What Is Retirement Planning?
Retirement planning is the comprehensive financial planning process of determining the assets, income sources, and investment strategy required to fund an individual’s desired lifestyle throughout retirement — encompassing the accumulation phase during which retirement assets are built through savings, investment returns, and employer contributions, and the distribution phase during which accumulated assets are converted into sustainable retirement income to fund living expenses for what may be a thirty-year or longer retirement period.
Retirement planning is one of the most consequential and most practically encountered financial planning services — the primary financial objective of the majority of individual investors who seek professional investment advice, and the dominant purpose for which most Americans accumulate wealth throughout their working lives.
The decisions made during the retirement planning process — how much to save, how to invest retirement assets, which retirement accounts to use, when to claim Social Security, how to sequence withdrawals in retirement, and how to manage the longevity risk of outliving accumulated assets — have a larger aggregate impact on financial security than any other category of personal financial planning decisions.
Retirement planning is tested directly on the Series 65 examination in the context of individual retirement accounts, employer-sponsored retirement plans, required minimum distribution rules, Social Security, and the investment adviser’s role in developing appropriate retirement strategies for clients at different life stages and with different financial circumstances.
The Retirement Planning Challenge — Longevity and Uncertainty
The fundamental challenge of retirement planning is the combination of longevity risk — the risk of outliving accumulated assets — and uncertainty — the impossibility of knowing in advance how long retirement will last, what investment returns will be earned on retirement assets, what inflation will do to the purchasing power of fixed income streams, and what healthcare costs will arise as the retiree ages.
A couple both aged sixty-five in 2025 faces a meaningful probability that at least one will live to age ninety or beyond — creating a potential twenty-five-year or longer retirement horizon that must be funded from accumulated assets, Social Security income, pension income where available, and other sources. The combination of this extended horizon with the uncertainty of investment returns, inflation, and healthcare costs makes retirement planning inherently probabilistic — requiring strategies robust to a wide range of possible futures rather than optimised for any single projected scenario.
The sequence of returns risk — the risk that poor investment returns early in retirement will permanently impair the portfolio’s ability to sustain withdrawals throughout a long retirement — is one of the most significant and most counterintuitive risks in retirement planning. Two retirees who experience the same average annual return over thirty years of retirement but in different sequences — one experiencing poor returns in the early years and good returns later, the other experiencing good returns early and poor returns later — will have dramatically different retirement outcomes despite identical average returns, because the early retiree with poor initial returns is withdrawing from a smaller portfolio that has less capital available to benefit from the subsequent recovery.
Retirement Accumulation — Building the Retirement Asset Base
The retirement accumulation phase spans the investor’s working years — typically thirty to forty years during which regular savings and investment returns compound to build the retirement asset base.
The power of compounding over long accumulation periods means that the most consequential retirement planning decisions are made early in the career — the investor who begins saving at twenty-five has a dramatically better retirement outcome than the investor who begins at thirty-five, even if both save the same amount annually, because of the additional ten years of compounding on the earlier contributions.
The savings rate — the percentage of income directed toward retirement savings each year — is the single most controllable variable in retirement accumulation. Investment returns are uncertain and cannot be reliably controlled through security selection or market timing. The savings rate is within the investor’s direct control and has a more predictable effect on retirement outcomes than attempts to improve returns through security selection or market timing.
Tax-deferred retirement accounts are the primary vehicle through which most Americans accumulate retirement savings — allowing contributions to reduce current taxable income while investment growth compounds without current tax liability until withdrawal. Traditional individual retirement accounts allow annual contributions up to the statutory limit — seven thousand dollars in 2025 with an additional one thousand dollar catch-up contribution for investors aged fifty and over — with contributions deductible for investors below specified income thresholds. Employer-sponsored 401(k) plans allow employee contributions up to twenty-three thousand five hundred dollars in 2025 with an additional seven thousand five hundred dollar catch-up for participants aged fifty and over — with many employers providing matching contributions that represent immediate one hundred percent returns on the matched amounts.
Roth individual retirement accounts — funded with after-tax contributions — provide tax-exempt qualified distributions in retirement rather than tax-deferred growth. The Roth versus traditional account decision is a central retirement planning analytical question — comparing the value of a current tax deduction from a traditional contribution against the value of tax-exempt distributions from a Roth contribution, given current and anticipated future tax brackets and the time horizon until withdrawal.
