The short answer
The decade before retirement is less about finding one perfect investment and more about preventing avoidable gaps. A durable plan connects spending, debt, account contributions, health coverage, Social Security, taxes, and the needs of both people in a household before a paycheck stops.
- Use a retirement spending plan, not your current salary, to decide what savings need to do.
- Put the dates for work, Medicare, Social Security, pensions, and withdrawals on one household timeline.
- Review beneficiaries, insurance, debt, and account access before an emergency forces a decision.
Good to know: Contribution limits, tax rules, Medicare enrollment choices, and benefit estimates can change. Confirm decisions with the relevant agency, plan administrator, or qualified professional.
The final 10 years before retirement can feel like a countdown. There may be more money in retirement accounts than ever before, but there is less time to correct a decision that does not fit your life. The danger is not simply a market decline. It is a plan built around one account balance while healthcare, taxes, debt, timing, and a spouse’s needs stay off the page.
Many costly retirement mistakes are ordinary planning gaps—not irreversible failures. The useful goal is not to predict every market return. It is to make the decisions already in front of you visible early enough to test.
Start with one household timeline
Before looking at the 10 mistakes, put these dates in order: each person’s final day of full-time work, pension start, Social Security claim date, Medicare eligibility, health-coverage change, loan payoff, and first account withdrawal. Someone may leave work at 63, enroll in Medicare at 65, and claim Social Security at 67 or 70. Those are separate decisions.
| Decision | Question to answer | Why it matters |
|---|---|---|
| Work date | When does full-time pay actually end? | A cash-flow gap can hide inside a calendar year |
| Health coverage | What covers each person before and after 65? | Coverage rules and costs can differ by spouse |
| Social Security | Which claim ages are being compared? | Claiming changes monthly income and the bridge needed while waiting |
| Accounts | Which account pays first? | A withdrawal can change taxes and future flexibility |
| Debt | Which payments remain? | A guessed payoff date can make a budget too optimistic |
1. Using current salary instead of retirement spending
Salary is easy to find; spending is what retirement must fund. Work costs may disappear, but health coverage, home repairs, travel, taxes, and care needs can rise. Build a budget in today’s dollars, include irregular costs, and label expenses as essential, adjustable, or temporary. Then subtract dependable income only in years it is expected to begin.
The remaining gap is the job for savings. Our guide to how much money you need to retire shows why a spending gap is more useful than a headline savings number.
2. Treating the retirement date as fixed before testing it
The difference between leaving work at 62, 64, or 67 can affect contributions, years of withdrawals, employer health coverage, and Social Security. Model an earlier date, target date, and later date. This is not a command to work longer; it is a way to see what your preferred date requires.
3. Leaving employer money and plan details unreviewed
For 2026, many 401(k) plans permit regular employee deferrals up to $24,500. If a plan permits it, participants age 50 or older can generally add an $8,000 catch-up contribution; ages 60–63 may have a higher limit. These are ceilings, not instructions, and your plan may have separate rules.
Review the match formula, true-up, vesting, fees, account type, and investment choices. Missing part of a match because the plan was never read is a more controllable problem than trying to predict markets.
Use the Catch-Up Contribution Impact Calculator to compare a sustainable increase with your current path.
4. Chasing returns to “catch up”
A decade can feel short, making concentrated stocks, speculative assets, and high-fee promises tempting. But a large loss near retirement can be hard to recover from while withdrawals have started. This is not an argument for holding everything in cash. It is an argument for taking risk you can actually live with and knowing what each account needs to fund.
5. Ignoring the years before Medicare
Most people become eligible for Medicare at 65, but retiring earlier can create a health-insurance bridge. Marketplace coverage, a spouse’s job-based plan, COBRA, and retiree coverage have different timing and costs. Medicare.gov generally describes an initial enrollment period starting three months before the month you turn 65 and ending three months after it. Special enrollment rules can apply to qualifying current-employment coverage, while COBRA and retiree coverage do not necessarily preserve the same protections.
Draw two coverage timelines for a couple. The older spouse may move to Medicare while the younger spouse still needs coverage. Read our healthcare bridge guide before treating age 65 as a single household event.
