Your Retirement Savings Number

Most retirement calculators in Canada hand you a replacement ratio — “you'll need 70% of your final pay” — and a scary number to match. This one works the other way. It starts from the disposable income that actually funds your life, then back-solves the savings that deliver the same spending power every year of retirement.

1. Name the disposable income you want in retirement — or derive it from your final pay by stripping out everything that won't follow you there: estimated income tax, CPP and EI premiums, the mortgage, the kids, and the saving itself.
2. Gross that target up through a retirement-specific tax estimate: federal and provincial brackets, the age amount, the pension income credit, and the OAS clawback.
3. Subtract guaranteed income — CPP, OAS, and any DB pension. Whatever's left has to come from your savings.
4. Capitalize that gap into a lump sum using a real (inflation- adjusted) return, with the plan running to age 95 per financial planning best practice. That lump sum is your number.

Why your number lands lower than you'd expect

Big costs disappear at retirement: the paid-off mortgage, the launched kids, CPP and EI premiums, and the saving you no longer need to do. Meanwhile new tax breaks appear — the age amount at 65, the pension income credit, income splitting for couples, and lower brackets than your peak-earning years. Someone who carried a mortgage, raised kids, and saved hard was often living on 40–50% of gross pay all along. That's the lifestyle the savings have to fund — not the salary.

Assumptions

• Every dollar is in today's dollars. Use a real (after-inflation) return like the Bank of Canada real-return bond yield, not a nominal market expectation.
• Savings are treated as tax-deferred (RRSP-style): deducted from working-year income, fully taxable on withdrawal.
• Couples assume perfect pension income splitting — a best-case tax outcome. CPP, OAS, and DB pensions are treated as level real annuities from the day you retire.
• The plan runs to age 95, per financial planning best practice, with the savings pot fully drawn down by then.

Limitations of this calculator

• Taxes are estimates from a single snapshot at your retirement age, repeated for every year of retirement. Real retirements evolve year by year — credits that start at 65, RRIF minimums at 71, income that shifts as benefits begin.
• No bridge-period modelling. If you retire at 58 but CPP and OAS start at 65, those gap years lean entirely on savings — pair this with the CPP & OAS Timing calculator.
• No GIS, AMT, or niche provincial credits like Quebec's tax shield.
• If much of your saving is TFSA rather than RRSP, your true number is lower than the one shown.
• Returns are a single steady real rate — no market crashes, no sequence-of-returns risk.
• This is a planning estimate, not advice. For a high-stakes decision, build your real plan in our app, where year-by-year taxes, RRIF minimums, and bridge periods are modelled explicitly.