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Open the Calculator →For 2026, the IRS Roth IRA contribution limit is $7,500 (up from $7,000 in 2025). Workers age 50 and over add a $1,100 catch-up for $8,600 (up from $1,000 / $8,000 in 2025). Direct Roth IRA contributions phase out for Single and Head of Household filers between $153,000 and $168,000 of MAGI; for Married Filing Jointly between $242,000 and $252,000; and for Married Filing Separately who lived with their spouse, between $0 and $10,000. Above the upper threshold, the backdoor Roth IRA strategy remains available. Roth IRAs have no lifetime RMDs for the original owner.
- 2026 Roth IRA contribution limit: $7,500 (IRC §219(b), per IRS Notice 2025-67).
- Age 50+ catch-up: $1,100 for 2026 (now COLA-adjusted under SECURE 2.0 Act §108). Personal max: $8,600.
- Single / HOH phase-out: $153,000 - $168,000 MAGI (range $15,000).
- MFJ / QSS phase-out: $242,000 - $252,000 MAGI (range $10,000).
- MFS-Together phase-out: $0 - $10,000 MAGI (statutory, never adjusted). MFS-Apart treated as Single.
- Spousal IRA rule (IRC §219(c)): MFJ filers can fund a Roth IRA for a non-earning spouse from joint compensation.
- Backdoor Roth IRA available above the MAGI cap; pro-rata aggregation rule applies.
- Roth IRAs have no lifetime RMDs for the owner (IRC §408A(c)(5)). 5-year rule applies for tax-free earnings withdrawal.
- Excess contributions taxed at 6% per year under IRC §4973; withdraw excess plus earnings by tax return due date.
The 2026 Roth IRA Limits at a Glance
The IRS published 2026 retirement plan cost-of-living adjustments in Notice 2025-67 (released October 2025). These numbers govern Roth IRA contributions for the calendar year 2026 plus the spillover Tax Year 2025 contribution window through April 15, 2026.
| Limit / Threshold | 2026 | 2025 | Change |
|---|---|---|---|
| Base contribution (§219(b)) | $7,500 | $7,000 | +$500 |
| Catch-up age 50+ (SECURE 2.0 §108) | $1,100 | $1,000 | +$100 |
| Personal limit under 50 | $7,500 | $7,000 | +$500 |
| Personal limit age 50+ | $8,600 | $8,000 | +$600 |
| Single / HOH MAGI lower | $153,000 | $150,000 | +$3,000 |
| Single / HOH MAGI upper | $168,000 | $165,000 | +$3,000 |
| MFJ / QSS MAGI lower | $242,000 | $236,000 | +$6,000 |
| MFJ / QSS MAGI upper | $252,000 | $246,000 | +$6,000 |
| MFS-Together MAGI range | $0 - $10,000 | $0 - $10,000 | None (statutory) |
The most consequential change for 2026 is the catch-up rising from $1,000 to $1,100 - the first time the catch-up has moved since it was introduced in 2002. Under SECURE 2.0 Act section 108, the IRA catch-up is now subject to an annual cost-of-living adjustment matching the base limit, so future increases will arrive in $100 increments.
The $7,500 Base Contribution and Combined IRA Cap
The base limit codified in IRC section 219(b) for 2026 is $7,500. This cap applies to the total of all your traditional and Roth IRA contributions combined - you cannot contribute $7,500 to a traditional IRA and another $7,500 to a Roth IRA. The cap is across all your IRAs, not per IRA.
Practical implications:
- Compensation cap: Per IRC section 219(b)(1)(B), total IRA contributions cannot exceed your taxable compensation for the year. Wages, salary, tips, and self-employment net earnings count. Investment income, Social Security benefits, unemployment compensation, child support, and pension income do not.
- Spousal exception: A married couple filing jointly can use the Spousal IRA rule (IRC section 219(c)) to fund an IRA for a non-earning spouse using the working spouse's compensation.
