Lab fees are a direct cost of the procedure. They belong in cost of goods sold on your books, not lumped into general operating expenses or supplies. This distinction matters because it directly affects how you calculate margins on restorative work like crowns, bridges, dentures, and implants. If lab fees are buried in overhead, you have no idea which procedures actually make money.

In QuickBooks, create a COGS account specifically for dental lab fees. Every time you receive an invoice from your lab, record it against that account. If possible, tag each expense to the procedure type it relates to. Over time this builds a dataset that shows what each type of restoration actually costs your practice versus what you collect for it.

There are three common approaches for handling lab fees with patients. The first is absorbing them entirely, where your procedure fee covers everything including the lab cost. This is the simplest approach for patients and common in insurance-heavy practices. The risk is that rising lab costs quietly erode your margins. The second option is passing them through at cost, billing the patient or insurance separately for the exact lab fee. This protects your clinical margin and some patients appreciate the transparency. The third approach is marking them up, usually 10 to 20 percent, to cover coordination time, remakes, and shipping. This is reasonable from a business perspective but needs to be communicated clearly so patients don’t feel surprised at checkout.

The right choice depends on your fee structure and patient base. Fee-for-service practices tend to pass through or mark up lab fees more commonly. Insurance-driven practices often absorb them into the procedure fee but need to adjust those fees when lab prices increase.

Insurance contracts add another layer. Some plans allow you to bill lab fees separately using the appropriate CDT code. Others bundle the lab fee into the procedure reimbursement. You need to know the terms of each major payer contract. If a plan doesn’t reimburse lab fees separately, passing them to the patient may or may not be allowed depending on your participating provider agreement. Getting this wrong can create compliance issues, so review those contracts carefully.

Track lab costs by procedure type, not just as one big monthly number. A single crown might cost you $150 at one lab or $300 at another depending on the material. If your reimbursement for that crown is $800, you need to know whether your lab cost is $150 or $300 because that changes your margin significantly. Practices that work with dental practice bookkeeping set up this tracking from the start so the data is there when they need it.

Review lab expenses quarterly against collections by procedure code. This tells you which restorative procedures are genuinely profitable and which ones are barely breaking even once you account for the lab. If zirconia crowns cost more than PFMs at the lab but you’re collecting the same fee for both, that’s a pricing problem you can only see with good data. Having healthcare practice bookkeeping services that understand how dental practices operate makes it much easier to build these reports and actually use them for decision-making.