You pick up a water heater at the supply house, and there’s sales tax on the receipt. That evening you look at a competitor’s quote a customer forwarded you, and there’s sales tax on that too. So who’s right? Should you be charging it, paying it, or both?
Here’s the short answer. On most installation and repair work you do on a customer’s home or building, Georgia treats you as the one who pays sales tax on the materials, and you generally don’t add sales tax to the customer’s bill. But not every job works that way. Repairs to things that aren’t part of the building, and parts you sell without installing, follow different rules.
Most trade shops do all three kinds of work in a normal month without realizing the rules change between them. That’s the trap. Here’s how to stay out of it.
Why Georgia treats you as the customer
In Georgia, a contractor is anyone who supplies materials and does the work to build, alter, repair, or improve real property, which means buildings and anything permanently attached to them. That covers most plumbers, HVAC technicians, electricians, roofers, and handymen working at a customer’s home or business.
The Georgia Department of Revenue treats contractors as the consumer of the materials they use. In plain terms, the state sees you as the final buyer of that copper pipe, breaker, or bundle of shingles, not your customer. You owe sales tax when you buy, use, or store those materials, whichever comes first.
Two things follow from that.
First, you can’t buy materials tax-free, even when the job is for a church, a school, or a government agency. Their tax exemption doesn’t pass through to you.
Second, the tax you pay is a real cost of the job. It belongs in your bid alongside the materials themselves. If your pricing assumes the tax is someone else’s problem, every job is quietly a few percent less profitable than you think.
The three hats your shop wears
The easiest way to keep the rules straight is to picture three hats. Which one you’re wearing depends on the job, not on your license or your trade.
The contractor hat. You’re working on the building itself: installing a new water heater, replacing a furnace, upgrading an electrical panel, re-roofing a house, or repairing any of those. The materials become part of the property. You pay sales tax when you buy them, and you generally don’t charge sales tax on the customer’s invoice.
The repairer hat. You’re fixing something the customer owns that isn’t part of the building: a portable generator, a pressure washer, a window unit, a piece of equipment they dropped off at your shop. Here you’re treated more like a repair shop. You generally collect sales tax from the customer on the parts, and labor is tax-free only if it’s listed separately on the invoice.
The retailer hat. You sell a part or a unit and don’t install it: a customer buys filters at your counter, or a homeowner wants you to drop off a water heater their brother-in-law will install. Now you’re a store. You collect sales tax on the sale like any retailer.
| Job type | Example | Who pays the sales tax | What goes on the invoice |
|---|---|---|---|
| Contractor | Replacing a water heater or furnace | You, when you buy the materials | No sales tax line, generally |
| Repairer | Fixing a customer’s portable generator | The customer, on the parts | Parts and labor on separate lines, tax on parts |
| Retailer | Selling filters over the counter | The customer | Sales tax on the sale |
Real life has gray areas. Some equipment sits right on the line between “part of the building” and “something the customer owns,” and how a job is set up can change the answer. If you do a lot of work that could go either way, confirm how to treat it with your CPA or the Department of Revenue rather than guessing.
Labor: the line that saves your customer money
On repair work where you collect sales tax, how you write the invoice matters a lot.
Georgia doesn’t tax repair or installation labor when it’s listed separately from the parts. If you lump everything into one price, the state can tax the whole amount, labor included. Georgia’s repair rule says it directly: when parts aren’t itemized, the tax applies to the total charge for parts and labor.
Here’s what that looks like on a $600 generator repair.
Lump-sum invoice:
- Generator repair: $600
- Sales tax is figured on the full $600
Itemized invoice:
- Parts (carburetor kit, spark plug, filter): $150
- Repair labor, 3 hours: $450
- Sales tax is figured on the $150 in parts only
Same job, same total before tax, but on the itemized invoice your customer pays sales tax on $150 instead of $600. The fix is free, and it’s something your invoicing software should do for you automatically.
The use tax nobody remembers
This one catches a lot of good shops.
