This guide covers U.S. federal rules for tax year 2027. It is written for Australian-based U.S. taxpayers and business owners, who also face foreign income, residency and cross-border reporting questions.
The key caution: the IRS COLA page, as at 4 November 2026, lists adjustments only through 2026 (Notice 2025-67). No 2027 retirement-plan COLA notice appears there yet, so 2026 figures below are reference points, not 2027 limits.
Key Takeaways
- Confirm every 2027 limit against the IRS announcement; don't reuse 2026 numbers.
- You can often contribute to a traditional IRA even when the contribution isn't deductible.
- Roth contributions are never deductible, but MAGI and filing status can reduce or block them.
- Compensation, workplace-plan coverage, deadlines and foreign income exclusions can change the outcome.
2027 IRS Income Limits at a Glance
Contribution limits versus income limits
An annual contribution limit caps what you can put in. An income limit decides whether you may contribute to a Roth, or whether a traditional IRA deduction is reduced or eliminated. The dollar cap applies to all your traditional and Roth IRAs combined, per IRS Publication 590-A.
Latest confirmed figures (tax year 2026)
- IRA contribution limit: $7,500, plus a $1,100 catch-up at age 50+ (up to $8,600, subject to compensation).
- Roth MAGI phaseout: $153,000-$168,000 single or head of household; $242,000-$252,000 married filing jointly.
- Married filing separately and lived with spouse at any time in the year: $0-$10,000 for Roth.
Traditional IRA deduction phaseouts for 2026:
| Coverage and filing status | MAGI phaseout |
|---|---|
| Covered, single or head of household | $81,000-$91,000 |
| Covered, married filing jointly | $129,000-$149,000 |
| Not covered, spouse covered, joint | $242,000-$252,000 |
| Married filing separately (lived with spouse) | $0-$10,000 |
| Neither spouse covered | No phaseout |
Catch-up eligibility never removes the compensation requirement. Your contribution can't exceed your taxable compensation.
Quick checklist
- Confirm the tax year.
- Confirm filing status and age.
- Calculate the correct MAGI.
- Check workplace-plan coverage for you and your spouse.
- Confirm earned compensation.
- Remember traditional and Roth share one annual limit.
Traditional IRA Contribution and Deduction Limits
Contribution eligibility generally depends on taxable compensation, not an income ceiling. MAGI and workplace-plan coverage restrict deductibility. A spouse with little or no income may contribute under the spousal IRA rule on a joint return, if combined compensation supports it.
MAGI for the deduction
Don't substitute gross income or take-home pay. Publication 590-A, Worksheet 1-1, starts with AGI computed without the IRA deduction. It then adds back items such as the student-loan interest deduction, Section 911 foreign earned income and housing exclusions, and the foreign housing deduction.
How the rules sort out
- Neither spouse covered: fully deductible at any income.
- You're covered: phaseout depends on filing status.
- You're not covered, spouse is: a much higher joint phaseout applies.
- Married filing separately: the range is tiny if you lived with your spouse.
Hypothetical examples
Apply the same contribution under three scenarios once the relevant 2027 phaseout ranges are published:
- Single, covered, MAGI below the range: full deduction.
- Single, covered, MAGI inside the range: partial deduction.
- Married filing separately, lived together, any meaningful MAGI: likely no deduction.
Nondeductible contributions
Report these on Form 8606. It tracks your after-tax basis so later distributions or conversions aren't taxed twice. See the Form 8606 instructions for when filing is required.
Roth IRA Income Limits and Contributions
Roth contributions use after-tax money and aren't deductible. MAGI and filing status decide whether you can contribute fully, partially or not at all.
For 2026, the range runs from a lower threshold (full contribution below it) through the phase-out to an upper threshold (no direct contribution above it). Confirm 2027 ranges in the IRS annual notice once it is released.
Roth MAGI is its own calculation
Worksheet 2-1 in Publication 590-A starts with AGI, subtracts Roth conversion amounts, and adds back items including the Section 911 exclusions and foreign housing deduction. For Australian-based filers this matters: excluded foreign earnings still count toward Roth MAGI.
Married filing separately
If you lived with your spouse at any point in the year, the $0-$10,000 style range applies. If you lived apart all year, single-type thresholds apply. Never treat this status like single filing without checking.
When income exceeds the limit
A traditional-to-Roth conversion can be an option, but it isn't universally appropriate:
- Form 8606 applies a pro-rata rule across all traditional, SEP and SIMPLE IRA balances.
- Existing pre-tax balances make part of any conversion taxable.
- Year-end balances drive the calculation, so timing matters.
- Conversions made after 2017 can't be recharacterised.
