To get the most from your 2025 return, Ontario tax credits and deductions have to be worked in two layers: the federal deductions and credits every Canadian can claim, and the province’s own stack on top. Miss either layer and you leave money behind. The Ontario Trillium Benefit alone requires a separate application form the Canada Revenue Agency will not fill in for you, and credits like the Seniors Care at Home Tax Credit pay out even when you owe no tax. What follows is what to claim, who qualifies, and the forms and receipts each one needs.
Ontario-Only Credits
Ontario Trillium Benefit
The Ontario Trillium Benefit rolls three credits into one monthly payment: the Ontario Sales Tax Credit, the Ontario Energy and Property Tax Credit, and the Northern Ontario Energy Credit. Payments based on your 2025 return run monthly from July 2026 through June 2027.1Canada Revenue Agency. Ontario Trillium Benefit Questions and Answers You have to file and complete the ON-BEN application included in the Ontario tax package; the CRA does not calculate it automatically.
The sales tax credit offsets the provincial portion of HST.2Government of Ontario. Ontario Trillium Benefit The energy and property tax credit is based on rent or property tax paid on your principal residence.3Canada Revenue Agency. Ontario Energy and Property Tax Credit Questions and Answers The northern credit adds a top-up if you lived in one of ten designated northern districts, including Algoma, Cochrane, Kenora, Nipissing, Sudbury, and Thunder Bay, and paid rent, property tax, or home energy costs there.4Canada Revenue Agency. Northern Ontario Energy Credit Questions and Answers All three target low-to-moderate income residents, so filing is worthwhile even on a very small income.
Low-income Individuals and Families Tax (LIFT) Credit
LIFT reduces Ontario tax for workers with modest earnings. The maximum is the lesser of $875 or 5.05% of your employment income. It starts shrinking once individual net income passes $32,500 or family net income passes $65,000, and disappears at $50,000 individual or $82,500 family.5Government of Ontario. Low-Income Workers Tax Credit It’s non-refundable, so it can take your Ontario tax to zero but won’t generate a refund on its own. Nothing extra to apply for — the calculation runs automatically when you file.
Ontario Seniors Care at Home Tax Credit
This one is refundable, which matters. You qualify if you or your spouse turned 70 or older during the year. The credit equals 25% of eligible medical expenses above 3% of net income, up to a $6,000 claim, for a maximum of $1,500. It phases out by 5% of family net income above $35,000 and is gone at $65,000.6Government of Ontario. Ontario Seniors Care at Home Tax Credit Because it’s refundable, qualifying seniors receive the money even with no tax owing.
Ontario CARE Credit for Childcare
The Childcare Access and Relief from Expenses credit reimburses a percentage of childcare costs. Families earning up to $20,000 get the top rate of 75%; the rate steps down as household income rises and reaches zero at $150,000.7Government of Ontario. Ontario Child Care Tax Credit Eligible costs include daycare, day camps, nursery schools, and boarding schools where lodging is involved. The provincial amount is calculated by applying your income-based rate to the childcare expenses you report on federal Form T778.8Canada Revenue Agency. T778 Child Care Expenses Deduction for 2025
Federal Deductions That Lower Taxable Income
Deductions come off before credits are applied, so they’re worth working through first. Knocking $5,000 off taxable income saves tax at your marginal rate on the whole amount.
RRSP Contributions
Contributions to a Registered Retirement Savings Plan reduce your taxable income directly. The 2025 annual limit is the lesser of 18% of your previous year’s earned income or $32,490, minus any pension adjustment.9Canada Revenue Agency. How Contributions Affect Your RRSP Deduction Limit Unused room carries forward; your Notice of Assessment shows your exact figure. Contributions made by March 2, 2026 count against your 2025 return.10Canada Revenue Agency. Line 20800 – RRSP Deduction If you expect a higher-income year ahead, you can contribute now and defer claiming the deduction to a year where it saves you more tax. The contribution and the deduction don’t have to land in the same year.
First Home Savings Account
The FHSA lets first-time homebuyers contribute up to $8,000 per year with a $40,000 lifetime cap. Contributions are deductible like an RRSP, and withdrawals used to buy a qualifying home come out tax-free.11Canada Revenue Agency. Participating in Your FHSAs Unused room from last year carries forward up to $8,000, so a maximum single-year contribution can hit $16,000. For an Ontario resident in the 5.05% provincial bracket plus the 20.5% federal rate, an $8,000 deduction saves roughly $2,044 in combined tax.
