Were charges taxable for screening and separating customer-furnished rock, and what if the work also included crushing or mixing?

Short answer Screening or sorting alone was not taxable fabrication. Crushing or mixing was taxable processing, and combined charges were fully taxable unless sorting was specifically separable.
State
CA
Ruling
Annotation 435.1460
Tax type
Sales and Use Tax
Issued
1966-11-14
Issued by
California State Board of Equalization
Requested by
Los Angeles district audit staff asking whether work on rock and other materials was taxable fabrication

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 tax-counsel memorandum dated November 14, 1966, published by CDTFA as support for a sales and use tax annotation. Its result distinguishes sorting or separating material by size from crushing or mixing it and depends on whether charges for the different operations can be separated. Another taxpayer should not treat it as binding and should check current aggregate-processing, fabrication, charge-allocation, construction-material, 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

Screening, hand sorting, or otherwise separating customer-furnished rock or gravel by size did not by itself amount to taxable fabrication or processing. A charge solely for that work was not taxable under the memorandum's analysis.

Crushing rock or mixing it with other ingredients was taxable processing. If taxable crushing or mixing was combined with sorting, the total charge was taxable unless a specific portion of the material was only sorted or separated and the charge for that work could be separated from the taxable processing charge.

Citations and references

  • No numbered statute or regulation was cited in the source memorandum.

Source

Original ruling text

State of California

Board of Equalization

Memorandum

To:

Los Angeles District – District Principal
Auditor (JTQ)

From:

Tax Counsel (EHS) - Headquarters

Subject:

Fabrication Labor

435.1460

Date:

November 14, 1966

Confirming my telephone conversation today with Mr. C---, this is to inform you that if the only labor performed by R--- Inc., on the materials to be incorporated into real property by P--- K--S---’ Company is screening and separation, the tax will not be applicable to the charges therefore. We have always held that sorting of sizes, whether by screening, hand sorting, or otherwise, does not amount to a taxable fabrication or processing. On the other hand, the crushing of rock or mixing of it with other ingredients is considered taxable processing. If there is such processing involved, the total charge therefore would be taxable unless some specific portion of the material is only sorted or separated and the charge for such sorting and separating can be separated from the charge for taxable processing. Only in that case would the charge for sorting and separating be excluded from the measure of the tax.

EHS:fb

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