Roth IRA Calculator

What This Means For You

How to Use This Roth IRA Calculator

This Roth IRA growth calculator and Roth IRA retirement calculator projects your tax-free balance at retirement. Also works as a Roth IRA contribution calculator and Roth IRA investment calculator. See the Roth IRA income limit and Roth IRA contribution limit 2026, explore Roth IRA tax free compounding, model Roth IRA compound interest, and find the best Roth IRA investments for your age. Use the Roth conversion calculator feature to compare conversion strategies.

Enter your current age, planned retirement age, annual contribution (up to $7,000 or $8,000 if 50+), current Roth IRA balance, and expected annual return. The calculator projects your Roth IRA balance at retirement, showing total contributions versus tax-free growth. Since all qualified Roth withdrawals are tax-free, the projected balance represents actual spendable money — unlike Traditional IRA projections where 20–30% will go to taxes.

Try different scenarios: see the impact of starting 5 years earlier versus later, maxing out contributions versus contributing half, or comparing conservative (5%) versus aggressive (9%) return assumptions. The most powerful insight from this calculator is the sheer scale of tax-free earnings over long periods — even modest contributions compound into six-figure or seven-figure tax-free balances given enough time.

What Makes the Roth IRA Special

The Roth IRA is arguably the most powerful retirement account in the American tax code. Unlike every other retirement vehicle, the Roth IRA offers completely tax-free withdrawals in retirement — no income tax, no capital gains tax, and no tax on decades of investment growth.

The fundamental trade-off: you contribute after-tax dollars today (no upfront deduction), but everything that comes out — contributions plus all earnings — is tax-free forever. If you contribute $7,000/year for 30 years at 7% average return, you accumulate approximately $661,000. In a Traditional IRA, 20–30% of that ($132,000–$198,000) goes to taxes when withdrawn. In a Roth IRA, all $661,000 is yours.

The Five Core Advantages

1. Tax-free growth and withdrawals. Every dollar of earnings — dividends, capital gains, interest — grows and is withdrawn without any tax. This is the defining feature that makes the Roth uniquely powerful.

2. No Required Minimum Distributions (RMDs). Traditional IRAs and 401(k)s force you to start withdrawing at age 73, whether you need the money or not. Roth IRAs have no RMDs — your money can compound tax-free for your entire lifetime. This makes the Roth an exceptional estate planning tool.

3. Contribution withdrawal flexibility. You can withdraw your original contributions (not earnings) at any time, for any reason, with no tax or penalty. This makes the Roth IRA a partial emergency fund backup — though you should maintain a separate emergency fund rather than raiding retirement savings.

4. Tax diversification in retirement. Having both tax-deferred (401(k)/Traditional IRA) and tax-free (Roth IRA) income sources in retirement gives you flexibility to manage your tax bracket year by year — drawing from Roth in high-income years and from Traditional in low-income years.

5. Tax-free inheritance. Roth IRAs pass to beneficiaries with continued tax-free status. Your heirs must withdraw within 10 years under current rules, but the withdrawals remain tax-free. A $500,000 Roth IRA inherited by your children is worth far more than a $500,000 Traditional IRA, which would generate $100,000–$150,000 in taxes upon withdrawal.

2026 Contribution Limits & Income Phase-Outs

Income Phase-Outs (Modified AGI)

If your income exceeds these limits, you can still contribute through the backdoor Roth IRA strategy — a legal workaround used by millions of high earners. You must have earned income (wages, salary, self-employment income) at least equal to your contribution amount. Investment income, rental income, and Social Security do not count as earned income for IRA contribution purposes.

The Power of Tax-Free Growth

The true value of a Roth IRA becomes apparent over long time horizons. Here is what happens when you max out contributions at different starting ages:

Starting at 25 versus 35 — just 10 years difference — results in $758,080 more at retirement ($1.4M vs $638K). The extra $70,000 in contributions ($280K vs $210K) generates an additional $688,000 in tax-free earnings. Every year of delay costs approximately $75,000 in lost tax-free growth.

The tax savings at withdrawal: If that $1.4 million were in a Traditional IRA instead, withdrawing it over 25 years of retirement at a 22% average tax rate would cost $307,401 in federal taxes. In a Roth IRA, that $307,401 stays in your pocket. This is the real payoff — not the upfront contribution, but the massive tax-free withdrawal decades later.

Roth IRA vs Traditional IRA: A Complete Comparison

*Traditional IRA deduction phases out if you or your spouse are covered by an employer retirement plan and income exceeds certain thresholds.

The decision framework: If your marginal tax rate today is lower than your expected effective tax rate in retirement, the Roth IRA wins — you pay tax at the lower rate now and avoid the higher rate later. For most people under 50 earning under $100,000, the Roth is almost always the better choice. Earnings tend to peak in the 40s and 50s, and future tax rates may increase from current levels. When in doubt, choose Roth.

