Payroll costs your crew $47/hour loaded, but your accounting software probably books it at $32. That 15-dollar gap — burden, taxes, workers' comp, unpaid drive time — is where job margins quietly die, and where the payroll-vs-accounting decision actually gets decided.
Most contractors don't pick a payroll approach on purpose. You start with accounting software, it offers a payroll add-on, you click yes because one login beats two. That's a defensible call. But the question isn't which tool is better in the abstract — it's which one keeps labor cost mapped to the job it was spent on. That's the number your margins depend on, and it's the one both approaches are worst at protecting.
The accounting bolt-on: tidy books, blurry jobs
The accounting-software payroll add-on wins on reconciliation. Wages, taxes, and liabilities land in the general ledger automatically, and at tax time your accountant loves you. For a crew that mostly does one type of work, this is genuinely hard to beat.
Where it loses you is job-level attribution. Accounting-first tools think in accounts, not jobs. Getting labor to split cleanly across three concurrent projects usually means class tracking, manual allocation, or a paid tier you didn't budget for. Overtime and burden often post as lump-sum ledger entries, not per-job cost — so the Miller job looks profitable until you realize it ate 60% of last week's overtime that got smeared across everything.
Our books balanced to the penny and I still couldn't tell you which job lost money. The labor was all in one bucket.— remodeling contractor, 9-person crew
The standalone payroll approach: sharp cost, extra seams
Purpose-built payroll (or a field-time app feeding it) usually captures cost at the source — clock-in tied to a job code, burden calculated per hour, overtime attributed to the shift that caused it. That's the visibility the accounting bolt-on struggles to reconstruct after the fact.
The tradeoff is real and it's not in anyone's favor: you now have two systems that have to talk. Every standalone tool eventually needs a sync into your books, and that sync is where hours get double-counted, a pay period straddles two jobs wrong, or a manual export quietly drifts from what the ledger says. Best-of-breed gives you sharper data and one more seam to babysit. All-in-one gives you fewer seams and softer data. Pick your poison honestly.
Where the money actually gets buried
Neither approach loses money in the payroll run itself — the checks clear either way. The loss happens in the translation layer between "what the crew cost" and "which job it belonged to." The bolt-on buries it in ledger buckets. The standalone buries it in sync gaps. Same wound, different knife.
The practical fix isn't a magic tool. It's deciding, before you buy, which number you refuse to lose. If job-cost accuracy is what protects your bids, weight toward the standalone approach and budget real time for the sync. If clean books and one login matter more, take the bolt-on and build a monthly labor-allocation habit to recover job detail by hand.
Our bias, for the record: keep as much of the stack in-house and tailored to how you actually run jobs — and reserve the third-party dependency for the one place where a neutral middle genuinely earns its keep. That's escrow. Payment holds shouldn't live inside the same tool that runs your labor, because the point of escrow is that neither side controls it. Everything else you can shape to fit your crew.
If you're rebuilding the stack and want to see where a neutral escrow layer fits alongside your payroll and books, the contractor plans lay it out.