Retirement Planning Glossary: 50+ Terms Defined

Retirement planning has its own vocabulary — half borrowed from tax law, half from finance, and a healthy chunk of acronyms that look identical across countries but mean entirely different things. This glossary defines every term that matters, with plain-English explanations and links to deeper guides where they exist. Use it as a reference when reading other articles, or skim it once to fill the gaps in your own mental model.

Terms are grouped by category. Use your browser’s find-in-page (Ctrl+F / ⌘+F) to jump to any acronym.

Account Types — Canada

RRSP (Registered Retirement Savings Plan)

A tax-deferred retirement account where contributions reduce your taxable income today and withdrawals are fully taxed as income later. Annual contribution room is 18% of earned income up to a federal cap (about $32,490 in 2025), with unused room carrying forward indefinitely. Most Canadians’ largest retirement asset. See the RRSP meltdown strategy guide for how to draw it down efficiently and the TFSA vs RRSP comparison for which to prioritize.

TFSA (Tax-Free Savings Account)

A tax-free account where contributions are made with after-tax dollars, but all growth and withdrawals are completely tax-free. Annual contribution room (about $7,000 in 2025) accumulates from age 18, and withdrawn amounts are added back to your room in the following calendar year. Unlike the RRSP, withdrawals don’t count as income for OAS or GIS purposes — making the TFSA the most flexible retirement vehicle in Canada. Compare TFSA vs RRSP before deciding which to fund first.

FHSA (First Home Savings Account)

A hybrid account combining RRSP-style deductions with TFSA-style tax-free withdrawals — but only for first-time home buyers. Lifetime contribution limit is $40,000 ($8,000 per year), and unused funds can be rolled to an RRSP if you never buy. See the FHSA complete guide for eligibility and stacking rules with the Home Buyers’ Plan.

RRIF (Registered Retirement Income Fund)

The mandatory successor account to an RRSP. By December 31 of the year you turn 71, you must convert your RRSP into a RRIF (or annuitize it). Starting at age 72, the government requires minimum annual withdrawals — 5.40% at 72, rising to 20% at 95+. The RRIF minimum withdrawal guide has the full schedule.

LIRA (Locked-In Retirement Account)

A locked-in version of an RRSP that holds pension money you’ve transferred out of an employer plan. You can’t contribute to it or make ad-hoc withdrawals — funds stay locked until retirement age (usually 55), then must be converted to a LIF or annuity. See LIRA and LIF explained for unlocking rules by province.

LIF (Life Income Fund)

The income-stage counterpart to a LIRA. Like a RRIF, it has mandatory minimum withdrawals — but unlike a RRIF, it also has a maximum withdrawal cap each year, based on your age and the LIF balance. Designed to make pension money last a lifetime. Full mechanics in LIRA and LIF explained.

RDSP (Registered Disability Savings Plan)

A long-term savings vehicle for people eligible for the Disability Tax Credit. Contributions are not deductible, but the government adds matching grants (CDSG) and bonds (CDSB) — up to $90,000 in lifetime government contributions for low-income beneficiaries. Withdrawals are partially taxable.

RESP (Registered Education Savings Plan)

A tax-deferred account for funding a child’s post-secondary education. The federal Canada Education Savings Grant (CESG) adds 20% on the first $2,500 contributed annually, up to $7,200 lifetime. Withdrawals for education are taxed in the student’s hands — usually at near-zero rates. See RESP education savings for contribution strategy.

Spousal RRSP

An RRSP owned by your spouse but contributed to by you — you get the deduction, your spouse holds and eventually withdraws the funds. The classic income-splitting tool for couples with very different retirement incomes. Subject to the three-year attribution rule (see below). Strategy details in spousal RRSP strategy.

Non-registered account

A taxable investment account with no contribution limits and no tax shelter. Dividends, interest, and realized capital gains are taxed each year at varying rates. Often the third stop in the savings priority order after TFSA and RRSP are maxed.