The Saver’s Credit — A Tax Credit for Retirement Contributions
Savers with lower and moderate incomes may also be entitled to the retirement savings contributions credit, commonly called the saver’s credit — a credit of fifty, twenty or ten percent of eligible contributions, the rate depending on the taxpayer’s adjusted gross income and filing status, applied to no more than two thousand dollars of contributions per person, so that the maximum credit is one thousand dollars, or two thousand dollars on a joint return. Eligible contributions include contributions to a traditional or a Roth individual retirement account and elective deferrals to a 401(k) or similar workplace plan, including deferrals designated as Roth contributions. For 2025 the credit is unavailable once adjusted gross income exceeds seventy-nine thousand dollars on a joint return, fifty-nine thousand two hundred and fifty dollars for a head of household, or thirty-nine thousand five hundred dollars for other filers, and the saver must be at least eighteen, not a full-time student, and not claimed as a dependent on another person’s return.
The saver’s credit is a nonrefundable credit. It reduces the federal income tax otherwise payable dollar for dollar, but it cannot exceed that tax — so a saver whose liability has already been reduced to zero, by other nonrefundable credits for example, receives no benefit from it, and no part of it is paid out as a refund.
The credit cannot be generated by moving money out of retirement savings and back in. Rollover contributions do not qualify, and eligible contributions are reduced by the distributions the saver received from retirement plans and individual retirement accounts during a testing period made up of the two tax years before the year of the credit, the year of the credit itself, and the period after it up to the due date, including extensions, of that year’s return — with distributions received by a spouse counted as the saver’s own where the couple file joint returns for both the year of the distribution and the year of the credit.
Social Security — The Foundation of Retirement Income
Social Security retirement benefits — funded through payroll taxes on earned income and administered by the Social Security Administration — provide the foundational layer of retirement income for the vast majority of American retirees, with full retirement age benefits providing inflation-protected lifetime income that eliminates longevity risk for the Social Security portion of retirement income.
The Social Security claiming decision — when to begin receiving benefits — is one of the most consequential and most complex retirement planning decisions. Benefits can be claimed as early as age sixty-two at a permanently reduced amount — reduced by five-ninths of one percent for each of the first thirty-six months claimed before full retirement age and by five-twelfths of one percent for each additional month, full retirement age being sixty-seven for those born in 1960 or later — or deferred beyond full retirement age to earn delayed retirement credits of eight percent per year up to age seventy.
The optimal claiming strategy depends on the retiree’s health status and life expectancy, other income sources available during the deferral period, whether a spouse will claim benefits based on the other’s record, and tax considerations arising from the inclusion of Social Security benefits in taxable income above certain provisional income thresholds. For most retirees in good health with adequate assets to fund living expenses during the deferral period, deferring Social Security to age seventy — maximising the inflation-protected lifetime benefit — is the strategy most likely to produce the best outcome over a long retirement.
Social Security for Married Couples — Spousal and Survivor Benefits
Social Security also pays benefits to family members on a worker’s earnings record. A spouse may receive up to one-half of the benefit the worker would receive at full retirement age, reduced if the spouse starts it before reaching his or her own full retirement age — so that a spouse who claims at sixty-two with a full retirement age of sixty-seven receives about thirty-two and a half percent of the worker’s full benefit rather than fifty percent. A spouse who has also earned a retirement benefit on his or her own record is not paid the two amounts added together — Social Security pays whichever is higher.
Delayed retirement credits treat the two kinds of family benefit differently. The credits a worker earns by deferring beyond full retirement age are not used to increase the benefit paid to the worker’s spouse while the worker is alive, but they are carried into the benefit paid to the worker’s surviving spouse after the worker’s death. For a married couple the higher earner’s decision to defer is therefore in large part a decision about the income the survivor will receive — and an early claim by the higher earner works in the opposite direction, because the survivor’s benefit is then limited to the larger of the reduced amount the worker would have been receiving or eighty-two and a half percent of the worker’s full benefit.
A surviving spouse can receive up to one hundred percent of the deceased worker’s benefit if survivor benefits begin at the survivor’s full retirement age, with smaller percentages — from seventy-one and a half percent — if they begin earlier, as early as age sixty. A survivor who is also entitled to a retirement benefit on his or her own record is paid one benefit rather than the two combined, but may choose which to take first and switch to the other later — for example, taking the survivor benefit first and changing to his or her own retirement benefit at age seventy, when that benefit is at its highest.
