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457 Plan Contribution Effects on Your Paycheck Calculator

An employer-sponsored retirement savings account could be one of your best tools for creating a secure retirement. Pre-tax contributions are tax-deferred, you only pay taxes on contributions and earnings when the money is withdrawn. After-tax contributions are after-tax and are tax free when the money is withdrawn. Use this calculator to see how increasing your contributions to a 457 plan can affect your paycheck as well as your retirement savings. Withholding schedules, rules and rates are from "IRS Publication 15" and "IRS Publication 15T". This calculator uses the redesigned W-4 created to comply with the elimination of exemptions in the Tax Cuts and Jobs Act (TCJA).

457 Plan Contribution Effects on Your Paycheck Calculator Definitions

Retirement savings current
This is the percentage of your annual salary you contribute to your retirement plan each year. While your plan may not have a deferral percentage limit, this calculator limits deferrals to 75% to account for FICA (Social Security and Medicare) taxes.
Retirement savings new
This is the new percentage of your annual salary you would like to compare your current contributions to. While your plan may not have a deferral percentage limit, this calculator limits deferrals to 75% to account for FICA (Social Security and Medicare) taxes.
Gross pay
This is your gross pay, before any deductions, for the pay period. Please enter a dollar amount from $1 to $1,000,000.
Pay period
This is how often you are paid. Your selections are: Weekly (52 paychecks per year), Every other week (26 paychecks per year), Twice a month (24 paychecks per year), and Monthly (12 paychecks per year).
Filing status
This is your income tax filing status. The choices are "Single", "Married" and "Head of Household." Choose "Married" if you are married, "Head of household" if you are unmarried with dependent children, "Single" if you file your taxes as a single person or if you are married but file separately.
State and local taxes
This is the percentage that will be deducted for state and local taxes. **TAX_STATE_ALLOWANCE_TJA_DEFINITION** Please note, this calculator can only estimate your state and local tax withholding. The tax rate displayed is an assumption that may or may not be relevant to your situation.
Pre-tax deductions
Enter any payroll deductions made by your employer that are made with pre-tax income. This might include your health insurance, life insurance among other pre-tax deductions.
Post-tax deductions
Enter any payroll deductions made by your employer that are made with after-tax income.
Post-tax reimbursements
Enter any reimbursements made by your employer that are after-tax.
Expected annual salary change
The expected annual increase in your salary. We use this to project future contributions and matches to your savings plan.
Year to date income
Income from your employer that you have been paid during the current year, before the current payroll period. We use this amount to determine if you are still required to pay FICA OASDI for the current payroll period.
Social Security tax
**TAX_SOCIAL_SECURITY_MAX** Please note that if you have other wages or employers this calculator does not make any assumptions as to the total Social Security tax withheld for the current year other than the actual inputs for this calculator. This tax is also referred to as the Federal Insurance Contributions Act Old Age Survivors and Disability Insurance (FICA OASDI).
Medicare tax
Medicare tax is calculated as your gross earnings times 1.45%. Unlike the Social Security tax, there is no annual limit to the Medicare tax. Starting in 2013, an additional Medicare tax of 0.9% is withheld on all gross earnings paid in excess of $200,000 in a calendar year. If you enter an amount for the year-to-date gross earnings, this additional Medicare tax will be calculated based on the current period's gross earnings that exceed the annual $200,000 threshold. If no year-to-date amount is entered, any additional Medicare tax withholding will be calculated only for any gross earnings in excess of $200,000 for the current payroll period. If year-to-date wages prior to the current payroll period have exceeded $200,000, the year-to-date wages must be entered to calculate an accurate additional Medicare tax.
Federal tax withholding calculations
**TAX_CALCULATION_TJA_DEFINITION**
Plan type
Choose the type of 457 plan contributions. The choices are pre-tax and after-tax.
Current balance
The current balance of your retirement plan.
Current age
Your current age.
Age at retirement
Age you wish to retire. This calculator assumes that the year you retire, you do not make any contributions. For example, if you retire at age 65, your last contribution occurs when you are actually 64.
Annual contribution limits
Your total contribution for one year is based on your annual salary times the percent you contribute. However, your annual contribution is also subject to certain maximum total contributions per year. **PLAN_CONTRIBUTION_MAX** It is also important to note that employer contributions do not affect an employee's maximum annual contribution limit. The catch-up amount is indexed for inflation in increments of $500.

It is important to note that some employees are subject to another form of contribution limitations. Employees classified as 'Highly Compensated' may be subject to contribution limits based on their employer's overall participation. **PLAN_HIGHLY_COMPENSATED**