How do California manufacturers use the partial exemption and Cal Competes?
Edvin Givargis Published 5 minute read
The short answer
As two different instruments requiring two opposite postures. The partial manufacturing exemption is self-executing: a qualified manufacturer buying qualified equipment pays the vendor tax computed without 3.9375 percentage points of the state rate, simply by handing the vendor a partial exemption certificate at or before the purchase. Nobody approves it, no window opens or closes, and the recurring confusion in the field, vendors telling buyers they must first apply for some pre-approval, has it exactly backwards; the only number the certificate asks for is the buyer's ordinary seller's permit, and a manufacturer that waits for permission it does not need is donating tax on every invoice in the meantime. The California Competes credit is the opposite animal: a competitive, application-only income tax credit administered through announced windows each fiscal year, evaluated on factors like jobs created, investment committed, and strategic importance, negotiated into a written agreement, and approved by a statutory committee, with a companion grant program alongside. One is claimed at the cash register; the other is won in a process. A manufacturer planning an expansion should usually be working both at once, and the failure mode for each is characteristic: with the exemption, paying full tax for years because nobody put the certificate into the purchasing workflow; with the credit, discovering the program after the equipment was ordered and the jobs were already promised, when the competitive story is weakest.
The partial exemption: mechanics, scope, and the certificate discipline
The exemption removes 3.9375 percent, the bulk of the state's own share of the rate, from qualifying purchases and leases; district and local taxes still apply, which is why invoices under the exemption show a reduced rate rather than zero. Three questions decide every transaction. Is the buyer a qualified person: primarily engaged in manufacturing under the manufacturing NAICS ranges, in qualifying research and development, or, since 2018, in the generation, storage, or distribution of electric power. Is the property qualified: machinery and equipment with a useful life of a year or more, including components, repair and replacement parts, and certain special purpose buildings and foundations that function as an integral part of the qualified activity, but not consumables, furniture, or general administrative assets. And is the use qualified: the property must be used 50 percent or more in the qualifying activity, measured functionally, so the forklift that splits time between the production floor and the shipping dock has a real percentage question while the fermentation tanks do not. The exemption is capped at 200 million dollars of qualifying purchases per taxpayer per calendar year, a ceiling most mid-market manufacturers never approach but a genuine planning line for large expansions. Execution is paperwork at the point of purchase: the partial exemption certificate, currently the CDTFA-230-M family, delivered to each vendor, blanket certificates for recurring suppliers, and, for out-of-state purchases where no vendor collects, the same partial rate applied in the buyer's own use tax accrual. The certificate also draws the compliance boundary honestly: a buyer who certifies and then uses the property outside the qualification owes the difference, and an audit of a manufacturer will test the exemption file, invoices, certificates, and use records, exactly as the companion article on sales tax audits describes. The exemption runs through mid-2030 under current law, so equipment planning several years out should note the horizon.
Cal Competes: a competition, not an entitlement
The credit works nothing like the exemption. Each fiscal year the administering office announces a small number of application windows and the amounts available; applications are filed inside a window or not at all. The evaluation is genuinely competitive, weighing announced factors, the number and wage level of full-time jobs to be created, the investment committed, the strategic importance of the project to the state or region, the extent to which the credit will influence the decision, and more, and the process is a two-phase funnel in which a quantitative cost-benefit screen precedes a qualitative review and negotiation. What a successful applicant receives is not a rate reduction but a contract: a credit agreement with year-by-year milestones for hiring and investment, approved by a committee whose composition is set by statute, with recapture if the milestones fail. Alongside the credit runs a grant version of the program for applicants that cannot use an income tax credit efficiently. Two disciplines decide most outcomes. First, timing: the credit rewards decisions it can still influence, so the application belongs before the expansion is publicly committed, and a company that signs the lease first has weakened its own case. Second, preparation: the application requires project-level detail, headcount plans, wage schedules, investment budgets, timelines, and the information request should be assembled before the window opens, because the windows are short and the data collection is the slow part. A manufacturer running both instruments on one expansion uses them on their natural axes: the exemption cuts the sales and use tax cost of the equipment as it is purchased, transaction by transaction, while the credit offsets income or franchise tax over the agreement years as the jobs and investment milestones are met, and nothing in either program penalizes claiming the other.
Practice notes
For the exemption, the implementation is a workflow, not a memo: identify the qualified activities and map the NAICS position; build the certificate into purchasing so every qualifying order carries it automatically; configure the use tax accrual for out-of-state equipment at the partial rate; keep a use log for mixed-use assets near the 50 percent line; and sweep recent purchases, because tax paid in error on qualifying equipment is recoverable from the vendor or the state within the limitations period, which turns the first engagement into a refund project as often as a prospective fix. For the credit, calendar the windows the day they are announced, assemble the information request early, and frame the application around influence, what the credit changes about the decision, because that is what the evaluation is designed to detect. And brief the vendors: the most common friction in the field is a supplier who has never seen a partial exemption certificate and either refuses it or, worse, invents an approval requirement; a one-page explanation with the certificate, and the state's own industry guide cited, resolves it faster than argument.
This article states the law as of September 16, 2026
Statutes, rates, thresholds, and agency practice change, and a different set of facts can change the answer. Before acting on anything discussed above, contact G&G State Tax Group to confirm what has changed since this was written and how the rules apply to a specific situation.
G&G State Tax Group, LLC is a state and local tax advisory firm. The firm provides state and local tax consulting and representation in state and local tax controversies. G&G does not prepare or file tax returns, perform attest services, or provide bookkeeping, and is not a CPA firm.