Free course · Module 1
Roth IRA, 401(k) or Brokerage Account?
Compare US retirement and brokerage accounts, understand employer matching and see how tax rules, contribution limits and access can shape the choice.
Written by the StockEducation Editorial Team · Reviewed by Associate Professor Charles Lo, CPA, PhD · Updated 16 Oct 2026 · How we check lessons
Pick a topic to learn
Read in order, or return to the idea you need.
Idea 1 of 4
Choose the account, then the investment.
An account is the container; a fund or stock is what it holds. A workplace 401(k), an individual IRA and a taxable brokerage account can all provide access to investments, but the available choices depend on the plan or provider. Opening an account alone does not select an investment.
For 2026, the standard employee 401(k) deferral limit is $24,500. The combined traditional-and-Roth IRA contribution limit is $7,500, subject to compensation and eligibility rules. These are different limits, not competing slices of one allowance. Source 1, Source 2.
401(k)
$24,5002026 employee deferrals, before catch-up
Plan menu · possible employer matchIRA
$7,5002026 combined traditional + Roth, before catch-up
Provider choices · eligibility rulesBrokerage
Flexible accessNo IRA/401(k) annual contribution cap
Tax can arise on income and realized gainsEligibility, tax treatment, plan choices and access matter alongside investment risk.
What changes the 2026 limits or eligibility?
Check the account’s rules and the investment’s risks separately.
Idea 2 of 4
Roth and traditional change when tax applies.
Roth generally pays income tax before contributing; traditional can defer it. Designated Roth 401(k) and Roth IRA contributions use after-tax money. Pre-tax 401(k) contributions generally reduce current taxable income, with taxable withdrawals later. A traditional IRA deduction is conditional, and after-tax basis can change withdrawal taxation. Source 4.
Qualified Roth withdrawals are tax-free under the applicable rules. That does not make every early Roth withdrawal tax-free. Tax rates now and later, eligibility, fees and access needs all belong in the comparison.
After-tax contribution
Roth account
Tax-free withdrawal
Before-tax contribution
Traditional account
Income tax applies
This flow does not compare take-home pay, future tax brackets or after-tax outcomes.
Can I withdraw from a Roth IRA before retirement?
What about other early retirement withdrawals?
Separate regular contributions, earnings and qualified distributions.
Idea 3 of 4
Read the match formula and vesting rules.
A match formula can reward some contributions more than others. In this fictional plan, the employer adds 50 cents per employee dollar on contributions up to 6% of a $60,000 salary. Contributing 3% earns $900 of match; contributing 6% earns $1,800. Additional contributions above 6% earn no extra match under this formula.
Your own elective deferrals are fully vested. Employer contributions may follow a vesting schedule, so an amount credited to the account is not always an amount you can keep when leaving. Check the plan document. Source 7.
You contribute 3%
You: $1,800 · employer: $900 · total: $2,700
You contribute 6%
You: $3,600 · employer: $1,800 · total: $5,400
Employee contribution rises by $1,800; employer contribution rises by $900.
What could $1,800 a year become over 30 years?
Check the match cap, eligibility, timing and vesting before assuming the money is yours.
Idea 4 of 4
Compare the trade-offs before deciding.
A common funding order is a starting question, not a universal instruction. After considering cash reserves and expensive debt, someone might review the employer match, eligible IRA or HSA options, further workplace saving and taxable investing. Cash needs, available plans, fees and taxes can change that order.
Try the fictional match formula below. It calculates one year of contributions and matching, not investment growth or which account you should open.
How does the contribution rate change the match?
Fictional plan · one yearSalary $60,000 · employer matches 50% · match applies up to 6% of salary.
Total annual contributions: $5,400. Match not collected: $0.
Match = $60,000 × min(your rate, 6%) × 50%. Annualized example assumes full-year eligibility and no pay-period mismatch. It ignores tax, vesting, investment returns, fees and salary changes. It does not check your personal eligibility or make an account change.
Where do an HSA and a brokerage account fit?
Gather the facts before changing contributions
Write down the plan facts and your questions before making a decision.
Quick check
Three quick checks. Feedback straight away.
For 2026, what is the standard employee 401(k) deferral limit before catch-up?
Choose an answer to see the explanation.
In this fictional $60,000-salary plan, what match does a 3% contribution earn at a 50% match up to 6% of pay?
Choose an answer to see the explanation.
Which Roth IRA withdrawal satisfies the usual age-and-five-year qualification tests?
Choose an answer to see the explanation.
Review your takeaway card and the learning path
- Account and investment are separate. Check both sets of rules.
- Tax timing matters. Roth qualification and traditional deductions have conditions.
- Read the match terms. Amount credited and amount vested can differ.
- Keep access needs in view. A common saving order may not fit your circumstances.
Reading markers and these practice checks stay on this device. They do not mark the LMS lesson complete.
Sources and assumptions
- IRS: 2026 retirement limits. Standard limits, catch-up and IRA income phase-outs.
- IRS: IRA contribution limits. Combined traditional/Roth limits and compensation rules.
- IRS Topic409: Capital gains and losses. Realized gains/losses and holding-period context.
- IRS: Roth comparison chart. Designated Roth, Roth IRA and pre-tax workplace treatment.
- IRS Publication590-B. Roth IRA qualification, contributions, conversions and distribution ordering.
- IRS: Early-distribution exceptions. Additional tax and account-specific conditions.
- IRS: Vesting. Employee deferrals, employer schedules and plan documents.
- IRS Publication969. HSA eligibility and distribution tax treatment.
- IRS RevenueProcedure2025-19. 2026 HSA contribution and HDHP limits.
Sources checked 16 October 2026. This is a US account overview using 2026 limits; tax and plan rules can change. Match and growth figures are hypothetical, with timing and exclusions stated. This page does not determine personal eligibility, advise an account choice, submit a transaction or mark an LMS lesson complete.
StockEducation provides general education, not personal financial, tax or legal advice. Nothing here recommends a specific security. Investing involves risk, including loss of money you invest.