Pension Income Splitting
If you or your spouse receives eligible pension income, up to 50% of it can be shifted to the lower-income spouse by filing Form T1032. Both spouses sign the form and include it with their returns.12Canada Revenue Agency. Pension Income Splitting Moving income from a higher bracket to a lower one drops the couple’s combined tax, and can also help the receiving spouse qualify for other income-tested credits.
Union, Professional, and Like Dues
Annual union fees, professional licensing dues required by law, and malpractice insurance premiums tied to your profession are deductible at line 21200. These usually appear on your T4, but if you paid directly, keep the receipts.13Canada Revenue Agency. Line 21200 – Annual Union, Professional, or Like Dues
Home Office Expenses
If your employer required you to work from home and completes Form T2200 (Declaration of Conditions of Employment), you can deduct a share of certain household costs.14Canada Revenue Agency. T2200 Declaration of Conditions of Employment Salaried employees can claim a proportionate share of electricity, heat, water, internet, rent, and minor maintenance. Commission employees can additionally claim home insurance and property taxes. The deductible amount is based on workspace size relative to the home and how much of the time it’s used for work.15Canada Revenue Agency. Expenses You Can Claim – Home Office Expenses for Employees Mortgage payments, furniture, and capital improvements like new windows are never eligible. Keep the T2200 on file; don’t submit it with your return unless the CRA asks.
Federal Credits
Medical Expenses
The medical expense credit is non-refundable and kicks in once eligible expenses exceed the lesser of $2,834 or 3% of net income.16Canada Revenue Agency. Eligible Medical Expenses You Can Claim on Your Tax Return Prescriptions, dental work, eyeglasses, and travel for medical care not available locally all count. You can claim expenses over any 12-month period ending in the tax year, so a major procedure in early 2025 can sometimes be bundled with later expenses into one period that maximizes the credit. Compare which spouse benefits more from the household’s medical claim; the lower-income spouse usually wins because the 3% threshold is lower.
Home Buyers’ Amount
Buy a qualifying home in 2025 where neither you nor your spouse owned a home in the purchase year or the four preceding years, and you can claim up to $10,000 on line 31270. The non-refundable credit is calculated at 15%, reducing federal tax by up to $1,500.17Canada Revenue Agency. Line 31270 – Home Buyers’ Amount Spouses can split the $10,000, but the combined claim cannot exceed it. People with disabilities, or those buying a home for a relative with a disability, can qualify even if they’ve owned recently.
Canada Training Credit
Each year you meet the eligibility requirements (age 26 to 65, filing a return, income above a minimum threshold), the CRA adds $250 to your Canada Training Credit Limit, up to a $5,000 lifetime cap. When you pay tuition at an eligible institution, you can claim the lesser of your accumulated limit or 50% of fees as a refundable credit.18Canada Revenue Agency. Line 45350 – Canada Training Credit Being refundable, it pays out even if you owe no tax. Your Notice of Assessment shows your current balance; many people have accrued room without realizing.
Student Loan Interest
Interest paid on loans received under the Canada Student Loans Act, the Canada Student Financial Assistance Act, or equivalent provincial programs qualifies for a non-refundable credit. Only the borrower can claim it, even if a parent or spouse made the payments. Unused amounts carry forward up to five years.19Canada Revenue Agency. Line 31900 – Interest Paid on Your Student Loans Interest on private loans or lines of credit used for education doesn’t qualify; the loan must come from a government student aid program.
Disability Tax Credit
A severe and prolonged physical or mental impairment can qualify you for the Disability Tax Credit, a non-refundable federal credit of $10,341 for 2026, worth up to $1,448 in tax reduction.20Department of Finance Canada. Secretary of State Long Highlights Actions to Make It Easier to Access the Disability Tax Credit You apply by having a medical practitioner complete Form T2201 for CRA review.21Canada Revenue Agency. Disability Tax Credit (DTC) Approval also opens the door to the Registered Disability Savings Plan and lets you transfer any unused credit to a supporting family member. T2201 processing can take a while, so submit early.
Multigenerational Home Renovation Tax Credit
Renovate your home to create a self-contained secondary unit for a senior (65+) or a person eligible for the Disability Tax Credit to live with a qualifying relative, and you can claim up to $50,000 in renovation costs. The credit equals 14.5% of qualifying expenditures, maxing out at $7,250 per eligible renovation.22Canada Revenue Agency. Multigenerational Home Renovation Tax Credit The unit must have its own entrance, bathroom, and kitchen or kitchenette. The credit is refundable.
