Payroll and Expenses
The difference between an employee and a contractor is not just a label — it is a legal, tax, and compliance minefield. Here's everything you need to know about payroll, expense tracking, W-2s, 1099s, and staying out of trouble.
The startup that misclassified everyone
In 2015, a food delivery startup in California had 400 drivers. They called them "independent contractors" — no benefits, no payroll taxes, no overtime, no workers' compensation insurance. The drivers used their own cars, set their own schedules, and got paid per delivery.
The state of California disagreed.
After an investigation, regulators determined the drivers were actually employees — the company controlled their routes, set delivery standards, required branded uniforms, and the drivers' work was integral to the core business. The ruling triggered $12 million in back payroll taxes, penalties, and unpaid benefits. The company was also on the hook for unemployment insurance, workers' compensation claims, and overtime pay for every driver who worked more than 40 hours.
The founders argued it was a grey area. The IRS and the California Employment Development Department argued it was not. When you control how work is done (not just what work is done), the worker is an employee — regardless of what your contract says.
This distinction — employee vs. independent contractor — is one of the most consequential decisions a business makes. Get it wrong, and the penalties can destroy you.
Employee vs. independent contractor
The distinction comes down to control and independence:
| Factor | Employee (W-2) | Independent contractor (1099) |
|---|---|---|
| Who controls how work is done | The company directs methods and processes | The worker decides how to complete the work |
| Schedule | Company sets hours and schedule | Worker sets their own hours |
| Tools and equipment | Company provides them | Worker provides their own |
| Exclusivity | Usually works for one employer | Free to work for multiple clients |
| Training | Company provides training | Worker brings their own expertise |
| Payment | Regular salary or hourly wage | Per project, per deliverable, or hourly |
| Duration | Ongoing, indefinite relationship | Project-based or defined term |
| Integration | Work is integral to business operations | Work is supplementary or specialised |
✗ Without AI
- ✗Company withholds income tax, SS, Medicare
- ✗Company pays employer portion of FICA (7.65%)
- ✗Eligible for benefits (health, retirement, PTO)
- ✗Protected by labour laws (overtime, minimum wage)
- ✗Company pays unemployment insurance
- ✗Company liable for workers' compensation
- ✗File Form W-2 at year end
✓ With AI
- ✓No withholding — worker pays own taxes
- ✓Worker pays full self-employment tax (15.3%)
- ✓No benefits from the hiring company
- ✓Not covered by most labour laws
- ✓No unemployment insurance obligation
- ✓Worker carries own insurance
- ✓File Form 1099-NEC if paid $600+
The IRS uses a three-factor test to determine classification:
- Behavioural control — Does the company control how the work is done?
- Financial control — Does the company control the business aspects (payment method, expenses, opportunity for profit/loss)?
- Relationship type — Is there a written contract? Benefits? Permanency?
If the answer to most of these is "the company controls it," the worker is an employee — even if both parties agreed to a contractor arrangement.
There Are No Dumb Questions
"Can a worker agree to be a contractor even if the IRS would classify them as an employee?"
No. Classification is determined by the actual working relationship, not by what the contract says. You cannot sign away employee status. The IRS looks at how the work is actually performed, not what the paperwork claims. A contract that says "independent contractor" while the worker follows a company schedule, uses company equipment, and cannot work for anyone else will be reclassified by the IRS on audit.
"Why would a company want to misclassify workers?"
Money. Contractors are cheaper — no employer FICA taxes (7.65%), no unemployment insurance, no benefits, no overtime, no workers' compensation. For a company with 100 workers, the savings can be hundreds of thousands of dollars per year. That is why regulators audit aggressively — the incentive to misclassify is enormous.
Payroll: what it involves
Running payroll means calculating, withholding, and remitting taxes for every employee, every pay period. Here is what goes into a single paycheck:
Gross pay
The total amount before any deductions. For salaried employees: annual salary divided by number of pay periods. For hourly employees: hours worked x hourly rate (plus overtime at 1.5x for hours over 40/week under the Fair Labour Standards Act).
Employee withholdings (deducted from gross pay)
- Federal income tax — Based on the employee's W-4 form (filing status and allowances)
- State income tax — Varies by state (0% in Florida, Texas, etc.; up to 13.3% in California)
- Social Security — 6.2% of wages up to $168,600 (2024)
- Medicare — 1.45% of all wages (additional 0.9% on wages over $200,000)
- Benefits — Health insurance premiums, retirement contributions, etc.
Employer-paid taxes (additional cost to the company)
- Employer Social Security — 6.2% (matching the employee's share)
- Employer Medicare — 1.45% (matching the employee's share)
- Federal unemployment (FUTA) — 6% on first $7,000 of wages (effectively 0.6% after state credit)
- State unemployment (SUTA) — Varies by state and employer's claims history
Net pay (what the employee takes home)
Gross pay minus all employee withholdings = the number on the paycheck. For a $75,000/year salary, the employee might take home around $55,000-60,000 after all deductions.
