TL;DR — The Short Version
Outsourced accounting for contractors typically costs $500–$2,500 per month depending on scope, and it's almost always worth it. You get professional-grade bookkeeping, job costing, tax planning, payroll, and financial reporting — without the cost of a full-time employee. For contractors doing $500K+ in revenue, outsourced accounting usually pays for itself several times over in time savings, tax savings, and better business decisions.
What Does Outsourced Accounting for Contractors Actually Include?
Outsourced accounting is not the same as hiring a bookkeeper to enter transactions. A full-service outsourced accounting engagement for a contractor typically covers:
Monthly Bookkeeping
Weekly or monthly transaction processing, bank and credit card reconciliations, and general ledger maintenance. This is the foundation — and it needs to be done correctly to support everything else.
Job Costing
For contractors, job costing is non-negotiable. Every labor dollar, every material purchase, every subcontractor payment needs to be assigned to a specific project so you know your actual profitability on each job. Most generalist bookkeepers don't set this up correctly. See our full explanation of what makes construction bookkeeping different from regular bookkeeping.
Accounts Receivable & Invoicing
Tracking outstanding invoices, following up on overdue payments, and monitoring AR aging so you know exactly who owes you what — and when it's starting to become a problem.
Payroll Processing
Weekly or bi-weekly payroll for your crew, including tax withholdings, direct deposits, and all required filings. For contractors with prevailing wage work, this also includes certified payroll reports.
Subcontractor 1099 Management
Collecting W-9s from new subs, tracking payments throughout the year, and filing all 1099-NEC forms by the January 31st deadline. Miss these and you face IRS penalties plus risk losing your deductions in an audit.
Monthly Financial Reports
Profit and loss statements, balance sheets, job cost reports, and cash flow reports — delivered within 2 weeks of month-end, in a format you can actually understand and use.
Tax Planning Integration
The best outsourced accounting firms don't separate bookkeeping from tax strategy. Quarterly reviews with a CPA who understands your books is where $5,000–$25,000 in annual tax savings consistently gets found. See our resource on year-round tax planning for contractors.
How Much Does Outsourced Accounting Cost for a Contractor?
Pricing varies based on your revenue, transaction volume, number of employees, and the scope of services included. Here's a realistic range for Iowa contracting businesses:
Small Contractor ($250K–$750K Revenue)
Monthly outsourced accounting cost: $500–$1,000/month
Typically includes: bookkeeping, bank reconciliations, monthly reports, quarterly tax reviews
May or may not include payroll depending on employee count
Mid-Size Contractor ($750K–$2M Revenue)
Monthly outsourced accounting cost: $1,000–$2,000/month
Typically includes: everything above plus job costing, payroll, 1099 management, WIP schedules, and more frequent CPA reviews
Growing Contractor ($2M–$5M Revenue)
Monthly outsourced accounting cost: $2,000–$3,500/month
Typically includes: full-service bookkeeping, job costing, payroll, financial reporting package, and fractional CFO-level oversight with monthly financial reviews
For comparison, a full-time in-house accountant or controller in Iowa costs $55,000–$85,000 per year fully loaded — $4,600–$7,100/month. Outsourced accounting delivers comparable or better capability at a significantly lower price for most small to mid-size contractors.
What Are the Biggest Benefits of Outsourcing Your Contractor Accounting?
You Get Your Time Back
Most contractor owners who handle their own books spend 6–12 hours per week on financial admin. That's 312–624 hours per year doing work that isn't your core trade. A field superintendent, an estimator, or another crew member is a far better use of that time than reconciling QuickBooks. Outsourced accounting gives those hours back to you.
You Get Better Tax Outcomes
Accurate, organized books reviewed by a construction-specialized CPA produce substantially better tax outcomes than self-managed books or generalist bookkeeping. We routinely find $8,000–$20,000 in annual tax savings for new contractor clients by identifying missed deductions, optimizing S-Corp salary structures, and timing purchases strategically. See our overview of Iowa contractor tax strategies.
You Know Your Real Numbers
The biggest business benefit of proper outsourced accounting isn't tax savings — it's clarity. When you know your actual gross margin by job type, your overhead as a percentage of revenue, and your cash position 13 weeks out, you make better decisions. You bid more accurately. You hire at the right time. You know when to buy equipment and when to hold off. That clarity is worth more than the monthly bookkeeping fee for most contractors.
You Scale Without Adding Headcount
As your contracting business grows from $500K to $2M, your bookkeeping complexity grows with it — more projects, more employees, more subcontractors, more tax complexity. With outsourced accounting, your service scales with your business without you having to hire, train, and manage new people. Your accounting firm handles the increased scope as part of your ongoing engagement.
When Is Outsourced Accounting NOT the Right Choice?
Outsourced accounting is the right choice for most contractors, but there are situations where it makes sense to bring accounting in-house:
- Your revenue exceeds $5M–$8M and your transaction volume is high enough to justify a full-time controller
- You have complex multi-state or multi-entity operations that require daily oversight
- You're a government contractor with extensive certified payroll and compliance reporting requirements
Even in these cases, many contractors keep outsourced CFO advisory services from a construction-specialized CPA firm while handling day-to-day transactions with in-house staff.
How Do I Find a Good Outsourced Accounting Firm for My Contracting Business?
When evaluating outsourced accounting providers for your contracting business, ask these questions:
- Do they specialize in construction, or do they work primarily with other industries?
- Do they do job costing, or just basic bookkeeping?
- Is CPA-level tax planning included or separate?
- How quickly do they deliver monthly reports after month-end?
- Can they provide references from other contractors in your revenue range?
- How do they handle subcontractor 1099 compliance?
See our detailed roundup of the best bookkeepers and accountants for construction contractors for more context on what makes a great construction accounting firm.
Performance Financial — Outsourced Accounting for Iowa Contractors
We are Performance Financial CPA, Accounting & Tax — a Des Moines firm that specializes in outsourced accounting for contractors and small businesses across Iowa and the Midwest.
Our outsourced accounting engagements include bookkeeping, job costing, payroll, 1099 management, monthly financial reports, and integrated tax planning — all under CPA oversight. We work with general contractors, home builders, remodelers, specialty trades, and other construction businesses.
We serve contractors across Des Moines, Ankeny, West Des Moines, Grimes, Johnston, Cedar Rapids, and throughout Iowa.
Book a Tax & Accounting Analysis today — we'll give you a specific scope and pricing quote based on your actual business. You can also see our pricing page or read our client reviews.
Related Resources for Iowa Contractors
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