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FINANCIALLY AESTHETIC · GUIDE 27/37
INCOME TAX BASICS FOR YOUNG EARNERS
FA-5.5 · Income, Work & Making Money Young
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WHY THIS PAYS
Tax gets less mysterious once you separate income, deductions, credits, withholding and the final return.
The Principle: Progressive Taxation by Tax Brackets
Next, income exceeding this tax-exempt portion is taxed at a progressive rate - that is, according to tax brackets (ranging from 25% to a maximum of 50%) based on the total amount of your taxable income. The higher your income, the more the calculated tax will increase according to the various tax brackets.
The tax calculated in this way is then subject to reductions based on the taxpayer’s eligible expenses during the period, which entitle the taxpayer to a tax reduction.
This same principle of a bracket-based tax scale is used in France. The scale is applied to the calculated family quotient. This scale consists of several brackets:
| Income Brackets | Tax Rate for the Income Bracket |
| Up to €11,600 | 0% |
| From €11,601 to €29,579 | 11% |
| From €29,580 to €84,577 | 30% |
| From €84,578 to €181,917 | 41% |
| Over €181,917 | 45% |
Your tax is calculated in brackets, based on your income. Each bracket corresponds to a tax rate (ranging from 0% to 45%). If your annual income exceeds the threshold for bracket 1 (€11,600), it will fall into several successive brackets, as explained in the example.
A concrete example helps illustrate how this works. A single person (one-person household) with a net taxable income of €30,000, without any reductions or deductions, will have their tax calculated as follows:
- Up to €11,600: 0%
- From €11,601 to €29,579: (€29,579 - €11,600) × 11% = €17,979 × 11% = €1,977.69
- From €29,580 to €30,000: (€30,000 - €29,579) × 30% = €421 × 30% = €126.30.
His gross tax is: 0 € + 1,977.69 € + 126.30 € = 2,103.99 €.
This taxpayer’s marginal tax rate (TMI) is 30%, because their family quotient places them in this tax bracket. However, not all of their income is taxed at 30%. Their average tax rate is 7.01% (2,103.99 ÷ 30,000).
The marginal tax rate (TMI) is the tax rate that applies to the highest bracket of your income. The average tax rate is the average rate at which your income is taxed. It tells you the proportion of your income that goes toward taxes.
In Belgium, the system is similar but with different thresholds. First, every taxpayer is entitled to a tax-exempt income bracket, known as the “basic tax-exempt allowance.” In 2026, this amounts to 11,180 euros, and this amount is the same for all taxpayers. This basic allowance may be increased depending on your family situation, specifically the number of dependents.
The tax rates are set as follows:
- 25% for the income bracket ranging from 0.01 euros (indexed amount) to 16,720 euros (indexed amount)
- 40% for the income bracket from 16,720 euros (indexed amount) to 29,510 euros (indexed amount)
- 45% for the income bracket from 29,510 euros (indexed amount) to 51,070 euros (indexed amount)
- 50% for the bracket above 51,070 euros (indexed amount)
Taxable Income: What Is Used to Calculate Your Tax?
Taxable incomeYour income after certain amounts have been deducted from your net income. It is used to calculate the amount of tax you owe. In Canada, you are subject to federal and provincial or territorial taxes. Quebec residents must calculate their provincial tax payable with Revenu Québec.
Net incomeYour income after certain amounts have been deducted from your total income. It is used to determine whether you are eligible to claim certain tax credits or whether you are entitled to certain benefits and credits.
Total incomeThe sum of all income you earned or received during the year.
In France, the calculation follows a step-by-step process. First, you must determine your total gross income by listing your income by type, including taxable income, such as salary, pensions and retirement benefits, industrial, commercial, non-commercial, or agricultural profits, real estate income, investment income, and capital gains. Certain deductions must be applied, including business expenses.
A single person has no income other than their salary and reports €30,000 in net taxable income. If they choose the 10% flat-rate deduction for business expenses, their total gross income will be: €30,000 - (€30,000 × 10%) = €27,000.
