracting businesses in West Tennessee have some of the most complex tax situations of any industry. Between job costing, equipment depreciation, subcontractor management, and cash flow swings, there's a lot that can go wrong — and a lot of opportunities that get missed.

Whether you're a general contractor, electrician, plumber, HVAC tech, or specialty subcontractor, here's what your CPA should be looking at.

Track Costs by Job, Not Just by Month

If you're lumping all your expenses together without tracking them by individual job, you don't actually know which projects are making money and which ones are losing it. Job costing isn't just an accounting exercise — it's how you make smarter bids, identify problem projects early, and know your true profit margins.

We help our contractor clients set up simple job costing systems in QuickBooks that give them real-time visibility into every active project.

Don't Sleep on Equipment Depreciation

That truck, trailer, excavator, or set of tools you bought this year? Thanks to the One Big Beautiful Bill Act (signed July 2025), 100% bonus depreciation is back — permanently. That means you can deduct the full purchase price of qualifying equipment in the year you put it into service. For a contractor who buys a $60,000 truck, that's the entire cost written off in year one. Combined with Section 179 expensing, the deduction opportunities for equipment-heavy businesses like construction are massive. Talk to your CPA before making big purchases so you time the deductions for maximum impact.

The 1099 Subcontractor Trap

Using subcontractors is standard in construction. But you need to be issuing 1099-NEC forms to every sub you pay $600 or more in a calendar year. If you don't, the IRS can disallow the deduction for those payments — and you could face penalties. We've seen contractors lose tens of thousands in deductions because they didn't file 1099s.

Also make sure your subs are actually subs and not misclassified employees. If you control when, where, and how they work, the IRS may say they're employees regardless of what your contract says.

Quarterly Estimated Taxes Are Non-Negotiable

Construction income is lumpy. You might collect $80,000 in June and $15,000 in January. If you're not making quarterly estimated tax payments, you'll owe a huge lump sum plus underpayment penalties in April. We calculate estimated payments for our contractor clients based on their projected annual income so there are never any tax-time surprises.

Review Your Entity Structure

Many contractors start as sole proprietors because it's simple. As your business grows, the question of entity structure comes up — should you form an LLC? Should you elect S-Corp taxation? The answer depends on your specific income, debt, and Tennessee tax situation. We covered this in detail in our LLC vs S-Corp article, but the short version: we usually recommend LLCs for Tennessee contractors, with S-Corp as a possibility when the numbers clearly support it. If you haven't reviewed your structure lately, it's worth a conversation.

Contractors and construction business owners are some of our favorite clients to work with. You build things. We build financial strategies. If you're in Jackson, Madison County, or anywhere in West Tennessee, let's talk about how to keep more of what you earn.

See how we help contractors on our industries page or book a free consultation.