Get individual tax advice before relying on this route.
Other Income-Sensitive Retirement Limits
Employer plans
2026 figures from Notice 2025-67; 2027 amounts are pending:
| Limit | 2026 |
|---|---|
| 401(k), 403(b), governmental 457(b) deferral | $24,500 |
| Age 50+ catch-up | $8,000 |
| Age 60-63 catch-up | $11,250 |
| Section 415(c) annual additions | $72,000 |
| Compensation limit | $360,000 |
Higher earners (prior-year FICA wages above $150,000 from the same employer) face a Roth catch-up requirement. The Social Security wage base is separate: $184,500 for 2026 and $192,300 for 2027, per the SSA.
SEP and SIMPLE IRAs
- SEP: employer contribution is generally the lesser of 25% of compensation or $72,000 (2026), with a special net-earnings formula for the self-employed.
- SIMPLE: $17,000 salary deferral in 2026 ($18,100 under higher-limit rules), with a 3% match or 2% nonelective employer contribution.
Employer contributions are generally deductible to the business, unlike personal Roth contributions.
Saver's Credit becomes Saver's Match
From 2027, the Saver's Credit (50%, 20% or 10% rates) is replaced by the IRS Saver's Match: up to 50% of contributions, capped at $1,000 per person.
Full match AGI ceilings:
- Joint: $41,000
- Head of household: $30,750
- Single: $20,500
Eligibility is separate from IRA eligibility. You must be a U.S. tax resident, age 18 or older, and not a full-time student or dependent.
How to Apply the Rules and Avoid 2027 Errors
A practical sequence
- Identify filing status and age, which determine which 2027 limit table applies.
- Total your eligible compensation, the wage and self-employment base for IRA contributions.
- Check plan coverage for both spouses, since workplace plans change deduction phase-outs.
- Calculate the correct MAGI using the IRA-specific add-backs.
- Choose traditional or Roth treatment based on deduction eligibility and tax timing.
- Compare your MAGI with the official 2027 phase-out ranges before you contribute.
Deadlines and excess contributions
A 2027 IRA contribution is due by the 2027 return due date, without extensions. Excess contributions face a 6% annual excise tax for each year the excess stays in the IRA. Withdraw the excess and its earnings by the return due date, including extensions, to avoid it.
Cross-border cautions for Australia
- Income excluded under Section 911 doesn't count as IRA compensation, yet it's added back for MAGI. Someone excluding all earnings may have no eligible compensation.
- The automatic two-month filing extension abroad doesn't extend the IRA contribution deadline.
- FBAR applies when foreign accounts exceed $10,000 in aggregate; Form 8938 has higher thresholds for foreign residents.
- The U.S.-Australia treaty and its saving clause don't clearly settle U.S. treatment of Australian superannuation. Don't assume it matches a U.S. plan.
Getting support
If you have U.S. filing obligations, foreign income, or business retirement plans, VJM Global's U.S.-compliant tax and accounting professionals can help with record review and compliance planning. Outcomes depend on your specific facts.
Sources and review
Check the latest IRS COLA notice, IRS retirement-plan pages, Form 1040 and Form 8606 instructions, and your plan documents. Rules can change after publication.
Frequently Asked Questions
What are the 2026 federal tax brackets?
Rates run from 10% to 37%. For single filers, 10% applies to income up to $12,400 and 37% above $640,600 (Revenue Procedure 2025-32). Brackets apply to taxable income and don't govern 2027 IRA limits.
What is the IRS salary cap for 2026?
It depends on the cap. The Social Security wage base is $184,500, the plan compensation limit is $360,000, and the 401(k) deferral limit is $24,500. None are IRA income phaseouts.
What is the standard deduction for seniors in 2026?
Standard deductions are $32,200 joint, $24,150 head of household and $16,100 single. Age 65+ or blind adds $1,650 (married) or $2,050 (unmarried), and a separate $6,000 senior deduction may also apply. None of this is an IRA phaseout.
What is the $600 reporting rule for tax reporting?
The $600 Form 1099-K threshold was replaced by gross payments over $20,000 and more than 200 transactions. Forms 1099-NEC and 1099-MISC rise to $2,000 for payments after 2025. Reporting thresholds don't decide IRA eligibility.
What are the IRS income limits for traditional and Roth IRA contributions in 2027?
The 2027 figures aren't confirmed in the IRS COLA table yet. Check the IRS notice for Roth and deduction phaseouts by filing status and coverage, and remember one combined contribution limit.
Can I deduct a traditional IRA contribution if my income is above the 2027 phaseout range?
Not usually, but you may still contribute. Track the nondeductible amount as basis on Form 8606 so you aren't taxed twice later.
