Jessica I. Marschall, CPA, ISA AM, October 21^st, 2025

Worker Classification: IRS Framework

The IRS uses a three-factor test to determine worker status:

• Behavioral control: Who directs what work is done and how
• Financial control: Who provides tools, reimburses expenses, and determines payment structure
• Relationship: Written contracts, benefits, permanency, and whether services are core to your business

If you retain the right to control work details, the worker is generally an employee.

Key tool: Form SS-8 requests IRS determination. The IRS maintains a searchable database of redacted determinations for reference.

DOL Rule Update

The Department of Labor’s Fair Labor Standards Act rule (effective March 11, 2024) uses a six-factor “economic reality” test for worker classification. While distinct from IRS standards, many businesses align practices across both. The rule survived initial legal challenges, including a January 10, 2025 New Mexico decision.

Tax Consequences

Misclassification triggers liability for:

• Federal income tax withholding
• Employer and employee FICA shares
• FUTA taxes
• Accuracy and information return penalties
• Backup withholding issues

Workers receiving 1099-NEC when believing they’re employees should file Form 8919 for proper Social Security and Medicare tax treatment.

1099-NEC Requirements

• Use for: Nonemployee compensation in trade/business (not personal payments)
• Due date: January 31 to both recipients and IRS
• Threshold: $600 or more

2024-2026 Reporting Updates

Electronic filing: Required for 10+ information returns annually (all W-2s and 1099s combined)

Form 1099-K thresholds (third-party network transactions):

• 2024: $5,000
• 2025: $2,500
• 2026+: $600

Deadlines:

• Most 1099 recipient copies: January 31
• Paper filing (if allowed): February 28
• E-filing: March 31
• Exception: 1099-NEC always January 31 for both

2025 Penalties (per form):

• Within 30 days: $60
• By August 1: $130
• After August 1: $330
• Intentional disregard: $660
• (Increases for 2026)

Extensions: 30-day automatic extension available via FIRE or Form 8809 (except 1099-NEC)

Backup Withholding

• Rate: 24% flat
• Triggers: Missing/incorrect TIN or IRS underreporting notice
• Process: Follow CP2100/CP2100A notices and B-Notice procedures per Publication 1281

Compliance Workflow

1. Collect W-9 before first payment
2. Track payments; issue 1099-NEC at $600 threshold
3. E-file via FIRE when reaching 10+ returns
4. Monitor 1099-K phased thresholds
5. Respond promptly to IRS notices
6. Calendar January 31 as hard deadline for 1099-NEC

Bottom Line

Use W-2 when you control how work is performed. Use 1099-NEC when purchasing services from independent businesses. Maintain strong W-9 collection and backup withholding processes. Stay current with phased 1099-K thresholds through 2026 and comply with the 10-return e-filing requirement.

What taxes does a 1099 contractor owe?

Federal income tax

• You pay federal income tax on your net profit from the business. Net profit equals business income minus ordinary and necessary business expenses.
• You usually make quarterly estimated tax payments using Form 1040-ES. Safe harbors to avoid penalties are:
  • Pay 90 percent of current year total tax, or
  • Pay 100 percent of last year’s total tax (110 percent if last year’s AGI exceeded the high-income threshold).
• Due dates are generally April 15, June 15, September 15, and January 15 of the following year.

Self-employment tax

• Covers both the employee and employer portions of Social Security and Medicare.
• Tax base: 92.35 percent of your net profit from Schedule C.
• Rates:
  • Social Security 12.4 percent, applied to net earnings up to the annual wage base.
  • Medicare 2.9 percent on all net earnings.
  • Additional Medicare 0.9 percent on combined wages and self-employment income above the statutory thresholds.
• You also get an above-the-line deduction for one half of your self-employment tax on Schedule 1. This reduces adjusted gross income but does not reduce the self-employment tax itself.

State and local taxes

• State income tax: Most states tax your net profit. File in your state of residence and, when applicable, in other states where you earned income.
• Local income or gross receipts taxes: Some cities and localities impose their own business or occupational taxes.
• Sales and use tax: If you sell taxable goods or taxable services in your state, you may need to collect and remit sales tax. Rules vary by state and by service type.
• Business personal property tax and business license fees: Some jurisdictions assess annual tax on equipment or require a license.

How to report as a sole proprietor

Schedule C (Profit or Loss From Business)

Report all business income and expenses.

Income

• 1099-NEC amounts for services.
• 1099-K amounts from third-party networks or card processors.
• Any other business receipts not reported on a 1099.

Typical deductible expenses

• Advertising and marketing.
• Car and truck expenses. Choose standard mileage or actual expenses. Keep a contemporaneous mileage log.
• Contract labor and subcontractors. If you pay a noncorporate service provider 600 dollars or more in your trade or business, you likely must issue a 1099-NEC.
• Depreciation and amortization. Use Form 4562. Consider Section 179 expensing and bonus depreciation where eligible.
• Dues and subscriptions that are ordinary and necessary for your trade.
• Insurance other than health (for example liability or business property).
• Legal and professional fees, including tax prep attributable to the business.
• Office expense and supplies.
• Rent for business property or equipment.
• Repairs and maintenance.
• Travel, lodging, and 50 percent of business meals with proper records.
• Utilities, internet allocated to business use.

