Tax Services

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Contractor-Focused Tax Services

Construction taxes aren’t “small business taxes.” Between WIP timing, retainage, multi-state work, subs, equipment, and cash flow swings, most generic tax prep misses the real opportunities (and risks).

We work exclusively with general contractors, subcontractors, construction trades, engineering firms, and architectural practices — and we build tax services around how your projects actually run.

What We Do

Tax Preparation

Your return should reflect your business accurately — and hold up if anyone asks questions later.

Tax Planning

If your CPA only meets once a year, you’re missing the best part. Planning is where you reduce liability and avoid surprises — legally.

IRS Representation

Not every IRS notice is a disaster but ignoring one is. If you receive an audit notice, letter, or request, we step in as your representative, respond correctly, and help you get it resolved.

Common Problems We Help Contractors Solve

If any of these sound familiar, you’re not the only one — and they’re fixable.

Ready to Get Your Construction Numbers Under Control?

If your WIP, job costing, or cash flow feels out of control, you don’t need more noise, you need clean numbers and straight answers. We work with contractors, trades, engineers, and architects to fix the books, clean up WIP, and cut tax surprises so you can focus on running jobs.

Why Choose Us

Why Contractors Trust
d.f. o’brien & co.

We focus on contractors, trades, engineers, and architects only. With 40+ years in construction accounting, we give you clean numbers, straight answers, and bonding-ready financials you can rely on.

How We Help Contractors Succeed

Construction CPAs, Not Generalists

We work with contractors, trades, engineers, and architects every day not generic “small businesses.

40+ Years in Construction

Decades of field-tested experience with WIP, job costing, GAAP financials, bonding, and cash flow.

Clean, Bonding-Ready Numbers

Financial statements and WIP reports that match the field and keep your surety, bank, and owners confident.

Straight Talk & Plain-English Advice

No fluff, no corporate jargon, just clear explanations and a CPA you can reach when something breaks.