401K Calculator
Our 401(k) calculator projects your retirement account balance and the likely payouts, using inputs such as earnings, contribution rate, age, expected wage growth, and investment returns. The tool is designed primarily for users residing in the United States.
401(k) Early Withdrawal Costs Calculator
Taking money out of a 401(k) before retirement triggers a penalty. This feature computes the net amount you would obtain after the early‑withdrawal charge.
Maximize Employer 401(k) Match Calculator
If your contribution rate is set too low or too high, you may miss out on the full employer match. A rate that's too high could hit the IRS cap before year‑end, causing the employer to stop matching for the remainder of the year. This tool shows the optimal contribution range to maximize matching dollars.
401(k) Information
A 401(k) is a U.S. retirement savings program that offers tax advantages, typically provided through an employer. Named after section 401(k) of the Internal Revenue Code, it originated with the 1978 Revenue Act. For those who cannot join an employer‑sponsored plan, self‑directed 401(k)s are available. Contributions are taken from payroll before taxes, and the account’s dividends, interest, and capital gains grow tax‑deferred, meaning the money compounds without immediate tax until it’s withdrawn, usually in retirement. Participants—often called plan members—may allocate a portion of their pre‑tax salary to the plan, subject to IRS limits that can be adjusted each year for inflation. Employers may also impose their own caps on contribution percentages and frequently offer a matching contribution up to a certain share of the employee’s pay. The deferral limit rose to $24,500 for 2026 (up from $23,500 in 2025).
General Pros and Cons of a 401(k)
Pros
- Tax‑deferred growth – Like traditional IRAs or deferred annuities, earnings inside a 401(k) aren’t taxed as they accrue, allowing interest, dividends and capital gains to compound without immediate tax drag. This tax advantage makes 401(k)s more efficient than saving in cash, taxable brokerage accounts, or real estate.
- Employer matching – Many 401(k) plans include a matching contribution from the company. A poll found that 43 % of workers would rather accept a lower salary in exchange for a higher employer match. Professionals describe these matches as “free money” or a guaranteed raise that shouldn’t be left on the table. Matching formulas vary: some employers match a percentage of salary up to a cap, while others match a percentage of the employee’s contribution up to a limit.
- Tax‑deductible – Contributions to traditional IRAs may or may not be deductible, depending on income level and other retirement plans. In contrast, employee and employer contributions to a 401(k) are always deducted from taxable wages, reducing the amount of income subject to tax.
- Generous contribution caps—401(k) plans permit substantially larger yearly deposits. In 2026 participants under 50 may contribute up to $24,500, those 50 and older up to $32,500, and individuals 60–63 can reach $35,750. By comparison, IRA contributions are capped at $7,500 for younger savers and $8,600 for those 50 plus.
- Bankruptcy shield—assets held in a 401(k) are typically insulated from creditors, which is why tapping these savings to dodge foreclosure, settle debts, or fund a startup is discouraged.
Cons
- Few investment options–Generally speaking, 401(k)s have few investment options; because they normally originate from employers, they are limited to what is offered through employers' 401(k) plans, as compared to a typical, taxable brokerage account.
- Elevated expense ratios—401(k) accounts often carry steeper fees than many alternative retirement vehicles, frequently expressed as a share of assets, largely because of administrative overhead. Participants can only mitigate costs by selecting inexpensive index funds or ETFs.
- Illiquid– 401(k) funds can only be withdrawn without penalty in rare cases before 59 ½. This includes all contributions and any earnings over time.
- Vesting schedules—Many employers impose a timeline before their contributions become fully owned by the employee. For example, leaving a company while only 50 % vested means the former worker can retain just half of the employer‑funded balance.
- Eligibility delays—Certain firms require new hires to wait before they can enroll in the 401(k) plan, often to curb turnover. Typical waiting times are six months, with a one‑year delay being the maximum allowed under regulations.
A 401(k) is a Defined Contribution Plan
Defined‑contribution schemes such as 401(k)s differ from traditional defined‑benefit pensions, which calculate benefits using preset formulas. Over recent years, 401(k)s have eclipsed DBPs in popularity because they let participants pick from many investment choices and are portable when changing employers. While DBPs once suited long‑term tenure employees, today’s higher job‑hopping rates make the flexibility of DCPs more attractive. When a worker moves to a new company, they can usually either:
- Leave their assets in their previous employer's 401(k) plan
- Rollover their previous 401(k) to their new employer's 401(k) plan
- Rollover their old 401(k) to an Individual Retirement Account (IRA)
- Cash-out their 401(k), but pay taxes and a 10% penalty
Be aware that each employer may set its own guidelines. Typically, a participant may initiate a 401(k) rollover only once per year. For additional details on defined‑benefit or contribution plans, or to run pension calculations, head over to the Pension Calculator.
