1099 Subcontractors: What Home Builders Need to Know
A 1099 subcontractor is an independent business you pay for trade work without withholding payroll taxes, and whose payments you may have to report to the IRS on an information return at year end. For a home builder, the basics are short: collect a W-9 before the first payment, make sure the trade really operates as an independent business, keep clean payment records, and have your CPA handle the filing rules. The reporting thresholds and deadlines change, so I’m not going to quote them here. Your CPA will have the current ones.
Nearly every house in this country is built by 1099 subcontractors. It’s a normal, legitimate way to run a building company. It’s also an area where sloppy habits turn into back taxes and penalties, so it’s worth an hour of your attention.
What is a 1099 subcontractor?
It’s a trade partner who is in business for themselves, as opposed to an employee on your payroll. The name comes from the 1099 series of IRS forms used to report payments to non-employees.
The practical differences look like this:
Employee. You withhold income and payroll taxes, pay the employer’s share, carry workers’ comp on them, and issue a W-2.
1099 subcontractor. You pay the invoice in full. They handle their own taxes, insurance, tools, and crew. You report what you paid them if the reporting rules require it.
Your framer, plumber, electrician, and painter are typically subcontractors. Your superintendent and your office manager typically are not.
Subcontractor vs. employee: how is classification decided?
Classification depends on the actual working relationship, not on what you call it and not on which form you hand out. A signed agreement that says “independent contractor” helps, but it doesn’t settle the question if the day-to-day reality says otherwise.
In general terms, agencies look at things like:
Control over the work. Do you tell them what result you need, or do you direct how, when, and in what order they do every task?
Financial independence. Do they have their own tools, equipment, insurance, and business expenses? Can they make or lose money on the job?
Other customers. Do they work for other builders, or only for you, full time, indefinitely?
The nature of the relationship. Is there a contract for a defined scope, or an open-ended arrangement that looks a lot like a job?
The IRS has its own test, and states have theirs. Some state tests are considerably stricter than the federal one, and state workers’ comp and unemployment agencies may apply different standards again. The gray-area cases in home building are usually the “helper” paid by the hour, the punch-out guy who only works for you, and the superintendent on a 1099. If you have one of those, talk to your CPA or an employment attorney before someone else raises the question for you.
Do I need to send a 1099 to subcontractors?
Often, yes. In general, a business that pays a non-employee for services above a certain amount during the year has to report those payments to the IRS and send a copy to the payee. Whether a specific payee needs one depends on things like how much you paid, their entity type, and how you paid them.
Notice I haven’t given you a dollar figure or a due date. Those change, and an article like this is the wrong place to get them. Ask your CPA every year for the current threshold, the current deadline, and which of your vendors are reportable. Some states have their own filing requirements too.
What are the 1099 subcontractor requirements for a builder?
The 1099 subcontractor requirements that matter day to day are mostly about collecting information early and keeping records all year. Here’s the routine:
Collect a W-9 before the first payment. It gives you the legal name, entity type, and taxpayer ID you’ll need at year end. Before the first check, you have leverage. After the last check, you have a voicemail box that’s full.
Match the names. The name on the W-9 should match the name on the agreement, the insurance certificate, and the invoices.
Pay the business, not the person. Make payments to the entity on the W-9, and never in cash without a record.
Track payments by vendor. Your accounting system should be able to produce a total paid to each trade for the year without an archaeology project.
Give your CPA the list early. Don’t wait for the week of the deadline. Let them tell you who gets a form and file on time.
Update W-9s when things change. New entity, new name, new tax ID, new form.
The W-9 is one of seven documents I want on file before a trade starts. The full list is in the subcontractor paperwork checklist, and our Subcontractor Paperwork Package puts that paperwork into one system.
What 1099 subcontractor rules trip builders up?
Most problems come from a handful of habits. These are the 1099 subcontractor rules of thumb I’d pay attention to:
A W-9 doesn’t make someone a contractor. It only gives you tax information. The working relationship decides classification.
Uninsured subs can become your problem. If a trade has no workers’ comp, your carrier may charge you for them at audit, and an injured worker may look to you. Rules vary by state. See subcontractor insurance requirements.
Missing taxpayer IDs have consequences. If a payee won’t give you a valid ID, you may be required to withhold from their payments. Ask your CPA how that works before you pay.
Paperwork should match reality. A solid subcontractor agreement states the independent contractor relationship and backs it up with terms that actually reflect independence.
Year end is too late. Everything that makes filing easy happens at onboarding.
How do you set this up so it runs without you?
Make it a gate in your accounts payable process. A new vendor can’t be set up in your accounting system without a W-9. A vendor without a W-9 can’t be paid. That’s it. One rule, enforced by whoever cuts the checks, and the year-end scramble mostly goes away.
Then put a recurring reminder on your calendar to send your vendor payment report to your CPA well ahead of filing season. They’ll tell you what’s due and when. Your job is to hand them clean data.
Frequently asked questions
What is the difference between a 1099 subcontractor and a W-2 employee?
An employee is on your payroll with taxes withheld. A 1099 subcontractor runs their own business and handles their own taxes and insurance. Which one someone is depends on the working relationship, and the tests vary between the IRS and the states.
When should I collect a W-9 from a subcontractor?
Before the first payment, as part of onboarding. Make it a condition of being set up as a vendor.
Do I send a 1099 to a subcontractor that is an LLC or corporation?
It depends on how the entity is taxed and the type of payment, and there are exceptions in both directions. Collect a W-9 from everyone and let your CPA decide who gets a form.
What happens if I misclassify an employee as a 1099 subcontractor?
You can face back taxes, penalties, and workers’ comp or unemployment claims, and the consequences vary by state. If you have a borderline case, get advice from your CPA or an employment attorney now.
BTW, if you want the W-9 and the rest of your trade partner paperwork collected the same way every time, grab our Subcontractor Paperwork Package over at the Building Optimal Shop, where you can check out the rest of our swag to build a better business. Proceeds go to benefit, Exponencialistas, my non-profit investing in entrepreneurs transforming their communities in Latin America.