Account Types — US

401(k)

An employer-sponsored tax-deferred retirement plan. Contributions reduce taxable income today and withdrawals in retirement are taxed as ordinary income. 2025 limit: $23,500 ($31,000 if age 50+). Most employers offer matching contributions — leaving the match on the table is the single most common retirement mistake.

Traditional IRA

A personal tax-deferred retirement account, contributable by anyone with earned income. 2025 limit: $7,000 ($8,000 if 50+). Deductibility phases out at higher incomes if you have a workplace plan. See Traditional IRA vs Roth IRA for the side-by-side.

Roth IRA

An after-tax personal retirement account where contributions don’t reduce current income, but all growth and qualified withdrawals are completely tax-free. 2025 limit: $7,000 ($8,000 if 50+), subject to income phase-outs ($150K–$165K single, $236K–$246K married). The closest US analog to Canada’s TFSA. Strategy comparison: Traditional IRA vs Roth IRA.

Roth 401(k)

The Roth version of a 401(k) — same contribution limit ($23,500 in 2025), no income phase-out, fully tax-free in retirement. Often the right choice for high earners who can’t directly fund a Roth IRA. Full comparison: Traditional 401(k) vs Roth 401(k).

HSA (Health Savings Account)

The triple-tax-advantaged account: tax-deductible contributions, tax-free growth, and tax-free withdrawals for qualified medical expenses. After age 65, non-medical withdrawals are taxed like a Traditional IRA — making the HSA arguably the best retirement account available. See HSA retirement strategy for using it as a stealth IRA.

403(b)

A 401(k) equivalent for employees of public schools, hospitals, and certain non-profits. Same contribution limits and tax treatment as a 401(k), with a few unique catch-up provisions for long-tenured employees.

457(b)

A deferred-compensation plan for state/local government and certain non-profit employees. Same $23,500 limit as a 401(k), and uniquely, can be stacked alongside a 401(k) or 403(b) — letting some government workers shelter $47,000 per year. No early-withdrawal penalty on separation from service.

SEP IRA

A Simplified Employee Pension IRA for self-employed individuals and small businesses. Contributions are employer-only and can be up to 25% of compensation or $70,000 in 2025, whichever is lower. Easier to administer than a Solo 401(k) but no Roth or employee contribution option.

SIMPLE IRA

A simplified plan for small businesses (under 100 employees). Lower limits than a 401(k) ($16,500 in 2025) but easier and cheaper to administer. Mandatory employer match of 3% or 2% non-elective.

529 Plan

A state-sponsored tax-advantaged account for education savings. Contributions are not federally deductible but most states offer a state-tax deduction. Growth is tax-free; qualified withdrawals are tax-free. SECURE 2.0 added a limited 529-to-Roth-IRA rollover provision. See 529 education savings plan.

Taxable brokerage

The US equivalent of Canada’s non-registered account. No contribution limits, no tax shelter, but generally favourable treatment for long-term capital gains and qualified dividends. Often the right home for tax-efficient index funds once tax-advantaged space is filled.

Government Benefits

CPP (Canada Pension Plan)

The federal earnings-based pension. Maximum benefit at age 65 is about $1,433/month (2025), though most retirees receive less. Claiming early (60) reduces the benefit by 36%; claiming late (70) increases it by 42%. The optimal age is highly individual — see when to take CPP for the math.

OAS (Old Age Security)

A near-universal Canadian retirement benefit based on years of Canadian residency, not earnings. Maximum is about $727/month at 65 (2025), rising 10% at 75. Subject to the clawback above ~$91K of net income. Deferable to age 70 for a 36% boost.

GIS (Guaranteed Income Supplement)

A non-taxable benefit paid to low-income OAS recipients. The clawback is steep — 50 cents per dollar of other income above a small exemption — making GIS one of the most tax-sensitive benefits in Canada. See GIS guaranteed income supplement for the income thresholds and planning strategies.

Provincial supplements (GAINS, SAFER, ASB, SAIP)

Province-specific top-ups for low-income seniors. GAINS (Ontario) tops up GIS recipients up to ~$87/month. SAFER (BC) is a rental assistance program for seniors. ASB (Alberta Seniors Benefit) is means-tested monthly income. SAIP (Saskatchewan Income Plan) is similar. Each has its own income thresholds and interactions with GIS.

