Roth IRA Calculator

What is a Roth IRA?

A Roth IRA (Individual Retirement Account) is a tax-advantaged retirement account introduced under the Taxpayer Relief Act of 1997, named after Senator William Roth of Delaware who championed the legislation. Unlike a traditional IRA, you contribute money to a Roth IRA with after-tax dollars (no upfront tax deduction), but qualified withdrawals in retirement — including all the investment growth that accumulates over decades — are completely tax-free.

For most middle-income Americans, the Roth IRA is widely considered one of the most powerful retirement savings vehicles available. The combination of tax-free growth, tax-free qualified withdrawals, no required minimum distributions during the owner's lifetime, and flexible access to contributions makes it uniquely valuable.

As of 2026, the federal government allows individuals to contribute up to $7,500 per year ($8,600 if you're 50 or older) to a Roth IRA, subject to income limits. Compounded over a 35-year career, these annual contributions can grow into a six- or seven-figure tax-free nest egg — making the Roth IRA a cornerstone of most retirement plans.

How a Roth IRA works

A Roth IRA is structured around four key tax mechanics that distinguish it from other retirement accounts:

1. Contributions are after-tax. You contribute money you've already paid income tax on. There's no current-year tax deduction (unlike a traditional IRA or 401(k)). For a 22% marginal bracket earner, contributing $7,500 means having earned $9,615 pre-tax.
2. Investments grow tax-free. Inside the Roth IRA, your investments compound without any annual tax drag — no taxes on dividends, interest, or capital gains. Over decades, this is enormously powerful.
3. Qualified withdrawals are tax-free. Once you reach age 59½ AND have had a Roth IRA open for at least 5 years, all withdrawals are completely tax-free — including all the accumulated growth.
4. No required minimum distributions (RMDs). Unlike traditional IRAs and 401(k)s (which require RMDs starting at age 73), Roth IRAs have no RMDs during the owner's lifetime. You can let your Roth grow indefinitely, withdraw as needed, or leave the entire balance to heirs.

The Roth IRA is held with a custodian — typically a brokerage like Fidelity, Charles Schwab, Vanguard, or Robinhood. You decide what to invest in within the account: stocks, bonds, mutual funds, ETFs, or any combination. The IRA wrapper provides the tax benefits; the underlying investments determine your returns.

2026 Roth IRA contribution limits

This limit is shared across all your traditional and Roth IRAs combined. Contributions must come from earned income.

Roth IRA income limits & phaseout

Your ability to contribute directly phases out at higher Roth IRA income limits:

Roth IRA vs. traditional IRA

Roth IRA vs. Roth 401(k)

Both Roth IRAs and Roth 401(k)s offer the same basic tax structure (after-tax contributions, tax-free growth, tax-free qualified withdrawals), but they have important practical differences:

Optimal funding order for most savers: 1) Roth 401(k) up to employer match (free money). 2) Roth IRA up to $7,500/year (better investment options). 3) Back to Roth 401(k) up to the $24,500 limit (higher contribution capacity). 4) HSA if eligible (triple tax advantage). 5) Backdoor Roth IRA if income exceeds direct contribution limits. 6) Taxable brokerage account.

Growth example

Contributing the max $7,500/year from age 30 to 65 at 7% return:

Investment growth accounts for 76% of the balance — all tax-free with a Roth IRA.

Monthly contribution comparison

30-year projection at 7% annual return. $625/mo = max contribution ($7,500/yr).

Why starting age matters: the cost of waiting

The single most important variable in retirement saving is time. Compounding rewards early starts asymmetrically — every year you delay costs more than the year before. Consider three scenarios, all assuming $7,500/year contributions and 7% annual return:

Key insight: Starting at age 22 instead of age 30 means contributing $60,000 more total but ending with nearly $1 million more — almost 16x return on the extra contribution. Starting at age 22 vs age 50 means the $210,000 difference in total contributions becomes a $1.9 million difference in retirement balance.

If you have a young child, grandchild, or know a teenager with earned income from a summer job, encourage them to open a custodial Roth IRA. Even modest contributions ($1,000-$3,000/year) starting at age 16 can grow into hundreds of thousands by retirement.

Withdrawal rules & the 5-year rule

Roth IRA withdrawal rules are nuanced because contributions and earnings are treated differently:

The two 5-year rules:

• Rule 1 — Earnings withdrawal: 5 years from your first Roth IRA contribution (clock starts January 1 of the year of your first contribution, regardless of when in the year you actually contribute).
• Rule 2 — Conversions: Each Roth conversion has its own 5-year clock for penalty-free withdrawal of the converted amount (if you're under 59½). Multiple conversions stack — each must satisfy its own 5-year clock.

