The Tax Reality of Donating Services and Materials

Why this matters

An owner donates a job, writes up what it would have cost a paying customer, and hands that number to the bookkeeper as a charitable deduction. Then the preparer strikes most of it. The labor, which is usually the biggest part of the invoice, was never deductible as a gift, and the materials were already deducted once as a cost of doing business. None of this means donating is a bad idea. It means the tax benefit is smaller than the invoice, it lands in a different place depending on how the shop is organized, and whether there is any benefit at all can depend on who the gift went to.

This card describes the federal rules as of the 2026 tax year. It is not tax advice: rules change, the entity type decides a great deal, and a donated job with real money in it is a conversation with your tax preparer before the year closes, not after. For doing the job itself, see related: How to Donate Work Without Creating Liability.

Rule 1: The value of your time is not a deduction

IRS Publication 526, Charitable Contributions, says plainly that you cannot deduct the value of your time or services, including the value of income lost while you work as an unpaid volunteer. That applies to the owner's hours and to the hours you would have billed for your techs.

It does not mean the labor costs the shop nothing on the tax return. If you pay your techs for the hours they spend on a donated job, those wages are deductible the way all wages are, as an ordinary business expense. What is not deductible is the gap between what you paid and what you would have billed, your margin. The owner who lists "billed value of labor" as a gift is trying to deduct revenue the shop never earned and never reported, which is exactly what the rule prevents.

Rule 2: Materials are deducted once, usually at cost

When a shop gives away property it would normally sell, such as a water heater from stock or parts and fittings, the property is generally treated as ordinary income property, and under Internal Revenue Code Section 170(e) the charitable deduction is generally limited to your cost (your basis), not its retail price.

And there is a second catch: if the cost of those materials already flowed through your cost of goods sold, you have already deducted it. The regulations (Treasury Regulation 1.170A-1(c)(4)) prevent deducting the same cost twice, once as cost of goods and again as a contribution. In practice, many shops simply leave donated materials in cost of goods and claim nothing further, which reaches the same result. Your preparer will pick the treatment.

There is an exception worth asking about only if you are a C corporation: Section 170(e)(3) allows an enhanced deduction for inventory given to a qualified charity for the care of the ill, the needy or infants, under conditions the statute lists, including written statements from the charity. Whether donated home repair materials qualify is a question for your preparer, not an assumption.

Rule 3: The gift has to go to a qualified organization

A charitable deduction requires a gift to or for the use of a qualified organization: generally a 501(c)(3) charity, a church, or a government unit for public purposes. A gift directly to an individual, however needy, is not deductible at all. The IRS's online Tax Exempt Organization Search confirms whether an organization is eligible to receive deductible gifts; churches are generally eligible without appearing there.

This is the rule donated home repair most often trips. If a homeowner calls you directly and you fix her furnace for free, there is no charitable contribution, whatever your intentions. If a qualified charity runs the program and asks you to do the job, there may be one, but whether property you install directly in a private home at the charity's request counts as a gift to the charity depends on how the program is structured. That is the first question to bring your preparer, with the charity's request in writing.

Rule 4: Your entity type decides where any deduction lands

Legislation enacted in 2025 changed several of these rules beginning with the 2026 tax year, including a floor below which a corporation's gifts, or an itemizing individual's, do not count toward the deduction, and a separate capped deduction for cash gifts by people who do not itemize. Confirm the current percentages with your preparer rather than working from memory or from an older article.

Rule 5: Advertising is a different deduction, not a better charitable one

If what you are really buying is visibility (your truck at the event, your name on the program, a banner at the build), the cost may be deductible as an ordinary business expense rather than as a charitable gift; the regulations (Treasury Regulation 1.170A-1(c)(5)) treat a transfer that bears a direct relationship to your business and is made with a reasonable expectation of financial return commensurate with the amount transferred as a business expense instead of a contribution. That can be the more useful treatment, especially for a pass-through owner who does not itemize. It still does not make the billed value of your labor deductible. See related: Community Presence: Sponsorships and Events.

Rule 6: Paperwork that has to exist

• A written acknowledgment from the charity for any single contribution at or above the threshold the IRS sets, received by the time you file, stating what you gave and whether you received anything in return. Publication 1771 describes what it must contain.
• Form 8283 when noncash contributions in a year pass the threshold the form sets, with more documentation, including a qualified appraisal, at higher values.
• Your own records of cost: the invoice for the unit, the parts pulled, the wages paid for the hours.

The acknowledgment describes the property, not its value; valuing it is your job. Note that nobody, including the charity, can give you an acknowledgment for the value of labor, because labor was not a contribution.

Worked example

A ten-person HVAC shop, organized as an S corporation, replaces a furnace at no charge for a homeowner referred in writing by a church's home repair ministry. To keep it free of currency, count everything in cost units, where 1 unit is what one hour of a tech's wage and payroll burden costs the shop.

WHAT THE INVOICE WOULD HAVE SAID
Labor  12 hr x 2.5 units billed/hr     30 units
Furnace + parts, retail (cost x 1.5) 36 units
Total the owner first wrote down       66 units

WHAT THE SHOP ACTUALLY SPENT
Wages, 2 techs x 6 hr x 1 unit/hr      12 units
Furnace + parts at shop cost           24 units
Total real cost                        36 units

HOW EACH PIECE IS TREATED
Wages 12        deducted as wages, already
Materials 24    in cost of goods, already
Margin on labor (30 - 12 = 18)    never income,
                                  not deductible
Markup on parts (36 - 24 = 12)    never income,
                                  not deductible

Reading it. The owner's 66 units were 36 units of real cost plus 30 units of margin (18 on labor plus 12 on parts). The 36 units of cost were already deducted through wages and cost of goods; claiming them again as a gift would be the double deduction the regulations bar. The 30 units of margin were never income, so there is nothing to deduct. The shop's tax benefit is that its real cost is deductible once, the same as for any job, and that is all.

What changes the answer. Suppose the preparer instead pulls the 24 units of materials out of cost of goods and treats them as a contribution. As an S corporation, that contribution passes through to the owner's personal return, where it only helps if the owner itemizes and clears whatever floor applies that year. If the owner takes the standard deduction, moving the materials out of cost of goods would make the shop's tax position worse, because a cost that reduced business income now reduces nothing. For a C corporation the same move would keep the deduction on the corporate return, subject to the income-based limit, and might qualify for the enhanced inventory deduction if the conditions hold. And if the homeowner had called the shop directly with no charity involved, none of it is a contribution, and the 36 units simply stay as business costs.

What a shop should actually do

• Decide the donation on its merits, not its tax value. The benefit is the real cost, deducted once.
• Run any donated job through a qualified organization's program, in writing, if a deduction matters at all.
• Keep cost records as you would for a paid job, and a zero-amount ticket in your system.
• Bring the preparer the charity's written request, the acknowledgment, and your costs before year end, and ask which treatment fits your entity.

References

• IRS Publication 526, Charitable Contributions (current year edition)
• IRS Publication 1771, Charitable Contributions: Substantiation and Disclosure Requirements; Form 8283
• Internal Revenue Code Section 170, including 170(e) (ordinary income property) and 170(e)(3) (inventory for the ill, needy or infants)
• Treasury Regulation 1.170A-1(c)(4) and (c)(5)
• See related: How to Donate Work Without Creating Liability