Refunds Hidden in Service, Repair, & Maintenance Contracts

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Nov 20, 2025 - 08:25
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Refunds Hidden in Service, Repair, & Maintenance Contracts

Every business signs service contracts.

Every facility schedules repairs.

Every plant pays for preventive maintenance.

And almost every company overpays sales & use tax on these invoices — not because they did anything wrong, but because service providers almost always tax everything by default.

But here’s the hidden truth:

➡️ Many service, repair, and maintenance charges are legally exempt — or only partially taxable — depending on the state and the type of equipment.
➡️ And businesses routinely recover 6–7 figure refunds from invoices they thought were “fully taxable.”

 

Where Tax Leakage Happens in Service Contracts

Line Item on Invoice

How Vendor Bills It

Actual Tax Rule in Many States

Labor for repair

✅ Taxed

❌ Labor is exempt unless bundled

Replacement parts

✅ Taxed

✅ May be exempt if used on exempt equipment

Preventive maintenance

✅ Fully taxed

❌ Often exempt if tied to production assets

Warranty or service agreement

✅ Tax applied on full contract

⚠️ Only parts portion may be taxable

Calibration services

✅ Taxed

✅ Exempt as “professional service”

Software support or updates

✅ SaaS tax applied

✅ Often exempt as nontaxable service

Inspection or diagnostics

✅ Taxed

❌ No tax owed if no tangible property transferred

 

The key problem: Vendors are not responsible for knowing your exemption eligibility.

They charge tax to protect themselves — not you.

 

Real Example: Maintenance Contract Refund

A manufacturer paid sales tax for 4+ years on a multi-state equipment maintenance contract.

  • Vendor charged tax on full contract value

  • 60% of the contract was labor (non-taxable)

  • Equipment qualified for manufacturing exemption

$489,000 refunded


✅ Future contracts rewritten with tax-eligible language
✅ Maintenance now coded as exempt in AP system

 

Why Companies Miss These Refunds

Assumption

Reality

“The vendor is taxing it, so it must be right.”

Vendors tax to be safe, not to be compliant

“Services are always taxable.”

In many states, services are NOT taxable at all

“Maintenance is operational expense, not exempt.”

If tied to exempt equipment → exemption applies

“AP system already calculates tax correctly.”

ERPs don’t interpret state law or usage purpose

“We’d have to audit every invoice manually.”

TaxMatrix automates this review across years of data

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