What a sole proprietorship is
A sole proprietorship is an unincorporated business owned by one person. The owner makes the decisions, receives the profit, claims any loss, and is not legally separate from the business. That last point matters: business responsibilities and risks can reach the owner's personal assets. This guide explains record-keeping and tax basics, but it cannot tell you whether this structure is right for your liability, financing, or family situation.
A mechanic working alone, a cleaner taking weekend jobs, or a landscaper billing customers under their own name may be operating as a sole proprietor even if the business is still small. Registering a business name, getting local permits, and registering for tax accounts are separate questions that depend on the name, activity, province, territory, and municipality.
Revenue, expenses, and profit are different
Revenue is the amount earned from customers before business costs. Expenses are costs connected with earning business income, subject to the rules that determine whether and when they may be claimed. Profit, often called net business income in tax material, is what remains after allowable business expenses are subtracted from revenue.
A simple service-job example
A mobile repair owner bills $1,000 for labour and parts. If qualifying business costs connected with that work total $400, the simple operating profit is $600 before other tax adjustments. The $1,000 is revenue; it is not the same as profit and it is not automatically the amount on which personal income tax is calculated.
The CRA says a sole proprietor pays personal income tax on the net income generated by the business. In plain language, income tax is generally connected to taxable profit, not total customer billings. Your final taxable income may also include other income and adjustments, so a basic revenue-minus-expenses example cannot predict your tax bill.
Business income generally has to be reported
The CRA describes business income as income from an activity carried on for profit and says to include business income when calculating income for tax purposes. For a typical service-business sole proprietor, income or loss is reported with the owner's T1 income tax and benefit return.
The CRA's Form T2125, Statement of Business or Professional Activities, is generally used to report business or professional income and expenses. It organizes gross sales, cost of goods sold where applicable, expense categories, capital cost allowance, and the resulting net income or loss. Farming, fishing, and some other situations use different forms, so “every sole proprietor files only T2125” would be too broad.
Good invoices help establish what was billed, to whom, and when. Handoff can retain customers, job details, invoice totals, tax lines, and payment status, but those sales records are only one part of the information needed for a tax return.
CPP considerations for self-employed people
Self-employed workers do not have an employer withholding its half of Canada Pension Plan contributions from each paycheque. The CRA says that, outside Quebec, a self-employed person generally has to contribute when net self-employment income or pensionable employment income is more than $3,500, and the calculation is completed with the income tax and benefit return.
Annual contribution ceilings and calculations can change. Quebec residents generally deal with the Quebec Pension Plan instead. This is one reason a first-year owner can owe more at filing time than expected even when the business's income-tax estimate seemed manageable.
Income tax and GST/HST are not the same tax
Income tax generally follows net business income. GST/HST is a sales-tax system: a registrant charges the applicable tax on taxable supplies, keeps records, files GST/HST returns, and sends net tax to the CRA. Money collected as GST/HST is not ordinary profit to spend; the CRA says registrants are responsible for holding collected GST/HST in trust until it is remitted.
The $30,000 small-supplier threshold
For most businesses, the federal GST/HST small-supplier test uses a $30,000 threshold based on worldwide taxable supplies, including the relevant supplies of associated persons. It is not safely summarized as “$30,000 of annual profit.” Exempt supplies, associated businesses, taxi or ride-sharing activities, and other special cases can change the answer.
The exact registration date depends on how the threshold is exceeded:
- More than $30,000 in one calendar quarter: the CRA says small-supplier status ends on the supply that takes the total over the threshold, and GST/HST can apply to that supply.
- More than $30,000 over previous consecutive calendar quarters, but not in one quarter: small-supplier status ends later under the CRA's end-of-month timing rule, and the effective registration date is tied to the first taxable supply after that point.
Those summaries are not a substitute for the CRA's table and examples. If sales are approaching the threshold, track taxable supplies by calendar quarter and confirm the effective date directly with the CRA or a professional. Read the focused guide to GST/HST small-supplier rules.
