Construction Bookkeeping Services for U.S. Contractors
Job costing errors and subcontractor payment tracking are eating your time. Twelix fixes your books so you can focus on building, not bookkeeping.
Mistakes construction owners make with their books
These aren't rare edge cases — they show up in almost every new client account we onboard.
Mixing job costs across projects
No visibility into which jobs are profitable and which are losing money
We set up dedicated job costing so every dollar is allocated to the right project
Forgetting to track retainage
Cash flow surprises when 5-10% of contract value is withheld for months
We track retainage receivable and payable on every contract
Missing 1099 filings for subcontractors
IRS penalties and potential audit triggers
We track all sub payments and prepare 1099s at year-end
Are these showing up in your books right now?
Get a Free Books ReviewWe'll tell you exactly what we find — no charge.
Construction Bookkeeping Challenges
Job Costing Complexity
Tracking costs across multiple jobs, change orders, and phases requires specialized accounting methods.
Progress Billing
Percentage-of-completion billing creates revenue recognition challenges that general bookkeepers miss.
Subcontractor Tracking
1099 compliance, lien waivers, and payment tracking for dozens of subs is a full-time job.
Retainage Management
Tracking retainage held and owed across multiple projects requires specialized accounts.
Our Construction-Specific Services
Twelix assigns you a bookkeeper with deep construction expertise. Not a generalist — a specialist who knows your business model.
Numbers that actually tell you how your construction business is performing
If your current books can't surface these, you're flying blind.
Job Profitability
Revenue minus all costs per job
Identifies which projects are making or losing money
Cash-to-Billings Ratio
Cash collected vs. invoices sent
Tracks how quickly you are getting paid
Backlog Value
Total contracted work not yet completed
Forecasts future revenue pipeline
Your bookkeeper should be surfacing these every month.
See How We ReportTools We Work With
Construction tax deductions our bookkeeping service tracks for you
These write-offs are built into how we categorize your expenses from day one — so nothing slips through at tax time.
Equipment & Vehicles
Section 179 deduction for heavy equipment, trucks, and trailers
Safety Equipment
Hard hats, vests, PPE, and OSHA compliance costs
Permits & Licenses
Contractor licenses, building permits, and bonding costs
Fuel & Mileage
Gas, diesel, and mileage for job-site travel
Tools & Supplies
Hand tools, power tools, consumable materials
Materials & Supplies
Lumber, concrete, electrical, plumbing — all deductible project costs
Every one of these is included in how we run your books.
See What's Included in Your PlanFlat monthly rate · No contracts · Start in 48 hrs
Why Construction Businesses Choose Twelix
We don’t just keep your books — we give you the financial clarity to run your construction business with confidence.
Bookkeepers with construction industry experience and job costing expertise
Per-project profitability reporting every month
Subcontractor 1099 tracking and year-end preparation
Retainage accounts managed accurately across all active projects
24-hour response time on all communications
Construction Bookkeeping FAQ
Yes. We track costs, revenue, and profitability for every active project individually.
We track all subcontractor payments throughout the year and prepare 1099s for filing.
We maintain separate retainage receivable and payable accounts and reconcile them monthly.
We integrate with Procore, Buildertrend, and other construction management platforms alongside QuickBooks or Xero.
Yes. We manage percentage-of-completion and progress billing entries according to construction accounting standards.
What our construction bookkeeping service covers — already
These aren't questions you need to bring to a meeting with us. They're already built into how our service works.
We track profitability at the job level
Every project gets its own cost tracking — labor, materials, and subs — so you always know which jobs are making money and which aren't.
We reconcile subcontractor payments and prepare 1099s
All subcontractor payments are tracked throughout the year and properly flagged so 1099 filing is handled cleanly every January.
We categorize equipment costs correctly — expense vs. depreciate
Tools and equipment are correctly classified as immediate expenses or depreciable assets based on cost threshold and IRS rules.
We separate direct job costs from overhead
Materials, labor, and equipment costs are tracked per job. Overhead like rent and admin are kept separate — so your job-level margins are real.
We track retainage and progress billing
Retainage receivable and progress billing are recorded correctly — not as income until they're actually earned.
All of the above is already built into every Twelix engagement — and we can show you on your first call.
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Ready to Fix Your Construction Books?
Book a free consultation. We will review your situation and give you a firm quote within 24 hours. No sales pressure.