- No age limit on contributions: Since the SECURE Act of 2019, there is no maximum age for contributing to a Roth IRA (or a traditional IRA) as long as you have earned income. Pre-SECURE Act, traditional IRA contributions stopped at age 70 1/2.
- Tax year window: You can make 2026 Roth IRA contributions up through the original April 15, 2027 tax filing deadline. Contributions made between January 1 and April 15 of the following year can be designated as either tax-year contributions if you elect.
The Age 50+ Catch-Up Contribution
IRC section 219(b)(5) permits an additional "catch-up" contribution for taxpayers who reach age 50 by the end of the calendar year. For 2026 the IRA catch-up is $1,100, up from $1,000 for 2025. This is the first increase since the catch-up was introduced because SECURE 2.0 Act section 108 amended the rule to receive an annual cost-of-living adjustment going forward.
The catch-up window opens on January 1 of the year you turn 50, not on your birthday. A worker who turns 50 in November 2026 can use the full $1,100 catch-up over the entire 2026 contribution window, including months before the birthday and the spillover window through April 15, 2027.
Catch-Up by Age (2026)
| Age at Year-End | Base Limit | Catch-Up | Personal Max |
|---|---|---|---|
| Under 50 | $7,500 | $0 | $7,500 |
| 50 and over | $7,500 | $1,100 | $8,600 |
Unlike 401(k) plans, IRAs do NOT have a SECURE 2.0 super catch-up tier for ages 60-63. The IRA catch-up structure is single-tier: under 50 or 50+, no enhanced bracket for older ages.
MAGI Phase-Out Mechanics by Filing Status
The Roth IRA contribution limit phases out as your Modified Adjusted Gross Income (MAGI) approaches the upper threshold for your filing status. The phase-out is statutory under IRC section 408A(c)(3), and the calculation method is documented in IRS Publication 590-A Worksheet 2-2.
2026 Phase-Out Ranges by Filing Status
| Filing Status | Full Contribution | Partial Contribution | Zero Contribution |
|---|---|---|---|
| Single / HOH | MAGI < $153,000 | $153,000 - $168,000 | MAGI > $168,000 |
| MFJ / QSS | MAGI < $242,000 | $242,000 - $252,000 | MAGI > $252,000 |
| MFS - Lived Apart | Treated as Single | $153,000 - $168,000 | MAGI > $168,000 |
| MFS - Lived With Spouse | MAGI = $0 | $0 - $10,000 | MAGI > $10,000 |
The Reduced Contribution Formula
When your MAGI is inside the phase-out range, the reduced contribution is computed via Pub 590-A Worksheet 2-2:
- Subtract MAGI from the upper threshold (or, for MFS-Together, from $10,000)
- Divide by the phase-out range width ($15,000 for Single/HOH; $10,000 for MFJ/QSS; $10,000 for MFS-Together)
- Multiply by the applicable full limit ($7,500 base, or $8,600 if 50+)
- Round up to the next $10
- Apply the $200 statutory floor under IRC section 408A(c)(3)(D): if the result is greater than $0 but less than $200, the limit is $200
Worked example: a Single filer age 45 with MAGI $160,000 in 2026. ($168,000 - $160,000) / $15,000 = 0.5333. 0.5333 × $7,500 = $4,000. Rounded up to $4,000 (no rounding needed). The $200 floor does not apply. Maximum Roth IRA contribution: $4,000.
The MFS-Together Cliff
Married Filing Separately taxpayers who lived with their spouse during any part of the year face the harshest Roth IRA phase-out: full eligibility only at MAGI $0, fully phased out at MAGI $10,000. The range has been statutory and unchanged since 1998. Couples filing separately for student loan repayment optimization, spousal debt protection, or income-driven repayment plans should weigh the lost Roth eligibility against the targeted savings. Often MFJ wins on net.
Note that MFS taxpayers who lived APART from their spouse the entire year are treated as Single under IRC section 408A(c)(3)(B)(ii). A separated couple who maintained separate residences for all 12 months of 2026 can each use the Single phase-out ($153K - $168K).
