What it means
The label is a tax and legal classification rather than a job description. What matters is control and risk, so someone who sets their own hours, supplies their own tools and can profit or lose from how the work goes is usually self-employed regardless of what a contract calls them.
The most important financial consequence is that nothing is withheld for you. An employee's income tax and payroll contributions come out before the money lands, whereas a self-employed person receives gross amounts and must set aside their own tax, typically paying in instalments through the year.
Self-employed people also pay both halves of social insurance contributions, since there is no employer to cover a share. This is why a freelance day rate needs to be meaningfully higher than the equivalent employee salary to leave the same amount in hand.
Against that, they can deduct genuine business expenses from income before tax is calculated. Equipment, professional subscriptions, business travel and a properly apportioned share of home office costs all reduce taxable profit, which is why careful bookkeeping is worth real money.
The category is not the same as being incorporated. Once someone forms a limited company and pays themselves a salary from it, they are usually an employee of that company for tax purposes, even though they own it outright.
In practice
Real-world examples.
Example
A freelance graphic designer bills $7,500 in a strong month and immediately transfers 30% into a separate tax account. When the quarterly instalment falls due she pays it from that account rather than scrambling for cash out of the operating balance.
Example
A self-employed plumber buys a $28,000 van used entirely for work and deducts it against business profit under the applicable capital allowance rules. His accountant points out that the personal use of a second vehicle is not deductible, so only the work van goes through the business.
Example
A part-time consultant keeps a salaried role three days a week and takes consulting work on the other two. Her employer withholds tax on the salary, but she must file and pay separately on the consulting profit, and she adjusts her instalments upward after a busy quarter.
Formula
Calculation
Net self-employment income = gross revenue - allowable business expenses
Self-employment tax = net income x 92.35% x 15.3%
An independent management consultant invoices $120,000 over a year and incurs $34,000 of allowable expenses covering software, professional insurance, travel and a share of home office costs. Net self-employment income is 120,000 - 34,000 = $86,000.
Self-employment tax is calculated on 92.35% of that net figure, so the base is 86,000 x 0.9235 = $79,421. Applying the combined 15.3% rate gives 79,421 x 0.153 = $12,151 in round figures.
Half of that amount, 12,151 / 2 = $6,076, is deductible when working out income tax, so the consultant's taxable income for income tax purposes is 86,000 - 6,076 = $79,924. The practical planning point is that roughly $12,151 of the $86,000 profit is already committed before any income tax is considered, so setting aside about a third of every invoice is a sensible habit.Case study
Seen in the real world.
Priya Nandakumar is an illustrative, fictional freelance copywriter who left an in-house role paying $78,000 a year and set her freelance day rate at $400. In her first year she billed 180 days, generating $72,000, and assumed she was roughly where she had been before.
She had not accounted for the missing employer contributions, the absence of paid leave, or the $9,000 of expenses she now covered herself. After expenses of $9,000 her net income was $63,000, and self-employment tax of roughly $8,900 left materially less in hand than the old salary once unpaid holiday was factored in. In year two she raised her rate to $560 a day and billed 175 days for $98,000, which after the same $9,000 expense base left net income of $89,000 and finally cleared her old package.
This fictional example illustrates the most common miscalculation in going self-employed: comparing a day rate to a salary without pricing in the benefits and contributions an employer used to absorb.
Watch out
Common mistakes.
- Setting a freelance rate by dividing an old salary by working days, which ignores unpaid leave, unbilled admin time and the employer contributions you now cover yourself.
- Spending the full value of invoices as they arrive, then facing a tax instalment with no reserve set aside.
- Mixing personal and business spending in one account, which makes it almost impossible to evidence deductions if the return is ever questioned.
Questions
People also ask.
Is a self-employed person the same as a sole trader?
In everyday use they overlap heavily, though sole trader describes the legal structure while self-employed describes the tax status.
Can a self-employed person have employees?
Yes, a sole trader can hire staff and run payroll while remaining self-employed themselves in relation to the business profit.
How much should I set aside for tax?
A common rule of thumb is 25% to 35% of net profit, adjusted once you know your actual rate band and contribution position.
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