Was a dentist a retailer of plates and inlays made in the dentist's own laboratory for use in patient services?

Plain-English summary

An internal inquiry asked how State sales tax applied to plates, inlays, and other dental-laboratory products produced by dentists operating their own laboratories.

Under historical Sales Tax Ruling 5, the dentist was the consumer of all tangible personal property used while performing dental services. The memorandum therefore treated the dentist as consuming the materials used to make the laboratory products, rather than making retail sales of the finished plates or inlays.

The source is limited to products the dentist used while performing the dentist's own services. It does not discuss products made for other dentists or separately sold to patients.

Source and live-annotation limits

The memorandum does not reproduce the inquiry, identify a dentist or patient transaction, or supply a laboratory, plate, inlay, other product, material, purchase, tax payment, service, bill, return, audit, assessment, or later outcome. It cites former Ruling 5 without reproducing it and gives no separate statutory or regulatory analysis.

The live annotation preserves only that a dentist operating an own laboratory was not retailer of plates and other products used in professional services. It omits the internal memorandum posture, inquiry phrasing as “sales,” inlays, all-tangible-property rule, material-consumer conclusion, Ruling 5, missing records, outside-sale limit, and later-outcome gap.

What this means for you

Dentists, dental laboratories, and tax professionals

Document who operates the laboratory, who receives and uses each product, whether it is used in the dentist's own professional service or sold outside the practice, and the material purchases and tax.

Common questions

Did operating a laboratory automatically make the dentist a retailer?

No. Own-practice use of the finished products kept the dentist in consumer status under the cited ruling.

Does this opinion cover appliances made for other dentists?

No. The short memorandum addresses products used by the dentist in performing the dentist's own services.

Citations and references

• Former California Sales Tax Ruling 5 — cited but not reproduced
• Internal inquiry, dental laboratory products, materials, patient services, and transaction records — described or referenced but not included

Verbatim support

From the official February 15, 1951 memorandum:

Pursuant to Ruling 5, dentists are the consumers of all tangible personal property, including dental laboratory products which they use in performing their services.

Accordingly, the dentist who operates his own dental laboratory will be regarded as the consumer of the materials used in producing the laboratory products which he, in turn, uses in performing his services as a dentist.

Source

• Annotated Legal Opinions collection: https://cdtfa.ca.gov/taxes-and-fees/annotations-menu.htm
• Annotation page: https://cdtfa.ca.gov/lawguides/vol2/suta/360-0000-all.html
• Original supporting opinion: https://cdtfa.ca.gov/lawguides/annotations/360-0060.pdf

Original ruling text

State of California

Memorandum

To:

Mr. L. H. Wilson

From:

R. G. Hamlin

Subject:

Dentists and Dental Laboratories

Board of Equalization

360.0060
Sacramento
February 15, 1951

You have inquired with respect to the application of the State sales tax to sales of plates, inlays, and other dental laboratory products by dentists who operate their own dental laboratories. Pursuant to Ruling 5, dentists are the consumers of all tangible personal property, including dental laboratory products which they use in performing their services. Accordingly, the dentist who operates his own dental laboratory will be regarded as the consumer of the materials used in producing the laboratory products which he, in turn, uses in performing his services as a dentist.

RHG:HB