Exceptions to the 10% early withdrawal penalty (still owe income tax on earnings): up to $10,000 for first-time home purchase, qualified higher education expenses, qualified medical expenses exceeding 7.5% of AGI, health insurance premiums during unemployment, disability, and substantially equal periodic payments (Rule 72(t)).

Backdoor Roth IRA explained

If your income exceeds the Roth IRA income limits, the backdoor Roth strategy lets you contribute indirectly. The IRS specifically allows this approach (no income limits on Roth conversions since 2010):

1. Step 1: Contribute up to $7,500 to a traditional IRA (no income limit on non-deductible contributions). Your contribution is non-deductible because your income exceeds traditional IRA deduction phase-outs.
2. Step 2: Wait briefly (a few days to a week) — though no specific waiting period is required by law.
3. Step 3: Convert the traditional IRA to a Roth IRA. Your custodian (Fidelity, Schwab, etc.) handles this with a few clicks online.
4. Step 4: File Form 8606 with your tax return to report both the non-deductible contribution AND the conversion. Critical — without Form 8606, you might be double-taxed on the conversion.

Pro-rata rule warning: If you have any pre-tax money in any traditional IRA, SEP IRA, or SIMPLE IRA, the IRS treats all your IRA money as one pool. You cannot selectively convert just the non-deductible portion. Example: $7,500 non-deductible contribution + $42,500 existing pre-tax IRA = $50,000 total. Converting $7,500 means only 15% ($1,125) is tax-free, the other 85% ($6,375) is taxable.

Workaround: Roll your pre-tax IRA money into your current 401(k) (if your employer plan accepts incoming rollovers) BEFORE doing the backdoor Roth. This empties your IRAs of pre-tax money, allowing the backdoor conversion to be fully tax-free. Many tech workers and high-income professionals use this technique annually.

Mega backdoor Roth (401k strategy)

The mega backdoor Roth is a powerful but lesser-known strategy that lets some high earners contribute up to ~$45,000/year to a Roth account (vs the standard $7,500 Roth IRA limit). It works through your 401(k):

1. Requires: A 401(k) plan that allows BOTH (a) after-tax contributions beyond the $24,500 employee limit, AND (b) in-service rollovers or Roth in-plan conversions.
2. Annual limit math: Total 401(k) contributions (employee + employer + after-tax) can't exceed $72,000 in 2026. Subtract your $24,500 employee contribution and your employer match (typically $3,000-$10,000), and the remainder ($35,000-$45,000) can go into after-tax 401(k) contributions.
3. The conversion: After making after-tax 401(k) contributions, immediately convert them to your Roth 401(k) (in-plan) or roll them out to a Roth IRA. Done quickly, there's almost no taxable growth on the conversion.

Not all 401(k) plans support this — typically tech companies, large financial firms, and some Fortune 500 plans (Google, Meta, Microsoft, Amazon, JPMorgan) offer it. Check your plan documents for "after-tax contributions" and "in-service rollovers" capability. The mega backdoor Roth can put hundreds of thousands of additional after-tax dollars into Roth wrappers over a career — among the most valuable retirement strategies for high-income tech workers and finance professionals.

Roth conversions & the conversion ladder

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

When Roth conversions make sense:

• You expect higher tax rates in retirement than today
• You're in a temporarily low-income year (job loss, sabbatical, gap year, early retirement)
• Market downturn — convert when balances are temporarily low (you pay tax on the depressed value, then enjoy tax-free recovery)
• You can pay the conversion tax from outside the IRA — preserves full Roth balance for tax-free growth
• Estate planning — heirs benefit from inheriting tax-free Roth assets
• Bridging years between retirement and Social Security/RMDs — strategic conversions before age 73 reduce future RMDs

The Roth Conversion Ladder is a popular strategy for early retirees (FIRE community). Each year you convert a chunk of traditional IRA to Roth IRA. After the 5-year holding period, the converted amount can be withdrawn penalty-free, regardless of age. By starting the ladder at age 50 (or whenever you retire early), you create a stream of converted funds becoming accessible 5 years later — bridging the gap from early retirement to age 59½ when normal Roth withdrawals are penalty-free.

Tax considerations: Conversions count as ordinary income in the conversion year — they can push you into higher tax brackets, increase Medicare IRMAA premiums (2-year lookback), reduce ACA subsidies, and impact other income-tested programs. Plan conversions carefully, often in coordination with a tax professional.

