SIMPLE IRA Contribution Calculator: Compare 2026 Savings Scenarios
Use this guide to understand the assumptions, inputs, results, and next steps behind the calculator.
Created by Luis Gonzalez · Last updated August 1, 2026
A SIMPLE IRA contribution is money an employee elects to defer from pay into a workplace retirement account. This calculator compares your current and proposed contribution rates, estimates the change in take-home pay and tax savings, and includes an estimated employer contribution.
With the default inputs—$75,000 salary, a 3% current deferral, an 8% proposed deferral, a 22% federal tax bracket, a 5% state tax rate, and 26 pay periods—the calculator estimates a $2,250 current contribution and a $6,000 proposed contribution. The increase is $3,750 a year. It estimates a $105 reduction per paycheck and $1,013 in annual tax savings. The employer contribution is $2,250 in both scenarios under the selected match setting.
Use the result as a comparison, not a personalized tax calculation. The tax estimate combines the entered federal and state rates and does not account for deductions, payroll taxes, tax credits, or every tax rule. To examine account growth and other plan details, use the SIMPLE IRA Calculator alongside this contribution comparison.
Enter a current rate and a proposed rate
Enter your annual salary, current deferral percentage, and the percentage you are considering. The calculator converts each percentage into an annual employee contribution, subject to its 2026 employee limit. Enter your federal bracket, state tax rate, and number of pay periods to estimate tax savings and the paycheck impact.
The employer-match selection changes the employer contribution assumption. Under the matching option, the model estimates a match equal to the employee contribution up to 3% of salary. Under the 2% option, it estimates an employer contribution equal to 2% of salary. Check your plan documents: employers generally choose their SIMPLE IRA contribution method, and eligibility rules apply.
The catch-up field increases the modeled employee limit when selected. It is intended for eligible participants; verify the amount and eligibility for your age and tax year before relying on it. For match details, compare the result with the SIMPLE IRA employer match calculator. If you are comparing other workplace plans, the 403(b) contribution calculator and Roth 401(k) contribution calculator model different account types.
What the default comparison says
The current employee contribution is $75,000 × 3% = $2,250. The proposed contribution is $75,000 × 8% = $6,000. The increase is $6,000 − $2,250 = $3,750 per year.
For the selected match setting, the employer match is capped at 3% of salary: $75,000 × 3% = $2,250. Both employee rates meet or exceed that cap, so the modeled employer contribution stays at $2,250. Total annual contributions therefore rise from $2,250 + $2,250 = $4,500 to $6,000 + $2,250 = $8,250.
The combined tax rate is 22% + 5% = 27%. The estimated annual tax savings on the extra contribution is $3,750 × 27% = $1,012.50, rounded to $1,013. Estimated net pay per paycheck changes from $2,043 to $1,937, so the modeled reduction is $2,043 − $1,937 = $106 before display rounding effects; the calculator’s displayed paycheck reduction is $105. The calculator estimates each paycheck separately and rounds displayed results, so small differences can occur when comparing rounded values.
The calculator also reports an employee limit of $17,000 for 2026 and 35.29% utilization under the proposed contribution: $6,000 ÷ $17,000 × 100 = 35.29%. The 2026 SIMPLE IRA employee contribution limit is $17,000; the catch-up for eligible participants age 50 or older is $4,000 (IR-2025-111).
2026 contribution limits and employer contributions
The contribution limit applies to employee salary deferrals across applicable SIMPLE IRA arrangements, not separately to each job or account. The calculator caps employee contributions at its configured limit, but it does not determine whether you meet the plan’s eligibility rules or whether a contribution is permitted under multiple-employer arrangements.
SIMPLE IRA employer contributions are not the same as employee deferrals. The calculator models either an employer match up to 3% of salary or a 2% employer contribution. Actual plan requirements can include notice, election, and employee eligibility rules. The Department of Labor explains employer responsibilities for retirement plans at dol.gov/agencies/ebsa.
Do not assume that raising your contribution always raises the employer contribution. In the default example, the current 3% deferral already reaches the 3%-of-pay matching cap. Moving from 3% to 8% raises employee savings but does not increase the estimated match. If your employer uses the 2% contribution option, the model likewise holds the employer contribution at 2% of salary as your deferral changes.
A SIMPLE IRA is generally a tax-deferred account: traditional salary deferrals are usually excluded from federal income-taxable wages, while distributions are generally taxable. This calculator’s tax-savings estimate is a simplified marginal-rate calculation, not a promise that your tax bill will fall by exactly that amount. For Roth-versus-traditional tax treatment, see Roth IRA vs. traditional IRA: which saves more taxes?.
