If Utah's sales tax rate changes between when a fixed-price construction contract is signed and when the work is delivered, which rate applies?

Plain-English summary

A custom fabricator of architectural metal products (brass handrails, door frames, etc.) bids fixed-price contracts on construction projects, sometimes with up to two years between contract award and delivery. Utah's sales tax rate rose from 6.125% to 6.225% during that gap on one of its contracts, and its fixed-price terms didn't allow adjusting the price for a tax-rate change. The fabricator argued the original 6.125% rate (in effect when the contract was signed) should still apply.

The Commission disagreed with that framing, and — importantly — also reframed the underlying facts: it noted that for purposes of this opinion, it assumed the fabricator's transactions were straightforward sales to contractors (not installations that convert the metalwork into real property), even though the fabricator's letter described doing installation work too. Based on that assumed fact pattern:

The tax rate is set by when the SALE is completed, not when the contract was signed. Under Utah Admin. Rule R865-19S-31 (echoing the Uniform Commercial Code's title-passage rule, Utah Code Ann. § 70A-2-401), a sale is completed — and title passes — at the time and place the parties' contract specifies, or if the contract requires delivery/shipping, at delivery, unless the contract says otherwise. The rate in effect at that later delivery/title-passage moment applies, even if it's higher than the rate quoted when the fixed-price contract was signed, and even if the contract can't be adjusted for the change. The parties can change this outcome only by explicitly agreeing in their contract to fix the time of sale earlier.

A different rule applies if the fabricator DOES convert the item to real property (i.e., installs it as a real property contractor). In that scenario, the fabricator — not its customer — is the taxable end user of the materials, and the relevant tax rate is whatever rate was in effect when the fabricator purchased its own raw materials/supplies to make the item, regardless of when the customer contract is later performed.

The Commission's practical advice: contract drafters should keep in mind that (1) the time of sale can be controlled by contract terms, and (2) tax rates are always subject to change, so contracts can and should build in a mechanism to adjust price for a rate change.

What this means for you

Fabricators and manufacturers selling on long-lead fixed-price contracts

If your contract doesn't explicitly fix an earlier "time of sale," a Utah sales-tax rate increase between contract signing and actual delivery lands on you (or your customer, if you can pass it through) — the rate quoted at signing is not locked in. Build a tax-rate adjustment clause into long-lead fixed-price contracts, or explicitly define when the "sale" occurs for tax purposes.

Businesses that sometimes sell TPP and sometimes act as a real-property installer

Which "sale" your rate is pegged to depends heavily on which role you're in for a given contract. As a straight seller to a contractor, the customer-facing delivery/title-passage date controls your rate. As a real-property contractor installing your own fabricated work, it's your own materials-purchase date that controls — a materially different (and often more favorable, since materials are typically bought earlier) rule.

Accountants and tax professionals

Notice the Commission explicitly reframed the taxpayer's facts before answering — it assumed a pure sales-to-contractor scenario rather than the mixed sale/installation pattern the fabricator actually described, and flagged the different outcome that would apply if installation/conversion to real property were actually happening. Read this ruling's holding as conditional on which fact pattern actually applies to your client.

Common questions

Q: If I sign a fixed-price contract and the sales tax rate later goes up, do I owe the new rate?
A: Yes, generally — the rate at the time of sale (usually delivery/title passage) controls, not the rate quoted when the contract was signed, unless your contract explicitly fixes an earlier time of sale.

Q: Does this rule change if I install what I sell and it becomes part of a building?
A: Yes — then you're a real property contractor and the taxable event is your own purchase of materials, taxed at the rate in effect when YOU bought those materials, regardless of when you later perform the installation contract.

Q: Can I protect myself from a rate change with contract language?
A: Yes — the Commission specifically suggested drafting contracts that define time of sale and account for the possibility of a tax rate change.

Q: Can I rely on this 1997 ruling today?
A: Not directly — it binds the Commission only for the taxpayer and facts it addressed (as narrowed by the Commission's own assumption), and Utah's rules have been renumbered and amended repeatedly since. Verify current law before relying on it.

