A fleet of heavy equipment, crews running across multiple sites, and fuel that may or may not qualify for a tax credit depending on what it's powering — we handle the accounting specific to site work and earthmoving, so you can focus on the dirt.
Excavating and site work companies run on the heaviest equipment investment of any trade business, and the work itself is priced and billed differently than most contracting — by volume of material moved, site conditions, and the permitting and erosion control requirements specific to each parcel. On top of that, fuel used in off-road equipment may actually qualify for a tax credit that on-road vehicle fuel doesn't, which is a distinction most companies aren't tracking separately.
At Mercer Flanagan, we've worked with excavating and site work companies in Frederick and surrounding counties for over 50 years. We know how to track costs across multiple active sites. We know which fuel actually qualifies for a credit. And we're here year-round — not just in April.
"The excavating companies that come to us usually have the same blind spot: they're running three or four sites at once, but their books treat it as one blended business. They can tell you the company made money this quarter — they can't tell you which site actually earned it."
We work with:
These are the situations we hear about most often from new excavating clients.
Running multiple sites at once without job costing means you can't tell which jobs are actually profitable. We set up cost tracking by site so pricing the next bid is based on real numbers, not a feeling.
Fuel used in equipment that never touches a public road can often qualify for a federal fuel tax credit. Most companies aren't separating this fuel from on-road vehicle fuel in their records, which means the credit goes unclaimed.
A fleet of excavators, dozers, and loaders represents significant capital investment. Timing a purchase against your income for the year, using Section 179 or bonus depreciation, can mean a substantially larger deduction.
Grading permits and erosion control costs can be significant on larger sites. Lumping these into general overhead instead of tracking them by job makes future bids less accurate.
Many established owners are still operating as a sole proprietor well past the point where an S-Corp election would meaningfully reduce self-employment tax. We evaluate this for every new client.
Working as a subcontractor under general contractors, or hiring your own subcontractors, creates 1099 and insurance documentation requirements that are easy to fall behind on across multiple active jobs.
How your business is structured has a bigger impact on your tax bill than almost any other single decision. Here's how the common options compare for excavating and site work companies.
| Structure | Self-Employment Tax | Admin Complexity | Best For |
|---|---|---|---|
| Sole Proprietor / Single-Member LLC | 15.3% on all net income | Lowest | New or very small excavating operations |
| S-Corporation | Only on reasonable salary | Moderate | Established companies earning $80K+ net |
| Partnership / Multi-Member LLC | Can be high | High | Companies with multiple owners |
The right answer depends on your income level, how many employees you have, and whether you have business partners. We analyze this for every new client. Read our S-Corp vs. LLC guide →
We set up job costing that tracks labor, fuel, equipment time, and material costs by site, so you can see which jobs are actually profitable instead of relying on a blended company-wide number.
QuickBooks Support & Training →We help set up fuel tracking that separates off-road equipment fuel from on-road vehicle fuel, so you can claim the federal fuel tax credit you're entitled to instead of leaving it unclaimed.
We help time and structure equipment fleet purchases to maximize Section 179 and bonus depreciation benefits based on your actual income for the year.
We evaluate your current structure, run the numbers on what an S-Corp election would save you, and handle the paperwork to make the switch if it makes sense. For many owners earning over $80,000 in net income, this is the highest-return tax move available.
S-Corp vs. LLC: Which Is Right for You? →We prepare your business return — Schedule C, Form 1120-S for S-Corps, or Form 1065 for partnerships — along with your personal Form 1040, including all schedule attachments.
Small Business Tax Services →We calculate your quarterly estimated payments based on your actual income and adjust as the year unfolds. No surprise April bills.
Tax Planning Services →If you need compiled financial statements for equipment financing, a bank loan, or bonding for a larger contract, we handle that. Clean, professionally prepared statements that lenders and bonding companies accept.
Financial Statement Compilations →These are the deductions that excavating and site work companies most often underutilize or miss entirely. Every situation is different, and eligibility depends on your specific circumstances, but these are worth discussing with us.
Deductibility always depends on your specific facts and circumstances. The IRS has specific rules about what qualifies, how to document it, and how to calculate it. We make sure you're capturing what you're entitled to — and that it's documented properly so it holds up if questioned.
Big firms want big corporate clients. We built our practice around the excavating contractors and tradespeople who are the backbone of Frederick County. You won't be handed off to a junior associate. You won't wait three weeks for a call back. You get a CPA who knows your name and your situation.
Year Mercer Flanagan was founded in Frederick, MD
Years serving local professionals, businesses & nonprofits
Rated by clients across Frederick County
Access to your CPA — not just during tax season
Year-round access to your CPA. Questions get answered when you have them, not weeks later.
We understand how to track profitability across multiple active job sites at once.
We're based in Frederick, MD. We know this community and we're not going anywhere.
We don't just file your returns. We contact you when something changes that affects your tax situation.
Book a free 20-minute consultation. We'll tell you honestly whether we can help — and what it would cost. No pressure, no obligation.
Book a Free Consultation