Compare different contribution choices
These comparisons show how the calculator’s main inputs affect the result. They are separate examples, not the default result. Paycheck impact and tax savings depend on the entered tax rates and pay periods; actual plan rules may change employer contributions.
| Scenario | Salary | Employee deferral | Employee contribution | Employer assumption | What changes |
|---|---|---|---|---|---|
| Lower contribution | $60,000 | 2% | $1,200 | 3% match, limited by employee deferral | Smaller payroll deduction; match is based on the lower deferral |
| Match threshold | $80,000 | 3% | $2,400 | 3% match cap | Employee contribution reaches the modeled match cap |
| Higher saving rate | $90,000 | 10% | $9,000 | 2% employer contribution | Employee savings rise; modeled employer amount is $1,800 |
| Catch-up illustration | $100,000 | 18% | $18,000 before cap | Catch-up setting enabled | Contribution is capped at the applicable modeled employee limit |
The table uses the calculator’s simplified assumptions. In particular, the catch-up setting does not verify your age or plan eligibility, and the exact limit should be checked for the relevant year. To compare retirement savings beyond this one account, use the SEP IRA contribution calculator or pension contribution calculator.
The calculator’s contribution and paycheck formulas
The calculator first turns the deferral rate into an annual amount, then caps that amount at the employee limit.
Annual employee contribution = smaller of (annual salary × deferral rate) or employee limit
For the current default rate: $75,000 × 0.03 = $2,250. For the proposed rate: $75,000 × 0.08 = $6,000. Neither exceeds the $17,000 modeled limit.
The matching option estimates the employer contribution as the smaller of the employee contribution or 3% of salary. The alternative employer contribution is 2% of salary.
Employer match = smaller of (employee contribution) or (annual salary × 3%)
Alternative employer contribution = annual salary × 2%
For the proposed default contribution, the match is the smaller of $6,000 or $2,250, which equals $2,250.
The calculator combines the entered federal and state rates for its simplified tax estimate.
Estimated annual tax savings = (proposed contribution − current contribution) × (federal rate + state rate)
Substituting the defaults gives ($6,000 − $2,250) × (22% + 5%) = $3,750 × 27% = $1,012.50, rounded to $1,013.
Its paycheck estimate divides annual pay and contributions by the number of pay periods, then applies the combined tax rate to the remaining taxable pay. Because it uses a simplified combined rate, the estimated paycheck change is not equivalent to a payroll-provider calculation.
FAQs about SIMPLE IRA contribution choices
Does contributing 8% mean my take-home pay falls by 8%?
No. The 8% is the gross-pay deferral rate, not the estimated reduction in take-home pay. Under the default inputs, the calculator reports a $105 paycheck reduction because it estimates the tax effect of the larger pre-tax contribution.
Should I raise my contribution or keep more money in my paycheck?
That is a tradeoff between current cash flow and retirement saving. Try several rates and compare the per-paycheck reduction with the annual contribution increase. First check whether your current rate already receives the full employer contribution available under your plan.
Is the calculator’s tax savings a guaranteed reduction in my tax bill?
No. It estimates savings by multiplying the contribution increase by your entered federal and state rates. Your actual tax result depends on taxable income, deductions, other income, and applicable state rules. The IRS explains retirement-plan tax rules at irs.gov/retirement-plans.
Can I contribute more than $17,000 in 2026?
The calculator uses a $17,000 employee limit and can add a $4,000 catch-up when the eligibility input is selected. Do not treat the setting as confirmation that you qualify. Check the IRS limit and your employer plan’s rules before setting payroll contributions.
Does an employer match count against the employee limit?
The calculator applies the employee limit to the employee deferral, then adds the modeled employer contribution separately. Employer contributions have their own plan and legal limits. The SIMPLE IRA Calculator can help you explore the account separately from the paycheck comparison.
Is a SIMPLE IRA the same as a SEP IRA?
No. Both are employer-related IRA arrangements, but they have different contribution rules and plan structures. Compare them using the SEP IRA contribution calculator and review your employer’s plan documents before choosing a contribution amount.
Next steps: test rates against your budget
Change the proposed rate in small increments—for example, from 3% to 4%, then 5%—and compare the change in annual savings with the paycheck reduction. If the full employer match requires a particular contribution, test that threshold first. Then review whether the remaining paycheck supports bills, emergency savings, and other goals.
For a broader view of how contributions fit into retirement planning, use the Simple Retirement Calculator and compare account types with the IRA calculator. The calculator is a planning estimate; confirm plan terms, contribution eligibility, and tax treatment before changing payroll elections.