What Counts as MAGI for Roth IRA
MAGI for Roth IRA contribution purposes (defined under IRC section 408A(c)(3)(B)) is your Adjusted Gross Income (AGI) from Form 1040 line 11, plus several add-backs. The full list:
- Foreign earned income exclusion (Form 2555)
- Foreign housing exclusion or deduction
- Savings bond interest exclusion (Form 8815)
- Employer adoption benefits exclusion (Form 8839)
- Traditional IRA deduction (yes, the deduction is added back even though you took it)
- Student loan interest deduction
MAGI for Roth IRA purposes EXCLUDES income from a Roth IRA conversion. This is a critical special rule: if you do a $100,000 Roth conversion in 2026, that $100,000 does not push you above the contribution phase-out for the same year. So you can do a large conversion without losing Roth contribution eligibility.
For most taxpayers without these specific add-backs, MAGI is essentially equal to AGI. The most common way ordinary filers see a difference is the student loan interest deduction (worth up to $2,500 below-the-line) being added back. See IRS Publication 590-A Worksheet 2-1 for the precise step-by-step calculation.
The Spousal IRA Rule
Under the Kay Bailey Hutchison Spousal IRA rule (IRC section 219(c)), a married couple filing jointly can fund a Roth IRA for a non-earning or low-earning spouse using the working spouse's taxable compensation. The rule converts a single-earner household into a two-IRA household, doubling the Roth contribution capacity.
How it works for 2026:
- Each spouse can contribute up to the full $7,500 limit ($8,600 if 50+) individually.
- The combined contribution cannot exceed the joint taxable compensation reported on the return.
- The MAGI phase-out applies to each spouse based on the joint MFJ thresholds ($242,000 - $252,000 for 2026).
- The non-working spouse's IRA must be established in the non-working spouse's name. It is the non-working spouse's IRA, not the working spouse's spousal account.
- Divorce treatment: at divorce, each spouse keeps their own IRA. The spousal IRA is the non-working spouse's property.
Worked example: Working spouse (age 35, $90,000 W-2 wages) and non-earning spouse (age 33, $0 wages). MAGI is $90,000 - well below the $242,000 MFJ threshold. Each spouse can contribute the full $7,500. Combined: $15,000. Working spouse's $90,000 compensation easily covers both. Net: $15,000 of Roth contributions in a household where only one spouse worked.
The Backdoor Roth IRA Strategy
If your MAGI exceeds the upper phase-out threshold, you cannot contribute directly to a Roth IRA. The backdoor Roth IRA is a legal two-step workaround:
- Step 1: Make a non-deductible traditional IRA contribution. There is NO income limit on non-deductible contributions to a traditional IRA (per IRC section 408(o)). You can contribute up to $7,500 (or $8,600 if 50+) to a traditional IRA at any income level. Report on Form 8606 to establish your basis.
- Step 2: Convert to Roth IRA. Use a Roth conversion to move the traditional IRA balance to a Roth IRA. The conversion is taxable to the extent of any pre-tax balance across all your traditional, SEP, and SIMPLE IRAs (the pro-rata aggregation rule under IRC section 408(d)(2)). If you have no other pre-tax IRA balances, the conversion is essentially tax-free since you contributed after-tax dollars.
The Pro-Rata Trap
The standard fix is to roll your pre-tax IRA balances into a current 401(k) plan first (if the plan accepts incoming rollovers), isolating the after-tax basis in the traditional IRA before doing the conversion. The 401(k) is not aggregated with IRAs for the pro-rata calculation, so this move "cleans up" the IRA side. Once the only balance in your traditional IRA is your $7,500 non-deductible contribution, the conversion is tax-clean. For the full conversion mechanics, the per-conversion 5-year clock, IRMAA two-year lookback, and bracket-fill strategy, read our Roth Conversion Tax Guide; model the federal tax cost of a specific conversion in the Roth Conversion Tax Calculator.