Working While Claiming Early — The Retirement Earnings Test
A retiree who starts Social Security before full retirement age and keeps working is subject to the retirement earnings test. For each year in which the retiree is under full retirement age for the whole year, Social Security deducts one dollar of benefits for every two dollars earned above an annual limit that is adjusted each year in line with average wages; in the year the retiree reaches full retirement age, it deducts one dollar for every three dollars earned above a higher limit, counting only the earnings of the months before the month in which full retirement age is reached. From that month the test no longer applies, and earnings do not reduce benefits however large they are.
Benefits withheld under the earnings test are not simply forfeited. When the retiree reaches full retirement age, Social Security recalculates the benefit to give credit for the months in which benefits were reduced or withheld because of excess earnings, and those months are no longer counted in the reduction for early claiming — the reduction remains permanent, but it ends up applying only to the months for which benefits were actually paid. A worker’s excess earnings also reduce the benefits paid to a spouse on the worker’s record, although not those of a divorced spouse who has been divorced from the worker for at least two years.
Only income from work counts toward the limit — wages, including bonuses, commissions and vacation pay, and net profit from self-employment. Pensions, annuities, investment income, interest, veterans benefits and other government or military retirement benefits are not counted, so a retiree who claims early and lives on portfolio withdrawals and a pension, with no earnings from work, has nothing withheld under the test, however large that other income is.
Required Minimum Distributions
Required minimum distributions — established by the Internal Revenue Code under IRC Section 401(a)(9) — mandate minimum annual withdrawals from tax-deferred retirement accounts beginning at age seventy-three under the SECURE 2.0 Act of 2022, rising to age seventy-five for those born in 1960 or later. The required minimum distribution rules prevent indefinite deferral of tax on retirement account assets by requiring the account owner to begin withdrawing and paying taxes on the deferred amounts starting at the applicable required beginning date.
Required minimum distributions are calculated by dividing the account balance at December 31 of the prior year by the applicable life expectancy factor from the IRS Uniform Lifetime Table. Failure to take the required minimum distribution results in a significant excise tax — twenty-five percent of the amount not distributed under SECURE 2.0, reduced to ten percent if corrected within two years — making compliance with the required minimum distribution rules a critical component of retirement planning for clients with significant tax-deferred account balances.
Roth individual retirement accounts are not subject to required minimum distributions during the account owner’s lifetime — a significant planning advantage for investors who do not need to draw on Roth assets during retirement and wish to preserve them for heirs or for late-retirement healthcare expenses. This required minimum distribution exemption for Roth accounts makes Roth conversion analysis — converting traditional account balances to Roth by paying the tax now — an important retirement planning strategy for clients who wish to reduce their required minimum distribution burden in later retirement years.
Retirement Distribution — Converting Assets to Sustainable Income
The transition from accumulation to distribution — from saving for retirement to spending in retirement — requires a fundamental shift in investment strategy, portfolio construction, and financial planning focus.
The safe withdrawal rate concept — popularised by financial planner William Bengen’s 1994 research establishing the four percent rule — addresses the central question of how much can be withdrawn from a retirement portfolio annually without risk of depleting the assets over a thirty-year retirement. Bengen’s research found that a retiree who withdraws four percent of the initial portfolio value in the first year and adjusts that dollar amount for inflation annually has historically been able to sustain withdrawals through thirty years of retirement across all historical market scenarios — with a portfolio allocation of approximately sixty percent equities and forty percent fixed income.
The four percent rule has been challenged by subsequent research arguing that the low interest rate environment and high equity valuations prevailing since the 2010s may make the historical four percent rule too aggressive for retirees entering retirement today — with some researchers suggesting three percent or three and a half percent as a more conservative starting withdrawal rate for current retirees.
Bucket strategies — dividing retirement assets into separate time-based buckets with different asset allocations for each — address sequence of returns risk by maintaining a short-term bucket in cash and cash equivalents sufficient to fund several years of retirement expenses without requiring equity liquidation during market downturns. The short-term bucket insulates the retiree from being forced to sell equities at depressed prices during bear markets, while the long-term bucket remains invested in growth-oriented equity-heavy allocations that provide the inflation-fighting returns needed to sustain a long retirement.
