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    BusAcTa Advisors, Business Accounts and Tax Advisors
    AEC & Project-Based Services

    Project-Aware Accounting for Engineering & Construction

    Percentage-of-completion accounting, WIP schedules, job costing, and surety-ready reporting, built for AEC firms and project-based engineering practices.

    Talk to an AEC CPAExplore Solutions

    40+

    AEC Firms Served

    WIP

    Schedules Standard

    AIA

    Billing Native

    Surety

    Ready Year-Round

    We Know Your Job Site

    The Financial Realities of Project-Based Work

    Engineering and construction firms face job-cost discipline, percentage-of-completion accounting, and surety scrutiny no generic bookkeeper handles well.

    Revenue Recognition

    Percentage-of-Completion

    ASC 606 input/output methods drive revenue recognition, and the WIP schedule is the surety's first ask.

    Job Cost

    Job Costing & Cost-to-Complete

    Estimates of costs to complete drive earned revenue, gross margin, and the over/under-billing entry each month.

    Billing

    AIA Billing & Retention

    Pay applications, retention, and lien waivers must reconcile every cycle with general contractors.

    Surety

    Surety Bonding & Reporting

    Bonding capacity depends on clean WIP, working capital, and CPA-reviewed annual financials.

    Payroll

    Union, Davis-Bacon & Certified Payroll

    Prevailing wage rules, fringe rates, and certified payroll reports drive payroll complexity.

    Compliance

    Lender & Bonding Compliance

    Working capital ratios, debt covenants, and bonding line reviews demand current financials.

    Tailored Solutions for AEC

    Job-Aware Accounting for Engineering & Construction

    Every service is purpose-built for the project-based, milestone-driven realities of AEC operations.

    Percentage-of-Completion & WIP

    Maintain a defensible WIP schedule each period: earned revenue, over/under-billings, and gross margin per job.

    Per-Job WIP Schedule: Building the schedule of contracts in progress with revised estimates each close.
    Over/Under-Billings Entries: Posting the period's over- and under-billings adjustments correctly.
    Gross Margin Discipline: Surfacing margin fade early, before it eats the bonding line.

    Job Costing in Sage / Foundation / Procore

    Maintain job-level costs against budget, change orders, and committed costs in your construction ERP.

    Cost Code Discipline: Posting labor, material, equipment, and subcontract costs to the right cost codes.
    Committed Cost Tracking: Tracking POs and subcontract commitments against contract budget.
    Change Order Management: Posting approved and pending change orders correctly to keep margin reporting accurate.

    AIA Billing & Retention Tracking

    Manage pay applications, retention, lien waivers, and the cash cycle with general contractors and owners.

    AIA Pay Applications: Producing G702 / G703 pay applications and tracking against schedule of values.
    Retention Receivables: Tracking retention by job and aging through final acceptance.
    Lien Waiver Coordination: Maintaining conditional and unconditional lien waiver records.

    Surety & Bonding Reporting

    Maintain the WIP, working capital, and CPA-reviewed financials your bonding agent and surety expect.

    Surety Reporting Packages: Producing the quarterly WIP and financial packages bonding agents review.
    Working Capital Discipline: Monitoring current ratio, working capital, and equity to support bonding capacity.
    Annual CPA-Reviewed Prep: Maintaining audit-ready books that CPA reviews and audits proceed cleanly each year.

    Certified Payroll & Prevailing Wage

    Calculate prevailing wage and fringe rates correctly and produce certified payroll reports for public-works jobs.

    Davis-Bacon Compliance: Calculating prevailing wage rates and fringe benefit equivalents per job classification.
    Certified Payroll (WH-347): Producing weekly certified payroll reports for federal and state public-works jobs.
    Union Reporting: Producing union benefit and dues remittance reports per CBA requirements.
    The BusAcTa Advantage

    Why AEC Firms Choose Our Team

    AEC finance runs on job-cost discipline, percentage-of-completion fluency, and surety awareness. Our team works in all three, handling the accounting and bookkeeping behind every WIP schedule and job-cost report.

    WIP-First Discipline

    Every close ends with a clean WIP schedule and explained over/under-billings, not a fire drill.

    MonthlyWIP Cadence

    Surety-Aware Books

    Bonding agents and sureties get the reports they expect, on the cadence they expect.

    100%Surety Ready

    Cost-Effective Scaling

    Project capacity without project-staffed back-office headcount.

    55%Cost Savings

    AEC-Native Team

    Sage 100/300 Construction, Foundation, Procore, and QuickBooks Contractor: daily work.

    150+AEC Clients
    Your AEC Stack, Integrated

    We Work Inside the Tools Your Job Sites Already Use.

    From construction ERPs to project management to AIA billing, we plug into the platforms AEC teams already trust.

    Construction ERP

    • Sage 100/300 Construction
    • Foundation
    • Viewpoint Vista
    • QuickBooks Contractor

    Project Mgmt

    • Procore
    • Buildertrend
    • CoConstruct

    Accounting

    • QuickBooks Online
    • Sage Intacct Construction
    • Xero

    Payroll

    • Gusto
    • ADP
    • Paychex
    • Foundation Payroll
    FAQs

    Questions About AEC Accounting

    What owners, controllers, and CFOs ask before outsourcing engineering and construction back-office.

    Still have questions? Contact us
    POC / WIP
    Job Cost
    AIA Billing
    Surety
    Certified Payroll
    Lender Reporting

    Let's Talk

    Run the Job Site. We'll Run the Back-Office.

    Schedule a call with our AEC leads. We'll review your project mix and show you how to industrialize WIP, billing, and bonding workflows.

    Free, no-obligation consultation
    Percentage-of-completion and WIP fluency
    AIA billing and retention expertise
    Surety-ready books year-round
    30-day risk-free pilot available

    AEC Inquiry

    Reply within one business day

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