Form 8606 Tracking
Every non-deductible traditional IRA contribution must be reported on Form 8606. Failure to file Form 8606 results in losing the basis: you will end up paying tax on the contribution AND tax on the eventual withdrawal, double-taxation. Even if you skip the conversion in a given year, file Form 8606 to document the basis. The IRS imposes a $50 penalty for missed Form 8606 filings, but the bigger cost is the lost basis tracking.
The Step Doctrine Question
Some commentators have questioned whether the IRS can challenge backdoor Roth conversions under the step transaction doctrine, treating the contribution and immediate conversion as a single prohibited contribution. Congress effectively ratified the strategy in the explanatory statement to the Tax Cuts and Jobs Act of 2017, which acknowledged that "backdoor Roth contributions are permissible." The IRS has not challenged the strategy in audits as of 2026. Practitioners commonly recommend waiting at least one day between the contribution and conversion.
Roth IRA vs Traditional IRA
Both flavors share the same $7,500 / $8,600 contribution limit for 2026. The difference is when you pay tax and what restrictions apply:
| Feature | Roth IRA | Traditional IRA |
|---|---|---|
| Tax treatment of contribution | After-tax (no deduction) | Pre-tax if deductible |
| Tax treatment of growth | Tax-free | Tax-deferred |
| Tax treatment of qualified withdrawal | Tax-free (if 59½ and 5-year rule met) | Ordinary income |
| 2026 contribution limit | $7,500 ($8,600 if 50+) | $7,500 ($8,600 if 50+) |
| MAGI limit on contribution (Single, 2026) | $153K - $168K phase-out | None for contribution |
| MAGI limit on deduction (covered by workplace plan, Single, 2026) | N/A (no deduction) | $81K - $91K phase-out |
| MAGI limit on deduction (MFJ both covered, 2026) | N/A (no deduction) | $129K - $149K phase-out |
| Lifetime RMDs for owner | None (IRC §408A(c)(5)) | Required at age 73 (rising to 75 in 2033) |
| 5-year holding period for tax-free earnings | Yes (IRC §408A(d)(2)) | N/A (earnings always taxable) |
| Early withdrawal penalty (under 59 1/2) | 10% on earnings only; contributions can be withdrawn anytime | 10% on entire withdrawal (with exceptions) |
| First-time home purchase exception | $10,000 lifetime, after 5-year rule | $10,000 lifetime, no 5-year rule |
The choice between Roth and traditional turns on your current marginal tax rate compared to your expected retirement marginal rate. Higher current rate = traditional generally wins. Higher retirement rate = Roth generally wins. The same dollar contribution has equal value if rates are equal. Most workers under age 40 in moderate tax brackets benefit from Roth. The decision is also influenced by RMD planning - Roth IRAs avoid lifetime RMDs entirely, so they can grow tax-free for the owner's full life.
The 5-Year Rule for Roth IRA Withdrawals
The 5-year rule under IRC section 408A(d)(2) requires that earnings withdrawn from a Roth IRA be tax-free only if the account has been open for at least 5 tax years AND the owner is at least 59 1/2 (or meets a qualifying exception such as first-time home purchase up to $10,000, disability, or death of the account owner).
Three things to know about the 5-year clock:
- The clock starts on January 1 of the tax year of your first Roth IRA contribution. A first contribution made in March 2026 for tax year 2026 starts the clock retroactive to January 1, 2026. A first contribution made in March 2026 for tax year 2025 (using the spillover window) starts the clock at January 1, 2025. So contributing for the prior year through April 15 saves you a full calendar year on the 5-year clock.
- One clock per Roth IRA owner. Once you have any Roth IRA open for 5 tax years, the rule is satisfied for ALL your Roth IRAs going forward. You do not need a separate 5-year clock for each Roth IRA you open.
- Conversions have separate 5-year clocks. Each Roth conversion starts its own 5-year clock for the converted amount. You can withdraw a Roth conversion principal tax-free immediately, but if under 59 1/2 you face a 10% penalty until the 5-year clock for that specific conversion expires.