Citations and references

Rules:

• Utah Admin. Rule R865-19S-31 (time and place of sale determined by the sales contract; title passes at delivery absent contrary agreement)

Statutes:

• Utah Code Ann. § 70A-2-401 (Uniform Commercial Code passage-of-title rule)

Source

• Landing page: https://tax.utah.gov/commission/rulings/
• Original PDF: https://files.tax.utah.gov/tax/commission/ruling/97-011.htm

Original ruling text

97-011

Response
March 3, 1997

Request

Dear
Mr. Oveson:

My
company is a custom fabricator of architectural metal products. Our primary market is commercial and government
construction, both new and renovation. The process we follow in securing work
is to submit a fixed-price quotation for a specific construction project to
contractors who are bidding the job. If
we are the low bidder, we are generally awarded a contract for the work. The nature of our work is such that it is
usually incorporated into a construction project near its completion. There can be up to two years between the
time of contract award and work initiation and completion.

Some
of the work we do involves installation of the item as part of the fixed-price
contract. The brass handrailings and
brass door frames in COMPANY A is an example of my company�s work. When my company does the installation of
items we fabricate, we convert personal property to real property. Therefore, my company is responsible for the
sales tax on the cost of materials included in our installed product. The applicable sales tax is include in our
fixed-price quotation.

I
request an advisory opinion on what sales tax rate is applicable on a
fixed-price contract, such as described above, given the fixed-price contract
was established using the applicable sales tax rate at the time the contract
was made and the sale is made at a time the when a different sales tax rate is
applicable. The contracts my company
has are fixed-price and allow no change in price for changes in tax rates. My opinion is the sales tax rate used when
the contract was made, in my situation 6.125%, is the rate which should be used
now when the sale is made, not the current sales tax rate of 6.225%.

Best
Regard,

NAME

NAME

ADDRESS

CITY
STATE ZIP

RE: Advisory
Opinion - Sales Tax Rate for Fixed Price Contract

Dear
NAME,

We received your request for an advisory
opinion on the applicable sales tax rate for a contract that was signed when
the tax rate was 6.125% but was performed after the tax rate had increased to
6.225%. You described your transactions
as sales to contractors. For purposes
of this opinion, so we assume that you are not converting these items to real
property and that the taxable transactions are the sales to the
contractors. We find as follows:

The applicable sales tax rate is the
rate in effect when the sales transaction is completed, not the rate in effect
when the contract for sale is signed. A
sale is completed when title to the property passes. Utah Administrative Rule R865-19S-31 states, in relevant part:

Ordinarily, the time and place of a sale are determined by the contract
of sale between the seller and buyer.
The intent of the parties is the governing factor in determining both
time and place of sale subject to the general law of contracts. If the contract of sale requires the seller
to deliver or ship goods to a buyer, title to the property passes upon delivery
to the place agreed upon unless the contract of sale provides otherwise.

Rule R865-19S-31 reflects the
statutory test for passage of title set out in the Uniform Commercial Code, Section
70A-2-401 of the Utah Code. Section
70A-2-401 states in part:

(1) . . . title to goods passes from the seller to the buyer in any
manner and on any conditions explicitly agreed on by the parties.

(2) Unless otherwise explicitly agreed title passes to the buyer at the
time and place at which the seller completes his performance with reference to
the physical delivery of the goods. . . .

In
other words, time of sale is defined as the time the product is delivered,
unless you and your customer have contractually agreed otherwise. Unless your
sale to the contractor was complete prior to the increase in the tax rate, you
must collect and remit tax calculated at the current 6.225% rate.

If you convert the fabricated items
to real property, you are acting as a real property contractor. As a real property contractor, you are
responsible for the tax on your purchases of materials used to fabricate the
item, regardless of when you perform on the contract with your customer. The applicable tax rate is the rate in
effect at the time of your purchases of supplies or materials used to fabricate
the final taxable item.

As you draft contracts with your
suppliers and customers, keep two things in mind. First, the time of sale can be controlled by the terms of your
contract. Second, tax rates are always
subject to change, and your contracts can provide for adjustment.

Please let us know if you have other
questions

For
the Commission,

Joe
B. Pacheco,

Commissioner