Social Security

The US federal earnings-based retirement benefit. Maximum at full retirement age (currently 67) is about $4,018/month (2025). Claiming as early as 62 reduces the benefit by 30%; delaying to 70 adds 8% per year past FRA. Up to 85% of benefits are federally taxable depending on combined income. See when to take Social Security.

Medicare

US federal health insurance starting at age 65 (with some early-disability exceptions). Part A (hospital) is free for most; Part B (outpatient) has a base premium of about $185/month (2025) that rises with income (see IRMAA). Retiring before 65 means bridging with ACA marketplace coverage — see Medicare before 65 for early retirement or the Spanish version.

IRMAA (Income-Related Monthly Adjustment Amount)

The income-based surcharge on Medicare Part B and Part D premiums. Kicks in above about $106K (single) or $212K (married) of modified AGI from two years prior. The brackets are cliffs, not slopes — one dollar over a threshold can cost thousands per year per spouse. A major reason Roth conversion timing matters in the US.

Spousal/Survivor benefits

Both CPP and Social Security offer spousal benefits (a percentage of the higher earner’s benefit, paid to the lower earner) and survivor benefits (paid to a surviving spouse after death). Rules differ between the two systems. The US version is detailed in Social Security spousal and survivor benefits.

Tax Concepts

Marginal tax rate

The tax rate on your next dollar of income. If you’re in the 30.5% Ontario combined bracket, every additional $1,000 of taxable income costs $305 in tax. The relevant rate for most retirement planning decisions — RRSP contributions, Roth conversions, asset location.

Effective tax rate

The average tax rate across all your income. Always lower than the marginal rate (assuming you have any income in lower brackets). Useful for cash-flow planning but rarely the right rate for decision-making.

Tax bracket

A range of income taxed at a specific rate. Both Canada and the US use progressive bracket systems — only the income within each bracket is taxed at that bracket’s rate, not your full income. A common misconception is that “moving into the next bracket” raises tax on all your income; it doesn’t.

OAS clawback (officially: OAS recovery tax)

The 15-cent-per-dollar clawback of Old Age Security for net income above about $91,000 (2025), fully recovered around $148,000. Effectively a 15% surtax on income in that band. See OAS clawback — how to avoid it for income-shifting strategies.

Capital gains inclusion rate

In Canada, only a portion of realized capital gains is taxable. The inclusion rate is 50% on the first $250,000 of gains per year (2024+) and 66.67% on the excess for individuals. Inclusion rate matters for the timing of large capital gains realizations, including deemed dispositions at death.

Dividend tax credit

In Canada, eligible Canadian dividends receive a gross-up plus credit treatment that lowers their effective tax rate well below ordinary income. Often the most tax-efficient income for retirees with non-registered holdings.

Standard deduction

In the US, the standard reduction in taxable income for taxpayers who don’t itemize. $15,000 single / $30,000 married (2025), with an additional $2,000 if age 65+. The single biggest reason most US retirees can withdraw $30K–$40K with near-zero federal tax.

NIIT (Net Investment Income Tax)

A US federal 3.8% surtax on investment income (dividends, interest, capital gains, rental income) for taxpayers with modified AGI over $200K single / $250K married. Often overlooked in retirement projections — combine with state taxes and the Medicare surtax thresholds can stack to 30%+ marginal rates.

Tax-loss harvesting

Selling securities at a loss to offset realized gains or up to $3,000 of ordinary income annually. Works in non-registered (Canada) and taxable brokerage (US) accounts only. The 30-day superficial-loss / wash-sale rule prevents repurchasing identical securities to claim the loss.

Withdrawal Strategies

RRSP meltdown

A systematic plan to withdraw from your RRSP in the gap between retirement and the RRIF mandatory-minimums starting age, taking advantage of low-income years to draw at lower marginal rates. Often paired with delayed CPP/OAS to maximize the low-income window. Full mechanics in the RRSP meltdown strategy guide.