Charitable Donations
Donations to registered charities earn a federal credit of 15% on the first $200 and 29% on amounts above $200. Taxable income in the top federal bracket pushes the rate on amounts above $200 to 33%. Ontario adds its own provincial credit on top. A common move: if both spouses donate, combine everything on one return so more of the total crosses the $200 threshold and qualifies for the higher rate. Donations can also carry forward up to five years, useful if a larger gift is planned and you want to time it against a high-income year.
Tax-Free Benefits Tied to Filing
Canada Carbon Rebate
The Canada Carbon Rebate (formerly the Climate Action Incentive Payment) is a tax-free quarterly payment that offsets federal carbon pricing. For the 2024 base year, Ontario residents received $151 per individual, plus $75.50 for a spouse and $37.75 per child under 19. Rural and small-community residents receive a 20% supplement.23Canada Revenue Agency. How Much the Payment Amounts Were No separate application; the CRA uses your filed return to determine eligibility. No return, no payment.
TFSA Contributions
TFSA contributions don’t reduce taxable income or produce a credit, but they belong in the plan. The annual contribution limit is $7,000 for both 2025 and 2026.24Canada Revenue Agency. Calculate Your TFSA Contribution Room Interest, dividends, and capital gains inside a TFSA are permanently tax-free. Someone eligible since 2009 who has never contributed could have cumulative room above $100,000. Withdrawals don’t add to taxable income, so they won’t claw back income-tested benefits like the Ontario Trillium Benefit or Old Age Security.
Capital Gains Timing for 2026
For 2025, the capital gains inclusion rate stays at one-half, meaning 50% of a capital gain is reported as taxable income. Effective January 1, 2026, the federal government has announced the inclusion rate will rise to two-thirds for individuals on gains exceeding $250,000 in a year, with corporations and most trusts facing the two-thirds rate on all capital gains.25Department of Finance Canada. Government of Canada Announces Deferral in Implementation of Change to Capital Gains Inclusion Rate If you hold investments with large unrealized gains and have been thinking about selling, the date matters. Gains realized before December 31, 2025 are fully taxed at the 50% rate; those realized in 2026 and beyond may face the higher rate on amounts above the $250,000 annual threshold.
Documents to Gather Before You Start
Every claim above needs supporting paperwork. Pull these together before you open the software:
- T4 slip reporting employment income in Box 14, along with amounts withheld for income tax, CPP, and Employment Insurance.26Canada Revenue Agency. T4 Slip – Statement of Remuneration Paid
- T5 slip for investment income like interest and dividends from banks and other financial institutions.27Canada Revenue Agency. T5 Slip
- RRSP and FHSA contribution receipts confirming amounts contributed within the deadline.
- Charitable donation receipts with the charity’s registration number and the date of the gift.28Canada Revenue Agency. What Information Must Be on an Official Donation Receipt From a Registered Charity
- Medical expense receipts showing date of service, provider name, and out-of-pocket amount paid.
- Childcare receipts showing the provider’s name and Social Insurance Number.
- Rent or property tax receipts for the Ontario Energy and Property Tax Credit side of the Trillium Benefit.
- T2200 from your employer if you are claiming home office expenses.
Keep all supporting documents for at least six years from the end of the tax year they relate to. The CRA can request verification at any point in that window.29Canada Revenue Agency. Where to Keep Your Records, for How Long and How to Request the Permission to Destroy Them Early
File On Time or Lose Ground
Most individuals have to file their 2025 return and pay any balance by April 30, 2026.30Canada Revenue Agency. The Minister of Finance and National Revenue Mark the Launch of the 2026 Tax-Filing Season If you or your spouse ran a business, the filing deadline extends to June 15, 2026, but any balance owing is still due April 30.31Canada Revenue Agency. Factual Residents – Temporarily Outside of Canada Filing late when you owe triggers an immediate 5% penalty on the balance plus 1% for each full month late, up to 12 months.32Canada Revenue Agency. Interest and Penalties on Late Taxes Even if you can’t pay the full balance, filing on time wipes out the late-filing penalty; you only pay interest on what’s outstanding. For benefit-driven claims like the Trillium Benefit and Carbon Rebate, missing the filing deadline doesn’t just cost penalties — it stops the payments.