IRA Contribution & Backdoor Roth Calculator

See how much you can put into a traditional or Roth IRA in 2026 — and whether a backdoor Roth makes sense when MAGI is too high for a direct Roth.

By The PiggyMath Editorial Desk Last updated ✓ Independently verified against published IRS figures

How this is calculated

2026 IRA limit: $7,500 ($8,600 age 50+). Roth MAGI phaseout: $153k–$168k single, $242k–$252k MFJ. If covered by a workplace plan, traditional deduction phases out at $81k–$91k single / $129k–$149k MFJ. A backdoor Roth is a nondeductible traditional contribution followed by a Roth conversion — the pro-rata rule taxes conversions when other pre-tax IRA balances exist.

Your situation

All pre-tax IRA dollars count for the pro-rata rule on a conversion.
2026 IRA contribution room
Direct Roth allowed
Deductible traditional

Backdoor Roth check

When the backdoor helps

If MAGI blocks a direct Roth, you can often still contribute nondeductible dollars to a traditional IRA and convert. That works cleanly when you have no other pre-tax IRA balances. Freelancers with SEP or Solo 401(k) balances should read the pro-rata warning carefully — a SEP IRA counts; many Solo 401(k) balances do not. Price the conversion itself with the Roth conversion tax calculator.

IRA vs Solo 401(k)

The IRA ceiling is far below what a profitable sole proprietor can put into a Solo 401(k). Use IRAs for Roth access and spillover savings; use the employer plan for the big annual contribution.

Frequently asked questions

What is the 2026 IRA contribution limit?
$7,500 under age 50, or $8,600 with the $1,100 catch-up at age 50+.
What are the 2026 Roth income limits?
Phaseout $153,000–$168,000 single and $242,000–$252,000 married filing jointly.
What is the pro-rata rule?
When you convert, the IRS looks at all your traditional/SEP/SIMPLE IRAs. Pre-tax dollars are taxed in proportion even if you only convert recent nondeductible contributions.

Sources

Every formula on this page is checked against an independent implementation before publication. How we check our math →