Roth IRA vs 401(k): They Complement Each Other

*Roth 401(k) RMDs can be avoided by rolling into a Roth IRA before retirement.

These accounts are not competitors — they are teammates. The 401(k) provides higher contribution limits and employer matching. The Roth IRA provides tax-free income, investment flexibility, and no RMDs. Using both together gives you the maximum retirement savings capacity and the most tax flexibility in retirement. Use our 401(k) Calculator to model the 401(k) side.

The Optimal Retirement Savings Order

Financial planners generally recommend this priority sequence for allocating retirement savings:

Step 1: Contribute to your 401(k) up to the employer match (guaranteed 25–100% return on the matched portion). If your employer matches 50% on 6%, contribute at least 6%.

Step 2: Max out your Roth IRA ($7,000/$8,000). Tax-free growth beats tax-deferred growth over long horizons, and the Roth offers more flexibility than the 401(k).

Step 3: If you have an HSA, max it out ($4,150 individual / $8,300 family). The HSA is the only triple tax-advantaged account — contributions, growth, and qualified withdrawals are all tax-free. After age 65, non-medical withdrawals are taxed like a Traditional IRA (no penalty), making it a stealth retirement account.

Step 4: Return to your 401(k) and increase contributions toward the $23,500 limit. At this point, consider whether Traditional or Roth 401(k) contributions make more sense based on your current bracket.

Step 5: If you have maxed all tax-advantaged accounts and still have money to invest, use a taxable brokerage account with tax-efficient index funds. This has no contribution limit and no withdrawal restrictions, but capital gains are taxed.

The Backdoor Roth IRA Strategy

The backdoor Roth is a two-step process that allows high earners to contribute to a Roth IRA regardless of income. It is fully legal, IRS-approved, and used by millions of professionals annually.

Step 1: Contribute $7,000 to a Traditional IRA. Do NOT claim the tax deduction — this is a non-deductible contribution.

Step 2: Convert the Traditional IRA to a Roth IRA. Since the contribution was after-tax, you owe little or no tax on the conversion (only on any earnings between contribution and conversion).

Timing tip: Many tax professionals recommend contributing and converting on the same day (or within a few days) to minimize any earnings in the Traditional IRA that would be taxable upon conversion. Some brokerages allow same-day conversion with a single call or a few clicks online.

The Pro-Rata Rule: Critical Warning

If you have existing pre-tax money in ANY Traditional IRA (including SEP-IRA, SIMPLE IRA, or rollover IRA), the conversion is taxed proportionally based on the ratio of pre-tax to after-tax money across ALL your IRAs combined. You cannot selectively convert only the after-tax money.

Example: You have $93,000 in a rollover IRA (all pre-tax) and make a $7,000 non-deductible contribution. Total IRA balance = $100,000, of which $7,000 (7%) is after-tax. If you convert $7,000, only 7% ($490) is tax-free — the other 93% ($6,510) is taxable. This defeats the purpose of the backdoor.

The solution: Roll all pre-tax IRA balances into your employer's 401(k) before doing the backdoor Roth. Most 401(k) plans accept incoming rollovers. Once your pre-tax IRA balance is zero, the backdoor conversion is nearly tax-free. This is the single most important step — get it wrong and you owe thousands in unexpected taxes.

The Mega Backdoor Roth

The mega backdoor Roth is an advanced strategy that allows you to contribute up to $46,000 additional after-tax dollars into a Roth account — far exceeding the normal $7,000 Roth IRA limit. It requires a 401(k) plan that permits after-tax contributions and in-service Roth conversions or in-service withdrawals.

How it works: The total 401(k) limit in 2026 is $69,000 (employee + employer). If you contribute $23,500 (employee) and your employer contributes $10,000 (match), you have $35,500 of the $69,000 limit used. The remaining $33,500 can be contributed as after-tax 401(k) dollars, then immediately converted to your Roth 401(k) or rolled to a Roth IRA.

Who can use this: Only employees whose 401(k) plans explicitly allow after-tax contributions AND in-plan Roth conversions (or in-service withdrawals). Check with your HR department or plan administrator. This strategy is most common at large tech companies, financial firms, and Fortune 500 employers.

The payoff: A 30-year-old mega-backdoor-ing $30,000/year into Roth for 35 years at 7% accumulates approximately $4.06 million in tax-free retirement wealth. This is the single most powerful wealth-building strategy available to high-income W-2 employees.

Roth Conversions: When They Make Sense

A Roth conversion moves money from a Traditional IRA or 401(k) into a Roth IRA. You pay income tax on the converted amount in the year of conversion, but all future growth and withdrawals are tax-free.