Calculate the True Cost
25 XPPayroll compliance: what you must do
Payroll has more compliance requirements than almost any other area of business accounting. Miss a deadline and penalties start immediately.
| Requirement | Frequency | Form/Action |
|---|---|---|
| Deposit withheld taxes | Semi-weekly or monthly (depends on total tax liability) | Electronic payment via EFTPS |
| Report wages and taxes | Quarterly | Form 941 (Employer's Quarterly Tax Return) |
| Report federal unemployment | Annually | Form 940 |
| Issue wage statements to employees | Annual (by January 31) | Form W-2 |
| Report contractor payments | Annual (by January 31) | Form 1099-NEC (for payments of $600+) |
| New hire reporting | Within 20 days of hire | State-specific form |
Most small businesses use payroll services (Gusto, ADP, Paychex, QuickBooks Payroll) rather than handling payroll manually. The cost — typically $40-100/month plus $4-8 per employee — is trivial compared to the risk of errors and penalties.
Expense tracking: the foundation of good accounting
Every dollar your business spends should be categorized, documented, and recorded. This matters for three reasons:
- Tax deductions — You can only deduct what you can prove. No receipt, no deduction.
- Financial visibility — You cannot manage what you do not measure.
- Audit protection — If the IRS audits you, documentation is your defence.
Expense categories
A standard small business uses categories like these:
| Category | Examples |
|---|---|
| Cost of goods sold | Raw materials, inventory, manufacturing costs |
| Payroll | Salaries, wages, payroll taxes, benefits |
| Rent & utilities | Office rent, electricity, water, internet |
| Marketing & advertising | Ads, sponsorships, design, print materials |
| Professional services | Legal, accounting, consulting |
| Travel & transportation | Flights, hotels, mileage, rideshares for business |
| Office supplies | Paper, pens, furniture, cleaning supplies |
| Software & subscriptions | SaaS tools, cloud services, domain names |
| Insurance | Business liability, health, workers' comp |
| Meals & entertainment | Business meals (50% deductible) |
| Depreciation | Annual value reduction of equipment and property |
There Are No Dumb Questions
"Should I use a personal credit card for business expenses?"
No. Get a separate business credit card and business bank account from day one. Mixing personal and business expenses makes bookkeeping a nightmare, weakens the liability protection of your LLC or corporation, and creates headaches at tax time. A separate business account also makes it trivial to track and categorize expenses.
"What about reimbursements? If an employee pays for something and I reimburse them?"
The reimbursement is a business expense — not income to the employee (as long as you have an accountable plan: the employee submits receipts, the expense has a business purpose, and any excess reimbursement is returned). Without an accountable plan, reimbursements are treated as taxable income to the employee.
Classify the Worker
50 XPExpense reimbursement policies
When employees spend their own money on business expenses, you need a clear reimbursement policy. The IRS requires an accountable plan for reimbursements to be tax-free:
Three requirements of an accountable plan:
- The expense must have a business connection — it was incurred while performing services for the company
- The employee must substantiate the expense within a reasonable time (usually 60 days) — receipts, date, amount, business purpose
- Any excess reimbursement must be returned within a reasonable time (usually 120 days)
If any requirement is not met, the reimbursement becomes taxable income to the employee.
Best practices for expense reimbursement:
- Set clear spending limits by category (e.g., meals up to $50/person, hotels up to $200/night)
- Require receipts for everything over $25
- Use expense management software (Expensify, Ramp, Brex) to automate submissions and approvals
- Process reimbursements within one to two pay periods
- Define what is and is not reimbursable in writing
Build the Expense Policy
25 XPKey takeaways
- Employee vs. contractor classification is determined by the IRS, not your contract. Control over how work is done is the key factor. Misclassification triggers severe penalties.
- Payroll involves withholding, matching, and depositing multiple taxes — federal income, state income, Social Security, Medicare, and unemployment. The total employer burden is roughly 25% above the base salary.
- Payroll taxes are trust fund taxes. Late deposits trigger immediate penalties. Use a payroll service — the cost is trivial compared to the risk.
- Track every business expense with receipts and categorization. No documentation means no deduction and no audit defence.
- Keep personal and business finances completely separate from day one. Separate bank account, separate credit card.
- Reimbursements require an accountable plan to be tax-free — business connection, substantiation, and return of excess.
Knowledge Check
1.A worker uses their own equipment, works from home, sets their own hours, has five other clients, and bills per project. However, the company's contract labels them as an 'employee.' How would the IRS likely classify this worker?
2.An employee earns a $80,000 salary. Approximately how much does the employer pay in total (salary plus employer-side payroll taxes and typical benefits)?
3.An employee buys a $200 dinner with a client to discuss a new project and submits the receipt to their employer for reimbursement. Under an accountable plan, what is the tax treatment?
4.Why are payroll tax penalties more severe than income tax penalties?