What to invest in within your Roth IRA

A Roth IRA is just an account type — what you invest IN it determines your returns. The optimal allocation depends on your age, risk tolerance, time horizon, and overall portfolio. Common Roth IRA investment options:

• Total Stock Market Index Funds (VTI, FZROX, SWTSX): The simplest, most diversified equity exposure. ~3,500-4,000 US stocks weighted by market cap. Long-term average return ~10% annually.
• S&P 500 Index Funds (VOO, FXAIX, SWPPX): 500 largest US companies. Slightly less diversified than total market but very similar long-term returns.
• Total International Stock Index (VXUS, FZILX, SWISX): Adds international diversification — recommended 20-30% of equity allocation by most advisors.
• Target Date Retirement Funds (e.g., 2065 fund): One-fund solution that automatically adjusts allocation as you age. Slightly higher fees but exceptional simplicity. Examples: Vanguard Target Retirement, Fidelity Freedom, Schwab Target Date.
• Bond Index Funds (BND, FXNAX, SWAGX): Generally hold 0-20% bonds in Roth IRAs (younger savers should be heavily equity; closer to retirement, increase bonds).
• Individual stocks: Riskier but allowed. Concentration risk; not recommended as core holdings for most.
• REITs (real estate investment trusts): Real estate exposure with high dividend yields — particularly tax-advantaged in a Roth IRA since dividends are normally taxable.
• High-yield/high-growth assets: Roth IRAs are ideal for assets you expect to grow most — small-cap stocks, emerging markets, crypto (where allowed). Tax-free growth amplifies the value of these higher-volatility positions.

Asset location strategy: If you have multiple account types (taxable, traditional IRA, Roth IRA), generally hold the highest-growth-potential assets in your Roth (since growth is tax-free) and bonds/REITs/dividend stocks in traditional IRAs (where they'd otherwise be taxed annually).

10 Roth IRA strategies to maximize value

1. Contribute early in the year, not at the deadline. Front-loading $7,500 in January gives 12 extra months of tax-free growth vs waiting until April. Over 30 years, this difference compounds to tens of thousands.
2. Set up automatic contributions. $625/month auto-transferred matches the $7,500 annual maximum. Removes psychological friction and ensures you don't miss the deadline.
3. Use the catch-up contribution if 50+. The extra $1,100 ($7,500 → $8,600) compounded over 15 years adds ~$30,000 to your retirement balance.
4. Open a custodial Roth IRA for your kids. If they have earned income (lawn mowing, babysitting, summer jobs), they can contribute up to their earned income or $7,500, whichever is less. Starting at age 14-16 unlocks 50+ years of tax-free compounding.
5. Use the backdoor Roth if income is too high. No income limit on conversions — high earners can effectively continue contributing through the backdoor.
6. Use the mega backdoor Roth if your 401(k) supports it. Adds $35,000-$45,000/year to Roth wrappers — game-changing if available.
7. Convert in low-income years. Sabbatical, between jobs, early retirement — these are prime times for tax-efficient Roth conversions.
8. Hold high-growth assets in Roth. Asset location matters — put your stock-heavy investments in Roth (where growth is tax-free) and bonds/REITs in traditional accounts.
9. Consider a Roth conversion ladder for early retirement. Convert each year, wait 5 years, withdraw penalty-free regardless of age. Bridges early retirement to age 59½.
10. Coordinate with spouse. If your spouse doesn't work, use a spousal Roth IRA to double your household's annual Roth contribution capacity to $15,000+.

10 common Roth IRA mistakes

1. Not contributing because you "can't afford the maximum." Contribute what you can — even $50/month matters. Time in the market beats market timing.
2. Over-contributing past the income limits. Excess contributions face 6% annual penalty until corrected. Monitor your MAGI before December 31.
3. Withdrawing contributions casually. Withdrawn contributions can't be replaced — you lose the contribution year forever. Only withdraw in true emergencies.
4. Forgetting to file Form 8606 for backdoor Roth. Without Form 8606, the IRS can't track your basis — you might be double-taxed on conversions.
5. Not understanding the pro-rata rule. If you have pre-tax IRA money, your backdoor Roth conversions become partially taxable.
6. Investing too conservatively when young. A 25-year-old with 100% bonds is probably leaving hundreds of thousands on the table over a career. Time horizon supports higher equity allocation.
7. Missing the contribution deadline. April 15 of the following year is firm. Set a calendar reminder.
8. Not naming/updating beneficiaries. Your Roth IRA passes via beneficiary designation, NOT your will. After marriage, divorce, or the death of a beneficiary, update immediately.
9. Tracking 5-year clocks incorrectly. The 5-year rule for earnings withdrawals starts the year of your FIRST Roth contribution to ANY Roth IRA (not per account). Conversion 5-year clocks are separate per conversion.
10. Treating Roth IRA as a "set it and forget it" account. Rebalance annually, increase contributions when income grows, and revisit your strategy at major life events.

