Personal Tax Services

Filing your personal income tax doesn’t have to be stressful — but for many London, Ontario residents, tax season still brings confusion about deadlines, deductions, and CRA requirements. Whether you’re a salaried employee, a student at Western University, or a retiree living in Old South, understanding the basics of personal tax filing puts you in control of your finances.

Every Canadian who earns income is expected to file a T1 General Income Tax and Benefit Return each year. For the 2025 tax year, the CRA deadline for most individuals is April 30, 2026. If you or your spouse are self-employed, the filing deadline extends to June 15, 2026 — but any balance owing is still due by April 30. Missing these dates means penalties starting at 5% of what you owe, plus 1% for each additional month you’re late.

What You Need Before You Start Filing

Gathering your documents early is the single most effective way to reduce stress during tax season. Before you sit down — or before you visit a personal tax accountant in London, Ontario — make sure you have these ready:

• T4 slips — issued by your employer showing employment income and deductions
• T5 slips — investment income from banks and financial institutions
• T2202 — tuition and education amounts (common for Western and Fanshawe students)
• RRSP contribution receipts — contributions made by the March 2, 2026 deadline reduce taxable income
• Receipts for medical expenses, charitable donations, and childcare costs
• Home office expenses — if you worked from home during the tax year
• Moving expenses — if you relocated at least 40 km closer to a new workplace or school

If you’re a first-time filer in Canada — for example, a new permanent resident settling in London — you’ll also need your Social Insurance Number (SIN) and any immigration documents that confirm your residency status for the tax year.

Common Deductions and Credits London Residents Often Miss

The difference between a basic tax return and an optimized one often comes down to knowing which deductions and credits apply to your situation. Here are some that London, Ontario residents frequently overlook:

Ontario Trillium Benefit: This combines three credits — the Ontario Sales Tax Credit, Ontario Energy and Property Tax Credit, and the Northern Ontario Energy Credit. If you paid rent or property tax in London during the tax year, you may qualify even on a modest income.

Public transit passes: Ontario reintroduced a provincial credit for transit users. If you used London Transit Commission (LTC) regularly, keep your receipts or digital records.

Medical expenses: Many people only claim prescriptions and dental work, but eligible expenses also include travel costs to medical appointments (relevant if you’re referred to specialists in Toronto or Hamilton), private health insurance premiums, and certain home modifications for accessibility.

Climate Action Incentive Payment: Filed automatically through your return, this federal payment helps offset the cost of carbon pricing for Ontario families.

Should You File Yourself or Hire a Tax Accountant?

Free software like NETFILE-certified programs works fine for straightforward returns — a single T4, no investments, no rental income. But the moment your tax situation involves multiple income sources, self-employment, rental properties, or investment portfolios, errors become costly.

A qualified personal tax professional in London doesn’t just file your return. They review your entire financial picture to find deductions you’d miss on your own, ensure compliance with CRA rules, and represent you if the CRA sends a reassessment notice.

For London residents juggling shift work at London Health Sciences Centre, part-time teaching at Fanshawe College, and a side business, the cost of professional tax preparation almost always pays for itself through higher refunds or lower balances owing.

What Happens If You File Late or Make a Mistake?

Late filing triggers an automatic penalty: 5% of your balance owing plus 1% for each full month you’re late, up to 12 months. If you’ve been penalized for late filing in any of the previous three years, the penalty jumps to 10% plus 2% per month for up to 20 months.

If you discover a mistake after filing, the CRA’s ReFILE service lets you make adjustments online for the current and previous nine tax years. For more complex corrections, you can submit a T1 Adjustment Request. A tax accountant can handle this process efficiently and ensure the correction doesn’t trigger further scrutiny.

Even if you owe nothing or expect a refund, filing on time matters. Your GST/HST credit, Canada Child Benefit, and Ontario Trillium Benefit payments all depend on having a current tax return on file.

Get Your Personal Tax Return Done Right

Filing your personal income tax accurately and on time protects you from penalties, maximizes your refund, and keeps your government benefits flowing. If your return involves anything beyond a single T4, working with a local professional is the smartest investment you can make during tax season.

London Ontario Tax offers expert personal income tax preparation for individuals across London and Southwestern Ontario. We’re CRA-authorized, and your first consultation is free.

📞 Call us at +1 226 559 1006 or book your free consultation today.