Voluntary registration and input tax credits
An eligible small supplier making taxable supplies may register voluntarily. Registration brings ongoing duties: charging and collecting the correct GST/HST, filing returns, remitting net tax, and staying registered for the required period. It may also allow the business to claim input tax credits for GST/HST paid or payable on eligible purchases used in commercial activities.
Voluntary registration is not automatically better. Customer type, expected purchases, pricing, administrative capacity, exempt activities, and mixed personal use can all matter.
Provincial sales taxes are separate
GST/HST registration does not answer every provincial sales-tax question. HST combines federal and provincial components in participating provinces, while separate PST or QST rules may apply elsewhere. The CRA's place-of-supply guidance determines the GST/HST rate. This first guide does not attempt to cover each province; check the official provincial authority wherever you make sales or perform work.
Current expenses, capital property, and CCA
The CRA says a business can generally deduct reasonable current expenses incurred to earn business income, subject to specific limits and conditions. Common categories can include advertising, insurance, licence fees, office expenses, professional fees, maintenance, rent, telephone and utilities, travel, and motor-vehicle costs. A category name does not make every purchase deductible.
A current expense usually relates to the ongoing operation of the business or recurs after a short period. A capital expense generally provides a lasting benefit, acquires capital property, or improves property beyond its original condition. The CRA's current-versus-capital factors are fact-specific.
Capital property is not normally treated like an ordinary current expense. Depreciable property may instead be claimed over time through capital cost allowance (CCA), subject to the applicable class and rules. A major diagnostic machine, trailer, or long-lived tool can require different treatment from routine supplies or a normal repair.
Separate business and personal portions
If a cost has both business and personal use, the CRA says only the business portion belongs on Form T2125. A service van used 80% for business and 20% personally cannot simply be treated as 100% business because it has the company name on the door. The allocation needs a reasonable, supportable method and records such as a mileage log.
The same principle can affect telephone, internet, workspace-in-the-home, equipment, and other shared costs. Different expense types have different calculations and limits; when the allocation is not obvious, get professional advice.
Records, receipts, and the six-year rule
Records should let the CRA determine tax obligations and verify amounts reported. That normally means keeping sales invoices and payment records together with purchase receipts, contracts, bank and credit-card records, mileage logs, payroll records where applicable, tax returns, and other supporting documents.
The CRA's general rule is to keep required records and supporting documents for six years from the end of the last tax year they relate to. There are exceptions. Late-filed returns, objections or appeals, unfiled GST/HST returns, and records tied to long-term property may need to be kept longer. Do not treat six years as an automatic destruction date for every document.
Digital records can be useful, but a total in an invoicing app does not replace the source receipt that explains a purchase or supports an input tax credit. Read the companion guide to business expenses and records.
Reserve part of profit for taxes
A sole proprietor usually does not have an employer withholding income tax and self-employed CPP throughout the year. The CRA also notes that some sole proprietors may have to pay income tax and CPP by instalments. A practical habit is to move part of each profitable payment into a separate tax savings account.
There is no single safe percentage for every owner. Other income, province of residence, deductions, CPP/QPP, GST/HST registration, instalment history, and personal credits can change the amount. Estimate using current CRA information or ask a qualified professional rather than copying a percentage from social media.
When bookkeeping or accounting help becomes appropriate
Professional help becomes more valuable when transactions are no longer easy to review, GST/HST timing is uncertain, assets require CCA treatment, the business has employees or subcontractors, several provinces are involved, personal and business spending are mixed, bank accounts need regular reconciliation, financing requires reliable statements, or CRA notices arrive.
A bookkeeper can maintain transaction records and reconciliations. An accountant can help with tax reporting, financial statements, structure, and fact-specific treatment. The exact division depends on the professional's qualifications and engagement.
What invoicing software does and does not replace
Invoicing software helps create consistent customer records, quotes, invoices, tax lines, amounts billed, payment status, and exports. That is useful from the first paid job because clean sales records reduce later reconstruction.
Handoff is not accounting software or tax-preparation software. It does not decide whether an expense is deductible, classify capital property, reconcile bank accounts, calculate a tax return, file GST/HST returns, or replace a bookkeeper or accountant. As the business grows, Handoff's invoice exports can become an input to a fuller bookkeeping process rather than a substitute for it.