Next, the total net income is calculated as follows: Total net income = total gross income - deductible expenses. Deductible expenses include, among others, child support or alimony paid to children or a former spouse, fees for the care of an elderly person, and retirement savings contributions.
Finally, net taxable income is calculated as follows: Net taxable income = total net income - special allowances.
Deductions
Deductions Certain amounts or expenses that reduce the income on which you pay taxes.
Among the common deductions relevant to young workers, the Registered Retirement Savings Plan (RRSP) is a retirement savings and investment plan for which individuals can open an account and make contributions. Deductible contributions can be used to reduce your income tax.
Union dues are amounts that members pay to their union to help fund the union’s activities.
A business expense is a cost that you have paid or will pay for the sole purpose of earning business income.
Tax Credits
Tax creditsAmounts that help reduce the tax you owe. Some tax credits can only reduce your tax to zero, while others can be repaid to you.
Non-refundable tax creditsCredits that reduce the tax you owe, but only down to zero. They cannot be refunded to you.
Refundable tax creditsAmounts that help reduce the tax payable. Any surplus amount may be refunded to you.
The basic personal amount is a non-refundable tax credit that all individuals can claim.
Some unused credits can be carried forward for later use. Carry-forward amounts are unused tax credits from a previous year that you can claim in a future year, such as tuition fees. If you do not use certain credits, such as tuition fees, they will remain available in your account so that you can claim them in a future year.
In France, two mechanisms are used to adjust the tax calculated after applying the tax scale. First, the tax benefit provided by the additional half-share(s) to which you are entitled is capped. It cannot exceed an amount determined based on your circumstances. The tax reduction linked to the family quotient is limited to €1,807 for each additional half-share (€904 for each additional quarter-share).
Second, the tax rebate is a mechanism that allows you to reduce your tax if you are in a low tax bracket. The tax rebate is applied automatically; you do not need to take any action. You are eligible for a tax rebate if your gross income tax does not exceed €3,277 (for a married couple filing a joint return).
For a single person, the tax reduction is equal to the difference between €897 and 45.25% of the tax amount. For example, for a single person with a gross tax of €1,400, the tax reduction is calculated as follows: €897 - (€1,400 × 45.25%) = €897 - €633.50 = €263.50. The tax amount after the reduction is: €1,400 - €263.50 = €1,136.50.
The tax reductions and tax credits to which you are entitled must be subtracted from your tax liability. For example, the tax reduction for donations to public interest organizations. Note: No tax is payable when the amount is less than €61. This is the amount after tax deductions and tax reductions, but before any tax credits are applied.
Withholdings and Payroll Tax: Paying Taxes as You Earn
Payroll Deductions Amounts your employer deducts from your paycheck. Generally, these include amounts for income tax and contributions to the Canada Pension Plan (CPP), the Quebec Pension Plan (QPP), or Employment Insurance (EI).
This is an advance on your tax. It does not reduce the amount of tax owed but actually spreads out the tax liability by being withheld monthly at the source from your gross pay.
Be careful with withholding tax on earned income if you have two part-time jobs! If you have two part-time jobs, the tax authorities will combine the earned income from both jobs to apply the progressive tax rates to that total amount. With a part-time job, you automatically fall into a lower tax bracket, and your employer will withhold only a small amount of withholding tax on earned income. However, if the tax authorities combine your two incomes, you’ll end up in a higher tax bracket and will have to pay significantly more in taxes. So keep this in mind and, if necessary, set aside some money each month to avoid any unpleasant surprises!
Depending on whether the final balance calculated after deductions is positive or negative, two scenarios are possible. A refund is an amount generated when your tax credits exceed your tax liability. This situation could occur if you paid more tax than you actually owed during the year - for example, due to tax withheld from your paycheck. It could also occur if you are eligible for refundable tax credits.
A balance due is an amount that results when your amounts payable exceed your credits. This situation can occur if you did not pay enough tax during the year, for example, if an insufficient amount of tax was withheld from your paycheck.
Common Documents
The T4 slip is a tax document provided by your employer that details your job earnings and payroll deductions for the year.
