Traditional vs. Roth IRA Contribution Limits Calculator: 2026 Guide

What does this mean for you?

If you're under 50 and single with a modified adjusted gross income (MAGI) of $140,000, you can contribute the full $7,500 to a Roth IRA. But if your MAGI hits $155,000, your contribution limit phases out — you can only contribute a reduced amount. At $165,000, you're ineligible for a direct Roth IRA contribution entirely. For a Traditional IRA, if you're covered by a workplace retirement plan like a 401(k), the deduction phases out between $79,000 and $89,000 for single filers. Above $89,000, you can still contribute to a Traditional IRA, but you won't get a tax deduction.

For married couples filing jointly, the Roth IRA phase-out range is $236,000–$246,000. If one spouse is covered by a workplace plan and the other isn't, the non-covered spouse's Traditional IRA deduction phases out between $236,000 and $246,000. These numbers come directly from the IRS's 2026 inflation adjustments, published in late 2025.

To use the calculator effectively, you need three numbers: your MAGI, your age, and whether you're covered by a workplace retirement plan. The IRS provides a worksheet in Publication 590-A, but the simplest method is to use the IRS's official IRA contribution limit page for the base limits, then apply the phase-out formula. For Roth IRAs, the calculation is straightforward: if your MAGI is below the lower threshold, you can contribute the full amount. If it's within the phase-out range, you reduce your contribution proportionally. For example, a single filer with a MAGI of $157,500 (halfway through the $150,000–$165,000 phase-out) can contribute $3,750 — half of the $7,500 limit.

For Traditional IRAs, the deduction phase-out only applies if you or your spouse is covered by a workplace plan. If neither of you is covered, there's no income limit — you can deduct the full contribution regardless of income. This is a critical distinction that many people miss. According to the Employee Benefit Research Institute's 2025 report, roughly 30% of workers are not covered by a workplace retirement plan, making them eligible for a fully deductible Traditional IRA at any income level.

In short: The 2026 IRA contribution limits are $7,500 ($8,600 for 50+), but your actual limit depends on your MAGI and workplace plan coverage — use the IRS phase-out formula to calculate your exact number.

Decision Framework: 4 Diagnostic Questions

Answer these four questions to find your path:

1. What is your current marginal tax rate? If you're in the 22% bracket or higher, a Traditional IRA gives you an immediate tax deduction worth $1,650 on a $7,500 contribution. If you're in the 12% bracket or lower, the Roth IRA's tax-free growth is more valuable.
2. What do you expect your retirement tax rate to be? If you expect to be in a higher bracket in retirement (e.g., you have a pension or large 401(k) balance), a Roth IRA locks in today's lower rate. If you expect a lower bracket, a Traditional IRA defers taxes to a cheaper time.
3. Is your income above the Roth IRA phase-out? If your MAGI exceeds $165,000 (single) or $246,000 (married), you can't contribute directly to a Roth IRA. You can use a backdoor Roth IRA, but that requires converting a Traditional IRA — and if you have existing pre-tax IRA balances, the pro-rata rule applies.
4. Are you covered by a workplace plan? If yes, your Traditional IRA deduction may be limited. If no, you can deduct the full contribution regardless of income.

What if you have bad credit or high debt?

If you're carrying high-interest credit card debt (average APR 24.7% in 2026, per the Federal Reserve), paying that down before contributing to an IRA is mathematically superior. A $7,500 IRA contribution earning 7% grows to $15,000 in 10 years. Paying off $7,500 in credit card debt at 24.7% saves you $1,852 in interest in the first year alone — a guaranteed return that beats any market investment. Once high-interest debt is gone, then focus on IRA contributions.

What if you're self-employed?

Self-employed individuals have access to SEP IRAs, which allow contributions up to 25% of compensation (max $69,000 in 2026). That's nearly 10 times the IRA limit. If you're self-employed and want to maximize retirement savings, a SEP IRA is the better vehicle. But if you want Roth treatment, you'll need a solo 401(k) with a Roth option — SEP IRAs are pre-tax only.

What if you're divorced or widowed?

Divorced or widowed individuals filing as single or head of household use the same income phase-out ranges as single filers. If you're under 50 and your MAGI is below $150,000, you can contribute the full $7,500 to a Roth IRA. If you're 50 or older, the limit is $8,600. The key is to ensure your MAGI doesn't include alimony (which is taxable) or Social Security benefits (which may be partially taxable).

Your next step: Use the IRS IRA contribution limit page to confirm your base limit, then apply the phase-out formula based on your MAGI and workplace plan coverage.

In short: Choose a Roth IRA if you're in a low tax bracket now and expect higher taxes in retirement; choose a Traditional IRA if you need the deduction now and expect lower taxes later.

