Construction Companies
A job can look profitable right up until the budget runs out in month nine. Maspartner builds job costing and WIP schedules that catch overbilling and margin erosion while there’s still time to fix it.
About Construction Accounting
Construction accounting runs on rules that standard small business bookkeeping was never built to handle. Contracts over the IRS receipts threshold require percentage-of-completion revenue recognition, and even well below that threshold, accurate work-in-progress (WIP) reporting depends on tracking earned revenue against billed revenue by job and cost code — the core of real construction job costing. Certified payroll on prevailing-wage, Davis-Bacon, and government-funded work adds a compliance layer, with weekly
WH-347 reporting
certified payroll reporting and multi-state wage rules that a generic payroll run cannot produce.
Maspartner provides construction accounting and construction bookkeeping services for general contractors, specialty trade subcontractors, remodelers, homebuilders, and land developers. Our clients typically run on QuickBooks Online with construction add-ons, Sage 100 Contractor, Sage 300 CRE, Foundation, or Procore paired with an accounting backend, and we build our construction accounting process around whatever platform they already use rather than forcing a switch.
Services We Provide
Job Costing
WIP Reporting
Progress Billing (AIA)
Retainage Tracking
Certified Payroll
Committed Cost Tracking
Change Order Management
Multi-State Tax Compliance
The Problems We Solve for Contractors.
Overbilling that hides a job going underwater
We generate monthly WIP schedules in construction accounting that compare earned revenue to billed revenue by job, so overbilling gets flagged while there’s still time to act.
Job costs that don't tie back to the project
We track costs and revenue at the job and cost-code level, giving you accurate construction accounting data to see which projects are profitable and which need attention before closeout.
Retainage that gets lost between AP and AR
We track retainage separately on both sides of the ledger, so what’s owed to you and what you owe stays visible at any point.
Certified payroll gaps that surface during a compliance audit
Our construction accounting services include certified payroll support matched to the correct wage determinations, helping reduce compliance issues before they become audit findings.
Change orders that never make it into the budge
We record every change order in the job budget as it happens, so your construction accounting reports reflect the job as actually built, not just as originally scoped.
Benefits of Construction Accounting Services
Understand the True Profitability of Every Job
Keep Certified Payroll Accurate
Plan Cash Flow with Confidence
Spend More Time on the Job Site
Support Growth Without Changing Your Process
Beyond offering services, we complement your journey with our commitment to Satisfaction
Why Mercurius?
100+ Ratings on Google
Experience the services that’s earned us top ratings.

In-house Remote Bookkeepers
Our professionals are highly qualified and experienced in diverse bookkeeping practices.

Technology-Driven
Technology-Driven Utilize the latest bookkeeping software and tools for accurate and efficient financial management.

Strong Industry Expertise
Our experience across various industries enables us to have a better understanding of your business’s unique challenges and requirements.

Tailored Solutions
We offer customized bookkeeping services that align perfectly with your business needs.
Software Expertise
Other Industries We Serve
Mercurius delivers precise financial solutions backed by industry expertise, ensuring accurate and reliable results across all sectors.

Ecommerce and Retail

Accounting, Tax and CPAs

Law firms and Attorneys

Real Estate and Construction

Education and Coaching

IT and SaaS
Client Testimonials
Great work – love the dedicated member of the team that is assigned to work on my account.
Graham Blair
Habitat Seven Inc 🇨🇦
Manvi and the team at Mercurius are excellent. We have been working with them for a number of years and they have been pivotal in keeping our accounts in good order.
Cameron Kincaid
Chemeyes Ltd 🇬🇧
Siddhartha is delightful to work with and always completes assignments ahead of schedule and with no iteration needed.
Mike Schoenfeld
MBS Consulting🇺🇸
Pleasant to work with, knowledgeable on accounting principles, responsive
Christine Atieno
Keys Please Homes🇺🇸
Sid and his team so excellent work – on time and very attentive to detail.
Joel Cape
Joel E Cape, PLC🇺🇸
Seeking custom services?
Drop your email, and we’ll get in touch, or contact us directly.
Legal Practices We Support
GENERAL CONTRACTORS | SPECIALTY TRADE SUBCONTRACTORS | RESIDENTIAL HOMEBUILDERS | COMMERCIAL BUILDERS | REMODELING AND RENOVATION CONTRACTORS | LAND DEVELOPERS | HEAVY CIVIL AND INFRASTRUCTURE CONTRACTORS | MECHANICAL, ELECTRICAL, AND PLUMBING (MEP) CONTRACTORS | ELECTRICAL CONTRACTORS | PLUMBING CONTRACTORS | HVAC CONTRACTORS | ROOFING CONTRACTORS | GOVERNMENT AND PREVAILING-WAGE CONTRACTORS
FAQs
Why does a job look profitable, but the cash keeps running out?
Overbilling can make a project appear more profitable than it really is because billed revenue may be higher than earned revenue. A proper construction accounting process uses WIP reporting to compare earned and billed revenue, helping contractors identify overbilling early and avoid unexpected cash flow problems.
How do I find out which jobs are actually losing money?
Company-level financial reports can hide losses on individual projects. Job costing tracks labor, materials, subcontractors, and other expenses by project and cost code, while construction accounting gives contractors a clearer view of which jobs are profitable and which need attention.
Why does retainage keep throwing off my cash flow projections?
Retainage can make cash flow difficult to predict because amounts held by customers and amounts withheld from subcontractors often move on different schedules. Accurate construction accounting tracks retainage separately from regular receivables and payables so expected collections and outstanding obligations remain visible.
What does outsourced construction accounting typically cost?
The cost of outsourced construction accounting services depends on factors such as active job volume, company size, reporting needs, certified payroll, and multi-state compliance. A small contractor generally requires less support than a general contractor managing several projects across different states, so pricing is usually based on actual workload.
Is it safe to outsource construction accounting?
Yes, when the provider uses secure systems, controlled permissions, and documented audit trails. Maspartner delivers construction accounting within your existing software environment, using appropriate access levels while keeping transactions, adjustments, and financial activity transparent and traceable.
Our Case Studies
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INTRODUCTION In October 2019, a U.S.-based real estate investor engaged our firm to support the…
Strengthening Financial Accuracy Across Bookkeeping Processes
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Streamlining Financial Operations and Invoicing for Scalable Growth
INTRODUCTION In March 2024, a U.S.-based clean energy company approached us for professional bookkeeping support.…
Restoring Financial Accuracy Across Multi-Entity Accounting
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Restoring Financial Accuracy in QuickBooks Online
INTRODUCTION A growing business managing vehicle rentals and a Shopify-based equipment store approached us for…
Streamlining Bank Reconciliations in Cetec ERP
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Restoring Accuracy Through Comprehensive Record Cleanup
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