Insight
Nov 27, 2025
Mackisen

Retirement Income Planning in Canada: RRIFs, CPP, OAS, Tax Strategies, and OAS Clawback Avoidance — CPA Montreal Near You Explains

Introduction
Retirement income planning is one of the most critical components of personal financial management. Once Canadians transition from employment to retirement, their income sources change dramatically — and so do their tax obligations. Proper planning ensures you maximize government benefits, minimize tax, avoid the OAS clawback, reduce RRIF withdrawals, optimize income splitting, and structure investments for long-term tax efficiency. Without a strategy, retirees often pay more tax than necessary, lose income-tested benefits, or deplete their savings too quickly. This guide explains the key tax rules for retirement income in Canada and how to build a tax-efficient retirement plan.
Why Retirement Tax Planning Matters
Retirement income is subject to different tax rules depending on the source of funds. Effective planning helps retirees:
minimize tax on withdrawals
avoid OAS clawback
optimize income splitting
preserve tax-deferred investment growth
extend RRIF longevity
maximize government benefits such as GIS
determine the ideal timing for CPP and OAS
CRA audits retirees when reporting inconsistencies appear or when retirement income sources are misclassified. Proper planning avoids errors and ensures steady retirement cash flow.
Step 1: Understanding Core Retirement Income Sources
Most Canadian retirees rely on a blend of:
RRSP or RRIF withdrawals
CPP retirement pension
OAS pension
employer pensions (DB or DC)
TFSA withdrawals
non-registered investment income
rental property income
business or consulting income
Each source has different tax implications and affects eligibility for income-tested programs.
Step 2: RRIF Conversion and Withdrawal Rules
RRSPs must be converted to a RRIF or annuity by December 31 of the year you turn 71. RRIFs require mandatory minimum withdrawals starting the following year. Key principles:
withdrawals are fully taxable
large RRIF withdrawals may trigger OAS clawback
RRIF income is eligible for pension splitting after age 65
seniors should plan withdrawal amounts before age 71 — waiting too long can result in excessive tax in later years
RRIF longevity depends on early tax planning and investment strategy.
Step 3: CPP Timing Strategy
CPP can be:
taken as early as age 60 (with reduction)
taken at 65 (standard)
delayed up to age 70 (with 42 percent enhancement)
Delaying CPP is often beneficial for:
high-income earners
those expecting longevity
individuals trying to avoid OAS clawback
early retirees in low-income years
CPP taken early benefits those needing immediate cash flow but increases lifetime tax burden.
Step 4: OAS Timing and Clawback Avoidance
OAS can be taken at 65 or delayed to age 70 for a 36 percent increase. OAS clawback applies when net income exceeds the federal threshold. To avoid clawback:
withdraw RRSP funds strategically before age 65
use TFSAs for retirement income
split pension income with a spouse
minimize taxable capital gains in retirement
structure real estate sales strategically
OAS clawback is one of the most common tax issues for high-income seniors.
Step 5: Pension Splitting Strategies
Retirees can split up to 50 percent of eligible pension income with a spouse. Benefits include:
reducing combined tax
avoiding OAS clawback
maximizing tax credits
balancing household income
RRIF withdrawals (after age 65), employer pensions, and annuities are eligible for splitting.
Step 6: TFSA Maximization
TFSA withdrawals are:
completely tax-free
not included in income
do not affect OAS, GIS, CCB, or GST credit
Retirees should maximize TFSA contributions early to shelter investment growth.
Step 7: Strategic RRSP Withdrawals Before Age 71
RRSP withdrawals before converting to a RRIF can:
reduce future mandatory RRIF withdrawals
avoid large tax bills later
ensure optimal OAS/GIS eligibility
benefit retirees in temporarily low-income years
This strategy is especially effective for early retirees or those delaying CPP/OAS.
Step 8: Using Non-Registered Accounts Efficiently
Non-registered accounts generate:
taxable dividends
capital gains
interest income
Realizing capital gains gradually prevents large lump-sum gains later that trigger OAS clawback. Corporate dividends may be taxed advantageously depending on income levels.
Step 9: Rental Property and Business Income in Retirement
Rental income and business income are fully taxable. Retirees must:
track expenses properly
consider incorporation options
calculate capital cost allowance strategically
Time property sales to avoid cliff-effect clawbacks.
Step 10: GIS Eligibility and Low-Income Planning
GIS is extremely sensitive to income. Planning strategies include:
using TFSAs for income
minimizing RRIF withdrawals
avoiding taxable capital gains
delaying CPP to reduce income temporarily
GIS maximization requires precise planning and CRA-compliant reporting.
Step 11: Estate and Death Tax Planning
At death, CRA taxes:
RRSP/RRIF at full value (unless rollover to spouse)
capital gains on non-principal properties
corporate shares
investment portfolios
Life insurance and spousal rollovers mitigate these taxes. Early estate planning ensures liquidity and fair distribution.
CRA Audit Considerations
Common red flags include:
incorrect OAS clawback reporting
missing pension amounts
inconsistent RRIF withdrawals
incorrect CPP splitting
large lump-sum investment withdrawals
Real-time CRA matching increases audit frequency for seniors.
Mackisen Strategy
At Mackisen CPA Montreal, we create comprehensive retirement tax plans that minimize lifetime tax, reduce clawback risks, optimize RRSP/RRIF withdrawals, coordinate CPP/OAS timing, and build long-term cash-flow strategies tailored to individual needs. We also assist with estate tax planning, GIS optimization, and CRA audit defence for retirees.
Real Client Experience
A Montreal couple avoided over $18,000 in OAS clawback by restructuring RRIF withdrawals. A new retiree saved thousands by delaying CPP and using TFSA income. A high-income professional reduced RRIF exposure through early RRSP withdrawals. A landlord retiree minimized tax on property sales by applying capital-gain timing strategies.
Common Questions
Is RRIF income taxable? Yes fully. Should I delay CPP or OAS? Depends on your income and longevity. Does TFSA income affect OAS or GIS? No. Can I split my pension? Yes if eligible. Will CRA audit retirement income? Frequently.
Why Mackisen
With more than 35 years of combined CPA experience, Mackisen CPA Montreal helps Canadians build tax-efficient retirement plans, protect government benefits, and ensure financial stability throughout retirement.