Red Flag #1: The 'I'll Deduct It Later' Trap

Many people choose a Traditional IRA for the immediate tax deduction without considering their future tax bracket. If you're in the 22% bracket now and expect to be in the 24% bracket in retirement (due to a pension, Social Security, or RMDs from a 401(k)), you're paying more taxes later than you saved today. The math: a $7,500 Traditional IRA contribution saves you $1,650 now (22% of $7,500). But if you withdraw that $7,500 plus growth in retirement at 24%, you owe $1,800 on the contribution alone — a net loss of $150. Over 30 years of growth, the loss compounds.

Red Flag #2: The 'I Make Too Much for a Roth' Myth

If your MAGI exceeds the Roth IRA phase-out limits, you can still use a backdoor Roth IRA: contribute to a Traditional IRA (non-deductible), then convert it to a Roth IRA. There's no income limit on conversions. The catch: if you have existing pre-tax IRA balances (from previous Traditional IRA contributions or rollovers), the pro-rata rule applies — you'll owe taxes on a portion of the conversion. According to the IRS, the pro-rata rule treats all your IRA balances as one pool. If you have $50,000 in pre-tax IRAs and convert $7,500, 87% of the conversion is taxable ($50,000 / $57,500 = 87%). To avoid this, roll your pre-tax IRA into a 401(k) before doing the backdoor Roth.

Red Flag #3: The 'I Can Contribute Anytime' Mistake

IRA contributions for a given tax year must be made by the tax filing deadline (typically April 15 of the following year). Many people miss this deadline and lose the tax-advantaged space permanently. For 2026, you have until April 15, 2027, to make your 2026 IRA contribution. Set a calendar reminder for March 2027 to ensure you don't miss it.

Red Flag #4: The 'I Don't Need to Track MAGI' Oversight

Your MAGI determines both your Roth IRA eligibility and your Traditional IRA deduction. MAGI is calculated by adding back certain deductions to your adjusted gross income (AGI), including student loan interest, IRA deductions, and foreign earned income exclusion. If you're close to the phase-out limits, a small change in income — like a bonus or capital gain — can push you over the threshold. Use the IRS's Publication 590-A worksheet to calculate your MAGI accurately.

The CFPB has received complaints about brokers charging hidden fees on IRA accounts, including account closure fees ($50–$100) and annual maintenance fees ($25–$50). Always read the fee schedule before opening an account. According to the SEC's 2025 report on retirement account fees, the average investor pays 0.45% in annual fees, but those in low-cost index funds pay just 0.05%.

Your next step: Review your current IRA type and projected retirement tax bracket. If you're in a Traditional IRA and expect higher taxes in retirement, consider converting to a Roth IRA — but be aware of the tax bill on the conversion.

In short: Most people overpay by choosing the wrong IRA type, missing the contribution deadline, or ignoring the pro-rata rule on backdoor Roth conversions.

The Math: Best, Average, and Worst Scenarios Over 5 Years

Best case: A 30-year-old single filer earning $60,000 (12% bracket) contributes $7,500 annually to a Roth IRA for 5 years. Total contributions: $37,500. At 7% annual return, the account grows to $45,000. Withdrawals in retirement are tax-free. Tax savings vs. a taxable account: roughly $3,000 (assuming 15% capital gains rate).

Average case: A 45-year-old married filer earning $150,000 (22% bracket) contributes $7,500 annually to a Traditional IRA for 5 years. Total contributions: $37,500. Tax deduction saves $8,250 over 5 years. At 7% return, the account grows to $45,000. Withdrawals in retirement are taxed at 22%, costing $9,900 in taxes. Net benefit: $8,250 saved minus $9,900 paid = net loss of $1,650.

Worst case: A 55-year-old high earner earning $300,000 (35% bracket) contributes $8,600 annually to a Traditional IRA for 5 years. Total contributions: $43,000. Tax deduction saves $15,050 over 5 years. At 7% return, the account grows to $52,000. Withdrawals in retirement are taxed at 35%, costing $18,200 in taxes. Net loss: $3,150.

✅ Best for: Young professionals in the 12% bracket, anyone expecting higher taxes in retirement, and those who want tax-free withdrawals.

❌ Avoid if: You're in a high tax bracket now and expect lower taxes in retirement, or you need the immediate tax deduction to reduce your current tax bill.

Your next step: Open a Roth IRA at Vanguard, Fidelity, or Charles Schwab. Contribute the maximum allowed for 2026 ($7,500 if under 50, $8,600 if 50+). Set up automatic monthly contributions of $625 to hit the limit by year-end.

In short: The best deal goes to those who can max out a Roth IRA at a low tax rate — they get tax-free growth and no RMDs, maximizing long-term wealth.