Were ready-mix concrete batching and in-truck mixing taxable processing, and did a construction-subcontract label change that result?

Short answer Yes. Weighing and batching the ingredients and mixing them in the truck were taxable processing of wet concrete; the subcontract label did not make the supplier a construction contractor.
State
CA
Ruling
Annotation 435.0500
Tax type
Sales and Use Tax
Issued
1966-03-25
Issued by
California State Board of Equalization
Requested by
A ready-mix concrete business petitioning tax on batching, mixing, delivery, and related audit treatment

Apply this to your situation

This page answers the general question as of 1966. Ask about yours and see what current California tax law says, with citations.

Currency note: this ruling is from 1966
Subsequent statutory amendments, regulation changes, court decisions, or later rulings may have changed the analysis. Treat this page as historical context, not current tax advice. Verify current law before relying on any specific rule, rate, or position mentioned here.
Disclaimer: This is a California State Board of Equalization associate-tax-counsel letter dated March 25, 1966, published by CDTFA as support for a sales and use tax annotation. It recommends audit treatment rather than recording final Board action and applies historical statutes, rulings, Attorney General opinions, and cases to ready-mix concrete operations. Another taxpayer should not treat it as binding and should check current concrete, construction-contractor, delivery, resale, related-entity, and sales-and-use-tax rules. This summary is informational only and is not legal or tax advice.
About this page: The plain-English summary, reader guidance, and Q&A below were written by Ezel based on the official state tax ruling. The original ruling (linked on this page as a PDF) is the authoritative source for any reliance.
View original ruling (PDF)

Plain-English summary

A ready-mix concrete business weighed and placed rock, gravel, sand, cement, and water into trucks in specified proportions, then mixed the ingredients while traveling to job sites. The letter treated batching as substantial fabrication and processing and truck mixing as processing that completed manufacture of the wet concrete.

Calling an agreement a construction subcontract did not change the result. Under Ruling 11 and the cited cases, construction-contractor treatment depended on actually erecting, remodeling, repairing, or incorporating the property into a structure—not merely supplying processed property for incorporation.

The delivered-price arrangement also meant no deduction for transportation from the batching plant to the job site under section 6012(g), as cited. Separate corporate entities produced taxable transactions even when one purchaser was wholly owned by the taxpayer's president and sole shareholder.

The staff nevertheless directed audit adjustments for qualifying resales to a joint venture and for subcontracts whose stated charges included sales tax. It planned to recommend that the processing and fabrication assessment otherwise remain in place; the source does not record final Board action.

Citations and references

  • California Revenue and Taxation Code sections 6005, 6006, and 6012(g) (as cited)
  • California Sales Tax Ruling 11 (as cited)
  • 20 Ops. Cal. Atty. Gen. 290 and 35 Ops. Cal. Atty. Gen. 48 (as cited)
  • Hayward Building Co. v. State Board of Equalization (1958), 164 Cal. App. 2d 607 [P.2d 855] (as printed in the source)
  • Overly Manufacturing Co. v. State Board of Equalization (1961), 191 Cal. App. 2d 20 [12 Cal. Rptr. 391] (as cited)
  • Santa Clara Sand & Gravel Co. v. State Board of Equalization (1964), 225 Cal. App. 2d 676 [37 Cal. Rptr. 506] (as cited)

Source

Original ruling text

STATE OF CALIFORNIA

435.0500

STATE BOARD OF EQUALIZATION
March 25, 1966

X---------------------Attention:

