2026 SEP IRA contribution limits and calculator for self-employed business owners
Calculate a planning estimate, see why a 25% plan rate becomes 20% for many Schedule C owners, and identify the entity, employee and deadline rules that can change the result.
Based on current IRS 2026 SEP limits
The answer in 30 seconds
For 2026, most Schedule C owners using the maximum 25% plan rate calculate their contribution as 20% of adjusted net earnings, capped at $72,000. The published ceiling is not an automatic contribution amount.
2026 SEP IRA key facts
- Annual contribution limit
- $72,000
- Compensation considered
- $360,000
- Common reduced owner rate
- 20%
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- Entity and compensation checkpoint
- Employee-cost review
- Deadline and records checklist
- Printable planning worksheet
Calculate your 2026 SEP IRA contribution
Start with the numbers that drive a straightforward owner estimate.
- Uses your selected contribution rate and estimated adjusted net earnings.
- Capped by the applicable 2026 compensation and annual limits.
The 2026 limits
The contribution is the lesser applicable limit—not automatically the largest number shown.
- Annual maximum
- $72,000
- Compensation cap
- $360,000
- Employee plan rate
- Up to 25%
- Maximum reduced owner rate
- 20%
Is a SEP IRA the right fit for your business?
A SEP can be attractive when simplicity and flexible employer contributions matter. It deserves a closer comparison when employees, lower owner income, catch-up contributions, Roth features, or multiple businesses enter the picture.
Do you have eligible employees?
Yes: model the total contribution for every participant before choosing a percentage.
No: continue to the contribution and plan-feature comparison.
Do you want the largest possible contribution at moderate income?
Yes: compare a solo 401(k), where available, because employee deferrals may change the result.
No: a SEP may remain a straightforward option.
Do you value flexible annual funding?
Yes: a discretionary employer contribution can fit uneven business income.
No: compare plans based on the features you actually expect to use.
Are related businesses or other plans involved?
Yes: pause for a controlled-group and annual-additions review.
No: verify the entity, earnings base, plan document, and deadline.
Why 25% becomes 20%
A self-employed owner cannot simply multiply Schedule C profit by 25%. The contribution itself reduces the compensation used to calculate that contribution, so the IRS uses a reduced rate: plan rate ÷ (1 + plan rate). At the maximum rate, 25% ÷ 125% equals 20%.
Example 1: $100,000 of Schedule C profit
- 1Schedule C net profitBefore the owner's own SEP deduction$100,000
- 2Less deductible part of estimated SE taxThis amount can change with W-2 wages or special Schedule SE facts− $7,065
- 3Adjusted net earnings$100,000 − $7,065$92,935
- 4Apply the 20% reduced owner rate$92,935 × 20%$18,587
Example 2: the annual ceiling binds
With $400,000 of adjusted net earnings and the maximum plan rate, the reduced-rate calculation produces $80,000. The 2026 annual limit reduces the permitted contribution to $72,000. Reaching the ceiling still depends on plan terms, entity type, employees and other plans.
The same plan can produce very different decisions.
Solo consultant with uneven income
No employees, strong current-year profit, and a need to preserve cash flexibility.
- Estimate adjusted self-employment earnings.
- Compare the desired contribution with available cash.
- Confirm the return extension before relying on an extended funding date.
S corporation owner
Owner compensation is paid through payroll, with additional shareholder distributions.
- Base the SEP analysis on qualifying W-2 compensation.
- Do not treat distributions as retirement-plan compensation.
- Coordinate payroll, reasonable compensation, and retirement funding.
Owner with a small team
The owner wants a meaningful contribution and has two employees who may be eligible.
- Apply the plan formula consistently to eligible participants.
- Model the employee contribution before selecting the owner rate.
- Confirm service, age, and compensation provisions in the plan document.
Contribution limit is not the same as the deduction
A contribution is the amount deposited. The contribution limit is the maximum permitted under the plan and tax law. The deduction is the amount allowed on the applicable return and can change because of earnings, timing, other plans, carryovers and whether the contribution is for the owner or employees.
| Term | What it answers | Important context | Where to verify |
|---|---|---|---|
| Contribution | How much was deposited? | Must follow the plan document and participant limits. | Custodian and plan records |
| Contribution limit | What is the maximum permitted? | $72,000 is only the outer 2026 ceiling. | IRS limits |
| Tax deduction | What can be deducted for this return year? | The owner's contribution is generally reported on Schedule 1, not Schedule C. | IRS reporting guidance |
Use the estimate as a planning checkpoint.
The calculator handles a straightforward Schedule C case. A contribution decision should also reconcile the business entity, employee eligibility, extension status, other employer plans and amounts already deposited.
Review my contribution plan →The entity changes the calculation
| Business type | Compensation base | Use this calculator? | Main risk | Next step |
|---|---|---|---|---|
| Sole proprietor or disregarded single-member LLC | Adjusted net earnings from Schedule C | Yes, for a straightforward case | Special Schedule SE facts | Confirm inputs and plan terms |
| Partnership or LLC taxed as a partnership | Partner earned income from the sponsoring trade or business | Professional review | K-1 and partnership adjustments | Review partnership guidance |
| S corporation | Qualifying Form W-2 compensation | No | Shareholder distributions do not count | Review S corporation rules |
| C corporation | Eligible employee compensation | No | The corporation makes the employer contribution | Calculate under employee rules |
Employees can change the total business cost
Most SEPs, including the IRS model Form 5305-SEP, require contributions to bear a uniform relationship to compensation. If the business contributes 10% for the owner, it generally contributes the same percentage for every eligible participant.