When you order materials online or from a supplier outside Georgia, they often don’t charge you Georgia sales tax. That doesn’t mean the tax goes away. If those materials end up in a Georgia job, you owe use tax on them, and you report it yourself on your own sales and use tax return.
Common places this happens:
- Parts and tools bought on Amazon or other online marketplaces that didn’t charge Georgia tax
- Specialty fittings or controls from an online parts store in another state
- Equipment ordered directly from a manufacturer
Use tax is easy to miss because nothing reminds you. There’s no tax line on the invoice to catch your eye. It’s also one of the first things an auditor checks, because untaxed out-of-state purchases are easy to spot in your bank and card statements.
Warranty work is its own puzzle
Warranty repairs show just how specific these rules can get.
In one Department of Revenue letter ruling, the state looked at a company doing repairs under two kinds of warranties. For repairs under the manufacturer’s warranty, the parts weren’t taxed again, because the warranty was already built into the taxed price of the product. For repairs under an optional extended warranty sold separately, the parts were taxable.
That ruling applied to one company’s specific facts, so don’t treat it as a rule for every situation. The takeaway is simpler. If you do a meaningful amount of warranty work, it’s worth having someone look at how you’re handling the tax on it.
File even when there’s nothing to file
Once you’re registered for Georgia sales and use tax, you have to file a return on your assigned schedule, even in months when you owe nothing. The Department of Revenue’s contractor guidance says contractors file monthly, and it specifically includes months with no activity.
Skipped “zero returns” are one of the most common reasons trade shops get letters from the state, with penalties attached for returns that would have shown $0 due. If you’re not sure what schedule you’re on, log in to Georgia Tax Center and check your filing frequency.
Five mistakes that cost Georgia contractors money
If any of these sound familiar, it’s worth a closer look at your setup.
- Charging sales tax on installation jobs. On contractor-hat work, you’ve usually already paid the tax on your materials. Adding it to the customer’s bill overcharges them, and it can make your price look higher than a competitor’s for no reason. If you’ve collected tax from customers that you didn’t owe, you generally still have to send it to the state, so talk to your CPA about how to correct past invoices.
- Not collecting tax on repair parts. On repairer-hat work, the tax on parts is the customer’s to pay. If you don’t collect it, you may end up paying it yourself after an audit.
- Lump-sum repair invoices. One price for parts and labor can turn tax-free labor into taxable labor.
- Forgetting use tax on online and out-of-state orders. No tax on the receipt doesn’t mean no tax owed.
- Skipping zero returns. A return showing $0 due still has to be filed on time.
How clean books take care of all of this
None of this has to live in your head. Good bookkeeping setup makes the right tax happen in the background, job after job.
Here’s what that looks like at ClearLedgers:
- Items set up the right way. Taxable and non-taxable items are built into QuickBooks Online and matched in your field service software, whether that’s Jobber, ServiceTitan, or Housecall Pro. Your techs pick the job type, and the invoice follows the right rule.
- Parts and labor on separate lines. Every repair invoice itemizes them, so labor stays tax-free where it should be.
- A monthly use tax check. We review vendor bills and card charges each month for untaxed purchases, so use tax gets reported before an auditor finds it.
- Returns that tie to the books. Your sales and use tax returns are filed on time, zero returns included, and they match what’s in your books. That’s the core of our Sales Tax Management service.
- Tax built into job costs. Because the tax you pay on materials is tracked as a job cost through Full-Service Bookkeeping, your margins and your next bid reflect what jobs really cost.
We work with trade businesses across metro Atlanta and Georgia, from Marietta to Cumming to Dacula, and you can see more about how we support plumbers, electricians, HVAC companies, and other trades on our Home & Field Services page.
This article is general information about Georgia sales and use tax as it applies to contractors, current as of October 2026. It isn’t tax or legal advice. Tax treatment depends on the specific facts of each job, so confirm how the rules apply to your business with your CPA or the Georgia Department of Revenue.