The Three Tiers of Roth IRA Withdrawals
Roth IRA withdrawals are treated in this order under the IRS ordering rules:
- Contributions (always tax-free and penalty-free, regardless of age or 5-year rule)
- Conversions (tax-free since already taxed at conversion; 10% penalty if withdrawn within 5 years of the specific conversion and you are under 59 1/2)
- Earnings (tax-free only if 5-year rule met AND owner is 59 1/2 or older or qualifying exception)
This ordering means the practical "lockup" on a Roth IRA is much weaker than people think. Contributions are always accessible. Even conversions become accessible after 5 years. Only earnings are subject to both age and 5-year limits.
Roth IRAs and Required Minimum Distributions
Roth IRAs are not subject to lifetime required minimum distributions (RMDs) for the original owner, regardless of age. Per IRC section 408A(c)(5), the RMD rules under section 401(a)(9) do not apply to Roth IRA owners during their lifetime. The owner can let the entire balance grow tax-free for life and pass the account to heirs.
Beneficiaries who inherit a Roth IRA are subject to RMDs under the SECURE Act 10-year rule. The full account must generally be distributed by the end of the 10th year following the original owner's death. Limited exceptions for "eligible designated beneficiaries":
- Surviving spouse (can treat as own IRA)
- Disabled or chronically ill beneficiary
- Minor child of the original owner (10-year clock starts at age of majority)
- Beneficiary within 10 years of the decedent's age
Since 2024 (under SECURE 2.0 Act section 325), Roth 401(k) accounts also no longer have lifetime RMDs. So designated Roth accounts in workplace plans now match Roth IRAs. Pre-2024 Roth 401(k) RMDs are not retroactive.
Excess Contributions and the 6% Excise Tax
Excess Roth IRA contributions are taxed at 6 percent per year for each year the excess remains in the account, under IRC section 4973. The 6 percent tax is recurring - if you do not fix the excess, you owe 6 percent every single year until you remove it.
Three ways to fix an excess contribution:
- Withdraw the excess plus earnings by the tax return due date (including extensions). The earnings are taxable in the contribution year. This is the cleanest fix.
- Recharacterize as a traditional IRA contribution. A direct trustee-to-trustee transfer to a traditional IRA before the return due date converts the contribution into a traditional IRA contribution. Recharacterization of a Roth IRA contribution is still permitted (note: recharacterization of a Roth conversion has been prohibited since 2018).
- Apply the excess to a future year if you have headroom. The 6 percent tax still applies for the year the excess was first contributed, but you avoid the recurring tax going forward.
The 6 percent tax cannot exceed 6 percent of the combined value of all your IRAs at year-end. So if your IRAs are worth less than the excess (rare), the tax is capped at 6 percent of the IRA value rather than 6 percent of the excess.
State Income Tax on Roth IRA
Most states with an income tax conform to federal Roth IRA treatment: contributions are after-tax federally and at the state level; qualified distributions are tax-free at both levels. A few state-specific considerations:
- Pennsylvania taxes Roth IRA earnings differently from the federal treatment in some scenarios; consult a PA-licensed CPA if your account holds significant earnings.
- New Jersey uses unique IRA basis tracking for state purposes. Distributions from NJ residents may have different state taxable treatment than federal.
- States with no income tax (AK, FL, NV, SD, TN, TX, WA, WY) - federal Roth treatment is the only consideration.
- Move-states retirement: If you live in a high-tax state during accumulation and move to a no-tax state in retirement, both Roth and traditional benefit from the lower retirement-state tax. But Roth offers more certainty since there is no withdrawal-time state tax exposure regardless of where you retire.
Real-World Scenario - Maya, Age 32, Single, $160K Salary in 2026
Maya's MAGI of $138,000 is well below the 2026 Single phase-out start of $153,000, so she gets the full $7,500 Roth IRA contribution. Her $22,000 pre-tax 401(k) reduced her MAGI from $160K wages to $138K MAGI, which is exactly the kind of move that keeps high earners eligible for direct Roth contributions. Combined with the 401(k), Maya is putting $29,500 toward retirement in 2026 - $22,000 pre-tax, $7,500 Roth - on a $160,000 salary.