Most of the income you received during the year is reported on an information slip. These slips may also include information about credits you can claim.
TD1, Personal Tax Credits Return A form you must complete when you start a new job. You provide information about your tax status so your employer can make accurate payments.
After you file your return, the CRA sends you a notice of assessment, a document the Canada Revenue Agency sends you after reviewing and processing your tax return.
In France, these documents and forms are available online. These documents include a worksheet for calculating the amount of taxes.
Differences by Country or Region
The terminology and calculation methods vary by country.
In France, the calculation takes into account the tax household through the “parts” system. The number of “parts” to which you are entitled depends on your situation: single person, cohabiting partner, married couple, or civil union partner. It also takes into account your dependents, such as minor or adult children. Family quotient = net taxable income / number of tax “parts” in the household.
In Belgium, when joint taxation is applied - such as in a joint tax return (for married couples or legally cohabiting partners) - the tax rate is applied to each taxpayer’s taxable income. Each partner’s income is therefore taxed separately. Only at the very end of the calculation do the tax authorities aggregate the tax payable by both partners together.
Side Income and Platform Economy
A young worker who combines wage-earning employment with supplemental income - such as delivery, ride-sharing, or online sales - has specific tax obligations. If you earn income through a digital platform, you may have obligations regarding tax returns and the goods and services tax/harmonized sales tax (GST/HST).
If you earn income through digital platforms, you may be considered a self-employed worker and someone who carries on a business. If you are a self-employed worker, your tax obligations differ from those of an employee.
Your income is the net earnings from employment, self-employment (including activities related to the platform economy), property, investments, and benefits. To report and pay tax on all your self-employment income, complete lines 13499 and 13500 on your Individual Income Tax and Benefit Return and fill out Form T2125, Statement of Income from Business or Professional Activities.
By reporting all your taxable income, you will be able to:
- increase your eligibility for a mortgage or loan;
- increase your contribution limit to your Registered Retirement Savings Plan.
Generally, if you provide goods or services and earn more than $30,000 over four calendar quarters, you must register for the GST/HST, collect the tax, and remit it to the Canada Revenue Agency (CRA).
However, the threshold differs for certain activities. If you earn income by providing commercial ride-sharing services (e.g., Uber or Lyft), you must register for the GST/HST, collect the tax, and remit it to the CRA, regardless of how much you earn.
A small supplier is a self-employed worker or business that earns less than $30,000 in a calendar quarter or over the last four consecutive calendar quarters. A calendar quarter is a three-month period beginning on the first day of January, April, July, or October of each calendar year.
Social security contributions are in addition to income tax for self-employed workers. If you are a self-employed worker, you are responsible for making payments for both the employer’s and the employee’s portions of your CPP contributions.
Record all the income you’ve earned and the expenses you’ve incurred for business purposes. As a self-employed worker, you can deduct eligible expenses on your Income Tax and Benefit Return.
If you do not report all the income you earn through the gig economy, you may have to pay penalties and interest in addition to the tax you owe. By voluntarily correcting your tax status, you may be able to reduce or avoid penalties and interest.
Late Filing and Penalties
A late-filing penalty is an amount of money charged to you if you file your tax return after the due date and have a balance due. This amount is in addition to interest fees.
The CRA charges interest on your balance due. This is a type of fee applied for not paying your taxes on time. The interest rate charged may change every three months.
YOUR NEXT MOVE
Keep documents, identify your jurisdiction's filing rules and verify current rates and deadlines on official sites.
CURRENT-RULES CHECK
Legal protections, tax rates, reporting duties, deadlines and product rules change by country and over time. Use the jurisdiction labels in this guide and check the linked official source before acting.
- Canada Revenue Agency - Completing a basic tax return - Canada - filing basics.
- GOV.UK - Tax if you have more than one job - United Kingdom - multi-job tax.
- IRS - Tax tips for gig-economy workers - United States - gig-work tax.
- Verification gap: No suitable independent English-language official source was assigned for the France-specific tax-bracket table. The original French tax-administration source is preserved; verify the current tax year before publication.
