Project-Level Books for
Contractors & Builders
Offshore bookkeeping professionals who understand job costing, subcontractor payments, progress billing, and the real complexity behind construction revenue — so your per-project profitability numbers actually mean something.
Why Construction Bookkeeping Breaks Standard Accounting Workflows
A traditional business records revenue, expenses, and payroll in a fairly linear way. Construction businesses deal with multiple active projects simultaneously, each with its own budget, billing schedule, subcontractor list, materials account, and labor cost — all running in parallel and closing at different times.
A single month might include progress billings on three active jobs, retainage withheld on two completed projects, subcontractor invoices across five vendors, material deliveries that straddle billing periods, and payroll spread across different job sites. Record all of that at the company level without job-level structure, and your profit and loss statement tells you nothing useful about which projects are actually making money.
This is the gap most contractors don't discover until a job that felt profitable finishes with lower margin than expected — or until a draw request is delayed because the billing records don't reconcile cleanly with the contract.
Job Costing Gaps
Without job-level cost tracking, expenses pool at the company level and make it impossible to see which projects are on budget and which are quietly burning margin.
Subcontractor Complexity
Tracking subcontractor payments across multiple jobs, managing lien waivers, and preparing year-end 1099s requires a structured workflow most general bookkeepers don't have.
Progress Billing & Retainage
Construction billing rarely matches a simple invoice cycle — partial payments, retainage holds, and draw requests each need to be recorded and reconciled separately.
Materials & Equipment Costs
Supplies delivered to one job, equipment shared across three projects, and vendor bills arriving weeks after the work — all need to land in the right job cost record.
Multi-Site Payroll Allocation
Labor costs need to be allocated by job site and phase, not just recorded as one payroll expense, if project profitability is to reflect what was actually spent on each job.
Project Profitability Visibility
Without clean job-level records, end-of-project reviews are guesswork — and there's no reliable baseline for pricing similar jobs more accurately next time.
Standard Bookkeeping Was Not Built for How Construction Works
Generic bookkeeping workflows are designed for businesses with consistent monthly revenue and expenses. Construction operates on project cycles, draw schedules, and retainage terms that don't fit that model at all.
No Job Cost Structure
General bookkeepers record expenses to broad categories — not to specific jobs, phases, or cost codes. That means profit reports show a company total, not a project breakdown.
Progress Billing Is Mishandled
Partial billings and retainage require specific accounting treatment. Without it, accounts receivable records overstate what the business has actually earned and collected.
Subcontractor Payments Are Lumped Together
Payments to subcontractors across multiple jobs get combined into one expense line, eliminating any ability to see which projects those costs belong to.
Month-End Close Drags
Without a structured construction bookkeeping process, month-end becomes a scramble to match bills to jobs, track down missing subcontractor invoices, and reconcile draw accounts.
Construction Bookkeeping Services We Provide
Every service is built around how construction businesses actually operate — project cycles, subcontractor chains, draw schedules, and job-level reporting requirements.
Job Costing
Labor, materials, subcontractor, and equipment costs tracked by individual job and phase so profitability is visible at the project level, not just company-wide.
Monthly Bookkeeping
Consistent monthly transaction recording, expense categorization, and account reconciliation across all active projects and your main operating accounts.
Bank Reconciliation
Operating accounts, payroll accounts, and draw accounts reconciled monthly so your cash position is accurate and every transaction is accounted for.
Accounts Payable
Subcontractor invoices, material supplier bills, equipment rental fees, and overhead costs recorded and allocated by job with payment status tracked.
Accounts Receivable
Progress billings, retainage receivables, and customer deposits tracked by contract so your outstanding balance reflects what has been earned and what remains to be collected.
Payroll Accounting Support
Payroll journal entries recorded and labor costs allocated to individual jobs, supporting accurate per-project labor expense tracking alongside your payroll processor.
