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Construction   Trades   Service

You built
something
real.

The numbers should show it. Accounting built for general contractors, subcontractors, and service trades across all 50 states.

Schedule a Call
100%Construction and trades accounting
50States served, accounting and tax
6Services, first build to final exit

What we do

Six services for the trades.

  • WIP schedule preparation
  • Cost-to-complete analysis
  • Overbilling and underbilling review
  • Estimate vs. actual variance

Know exactly where every job stands financially before it closes. We build and maintain WIP schedules that give you an accurate picture of profitability at each stage so you stop finding out a job lost money after it is done.

  • Job-level P&L
  • Subcontractor tracking
  • Retainage accounting
  • AIA billing support

Construction bookkeeping is not general bookkeeping. We maintain your books using construction-specific methods including job-level profit and loss, retainage tracking, subcontractor liability, and AIA billing formats so your financials are accurate and bonding-ready at all times.

  • Certified and prevailing wage
  • Multi-state payroll
  • Union reporting
  • 1099 subcontractor filing

Certified payroll and prevailing wage compliance are non-negotiable on public works projects. We process payroll across all 50 states, file WH-347 and state-specific certified payroll reports, handle union fringe benefit reporting, and keep you in good standing on every bid list.

  • Entity and owner returns
  • Equipment and depreciation strategy
  • Multi-state filing
  • Year-round tax planning

Construction tax planning requires understanding how job timing, equipment purchases, and entity structure interact. Our tax professionals prepare federal and multi-state returns for contractors and their owners, and work year-round to reduce your tax liability. We represent clients before the IRS on any tax matter, at any stage.

  • Bonding capacity support
  • Overhead rate calculation
  • Cash flow forecasting
  • Succession planning

A construction CFO without the full-time salary. We help you build bonding capacity, improve cash flow, price overhead correctly, and plan for what comes next whether that is growth, succession, or a sale.

  • Business valuation
  • Sale-ready financial cleanup
  • Buyer due diligence support
  • Transaction tax structuring

Most contractors leave money on the table at exit because their financials were not built with a sale in mind. We prepare construction businesses for market 24 to 36 months in advance by normalizing EBITDA, cleaning up job cost history, and structuring the transaction to preserve more at closing.

"

I ran my business for eleven years thinking I understood my financials. First month with Blackthorne Wicker they found a job I thought was profitable that had been bleeding for two years.

"

General Contractor · Phoenix, AZ

"

Our surety doubled our bonding capacity after six months of working with them. The financials they put together were a completely different product than what our old CPA was producing.

"

Electrical Contractor · Seattle, WA

"

We were trying to sell the business and our books were a mess. They cleaned up three years of financials in eight weeks and we closed the deal at the number we wanted.

"

Plumbing Contractor · Houston, TX

"

Certified payroll used to take my office manager two days a week. Now it's handled and we never miss a filing. Worth every dollar for that alone.

"

General Contractor · Miami, FL

How it works

Four steps. No disruption.

01

Schedule a call

02

We assess your books

03

We build your setup

04

Monthly, ongoing

Common questions

Answered.

Three regions

One firm. Coast to coast.

West Los Angeles, CA

1575 Westwood Blvd Ste 302‑2081
Los Angeles, CA 90024

+1 (310) 309-6666
Central Austin, TX

Austin, TX

+1 (512) 610-0684
East Wilmington, DE

800 N King St, Ste 304‑1761
Wilmington, DE 19801

+1 (302) 636-7454