Medicare at Sixty-Five — Enrolment Timing and Late Penalties
Medicare eligibility at sixty-five does not move with the Social Security claiming decision. The initial enrolment period lasts seven months — beginning three months before the month the individual turns sixty-five and ending three months after it — and those who have started Social Security benefits at least four months before turning sixty-five are enrolled automatically. A retiree who defers Social Security beyond sixty-five should still apply for Medicare within three months of the sixty-fifth birthday, because waiting longer can make Part B medical insurance and Part D prescription drug coverage cost more.
Missing the initial enrolment period without other qualifying coverage carries a lasting cost. The Part B late enrolment penalty adds ten percent of the standard monthly premium for each full twelve-month period in which the individual could have had Part B but did not sign up, and it is generally charged for as long as the individual has Part B — for most people, for life — so that a retiree who waited two full years pays twenty percent above the standard premium every month thereafter. Outside the initial period, Part B can generally be taken up only in the general enrolment period from January 1 to March 31 each year, with coverage starting the month after sign-up.
Group health coverage through the individual’s own job or a spouse’s job allows Part B to be deferred past the initial enrolment period without penalty, through a special enrolment period. That period ends eight months after the employment or the group health coverage ends, whichever happens first, and taking COBRA continuation coverage does not extend it — so a retiree who leaves work and relies on COBRA can still incur the late enrolment penalty by waiting beyond the eight months.
Retirement Planning and the Investment Adviser’s Role
Investment advisers serving clients approaching or in retirement have heightened fiduciary obligations — the stakes are particularly high because errors in retirement planning can permanently impair financial security during a period when the client has limited ability to recover through additional earnings.
The duty of care under the Investment Advisers Act of 1940 requires investment advisers to understand each retirement-age client’s specific circumstances — their Social Security claiming options, required minimum distribution obligations, healthcare cost projections, estate planning goals, and income needs — and to develop investment and withdrawal strategies genuinely tailored to those circumstances rather than applying generic models.
The suitability of the portfolio’s asset allocation is particularly consequential as clients approach and enter retirement — the sequence of returns risk means that excessive equity concentration at retirement onset can cause permanent damage to the retirement portfolio if a severe market downturn occurs in the early retirement years. The investment adviser must balance the need for long-term growth to sustain a long retirement against the near-term sequence of returns risk — a trade-off that requires careful analysis of each client’s specific financial resources, income needs, risk tolerance, and time horizon.
Examination Relevance and Key Takeaways
Retirement planning is tested on the Series 65 examination in the context of individual retirement accounts, employer-sponsored retirement plans, required minimum distributions, Social Security claiming, sustainable withdrawal strategies, and the investment adviser’s fiduciary obligations to retirement-age clients.
The key points to retain are these.
Retirement planning addresses the accumulation and distribution of assets to fund retirement lifestyle — the primary financial objective of most individual investors. Longevity risk — the risk of outliving assets — is the foundational challenge, with the combination of extended retirement horizons and uncertain investment returns, inflation, and healthcare costs making retirement planning inherently probabilistic.
Primary retirement accumulation vehicles are traditional individual retirement accounts — deductible contributions with tax-deferred growth and taxable distributions — and Roth individual retirement accounts — after-tax contributions with tax-exempt qualified distributions, no required minimum distributions during the owner’s lifetime. Employer-sponsored 401(k) plans provide higher contribution limits and employer matching contributions. Required minimum distributions under IRC Section 401(a)(9) and SECURE 2.0 mandate minimum annual withdrawals from tax-deferred accounts beginning at age seventy-three, or seventy-five for those born in 1960 or later — with a twenty-five percent excise tax for non-compliance. Social Security claiming is optimised through deferral to age seventy for healthy retirees with adequate bridge assets — earning eight percent annual delayed retirement credits beyond full retirement age.
The four percent rule — from Bengen’s 1994 research — suggests a starting withdrawal rate of four percent of initial portfolio value adjusted for inflation annually is sustainable over a thirty-year retirement with a sixty-forty equity-fixed income allocation across historical scenarios. Sequence of returns risk — poor early retirement returns permanently impairing the portfolio — is managed through bucket strategies maintaining short-term cash buffers and conservative near-term allocations. The fiduciary duty of registered investment advisers requires retirement planning advice genuinely tailored to each client’s specific Social Security options, required minimum distribution obligations, income needs, and risk tolerance.