Financial Reporting
Monthly profit and loss, balance sheet, and job-level cost reports delivered so you can review project performance and business health together, not separately.
Catch-Up & Cleanup Bookkeeping
Behind on your construction books We bring historical records current, reorganize job cost allocations, and prepare a clean baseline for ongoing monthly bookkeeping.
Construction Bookkeeping Built Around Your Project Workflow
Every construction business operates differently. Our team adapts the bookkeeping structure to your project types, billing cycles, and subcontractor relationships.
Subcontractor Payment Tracking
Every subcontractor payment recorded by job and vendor, with year-end 1099 preparation records maintained throughout the year — not reconstructed at tax time.
Progress Billing Reconciliation
Draw requests, partial billings, and retainage receivables reconciled against contract values so your billing records match your project completion status.
Materials & Equipment Cost Tracking
Supplier bills and equipment expenses allocated to the correct job and phase so material costs land in project records rather than a general expense account.
Project Profitability Reporting
Job-level cost reports comparing actual spend to contract value so you can see whether each project is tracking on budget before it closes — not after.
Credit Card & Supplier Reconciliation
Company credit cards and supplier accounts reconciled monthly with costs allocated to individual jobs, keeping expense records clean across multiple active projects.
Multi-Market Compliance Support
Bookkeeping structured for USA, Canada, and Australia tax environments, with jurisdiction-specific payroll treatment and GST/HST handling where applicable.
What Construction Businesses Gain From Outsourced Bookkeeping
Winning more projects doesn't automatically mean higher profit. Accurate construction bookkeeping is what shows you which jobs are actually worth taking — and which are quietly costing you margin.
Cleaner Job Cost Records
Every labor, material, subcontractor, and equipment cost lands in the right project — not pooled into a general expense account that tells you nothing about individual job performance.
Better Project Profitability Insight
Job-level reports show you whether each project is tracking to budget or bleeding margin — before the job closes, not after the final invoice is paid.
Stronger Cash Flow Control
Cleaner billing records, reconciled draw accounts, and tracked receivables give you an accurate picture of what cash is coming in and when — not a guess from your bank balance.
Faster Month-End Close
A structured construction bookkeeping process means reports are ready faster, with fewer missing bills and less time chasing down which cost belongs to which job.
CPA-Ready Records
Clean, job-organized books mean your tax advisor focuses on deductions and strategy rather than sorting out which expense went to which project at year end.
USA, Canada & Australia Coverage
Multi-jurisdiction payroll treatment, GST/HST tracking, and market-specific compliance handled by one bookkeeping team trained across all three markets.
Project-Aware Bookkeeping vs. Generic Small Business Bookkeeping
Not every bookkeeping provider understands construction project cycles. Here's what separates a project-aware process from a generic one.
| Comparison Factor | Generic Bookkeeping | OneTrust Bookkeeping |
|---|---|---|
| Job cost tracking | Company-level totals only | ✓ Tracked by project and phase |
| Subcontractor payments | Lumped into one expense line | ✓ Tracked by job and vendor |
| Progress billing | Recorded as standard invoices | ✓ Reconciled by contract value |
| Retainage handling | Often missed or misclassified | ✓ Tracked as separate receivable |
| Materials & equipment costs | Posted to general expense | ✓ Allocated by project |
| Payroll labor allocation | One payroll expense total | ✓ Split across active job sites |
| Multi-market expertise | One jurisdiction | ✓ USA, Canada, Australia |
| Contract structure | Fixed packages, rigid scope | ✓ Month-to-month, scales with project load |
*Pricing depends on number of active projects, transaction volume, and reporting complexity. Contact us for a personalized estimate.
Our Construction Bookkeeping Process, Step by Step
A structured five-step engagement model designed to fit into your existing construction operations without disrupting active projects or billing cycles.
Discovery
We review your active projects, billing schedules, subcontractor setup, accounting software, and current bookkeeping gaps.