Roth conversion

The US equivalent of the RRSP meltdown — moving money from a Traditional IRA or 401(k) into a Roth IRA, paying tax on the conversion at today’s rates to lock in tax-free growth forever. Best executed in low-income years between retirement and Social Security or RMDs. See Roth conversion strategy.

Roth conversion ladder

A sequence of partial Roth conversions, each year filling specific tax brackets without overflowing into the next. The “ladder” name reflects the multi-year nature — there’s no single right amount; the optimal sum is spread over 5–15 years depending on bracket headroom and IRMAA thresholds.

RMD (Required Minimum Distribution)

The mandatory annual withdrawal from US tax-deferred accounts (Traditional IRA, 401(k), etc.) starting at age 73 for most current retirees (rising to 75 under SECURE 2.0). Roth IRAs are exempt from owner RMDs. See Required Minimum Distributions (RMD) for the full schedule and tax planning around it.

RRIF minimum

Canada’s equivalent of the RMD — the mandatory annual withdrawal from a RRIF starting at age 72. The percentage rises each year: 5.40% at 72, 6.82% at 80, 11.92% at 90, 20% at 95+. Detailed schedule and conversion mechanics in RRIF minimum withdrawal.

QCD (Qualified Charitable Distribution)

A US-only strategy: direct transfer of up to $108,000/year (2025) from an IRA to a qualified charity. The QCD counts toward your RMD but doesn’t appear on your tax return as income — bypassing the standard-deduction-vs-itemized-deduction debate entirely. One of the cleanest ways to give for taxpayers over 70½.

4% rule

The classic safe withdrawal rate guidance: start by withdrawing 4% of your retirement portfolio in year one, then adjust that dollar amount for inflation each year. Based on the 1994 Bengen study assuming a 50/50 stock/bond portfolio. Often misunderstood as guaranteed; the original study showed a 95% success rate over 30 years, not 100%. See spending strategies beyond the 4% rule for adaptive alternatives.

Guyton-Klinger

A set of dynamic withdrawal “guardrail” rules — increase spending after strong market years, freeze or cut after weak ones. Generally supports higher initial withdrawal rates (5–5.5%) than the static 4% rule, at the cost of accepting some real spending volatility.

VPW (Variable Percentage Withdrawal)

A withdrawal method where each year’s spending is calculated as a fixed percentage of the current portfolio balance, with the percentage rising with age. By design, you can never run out of money — but spending can fluctuate significantly with markets. A popular Bogleheads-community alternative to the 4% rule.

Sequence of returns risk

The risk that a poor market sequence in the early years of retirement will permanently impair the portfolio’s ability to sustain withdrawals — even if average long-term returns end up fine. Sequence risk is why two retirees with identical average returns can have wildly different outcomes if one happened to start in a bad year. Monte Carlo and historical backtesting are designed to quantify this.

Planning Concepts

Monte Carlo simulation

A projection technique that runs thousands of randomized return sequences and reports the percentage that successfully fund your retirement. A 90% success rate means 9 of 10 simulated futures didn’t run out of money. See Monte Carlo retirement simulation for what’s actually being modeled and where the method has blind spots.

Historical backtest

The complementary approach to Monte Carlo: instead of synthetic randomness, replay your plan against every actual rolling historical period (e.g., every 30-year window from 1928 onward). Doesn’t pretend future returns will look like the past, but does expose your plan to real-world sequences including 1929, 1966, and 2000. See historical backtesting for retirement.

Safe withdrawal rate (SWR)

The highest withdrawal rate that historically would have survived a given retirement horizon with high probability. The 4% rule is the most famous SWR estimate; modern research suggests 3.3%–4.5% depending on horizon, asset allocation, and starting valuations.

FIRE (Financial Independence, Retire Early)

A movement and framework targeting financial independence well before traditional retirement age. The classic FIRE target is 25× annual expenses (the inverse of the 4% rule). Variants include Lean FIRE (lower spend), Fat FIRE (higher spend), and Barista FIRE (partial work coverage of expenses).