How to open a Roth IRA in 2026

Opening a Roth IRA is straightforward. The whole process takes about 15 minutes and can be done entirely online:

1. Choose a brokerage. Top recommendations: Fidelity (no fees, excellent customer service), Charles Schwab (similar to Fidelity), Vanguard (lower-cost index funds, simpler UI). Robinhood, M1, and SoFi also offer Roth IRAs with good fee structures.
2. Provide identification. Social Security number, employer info, basic personal details. Funded with bank account routing/account numbers via ACH transfer (free).
3. Make your first contribution. $0 minimum at most modern brokerages. Start with whatever you can afford.
4. Choose your investments. For most people, a single target-date retirement fund (e.g., 2060 if you're in your late 20s) is the simplest, most appropriate choice. Three-fund portfolios (US stock + international stock + bond index funds) work well for those wanting more control.
5. Set up automatic contributions. $625/month maxes out the $7,500 annual limit. $300/month builds substantial wealth over decades.
6. Name beneficiaries. Critical step often skipped. Your Roth IRA passes by beneficiary designation, not your will.

Avoid full-service advisors who charge 1%+ AUM fees on small Roth IRA balances — those fees can consume 25%+ of long-term returns. Stick with low-cost brokerages and index funds.

Roth IRA in estate planning

A Roth IRA is one of the most tax-efficient assets to leave to heirs. The original owner already paid income tax on contributions, so the entire balance — contributions plus growth — passes to beneficiaries free of federal income tax.

SECURE Act 2.0 rules for inherited Roth IRAs (since 2020):

• Spouses: Most flexibility — can roll into their own Roth IRA, treat as inherited (separate rules), or disclaim. Most spouses elect to treat as their own.
• Non-spouse beneficiaries (most common — adult children): Must empty the inherited Roth IRA within 10 years of the original owner's death. No required annual withdrawals during the 10 years (unlike inherited traditional IRAs in some scenarios). All withdrawals are tax-free as long as the original Roth had been open 5+ years.
• Eligible Designated Beneficiaries (EDBs): Spouses, minor children of the decedent (until they reach age of majority), disabled or chronically ill individuals, individuals less than 10 years younger than the decedent. EDBs can stretch withdrawals over their life expectancy (more favorable than the 10-year rule).

Estate planning best practices: Consider strategic Roth conversions during your lifetime to maximize tax-free assets for heirs. If you expect heirs to be in higher tax brackets than you are now, conversions before death can save the family enormous total tax. Work with an estate attorney for complex situations involving large IRA balances or special-needs beneficiaries.

Roth IRA glossary

After-tax contribution

Money contributed to a Roth IRA from your already-taxed income. No upfront tax deduction, but tax-free growth.

Backdoor Roth

Strategy for high earners exceeding income limits — contribute to a traditional IRA (non-deductible), then convert to a Roth IRA.

Catch-up contribution

Extra $1,100 (in 2026) Roth IRA contribution allowed for individuals aged 50+. Total annual limit: $8,600.

Custodian

The brokerage or financial institution that holds your Roth IRA. Examples: Fidelity, Schwab, Vanguard, Robinhood.

Earned income

Income from work — wages, salary, self-employment, tips. Required to make Roth IRA contributions. Investment income, Social Security, pensions don't count.

5-year rule

Two separate rules: (1) wait 5 years from first Roth contribution before tax-free earnings withdrawal; (2) each Roth conversion has its own 5-year clock.

MAGI (Modified Adjusted Gross Income)

The income figure used to determine Roth IRA contribution eligibility. AGI plus certain add-backs (student loan interest, foreign income exclusion).

Mega backdoor Roth

Advanced strategy using after-tax 401(k) contributions converted to Roth — can add $35-$45K/year to Roth wrappers.

Pro-rata rule

If you have pre-tax money in any traditional IRA, backdoor Roth conversions are taxed proportionally — can complicate the strategy.

Qualified withdrawal

A withdrawal that is fully tax-free and penalty-free. Requires age 59½+ AND 5-year rule satisfied. Some exceptions for first home, disability, etc.

Required Minimum Distribution (RMD)

Mandatory annual withdrawal from retirement accounts. Roth IRAs have NO RMDs during the original owner's lifetime. Inherited Roths follow 10-year rule.

Roth conversion

Moving money from a traditional IRA/401(k) to a Roth IRA. Pay income tax on conversion in that year; tax-free growth thereafter.

Roth conversion ladder

Sequential annual conversions, each accessible penalty-free 5 years later. Used by early retirees to bridge to age 59½.

Spousal Roth IRA

Roth IRA for a non-working spouse, funded by the working spouse's earned income. Doubles a household's annual contribution capacity.

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