Home office (if applicable)

• Space must be used regularly and exclusively for business.
• Deduct actual expenses through Form 8829 or use the simplified method (5 dollars per square foot up to 300 square feet).
• Home office can also allow separate deductions for business miles from your home.

After Schedule C

• Net profit flows to Schedule SE to compute self-employment tax, then to Form 1040.
• You may take additional adjustments on Schedule 1 such as self-employed health insurance and retirement plan contributions.

Qualified Business Income (QBI) deduction

• Many sole proprietors qualify for a deduction of up to 20 percent of qualified business income under Section 199A.
• QBI starts with your Schedule C net profit and is reduced by the deduction for one half of self-employment tax, the self-employed health insurance deduction, and self-employed retirement plan contributions.
• If your taxable income is below the annual threshold, you generally get the full 20 percent of QBI, limited to 20 percent of taxable income minus capital gains.
• If your taxable income is above the threshold, limits can apply based on W-2 wages paid by the business and the unadjusted basis of qualified property. For certain specified service trades or businesses, the deduction phases out at higher incomes.
• Claim the deduction on Form 8995 or 8995-A.

Health insurance and retirement planning

• Self-employed health insurance deduction: Premiums for medical, dental, and qualified long term care may be deductible on Schedule 1, subject to earned income and other rules. This deduction also reduces QBI.
• Health Savings Account: If you have an HSA-eligible high deductible health plan, contributions are deductible and can be made personally or through the business.
• Retirement plans: SEP-IRA, Solo 401(k), or SIMPLE IRA can reduce current tax and may also reduce QBI because they reduce business income at the owner level. Choose based on income level, desired contribution room, and whether you have employees.

Recordkeeping and compliance checklist

• Collect and retain invoices, receipts, bank and card statements, mileage logs, and contemporaneous notes to support all deductions.
• Track and pay quarterly estimates for income tax and self-employment tax.
• Issue 1099-NEC to eligible vendors you paid for services in your trade or business.
• Reconcile 1099-K forms to your books. Confirm duplicates are not double counted.
• Consider a separate business bank account and accounting software to maintain clean books.

Quick example of self-employment tax math

Let “Net Profit” be your Schedule C profit.

1. Net earnings for SE tax = Net Profit × 92.35 percent.
2. Social Security tax = 12.4 percent of net earnings up to the annual wage base.
3. Medicare tax = 2.9 percent of all net earnings.
4. Additional Medicare tax = 0.9 percent of wages plus SE income above the threshold.
5. Deduct one half of the total SE tax on Schedule 1.

When to seek help

• If you work in multiple states.
• If you plan significant equipment purchases or have large home office or vehicle deductions.
• If your income is near or above the QBI thresholds.
• If you hire workers and must decide W-2 versus 1099 and handle your own 1099 filing obligations.

When to Open an LLC and How to Use an EIN on Form W-9

When to Form an LLC

Forming a Limited Liability Company (LLC) can be a strategic move for independent contractors, freelancers, or small business owners who want to separate business and personal finances while maintaining flexibility in management and taxation.

You should consider forming an LLC when:

• You are earning self-employment income and want to protect personal assets from business liabilities.
• You work with multiple clients or subcontractors and want to establish a more professional business structure.
• You need to open a business bank account, sign commercial leases, or enter contracts under a legal entity name.
• You expect to hire employees or independent contractors in the future.
• You wish to take advantage of pass-through taxation and potential Qualified Business Income (QBI) deductions.
• You want the option to elect S-Corporation taxation later to reduce self-employment taxes once net profits exceed roughly $60,000–$80,000 per year.

Forming an LLC provides limited liability protection, meaning your personal assets are generally shielded from lawsuits or debts incurred by the business, provided you maintain proper separation (separate accounts, contracts, and records).

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Filling Out Form W-9 with an EIN

When clients request a Form W-9, it identifies your taxpayer information for reporting payments to the IRS.

If you’ve formed an LLC and obtained an Employer Identification Number (EIN), you can use it instead of your personal Social Security Number (SSN).

How to complete the key sections:

1. Name (Line 1):
   Enter your individual name if you are a single-member LLC disregarded for tax purposes, or the LLC’s name if it is a partnership or S-Corporation.
2. Business name (Line 2):
   Enter the LLC’s legal name (as shown on your Articles of Organization) if it differs from your personal name.
3. Federal tax classification (Line 3):
   • Check “Individual/sole proprietor or single-member LLC” if the LLC is disregarded (most common for single owners).
   • Check “Limited liability company” and write the tax classification (C, S, or P) if the LLC has elected corporate or partnership treatment.
4. Address (Lines 5–6):
   Use your business mailing address where tax forms should be sent.
5. Taxpayer Identification Number (Part I):
   • If you operate as a single-member LLC using an EIN, list that EIN in the business line.
   • If you are operating as a sole proprietor without an LLC, you can provide your SSN instead.
6. Signature (Part II):
   Sign and date to certify accuracy and that you are not subject to backup withholding.

