An IRA (Individual Retirement Account) is a tax-advantaged account for saving for retirement. Contributions are either tax-deductible (Traditional) or after-tax (Roth). The investment grows tax-deferred (Traditional) or tax-free (Roth) until retirement. The key mechanic is: the government incentivizes retirement savings by letting you reduce or eliminate taxes on investments—in exchange for restrictions on when you can withdraw.
What an IRA is structurally
An IRA is an account you open at a brokerage, bank, or investment firm. You fund it with your own money (not an employer). The account holds investments (stocks, bonds, funds, etc.). Tax treatment depends on type: Traditional (pretax contributions, taxed on withdrawal) or Roth (after-tax contributions, tax-free withdrawal).
You control the IRA; no employer involvement (unlike 401k). You choose the investments inside it. An IRA is just a tax wrapper around whatever investments you choose.
Traditional IRA: Pretax contributions, tax-deferred growth
Contribution mechanics:
- Contribute up to $7,000/year (2026 limit; $8,000 if 50+)
- Contributions may be tax-deductible on your tax return (depends on income and 401k eligibility)
- Investments grow tax-deferred (no annual tax on gains, dividends, or interest)
- When you withdraw at 65+, you pay income tax on the full amount withdrawn
Example:
- Contribute $7,000 to Traditional IRA
- Deduct $7,000 on your tax return (saves $2,100 if in 30% tax bracket)
- Invest in S&P 500 fund; grows to $70,000 over 30 years
- Withdraw at 65: Pay tax on $70,000 as income (taxed at your rate then, maybe 25% = $17,500 tax)
- Net received: $52,500 (vs $17,500 if you’d held it taxable with annual taxes)
Tax-deductibility phase-out:
- High earners ($75k-$85k single, $120k-$130k married in 2026) lose partial deductibility
- Above limits, deductibility is zero (can still contribute, but no tax break)
Roth IRA: After-tax contributions, tax-free growth
Contribution mechanics:
- Contribute up to $7,000/year after-tax dollars (no tax deduction)
- Investments grow completely tax-free
- Withdraw at 65+: Tax-free (no taxes owed on growth or withdrawals)
- Contributions (but not growth) can be withdrawn anytime penalty-free
Example:
- Contribute $7,000 after-tax (no deduction)
- Invest in S&P 500; grows to $70,000
- Withdraw at 65: $70,000 tax-free (vs $52,500 net after-tax on Traditional)
- Tax saved: $17,500
Income limits for Roth (2026):
- Single: Can’t contribute if earning >$146k (phase-out starts at $131k)
- Married: Can’t contribute if earning >$230k (phase-out starts at $206k)
High earners can do “backdoor Roth”: contribute to Traditional IRA (non-deductible), immediately convert to Roth (pay taxes on conversion gains, then grow tax-free forever).
Withdrawal rules and penalties
Traditional IRA withdrawals:
- Before 59½: 10% penalty + income tax (with exceptions: disability, education, first-time home buying, etc.)
- After 59½: Withdraw anytime, pay only income tax (no penalty)
- Required Minimum Distribution (RMD): Mandatory annual withdrawal starting at 73 (based on life expectancy tables)
Roth IRA withdrawals:
- Contributions: Withdraw anytime tax-free, penalty-free (you already paid tax)
- Growth: Before 59½ subject to penalty and tax UNLESS account is 5+ years old AND you qualify (disability, first-time home buying)
- No required distributions (you can let it grow forever, even past 100)
Example: Roth flexibility.
- Open Roth at 30, contribute $7,000
- At 35, need $2,000 for emergency
- Withdraw $2,000 from contributions: Tax-free, penalty-free (only contributed $7,000, not touching growth)
Limits, eligibility, and availability
Eligibility:
- Must have earned income (W-2 wages, self-employment income; can’t contribute on investment returns)
- Age limit: No age limit for contributions (Traditional requires earned income; Roth allows contributions at any age as long as you have income)
Contribution limits (2026):
- Under 50: $7,000/year
- 50+: $8,000/year (catch-up)
- Cannot contribute more than your annual earned income (e.g., if you earn $3,000, max is $3,000)
Account numbers: Can open multiple IRAs at different institutions (but total contributions across all are still $7,000/year limit).
Traditional vs Roth decision framework
Choose Traditional if:
- You’re in high tax bracket now (30%+)
- You expect lower tax bracket in retirement (likely if retiring early or in lower-income state)
- You want immediate tax deduction (need tax break this year)
Choose Roth if:
- You’re in low tax bracket now (22% or less)
- You expect higher tax bracket in retirement (likely if retiring late or expecting higher future income)
- You want flexibility (can withdraw contributions anytime)
- You want to leave tax-free wealth to heirs
- You want to hedge against future tax increases
Most people should split: Contribute to both if possible (total still $7,000/year across both types). Roth for flexibility + long-term growth; Traditional for current tax break.
Tradeoffs and limitations
Traditional IRA:
- Advantage: Immediate tax break (reduce tax bill this year)
- Disadvantage: Must pay tax on withdrawal (creates future tax liability)
- Disadvantage: Forced withdrawals at 73 (RMDs)
Roth IRA:
- Advantage: Tax-free withdrawal (no future tax liability)
- Advantage: Flexibility (can withdraw contributions)
- Disadvantage: No current tax break (after-tax contribution)
- Disadvantage: Income limits (high earners phased out)
Backdoor Roth trap:
- If you have existing Traditional IRA balances, backdoor Roth conversions trigger pro-rata taxes (complex)
- Requires careful planning
Optimization strategy
Optimal retirement savings order:
- Contribute to Traditional IRA first (get current tax break)
- Max out Roth IRA (up to limit)
- If both maxed and want more tax-advantaged space, switch to Traditional IRA catch-up ($1,000 more at 50+)
Conversion opportunity:
- “Convert” Traditional IRA to Roth in low-income years (e.g., early retirement, between jobs)
- Pay tax on conversion that year, then withdraw Roth tax-free forever
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