📅 Year-End Tax Planning Strategies
The most impactful tax planning decisions are made before December 31. Here are the key moves to consider every year:
- Maximize RRSP contributions — You have until March 1 (of the following year) to contribute for the previous tax year. Don't leave deduction room on the table.
- Make charitable donations — Donations must be made by December 31 to claim the credit for the current tax year. Consider bunching donations in one year for a higher credit rate on amounts over $200.
- Tax-loss harvesting — Sell investments trading at a loss to offset capital gains realized during the year. Settlement must occur before December 31.
- Defer income — If possible, push income (bonuses, invoicing) into the next calendar year to delay the tax hit.
- Accelerate deductions — Prepay deductible expenses or make eligible purchases before year-end.
- Review medical expenses — You can claim medical expenses for any 12-month period ending in the tax year. Choose the period that maximizes your claim.
💡 RRSP vs TFSA — Which Is Better?
This is one of the most common tax planning questions in Canada. The answer depends on your situation:
- RRSP is best when your current marginal tax rate is higher than what you expect in retirement. You get the deduction now (at a high rate) and pay tax on withdrawals later (at a lower rate).
- TFSA is best when you expect higher income in retirement, or you value flexibility — TFSA withdrawals are tax-free and don't affect government benefits like OAS or GIS.
- Maximize both if possible — If you have the room and the funds, contributing to both gives you the most flexibility.
Key numbers for 2025:
- RRSP contribution limit: $32,490 (or 18% of prior year earned income, whichever is less)
- TFSA annual contribution room: $7,000
For a deeper comparison, see our guide on RRSP vs TFSA.
👫 Income Splitting Strategies
Income splitting lets higher-income earners shift some income to lower-income family members, reducing the overall family tax burden. Here are the CRA-approved methods:
- Spousal RRSP contributions — The higher earner contributes to a spousal RRSP and gets the deduction. After a 3-year holding period, the lower-income spouse can withdraw at their lower tax rate.
- Pension income splitting — Up to 50% of eligible pension income can be allocated to your spouse on your tax returns. This can significantly reduce tax when one spouse has a much higher pension.
- RESP contributions — While not traditional income splitting, the Canada Education Savings Grant (CESG) provides a 20% match on contributions (up to $500/year per child). Growth is taxed in the student's hands at their lower rate.
- Prescribed rate loans — Lend money to a lower-income spouse at the CRA prescribed interest rate (currently 5%). They invest the funds and pay tax on the returns at their lower rate, while you report only the interest income received.
- Attribution rules — Be aware of CRA's attribution rules. Simply gifting money or investments to a spouse or minor child will cause the income to be attributed back to you.
📉 Tax-Loss Harvesting
Tax-loss harvesting is a strategy to reduce your capital gains tax by selling investments that have declined in value:
- How it works: Sell investments at a loss to offset capital gains realized during the year. This reduces your net capital gains and the tax you owe.
- Superficial loss rule: You cannot repurchase the same (or identical) security within 30 days before or after the sale. If you do, the loss is denied. Buy a similar (but not identical) investment instead.
- Carry provisions: Capital losses can be carried back 3 years to offset past gains or carried forward indefinitely to offset future gains.
- 50% inclusion rate: Since only 50% of capital gains are taxable, capital losses also offset at the same 50% rate. A $10,000 loss offsets $10,000 in gains, saving you tax on $5,000 of taxable income.
🏢 Self-Employed Tax Planning
If you're self-employed, proactive tax planning is essential to avoid surprises at filing time:
- Time business purchases — Buy equipment and assets before year-end to claim Capital Cost Allowance (CCA) in the current year.
- Separate business account — Keep business and personal finances completely separate. This simplifies bookkeeping and protects you in a CRA review.
- Consider incorporation — When consistent net income exceeds approximately $150,000+, incorporation may provide tax deferral benefits. Always consult an accountant — incorporation adds cost and complexity.
- Voluntary CPP contributions — Self-employed individuals pay both the employee and employer portions of CPP. While costly, this builds retirement benefits.
- Set aside 25-30% for taxes — Put aside a portion of every payment received into a separate account for income tax and CPP.
For more detail, see our complete Self-Employed Tax Guide.
🏖️ Retirement Tax Planning
Planning for retirement isn't just about saving — it's about withdrawing in the most tax-efficient way:
- OAS clawback threshold: For 2025, Old Age Security starts being clawed back when net income exceeds $90,997. RRSP/RRIF withdrawals count toward this threshold, but TFSA withdrawals do not.
- Pension income splitting: Allocate up to 50% of eligible pension income to your spouse. This can keep both spouses below the OAS clawback threshold.
- RRSP to RRIF conversion: You must convert your RRSP to a RRIF by December 31 of the year you turn 71. Mandatory minimum withdrawals begin the following year.
- TFSA withdrawals: Tax-free and don't affect any government benefits — OAS, GIS, or age-related credits. Maximize TFSA in retirement.
- CPP sharing: If both spouses are 60+, you can share CPP retirement benefits. This can reduce overall tax if one spouse receives significantly more CPP.
❓ Frequently Asked Questions
When should I start tax planning?
Year-round, but especially September through December for year-end strategies. RRSP contribution decisions should be finalized before March 1. The earlier you start planning each year, the more options you have to legally reduce your tax bill.
Should I incorporate my business?
Generally beneficial once your consistent net business income exceeds approximately $150,000+. The small business deduction taxes the first $500,000 of active business income at a lower rate. However, incorporation comes with annual filing costs ($1,000-$3,000+), legal setup fees, and added complexity. Consult an accountant to run the numbers for your specific situation.
Is it better to pay down mortgage or contribute to RRSP?
It depends on your mortgage interest rate versus your expected RRSP investment growth rate and your current marginal tax bracket. Generally, RRSP contributions win when your marginal tax rate is high because the tax refund effectively reduces the net cost of the contribution. A common strategy: contribute to RRSP, then use the tax refund to make an extra mortgage payment.
How do I reduce OAS clawback?
Several strategies can help: shift investment income to a TFSA (withdrawals don't count as income), use pension income splitting with your spouse, and consider an RRSP meltdown strategy — drawing down RRSP/RRIF funds before age 65 to reduce future mandatory withdrawals that would trigger the clawback.
Can I split income with my spouse?
Only through specific CRA-approved mechanisms: spousal RRSP contributions, pension income splitting (up to 50% of eligible pension), prescribed rate loans to a lower-income spouse, and RESP contributions. You cannot simply assign employment or business income to your spouse — CRA's attribution rules prevent this.
Explore more: RRSP vs TFSA deep dive, personal tax filing guide, self-employed tax guide, rental income taxes, tax calculator, and our tax checklist.