Best scenarios for conversion:

Low-income year: Between jobs, sabbatical, early retirement before Social Security starts, or a year with unusually low income. Convert enough to fill up the 12% or 22% bracket — you pay a low rate now on money that would otherwise be taxed at a higher rate in retirement.

Market downturn: If your IRA drops from $500,000 to $350,000, converting during the downturn means paying tax on $350,000 instead of $500,000. When the market recovers, all the recovery growth is tax-free in the Roth.

Early retirement (before RMDs): The years between retirement (55–65) and RMDs (73) are a golden window for Roth conversions. Income is typically low, leaving room to convert at favorable rates before RMDs force taxable distributions.

When NOT to convert: In a peak earning year when you are already in the 32–37% bracket, if you need to use IRA money to pay the conversion tax (reducing your balance), or if you expect to be in a significantly lower bracket in retirement than you are today.

The 5-Year Rules (Yes, There Are Two)

5-Year Rule #1 — Contributions: You can always withdraw your original Roth IRA contributions at any time, tax-free and penalty-free, regardless of age or how long the account has been open. This is because you already paid tax on the money before contributing. Only earnings have restrictions.

5-Year Rule #2 — Earnings: To withdraw earnings completely tax-free and penalty-free, two conditions must be met: you must be at least 59½ AND the Roth IRA must have been open for at least 5 years (starting January 1 of the tax year of your first Roth contribution or conversion).

5-Year Rule for Conversions: Each Roth conversion has its own 5-year waiting period before the converted amount can be withdrawn penalty-free if you are under 59½. This prevents people from converting Traditional IRA money and immediately withdrawing it to avoid the 10% early withdrawal penalty.

Practical implication: Open a Roth IRA as early as possible — even with a small $100 contribution — to start the 5-year clock. If you are 55 and opening your first Roth, you will not have fully qualified access to earnings until 60. If you opened one at 25, the 5-year rule is long satisfied by the time you retire.

Withdrawal Rules by Age

Withdrawal order: The IRS requires Roth withdrawals to come out in this order: (1) contributions first, (2) conversions next (oldest first), (3) earnings last. This ordering rule protects you — you exhaust tax-free and penalty-free money before touching earnings that might trigger taxes or penalties.

Penalty exceptions (before 59½): First-time home purchase (up to $10,000 lifetime), qualified education expenses, disability, birth or adoption (up to $5,000), substantially equal periodic payments (SEPP/Rule 72(t)), and unreimbursed medical expenses exceeding 7.5% of AGI. These exceptions waive the 10% penalty but not necessarily the income tax on earnings.

What to Invest In Your Roth IRA

Since Roth earnings are tax-free, the optimal strategy is to place your highest-growth investments in the Roth — maximizing the tax-free benefit. Every dollar of growth inside a Roth is a dollar you never share with the IRS.

Core holding (70–90% of portfolio for younger investors): A low-cost total stock market index fund (VTI, VTSAX, or FSKAX) or S&P 500 index fund (VOO, VFIAX, or FXAIX). Expense ratios of 0.03–0.04%. This gives you broad exposure to US stocks with minimal fees. Over any 30-year period in history, the US stock market has produced positive returns — making it the ideal asset for tax-free compounding.

International diversification (10–30%): A total international stock fund (VXUS, VTIAX, or FTIHX) provides exposure to developed and emerging markets. International stocks have historically underperformed US stocks over the past decade but provide diversification that reduces portfolio risk and protects against prolonged US underperformance.

As you approach retirement (age 50+): Gradually add a total bond market fund (BND, VBTLX) to reduce volatility. A common guideline: hold your age in bonds (age 50 = 50% bonds), though many advisors suggest a more aggressive allocation (age minus 20 in bonds) given longer life expectancies and the need for growth to outpace inflation.

What NOT to hold in a Roth: Tax-exempt municipal bonds (their tax advantage is wasted inside a tax-free account), low-growth assets like money market funds (they do not benefit from tax-free compounding), or individual speculative stocks that might lose value permanently (Roth losses provide no tax benefit — you cannot deduct losses inside a Roth IRA). Cash should be limited to 1–2 months of planned withdrawals if you are in retirement.

Tax-efficient asset location strategy: Hold high-growth stocks in your Roth (maximizes tax-free growth), hold bonds and REITs in your Traditional 401(k)/IRA (their income would be taxed at ordinary rates anyway regardless of account type), and hold tax-efficient index funds in taxable accounts (lower capital gains distributions). This asset location strategy can add 0.3–0.5% per year in after-tax returns over a multi-decade investment horizon. Use our Compound Interest Calculator to see how even small return improvements compound dramatically over time.

