QuickBooks for Machine Shops: What It Does, What It Doesn't, and the Job Costing Gap

Invoicing, accounts receivable, bills and payables, bank reconciliation, sales tax, and payroll — the accounting core. You can track customers, items for the parts you sell, and assign income and expenses to a customer or project, which gives you a rough after-the-fact view of revenue and direct costs per job.

Just as important: your accountant and bookkeeper already know it. That's why the most common stack in 3–20 person shops is QuickBooks plus Excel plus a whiteboard, and why a shop system that forces a ledger migration usually loses the deal.

QuickBooks has no concept of a routing — no ops, work centers, setup hours, or cycle times — so it can't build a machining quote or print a traveler. It doesn't track material by heat lot or link mill certs to jobs, which AS9100 and many aerospace and medical customers expect. It doesn't schedule work, show what's late, or capture floor time per op.

Its inventory model is built for stocked goods, not the per-job material buying that job shops actually do. And there's no quote pipeline: no quantity breaks with setup amortization, no record of what you quoted versus what it took.

This is the one that costs money. QuickBooks can show a job's revenue and the bills you assigned to it, but labor by op comes from timecards that weren't recorded against operations, and the picture arrives after the invoice — owners describe not knowing whether a job made money 'until after the invoice is paid.' By then the same part has often been re-quoted at the same losing price.

Real job costing compares quoted hours to actual hours per op, actual material against the quote, and landed outside-processing cost, while the job is running. That needs floor data — op start and complete — which accounting software was never designed to collect.

The patches are familiar: a quoting spreadsheet, paper travelers, a whiteboard, and a timecard spreadsheet reconciled by hand. Some owners go further — one built a custom Rails app around QuickBooks and ended up with an 80GB data file. Others describe ERP-to-QuickBooks syncs that take 15 steps every time.

The weak points are double entry (the same customer, PO, and invoice typed into two or three places) and the sync. If you add shop software, ask exactly what it sends to QuickBooks, in which direction, and how you'll know when a record fails.

The clean division: QuickBooks owns the ledger, payroll, and taxes; shop software owns quotes, jobs, travelers, floor time, material and certs, and job costing, and pushes invoices and customers to QuickBooks in one direction. Your accountant's world doesn't change.

Traveler is being built to that rule — it will never include accounting. The plan is a one-way push of invoices and customers (and optionally POs) to QuickBooks Online, with QuickBooks Desktop via a connector, a visible pushed/failed status on every record, and safe retries. Planned pricing is $109/month flat with unlimited users and no implementation fee.