The single most expensive Roth IRA mistake we see at LMN Tax Inc is high earners doing a backdoor Roth without checking their existing IRA balances first. A client comes in with $250,000 in a rollover IRA (from a prior 401(k)), contributes $7,500 to a non-deductible traditional IRA, converts to Roth, and expects a tax-free conversion. They are shocked when their tax preparer reports a $2,000+ surprise tax bill from the pro-rata rule. The fix takes minutes: roll the rollover IRA balance back into the current employer's 401(k) plan (if the plan accepts incoming rollovers - most large plans do). That isolates the $7,500 after-tax basis in the traditional IRA and makes the next backdoor conversion fully tax-free. After this one-time setup, every future year's backdoor Roth runs clean. We see clients miss this because they treat the backdoor Roth as a simple contribution-then-convert step without thinking about the cross-account aggregation. The pro-rata aggregation rule is the single most important rule in the backdoor Roth playbook. Always check Form 8606 from prior returns for any existing nondeductible basis, and always run a "clean-up the IRA side" inventory before the first conversion of the year.
Situations Where This Guide Does Not Apply
- Self-employed compensation: Net earnings from self-employment minus the deductible portion of SE tax minus the deductible self-employed retirement plan contribution. The compensation cap may be lower than gross self-employment income. Use the SEP IRA vs Solo 401(k) Calculator to coordinate self-employed retirement plans with Roth IRA contributions.
- Roth conversions: Income from a Roth IRA conversion is excluded from MAGI for Roth IRA contribution purposes, but is included in your AGI for all other purposes - including IRMAA Medicare premiums, ACA premium tax credit, Social Security tax torpedo, and the Saver's Credit AGI cap. Plan conversions carefully when these other benefits matter.
- Foreign earned income excluders: If you exclude foreign earned income under section 911, your taxable compensation for IRA purposes is reduced by the exclusion. You may have zero contributable compensation even with substantial gross wages abroad.
- Inherited Roth IRAs: Beneficiary contribution rules do not apply (the inherited IRA is a separate account from any Roth IRA you may own), but the SECURE Act 10-year rule for distributions does. This guide addresses owner contributions only.
- Roth conversion recharacterization: Recharacterization of a Roth IRA conversion has been prohibited since 2018 (Tax Cuts and Jobs Act). Once you convert, the conversion is final. Recharacterization of a Roth IRA contribution remains permitted before the return due date.
- Multiple Roth IRA accounts: The $7,500 / $8,600 limit is a total across all your Roth IRAs combined, not per account. Splitting between two providers does not increase the limit.
- Mega Backdoor Roth (workplace plan): If you have access to a 401(k) plan that allows voluntary after-tax contributions plus in-plan Roth rollovers, the Mega Backdoor Roth can move significantly more than the $7,500 IRA limit into Roth status. See the 401(k) Contribution Limits Guide for details. The Mega Backdoor uses 401(k) annual additions room, not the IRA contribution limit.
- State tax conformity: Pennsylvania and New Jersey have unique IRA tax treatment at the state level. Confirm with a state-specific advisor.
- Saver's Credit: Low-to-moderate income taxpayers contributing to a Roth IRA may also qualify for the Saver's Credit (up to $1,000 single / $2,000 MFJ) under IRC section 25B. The 2026 AGI caps are $40,250 single, $60,375 HOH, $80,500 MFJ. Use Form 8880.
Year-End Planning Checklist
- October: Project your year-end MAGI. If you are near the upper phase-out threshold, accelerate any pre-tax 401(k) deferrals or HSA contributions to lower your AGI and stay below the threshold.
- November: If you are age 50 or over, confirm you have included the catch-up in your 2026 contribution plan. The catch-up is per-tax-year, not retroactive.
- December: If you plan a backdoor Roth, audit your existing traditional, SEP, and SIMPLE IRA balances. If pre-tax balances exist and you have access to a 401(k) that accepts incoming rollovers, complete the rollover by December 31 to clear the pro-rata trap before the conversion.