X--------------------------

Gentlemen:
This is to inform you of our conclusions with respect to the above named taxpayer's petition for redetermination on sales tax. We regret that we must recommend to the board that the auditor properly asserted tax on the taxpayer's charges for the processing and fabrication of concrete. However, we are instructing the auditors to make adjustments in the audit for sales for resale to the X----------------- joint venture, and to treat the taxpayer as including sales tax in his charges where so provided in the subcontract. It is our conclusion that a taxable processing occurs when materials for concrete are batchcd. Batching involves placing rock, gravel, sand; cement, and water into readymix trucks in proper proportions so that the concrete will have certain characteristics and meet certain specifications. We believe the weighing and placing of the aggregates constitutes a processing and a substantial portion of the fabrication of the concrete. Mixing the aggregates in the ready-mix truck also constitutes processing and completes the manufacture of the wet concrete. The California Attorney General has twice ruled that operations performed for contractors are subject to sales tax as a processing or fabrication of tangible personal property. (20 Ops. Cal. Att’y Gen. 290; 35 Ops. Cal. Att’y Gen. 48.) The second opinion deals with the closely related subject of concrete subbase. While the taxpayer in three of the jobs entered construction subcontracts with the general contractor, he was not a construction contractor within the meaning of ruling 11. In this regard, your memorandum of March 14, 1966, states that you believe the case of Hayward Building Co. v. State Board of Equalization (1958) 164 Cal. App. 2d 607 [P.2d 855], would have been decided differently from the facts present in this case. You list three reasons for this opinion. First, X----------------- did not own the materials. While this is a factual distinction, we do not believe it would have changed the court’s decision. Section 6006 of the Revenue and Taxation Code includes in the definition of “sale” both sales of tangible personal property and processing or fabrication of such property.

Your second reason for saying that the X----------------- is not controlling is “…the services actually performed by X----------------- for the general contractor were services of the type that a cement contractor would perform for a general contractor….” However, in the Hayward case, the plaintiff supplied wet cement which it had batched to the general contractor’s jobsite in its mixing truck. It seems to be the same service in question here. Your third point of difference is that the taxpayer in three of the jobs had a construction subcontract with the general contractor while Hayward Building Co. furnished ready mix pursuant to purchase orders. It is our opinion that the form of contract is not controlling. For purposes of the sales tax, a construction contractor is determined by what services are performed and not by the type of contract. Ruling 11 (copy enclosed) provides: “(2) The term ‘construction contract’ as used herein means a contract for erecting, remodeling, or repairing a building or other structures on land…” In order to qualify for the tax treatment provided by ruling 11, the contractor must perform the “erecting, remodeling, or repairing.” Thus in Overly Manufacturing Co. v. State Board of Equalization (1961) 191 Cal. App. 2d 20 [12 Cal. Rptr. 391], the court states, at page 28, “[I]t is clear that the fact tangible personal property is supplied for the purpose of being incorporated into a structure is not sufficient to classify the supplier as a consumer of materials. He must actually engage in the service of incorporating them into the structure, and the service must be more than merely incidentally performed to accomplish the sale.” Accordingly, it is our conclusion that the taxpayer made fabrication and processing sales of tangible personal property and was not the construction contractor under ruling 11. the audit properly allowed no deduction for transportation from the batching plant to the jobsite. The materials were sold for a delivered price, and this constitutes gross receipts under § 6012(g). (Santa Clara Sand & Gravel Co. v. State Board of Equalization (1964) 225 Cal. App. 2d 676 [37 Cal. Rptr. 506.] the audit properly set up tax on sales on the X---------------- job, even though the purchaser-corporation was wholly owned by the taxpayer’s president and sole stockholder. The corporations are persons under § 6005 of the California Sales and Use Tax Law, and their separate corporate entities result in taxable transactions. The auditor will make the adjustments we have indicated for both audit periods. We have asked him to let you know of the extent of the adjustments and to determine whether a board hearing is desired.

Very truly yours,

John H. Knowles
Associate Tax Counsel
JHK:md
Encl.
Cc:

Pasadena – Subdistrict Administrator
Attached are copies of hearing officer’s reports dated 2-25-66, which have been approved. The hearing was held in Pasadena on 1-14-66. Also attached are the audit work papers for the period 10-1-61 to 9-30-64.

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