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Should I hire a bookkeeper who understands construction accounting?

Yes, and it’s not a small difference. Construction accounting operates on fundamentally different principles than most small business bookkeeping. The core issue is job costing. You need to track revenue and expenses at the project level rather than just categorizing them by type. A bookkeeper who doesn’t understand this will produce books that balance but don’t tell you which jobs made money.

General bookkeeping tracks money coming in and going out. Construction bookkeeping tracks money by job, by phase, and sometimes by cost code. When you buy materials at the supply house, that expense needs to hit the right project. When a subcontractor invoices you, that cost belongs to a specific job. A generalist bookkeeper categorizes these as “materials” and “subcontractors” and considers it done. You end up with accurate total expenses but no visibility into job-level profitability.

Progress billing creates another layer of complexity that generic bookkeeping doesn’t address. You might bill $50,000 on a job where you’ve incurred $60,000 in costs. That’s underbilled work that affects your financial position differently than it appears on a basic profit and loss statement. Or you’ve billed $60,000 on a job where you’ve only spent $40,000. That’s overbilled, and while it helps cash flow, it represents work you still owe. A bookkeeper unfamiliar with construction won’t flag these situations or track work-in-progress correctly.

Retainage requires separate tracking. When a customer holds back 10% until final completion, that’s money you’ve earned but can’t collect yet. It needs to be recorded as a receivable, aged properly, and followed up on. Generic bookkeeping might lump it in with regular receivables or miss it entirely.

The 1099 situation in construction is more involved than most industries. Subcontractors move from job to job, sometimes working on multiple projects in a single month. Tracking payments accurately by vendor, getting W-9 information before the first payment, and issuing correct 1099s at year end requires understanding how construction crews and subcontractor relationships actually work.

If you’re bonded or pursuing bonding, your financial statements need to satisfy surety requirements. That means proper classification of assets and liabilities, accurate work-in-progress schedules, and statements formatted in a way that makes sense to underwriters. A bookkeeper who doesn’t understand bonding won’t produce statements that work for this purpose.

The practical difference is significant. A bookkeeper who understands construction will set up your chart of accounts correctly from the start, know which reports you need to run your business, and catch errors that someone unfamiliar with the industry would miss. You’ll know which jobs are profitable, which are losing money, and where your cash is tied up in underbillings or retainage.

Most contractors who complain about not knowing their real numbers are working with someone who doesn’t understand the industry. The books balance, but they don’t provide insight for actual decision-making. Working with a Boise area enrolled agent who knows construction means your books tell you something useful about your business, not just whether debits equal credits.

The Treasure Valley's Tax and Accounting Team

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