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Why Use an EIN Instead of an SSN

• Privacy protection: Keeps your SSN off client records and vendor databases.
• Professional presentation: Signals that you are operating as a legitimate business entity.
• Banking and payroll setup: Required for business bank accounts, merchant processing, and 1099 filing for your subcontractors.
• IRS compliance: Allows correct reporting under your business entity name rather than your personal name.

You can obtain an EIN instantly and free of charge from the IRS at irs.gov/ein. It takes about five minutes online and provides the number immediately upon completion.

WORKER CLASSIFICATION & 1099 REPORTING CHECKLIST

1 | Is this person an employee (W-2) or an independent contractor (1099)?

Use a quick checklist. If you answer “Yes” to most of the employee-side questions, treat as a W-2 worker. If you answer “Yes” to most of the contractor indicators below, you’re likely looking at a 1099 scenario.

Employee indicators

• We direct when, where, and how the work is done. IRS+2IRS+2
• We supervise or train the worker in how to perform the job. Gloroots+1
• We provide tools, materials, or workspace. Michigan+1
• The worker is integral to our business, works full-time, has an ongoing relationship. GRF CPAs & Advisors+1
• We pay by hour or salary rather than by project, and reimburse expenses. IRS+1

Independent contractor indicators

• The worker controls how the work is done, uses their own methods, chooses when/where to work. myBasePay+1
• The worker has a significant investment in tools/equipment, can hire their own assistants, and can suffer profit or loss. GRF CPAs & Advisors+1
• The relationship is project-based or finite rather than ongoing, nonexclusive, and the worker offers services to the general public. Gloroots+1
• Paid by project or fee, not treated like a typical payroll employee; bears business expenses. IRS

Decision rule:

• If employee indicators dominate → classify as employee, issue W-2, withhold taxes.
• If contractor indicators dominate → classify as independent contractor, issue 1099-NEC (if applicable).
• If it’s unclear → document facts and consider filing Form SS‑8 for IRS determination. IRS+1

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2 | 1099-NEC & other information returns: key items

Forms and thresholds

• Use Form 1099‑NEC to report nonemployee compensation paid in your trade or business. IRS+1
• Recipient and IRS copies must be furnished by January 31 each year (for 1099-NEC). IRS
• Electronic filing required if you file 10 or more information returns (including W-2s and 1099s) in a year.
• For Form 1099‑K, note the phased thresholds: $5,000 for 2024, then $2,500 for 2025, then $600 for 2026 onward.

TIN solicitation & backup withholding

• Before paying a contractor, obtain a completed Form W‑9 (Request for Taxpayer Identification Number).
• If the payee does not provide a valid TIN or the IRS notifies of backup-withholding status, you must withhold at 24%.
• Respond to CP2100/CP2100A notices by sending B-Notices and performing annual solicitations.

Penalties for late or incorrect filing

• Late or missing filings trigger penalties (as of 2025: ~$60 per form if filed within 30 days, ~$130 if by Aug 1, ~$330 after Aug 1, ~$660 for intentional disregard).
• Misclassification may result in owing withheld income tax, employer/employee FICA, FUTA, and accuracy-related penalties.

Suggested calendar items

• January 31: Issue recipient copies of 1099-NEC and file recipient/IRS copies.
• February (or earlier): Prepare W-9s, re-solicit missing TINs, review contractor list.
• March 31 (if applicable): E-file other 1099s (if 1099-NEC not required) and any returns allowed later.
• Ongoing: Retain contracts, invoices, W-9 forms, proof of payment and business status for contractors.

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3 | Client decision-tree

1. Do you direct how the work is done (schedule, methods, training)?
    • Yes → lean toward employee
    • No → go to 2
2. Does the worker have a meaningful investment in tools/equipment, and the ability to hire assistants and suffer profit/loss?
    • Yes → lean toward contractor
    • No → go to 3
3. Is the work relationship indefinite, full-time, integral to your business, and paid like an employee?
    • Yes → employee
    • No → contractor
4. If still unclear → classify conservatively (employee) or file Form SS-8.

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4 | Signature & record-keeping

• Keep a signed contract indicating independent contractor status (but remember contract language is only one factor).
• Maintain W-9s, invoices, proof of payments, business licenses of contractors, evidence of project-based work, business signage of contractor, etc.
• Review classification annually for repeat service providers.

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5 | Summary for your business

Correct classification protects your business from tax, penalty and legal risk. If you control how work is done, treat the person as an employee and issue a W-2. If the individual runs their own business, controls the means of performing services, and works for multiple clients, you likely issue a 1099-NEC. Stay current with e-file rules, deadlines, backup-withholding obligations, and phased thresholds for 1099-K. Document your decisions in case of audit.