6. Treating Social Security as a background number
Social Security can begin as early as 62 for eligible workers, but starting before full retirement age reduces the monthly benefit. Waiting after full retirement age can increase it until age 70. The better choice depends on health, work, savings, taxes, and survivor protection—not a universal “best age.”
Use my Social Security to compare current estimates at 62, full retirement age, and 70. Review both spouses’ records. For many couples, the higher earner’s decision can matter later because survivor benefits are tied to that worker’s record. Our Social Security break-even calculator is a useful first comparison.
7. Forgetting that withdrawals have taxes
A $50,000 distribution is not automatically $50,000 available for spending. Traditional 401(k) and IRA withdrawals are generally taxable as ordinary income. Taxable brokerage sales may contain gains, dividends, or interest. Qualified Roth distributions can have different treatment if requirements are met.
| Account type | Useful question | Common oversimplification |
|---|---|---|
| Traditional 401(k) or IRA | How much taxable income does a withdrawal create? | “The full balance is spendable cash.” |
| Roth account | When is tax-free flexibility most valuable? | “Roth is always the first account to spend.” |
| Taxable brokerage | What part of a sale may be gain? | “It creates no tax because it is not retirement money.” |
Required minimum distributions generally begin at age 73 for many people under current law, with exceptions. Our RMD calculator explains the basic mechanism; a tax professional should review complex plans.
8. Carrying expensive debt into a fragile cash-flow plan
List every debt’s balance, rate, required payment, and realistic payoff date. A manageable fixed-rate mortgage can fit differently from high-interest credit-card debt or a variable-rate loan. Model retirement spending with the payment still present. Do not assume a payoff that depends on market returns, a bonus, or an account withdrawal you have not tested.
9. Leaving beneficiaries, documents, and access for “later”
Beneficiaries, powers of attorney, health-care documents, insurance policies, account titles, and a secure list of accounts are part of the retirement plan. They solve different problems from a will. Ask an estate-planning attorney in your state what fits your household, and keep sensitive account information secure rather than placing it in an unprotected family spreadsheet.
10. Making the plan alone when it is a household plan
Retirement changes cash flow, caregiving, housing, travel, and family support. One spouse may be younger, hold the health insurance, or have the stronger Social Security record. Set a regular household review: essential spending, flexible spending, a return-to-work threshold, and tradeoffs each person accepts. A plan that works only if both people make every decision on the same day is too simple.
A practical 12-month reset
- Gather actual spending, debts, benefits, and account types.
- Put work, healthcare, Medicare, Social Security, pension, and withdrawal dates on one timeline.
- Capture valuable employer benefits if cash flow permits.
- Test base, cautious, and flexible spending cases.
- Review beneficiaries, insurance, documents, and account access.
- Repeat after a job, health, market, or family change.
Use the 4% Rule Retirement Calculator to test how an initial withdrawal changes a runway under several assumptions. It is a question for the rest of your plan to answer—not permission to retire by itself.
Frequently asked questions
Is it too late to fix retirement mistakes at 55 or 60?
No. A later start still leaves important levers: employer benefits, contributions, debt reduction, timing, spending, part-time work, and Social Security. Build the strongest plan from today rather than trying to recreate age 30.
Should I pay off my mortgage before retirement?
It depends on the rate, payment, liquidity, taxes, other debts, and how the payment fits your income plan. Model both options before using a large withdrawal or sale to pay it off.
Should I claim Social Security when I stop working?
Stopping work and claiming are separate choices. Compare the cash needed while waiting with the monthly benefit, taxes, health, and survivor tradeoffs.
The strongest plans protect more than an account balance
Primary sources
- SSA: Plan for retirement and compare benefit ages
- IRS: 401(k) and profit-sharing plan contribution limits
- IRS: Required minimum distributions
- Medicare.gov: When to sign up for Medicare
- Investor.gov: Managing lifetime income
This article is educational and uses general assumptions. Tax, healthcare, and retirement-plan rules can change. Confirm important decisions with official sources and qualified professionals.