Roth IRA Strategy by Age

20s — Maximize and go aggressive. Open a Roth immediately. Contribute as much as possible — even $100/month. Invest 90–100% in stock index funds. You have 40+ years for compounding. A $3,000/year contribution at 25 becomes $638,000 at 65. Time is your greatest asset.

30s — Max out consistently. If you are not already contributing the maximum $7,000, make it a priority. You are likely in a lower bracket now than you will be in your peak earning years. Maintain 80–90% stocks. If your income is approaching the phase-out, learn the backdoor Roth process now.

40s — Catch-up mode if needed. If you started late, accelerate contributions. At 50, the catch-up provision adds $1,000 to your annual limit. Consider Roth conversions if you have large Traditional IRA balances and your income dips for any reason. Begin shifting 10–20% toward bonds. Evaluate whether the mega backdoor Roth is available through your employer.

50s — Strategic positioning. Maximize catch-up contributions ($8,000/year). If you are planning early retirement, the years between 55 and 73 are the prime window for Roth conversions at lower tax rates. Begin planning your withdrawal strategy — Roth first (tax-free) or Traditional first (to reduce RMDs)? Most advisors recommend drawing Traditional first to minimize future RMDs, saving Roth for last.

60s and beyond — Enjoy tax-free income. After 59½ with the 5-year rule met, all withdrawals are tax-free. Use Roth withdrawals in high-income years to avoid pushing into higher brackets. No RMDs ever — let the Roth continue compounding if you do not need it. Consider the Roth as a legacy asset for heirs who will inherit it tax-free.

Common Roth IRA Mistakes

1. Not opening one early enough. Every year of delay costs $50,000–$100,000 in lost tax-free growth. Even a $500 contribution at age 22 starts the 5-year clock and establishes the account. You can always increase contributions later.

2. Contributing without investing. Opening a Roth IRA and making contributions that sit in a money market fund — earning 0.01% — is one of the most common and costly mistakes. Your contributions must be invested in stocks, bonds, or funds to grow. Many people contribute and assume the money is automatically invested. It is not — you must select investments after contributing.

3. Exceeding income limits without doing a backdoor. If your MAGI exceeds the phase-out threshold and you contribute directly, the IRS imposes a 6% penalty per year on the excess contribution until corrected. Either recharacterize to Traditional or withdraw the excess plus earnings before the tax deadline.

4. Ignoring the pro-rata rule for backdoor conversions. Converting with pre-tax IRA money sitting elsewhere triggers an unexpected tax bill. Roll pre-tax IRAs into your 401(k) before backdoor converting. This is the number one backdoor Roth mistake and the most expensive one to fix.

5. Withdrawing earnings before 59½. Pulling out earnings early triggers income tax plus a 10% penalty. If you need cash, withdraw only contributions (always tax-free and penalty-free). Better yet, maintain a separate emergency fund so you never need to touch your Roth.

6. Not naming beneficiaries. If you die without a designated beneficiary, your Roth IRA may go through probate and lose its tax-free status for heirs. Name primary and contingent beneficiaries, and review them annually — especially after marriage, divorce, or the birth of a child.

7. Holding the wrong investments. Municipal bonds, money market funds, and low-growth assets waste the Roth's tax-free benefit. Put your highest-growth investments (stock index funds) in the Roth and hold bonds in tax-deferred accounts where the tax treatment is the same regardless.

Roth IRA Glossary

Roth IRA — An individual retirement account funded with after-tax dollars. All qualified withdrawals — contributions plus earnings — are completely tax-free.

Modified Adjusted Gross Income (MAGI) — AGI plus certain deductions added back (student loan interest, foreign earned income, etc.). Used to determine Roth IRA contribution eligibility.

Backdoor Roth IRA — A legal strategy where high-income earners contribute to a non-deductible Traditional IRA and immediately convert to Roth, bypassing the income phase-out limits.

Mega Backdoor Roth — Advanced strategy using after-tax 401(k) contributions converted to Roth, allowing up to $46,000+ in additional Roth savings per year.

Roth Conversion — Moving money from a Traditional IRA or 401(k) into a Roth IRA. Income tax is due on the converted amount in the year of conversion.

Pro-Rata Rule — IRS rule requiring Roth conversions to be calculated proportionally across ALL Traditional IRA balances, not selectively from after-tax contributions only.

Required Minimum Distribution (RMD) — Mandatory annual withdrawals from Traditional IRAs and 401(k)s starting at age 73. Roth IRAs are exempt from RMDs during the owner's lifetime.

Tax-Free Compounding — Investment growth that is never taxed — not on dividends, not on capital gains, not on withdrawal. The defining advantage of the Roth IRA over every other investment account.

Frequently Asked Questions

Related Calculators