- January through April 15 of the following year: The spillover window. You can still make 2026-tax-year contributions until April 15, 2027. If you missed the December deadline, this gives you a second chance, but the contribution timing affects the 5-year clock.
- Tax filing time: Verify your Roth IRA contribution on Form 5498 (which the IRA custodian sends in May for the prior tax year). Compare against your records and your plan administrator's reporting.
For taxpayers near the phase-out, consider reducing MAGI by maximizing pre-tax 401(k) deferrals (up to $24,500 for 2026), HSA contributions ($4,400 self / $8,750 family for 2026), and timing student loan interest payments to fall into a year where the deduction is helpful. These moves also reduce taxable income directly, so the indirect Roth eligibility benefit stacks on top of the direct tax savings.
Frequently Asked Questions
What To Do Next
If your MAGI is below the phase-out, contribute as early in the year as possible. Roth IRAs grow tax-free, and a January contribution captures roughly 12 months of additional compounding versus an April-of-following-year contribution. Set up an automatic monthly transfer of $625 ($7,500 / 12) or $717 ($8,600 / 12 if 50+) to lock in the full annual contribution.
Use the Roth IRA Contribution Calculator to estimate your 2026 limit instantly based on your filing status, age, MAGI, and earned income. The tool flags backdoor Roth eligibility automatically when you exceed the upper threshold.
If your MAGI exceeds the upper threshold, you cannot contribute directly but the backdoor Roth strategy is available. Before executing, audit existing traditional IRA balances - if you have a pre-tax IRA from a prior 401(k) rollover, consider rolling it into a current 401(k) plan first to avoid the pro-rata aggregation rule. Once the IRA side is "clean," every future year's backdoor Roth runs tax-free.
If you have a workplace 401(k), use the 401(k) Contribution Calculator to compare contribution math across both account types. Roth IRA and 401(k) limits run in parallel, so capturing both maximums is the highest-leverage retirement move available to most W-2 employees.
Self-employed? Use the SEP IRA vs Solo 401(k) Calculator to evaluate higher-limit retirement plan options that stack with Roth IRA contributions for self-employed taxpayers.
For taxpayers age 50 or over, also review the 401(k) Contribution Limits Guide for the SECURE 2.0 super catch-up at ages 60 to 63 and the new Roth catch-up requirement for high earners with prior-year FICA wages above $150,000.
Related Tools and Guides
- IRS News Release IR-2025-111 - 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500. November 13, 2025.
- IRS Notice 2025-67 - 2026 amounts relating to retirement plans and IRAs as adjusted for changes in cost-of-living, October 2025.
- IRS Retirement Topics - IRA Contribution Limits - 2026 limits and catch-up rules; page last reviewed 03-Mar-2026.
- IRS Publication 590-A, Contributions to Individual Retirement Arrangements - includes Worksheet 2-1 (MAGI calculation) and Worksheet 2-2 (reduced Roth contribution).
- IRS Publication 590-B, Distributions from Individual Retirement Arrangements - 5-year rule, ordering rules, RMD treatment.
- 26 U.S.C. §408A - Roth IRAs; phase-out, conversion, and 5-year rules (Cornell LII).
- 26 U.S.C. §219 - retirement savings deduction; spousal IRA under 219(c) (Cornell LII).
- 26 U.S.C. §408 - Individual Retirement Accounts; pro-rata aggregation rule under 408(d)(2) (Cornell LII).
- 26 U.S.C. §4973 - excise tax on excess IRA contributions (Cornell LII).
- SECURE 2.0 Act of 2022 - Public Law 117-328 Division T; section 108 (IRA catch-up COLA), section 325 (Roth 401(k) RMD elimination).
- IRS Form 8606 - Nondeductible IRAs; tracks basis for backdoor Roth conversions.
- IRS Form 5498 - IRA Contribution Information; reported by IRA custodians for tax year confirmation.