Retirement
Retirement drawdown
Which accounts to draw, and when to start CPP and OAS, to pay the least tax and leave the most behind. Showing Delayed CPP/OAS.
Assumptions & limitations
- Federal and Alberta tax uses the 2026 brackets and credits (basic personal, age and pension amounts), indexed each year at the bracket indexation rate. The federal lowest rate is 14%. Pension income splitting of RRIF income from 65 is chosen optimally each year.
- One portfolio return applies to every account. Non-registered growth is treated as deferred capital gains at 50% inclusion; withdrawals realize gains in proportion to the adjusted cost base. Annual interest and dividend distributions aren't taxed.
- Withdrawals happen on January 1 and growth over the year. CPP and OAS pay a full year from the start age and rise with inflation. OAS recovery tax (the clawback) is applied per person.
- The RRSP converts to a RRIF by the end of the year you turn 71 and CRA minimums apply from 72. Earlier withdrawals from 65 are treated as RRIF income for the pension credit and splitting.
- Spending is after-tax and grows with inflation. Withdrawals are grossed up for the tax they cause. Surplus cash from RRIF minimums or a meltdown goes to TFSA room first, then non-registered.
- Each person dies on December 31 of the year they reach their life expectancy. Accounts roll to the surviving spouse tax-free. The survivor CPP benefit is approximated as 60% of the deceased's CPP, capped so combined CPP stays under the maximum; the deceased's OAS stops.
- Canada has no inheritance tax. Tax at death is the extra tax on the last survivor's final return (the remaining RRIF as income and deemed capital gains on non-registered savings) plus provincial probate on the home and non-registered assets. TFSA and RRIF pass by beneficiary designation. The home is a tax-free principal residence.
- Monte Carlo draws log-normal annual returns from your return and volatility on a fixed seed, so results are stable. Inflation is not random. Every strategy is scored on the same market paths.
- Not modelled: income other than CPP, OAS and your accounts (DB pensions, work, rent), GIS, the dividend tax credit, low-income tax reductions, LIRA/LIF, annuities, and Quebec.
- Alberta surrogate fees are capped at $525, so probate barely moves the ranking.
- Alberta indexes brackets and credits at the lesser of 2% and the plan's indexation rate.
- This is an educational model, not financial or tax advice. Talk to a fee-only planner or accountant before acting on a drawdown plan.