The 2026 minimum-compensation threshold is $800, but the governing plan document controls how permitted age, service and compensation requirements apply. An otherwise eligible employee who terminated employment, died or stopped working before the deposit date may still be entitled to a contribution.
A 10% owner decision can reach beyond the owner.
Assume an owner selects a 10% plan contribution and has two eligible employees with $60,000 and $40,000 of compensation. Subject to the plan document and applicable limits, the employees' contributions alone would total $10,000.
- Employee A
- $60,000 × 10% = $6,000
- Employee B
- $40,000 × 10% = $4,000
- Employee funding
- $10,000
Setup and contribution deadlines
A SEP can generally be established and funded by the due date of the employer's federal income-tax return, including extensions. The actual date depends on the business return.
Before money moves, verify the whole plan.
Entity classification, employees, another retirement plan or a missed extension can change a seemingly simple result.
A workplace 401(k) does not automatically block a SEP
Participation in an unrelated employer's retirement plan does not by itself prevent a SEP for separate self-employment income. An ordinary SEP contribution is an employer contribution, not an employee elective deferral.
When the same employer—or employers treated as related—maintains more than one defined-contribution plan, annual additions may need to be combined. Controlled-group, related-employer and multiple-business cases need individualized review.
SEP IRA vs. solo 401(k)
IRS one-participant 401(k) guidanceA solo 401(k) can combine employee elective deferrals with employer contributions. That can allow a larger contribution at lower income levels, but plan administration, age, other deferrals and employee status matter.
| Feature | SEP IRA | Solo 401(k) |
|---|---|---|
| Employer contribution | Yes | Yes |
| Employee elective deferral | No, for an ordinary SEP | Yes |
| Age-based catch-up | No | May be available |
| Eligible common-law employees | May have to be included | A one-participant plan generally cannot cover them |
| Administration | Relatively simple | More administration and possible filing requirements |
Seven mistakes to catch before funding.
- 01Multiplying Schedule C profit by 25%
Self-employed owners generally need the reduced-rate calculation and the self-employment-tax adjustment.
- 02Using S corporation distributions
Shareholder distributions are not the qualifying compensation base for the SEP contribution.
- 03Ignoring eligible employees
An owner contribution can create a contribution obligation for other eligible participants.
- 04Assuming the headline limit is automatic
The annual dollar limit is an outer ceiling, not a guaranteed contribution amount.
- 05Relying on an extension that was not filed
Verify the return due date and extension status before setting the funding timeline.
- 06Overlooking another employer plan
Related-employer and annual-additions rules can connect plans that appear separate.
- 07Funding before reconciling the return
Final earnings, payroll, employee eligibility, and prior deposits should agree with the contribution decision.
Records to gather before contributing
- SEP adoption agreement and current plan document
- Confirmation that each required SEP IRA account is open
- Schedule C net profit or applicable business-return information
- Schedule SE and the deductible part of self-employment tax
- Form W-2 Social Security wages from other employment
- Eligible employee compensation and service history
- SEP contributions already made for the year
- Other retirement plans maintained by this or a related employer
- Federal return due date and extension confirmation
- Prior excess or nondeductible contribution carryovers
SEP IRA pre-contribution worksheet
Complete this checkpoint before authorizing a deposit. A blank or uncertain answer is a signal to pause and verify.
Frequently asked questions
Can I automatically contribute $72,000 in 2026?
No. $72,000 is the outer annual ceiling. The permitted amount also depends on compensation, entity type, plan rate, adjusted self-employment earnings, employees, other plans and the plan document. IRS SEP limits
Why does a 25% SEP rate become 20%?
The owner contribution reduces the compensation used to calculate that same contribution. Dividing the 25% plan rate by 125% produces the 20% reduced rate. IRS self-employed calculation
Does my own SEP contribution reduce self-employment tax?
The owner contribution is generally deducted on Schedule 1 rather than Schedule C, so it generally does not reduce Schedule C profit or self-employment tax. IRS reporting guidance
Can an S corporation owner use shareholder distributions?
No. The contribution is based on qualifying compensation. S corporation shareholder distributions are not earned income for this purpose. IRS S corporation FAQ
Do I have to contribute every year?
No. A SEP contribution can generally be discretionary, including zero. In a year when the employer contributes, it must follow the plan allocation formula for every eligible participant. IRS SEP FAQs
Can I make a catch-up contribution if I am age 50 or older?
Not to an ordinary SEP. SEP plans do not permit age-based catch-up contributions. Separate traditional or Roth IRA contribution rules may apply. IRS SEP limits
What if I contributed too much?
Pause before making another deposit or withdrawal. Excess or nondeductible contributions can create tax, reporting and plan-correction issues, and the correction depends on the contribution type, amount and timing. IRS SEP Fix-It Guide
Sources and calculation method
- Tax year
- 2026
- Calculator version
- 2.0
- Primary sources
- IRS Publication 560IRS SEP limits
- Rounding policy
- Round displayed dollars; retain unrounded calculations.
The current Publication 560 includes the 2026 $72,000 contribution limit and $360,000 compensation limit. Formula inputs and form-line references must be revalidated when final 2026 Publication 560, Schedule SE and Schedule 1 instructions are available. This educational planning tool is not tax, legal or investment advice.
Turn the estimate into a coordinated contribution plan.
A personalized consultation can confirm the entity, employee, plan, deadline, and contribution details that apply to your situation.