Coast FIRE

A milder version of FIRE: reach a portfolio large enough that, even with no further contributions, it will grow to fund a traditional-age retirement. Once you Coast-FIRE, ongoing earnings only need to cover current spending — no further saving required.

Asset location

The strategy of placing different asset classes in tax-different account types to minimize lifetime tax. Generally: bonds and high-yield assets in tax-deferred (RRSP/401k), tax-efficient stocks in taxable, highest-growth in tax-free (TFSA/Roth). See asset location across TFSA, RRSP, and non-reg.

Asset allocation

The mix of stocks, bonds, cash, and other asset classes across your entire portfolio. The single largest determinant of long-run returns and volatility — far more important than security selection or market timing. Often expressed as “60/40” (stocks/bonds) or by age-based rules of thumb.

Pension splitting

Canadian rule allowing up to 50% of eligible pension income (including RRIF withdrawals after age 65) to be reported on a lower-income spouse’s return. One of the most powerful retirement tax tools for couples with unequal incomes. See pension income splitting in Canada.

Spousal attribution rule

The three-year rule on spousal RRSPs: if your spouse withdraws within three calendar years of your most recent contribution, the withdrawal is attributed back to you and taxed in your hands. A common trap when starting an RRSP meltdown using spousal funds.

Bonus Concepts

These show up regularly in retirement planning but don’t fit neatly into the categories above.

Backdoor Roth

A workaround for high-income US taxpayers who can’t contribute directly to a Roth IRA: contribute non-deductibly to a Traditional IRA, then convert to Roth. Triggers the pro-rata rule if you hold pre-tax IRA money elsewhere. Full mechanics in backdoor Roth and the pro-rata rule.

401(k) rollover

Moving an old 401(k) into an IRA when you change jobs or retire. Generally preferred for the wider investment menu and lower fees, but the rollover can interact badly with backdoor Roth strategies. See 401(k) rollover to IRA rules.

SBLOC (Securities-Backed Line of Credit)

A revolving credit line collateralized by a taxable brokerage account. Useful for short-term cash needs without realizing capital gains. Risks: margin calls in market downturns. See portfolio line of credit (SBLOC).

Withdrawal order

The sequence in which you draw from different account types in retirement. Conventional wisdom (taxable → tax-deferred → tax-free) is often suboptimal — bracket-filling and conversion strategies usually beat it. Full analysis in retirement withdrawal order strategy.

Savings splitting (couples)

The strategy of allocating contributions between two spouses’ accounts to minimize lifetime household tax. Especially impactful when one spouse will retire earlier or earn substantially less. See savings splitting for couples.

Best state to retire (US)

State income tax treatment of retirement income varies enormously — from zero-tax states (Florida, Texas, Tennessee) to states that fully tax Social Security and pensions. See best states to retire (taxes).

Home equity / HELOC in retirement

Using home equity as a contingency or income source — through a HELOC, reverse mortgage, or downsizing. See home equity and HELOC in retirement and the buy-vs-rent question in buy vs rent in retirement.

Rental property as retirement income

Using rental real estate to generate inflation-resistant cash flow in retirement. Tax treatment differs significantly from financial assets. See rental property retirement income.

Related Reading

• Retirement planning checklist — a year-by-year checklist for the five years before and after retirement
• Retirement planning by age — what to focus on at 30, 40, 50, 60, and beyond
• TFSA vs RRSP — which to fund first
• Traditional IRA vs Roth IRA — same question, US edition
• RRSP meltdown strategy — drawdown deep-dive
• Roth conversion strategy — US drawdown deep-dive

Try the Free Calculators

cinder.fi models every term in this glossary — RRSP/RRIF withdrawals, Roth conversions, CPP/OAS/Social Security timing, RMDs, IRMAA, the OAS clawback, Monte Carlo, historical backtests, asset location, and pension splitting — in a single integrated projection. No spreadsheets, no signup needed to start.

• Canadian retirement calculator — RRSP, TFSA, CPP, OAS, GIS, RRIF, all 13 provinces
• US retirement calculator — 401(k), IRA, Roth, Social Security, Medicare, RMDs, IRMAA, all 50 states

Build your plan free at cinder.fi.