Account Review
We assess your chart of accounts, job cost structure, existing project records, and reconciliation status across all active accounts.
Workflow Setup
We align your project list, subcontractor records, billing cycles, and bank accounts with a bookkeeping structure built for construction.
Monthly Bookkeeping
Recurring job costing, subcontractor bill recording, bank reconciliation, payroll allocation, and account management on a consistent monthly cycle.
Reporting & Refinement
Clean monthly financials and job cost reports delivered, with workflows refined as your project load grows or your reporting requirements evolve.
Construction Bookkeeping Support for Contractors & Building Trades
Different contractor types have different bookkeeping needs. Our team adapts the job costing and reconciliation approach to how your trade actually operates.
HVAC Contractors
Job costing for service calls and installations, technician payroll, supplier bills, and seasonal cash flow management.
Plumbing Contractors
Materials and supplier bills, technician payroll, emergency service revenue, and customer invoice tracking by job.
Electrical Contractors
Project costing, labor and materials tracking, permit costs, and commercial and residential project reporting.
Roofing Contractors
Job costing, customer deposits, insurance-related project records, subcontractor payments, and seasonal cash flow tracking.
Also supporting general contractors, landscaping businesses, and specialty trades. View all industries →
We Work Inside the Platforms Your Construction Business Already Uses
No forced migrations or new tools required. Our team works directly inside the accounting and project management software you're already running.
QuickBooks
Online & Desktop. Job cost tracking, class reporting by project, and subcontractor payment management built in.
Xero
Project-level tracking categories and multi-currency support for construction businesses across multiple markets.
Buildertrend
Construction project management integration support for companies using Buildertrend alongside their accounting software.
CoConstruct & Jobber
Field service and construction project tracking platforms supported alongside QuickBooks and Xero for trade contractors.
Also supporting ServiceTitan, Housecall Pro, Procore, and other construction and field service platforms. View all software expertise →
What Makes Our Construction Bookkeeping Different
Most bookkeeping providers treat construction like any other small business. OneTrust Bookkeeping starts from the project side — because a monthly profit total was never the whole story.
We Cost Jobs, Not Just Companies
Every expense is allocated to the correct project and phase before it's recorded — not posted to a general category that loses the job connection entirely.
Project-Level Visibility, Not One Blended Report
Revenue, costs, and margin are tracked separately by project, so you know which jobs are profitable and which need attention — before they close.
Subcontractor Complexity Is Our Standard Process
We track subcontractor payments by job and vendor from day one, keeping 1099 records current and lien waiver documentation organized throughout the year.
Named Bookkeeper, Senior Review Layer
You work with one dedicated bookkeeper who knows your projects — supported by a senior review layer that checks work before reports are delivered.
Built for USA, Canada & Australia
Multi-jurisdiction payroll, GST/HST, and market-specific compliance requirements handled by one team trained across all three construction markets we serve.
Monthly Reports You Can Actually Use
Clean financials and job cost summaries delivered on a consistent cycle — not a data dump that requires hours of interpretation before it's useful.
Explore More from OneTrust Bookkeeping
Construction bookkeeping connects across several core services. Explore the ones most relevant to how your business operates.
Accounting Outsourcing
Full-scope offshore accounting support for construction businesses that need more than monthly bookkeeping.
Bank Reconciliation
Operating, payroll, and draw accounts reconciled monthly so your cash records match what's actually in the bank.
Accounts Payable
Subcontractor and supplier bills recorded by job and managed for timely payment across all your active projects.
Financial Reporting
Monthly project profitability and company-level financials delivered together so you see the full picture in one place.
Construction Bookkeeping Services — Frequently Asked Questions
Build Cleaner Construction Books With OneTrust Bookkeeping
Contractors and construction businesses trust OneTrust Bookkeeping for job costing, subcontractor payment tracking, progress billing reconciliation, and monthly project profitability reporting. Schedule a consultation and see how clean, project-organized books change the way you manage your business.