There is no universal answer to the question of whether RRSPs or TFSAs should be withdrawn first. Different withdrawal sequences may produce different tax outcomes, different interactions with government benefits, and different levels of future flexibility. The more appropriate approach often depends on assumptions regarding income, taxation, spending, and retirement objectives.

RRSP withdrawals are generally taxable, while TFSA withdrawals are generally not. This distinction sits at the centre of many withdrawal-planning discussions because the source of retirement income may influence both after-tax spending power and future retirement outcomes. The difference may appear simple, but its implications can extend across an entire retirement.

Withdrawal decisions can affect more than the current year's taxes. A strategy that reduces taxes today may influence future taxable income, future government benefits, and future withdrawal options. For this reason, withdrawal planning is often evaluated over many years rather than one year at a time.

Government benefits can influence withdrawal planning. Because TFSA withdrawals generally do not create taxable income while RRSP withdrawals generally do, the interaction between withdrawals and income-tested programs may become an important consideration for some retirees. The significance of this effect depends on individual circumstances and retirement income levels.

Flexibility is often an overlooked factor. Some retirees prefer preserving TFSA assets because they provide tax-free access to capital. Others may prefer reducing future RRIF balances earlier in retirement. Neither approach is inherently correct, but each may produce different advantages and disadvantages.

Short-term tax savings and long-term outcomes are not always aligned. A withdrawal sequence that appears attractive in a single year may not necessarily produce the most favourable result over an entire retirement. This is one reason why retirement planning often focuses on long-term sustainability rather than annual optimization.

The question is not simply which account should be withdrawn first. A more useful question is what consequences are associated with different withdrawal sequences. Understanding those consequences is often more valuable than following a general rule.

Withdrawal planning ultimately involves assumptions and tradeoffs. Tax rates, spending requirements, longevity, government benefits, investment returns, and personal objectives may all influence the outcome. Different assumptions can reasonably lead different retirees to different conclusions.