401(k) Investments
Most 401(k) plans offer a range of investment vehicles—including mutual funds, index funds, and ETFs—that combine stocks, bonds, international equities, government securities, and more. Each option carries its own risk‑return profile. Many plans also provide automated, age‑based portfolios such as target‑date funds. If a plan permits, members can even trade individual stocks, convert the account to a self‑directed 401(k), or roll the balance into an IRA, which generally offers broader investment flexibility.
Employer Match
A 401(k) matching contribution is when an employer adds a percentage of an employee’s own deferral to the account, typically up to a predefined cap of the worker’s salary. No match is provided without employee contributions, and not every plan includes this feature.
As an example, an employer that matches 50% of an employee's contribution for up to 6% of their salary would contribute a maximum of 3% of the employee's salary to the employee's 401(k). Another common matching scheme is a dollar-for-dollar employer match, up to a certain percentage of salary.
Maximizing the employer match can yield a return that dwarfs many other financial moves, such as repaying high‑interest loans. For instance, a full 100 % match on contributions essentially doubles the money put in, and when you factor in tax‑deferred growth, the payoff becomes even more compelling.
Companies provide matching contributions on 401(k) plans chiefly to draw and keep skilled staff while encouraging them to save for retirement. In 2026 an employee’s total deposit cannot be more than either the full amount of their wages or $72,000, whichever is lower. Both the worker’s and the firm’s contributions are placed in the plan before tax and then accrue without current taxation. Taxes are paid only when the money is taken out, which usually benefits retirees because they tend to be in a lower bracket than during their career.
401(k) Vesting Periods
A number of firms impose a vesting schedule on their 401(k) offerings to reward long‑term service. Vesting describes the portion of the employer’s contributions that actually belongs to the participant. When an employee reaches full vesting, they own the entire balance contributed by the company. By contrast, any money the employee puts in is immediately 100 % vested.
Typical vesting follows a four‑year graded schedule. After one year of service an employee owns a quarter of the company’s contributions; after two years that share rises to half, and after three years it reaches three‑quarters, becoming fully vested at the end of year four. Some plans use a “cliff” approach, where nothing is vested until a set point—often after a specified number of years—at which time the employee gains 100 % of the employer’s money. If a participant leaves before the cliff, they forfeit the entire employer contribution. Because vesting rules differ from plan to plan, it’s wise to check with HR or the plan administrator for the exact details.
Early Withdrawal
Both the principal contributions and the earnings they generate in a 401(k) are locked until the participant reaches age 59½. In certain circumstances, outlined below, an early distribution may be allowed, but it will still be subject to ordinary income tax and will not escape the 10 % early‑withdrawal penalty.
401(k) Hardship Withdrawal
A handful of 401(k) plans permit distributions when the participant can demonstrate a genuine financial hardship. To qualify, the account holder must provide convincing documentation, after which the plan administrator decides whether to release the funds. Once a hardship withdrawal is made, the money cannot be returned to the account. Not every employer offers this option, and the specific situations that qualify are listed below.
- Unexpected, unreimbursed medical expenses, or medical expenses that exceed 7.5% of adjusted gross income
- Costs related to the purchase of a principal residence
- Post-secondary tuition and education expenses for the next 12 months
- Expenses to prevent foreclosure on or eviction from the participant's home
- Burial or funeral expenses
- Expenses for the repair of damage to a principal residence
Non-Financial Hardship Withdrawal
Early distributions are not limited to hardship cases; other qualifying reasons also exist. For instance, a participant may be allowed to withdraw early for the following situations:
- passing away resulting in the account being paid to their beneficiary
- having a qualifying disability
- terminating employment when they are at least 55 years old
- withdrawing an amount less than what is allowable as a medical expense deduction
- withdrawing an amount that is related to qualified domestic relations orders, such as a court order to provide money to a divorced spouse, a child, or a dependent
- starting large, equal periodic payments – see IRS rule 72(t) for details
It is important to consider the true costs of taking an early distribution from a 401(k). Taxes, penalties, and the reduction of assets that enjoy compounding, tax-deferred growth within the 401(k) should all be considered.
401(k) Distributions in Retirement
Individuals who are older than 59½ may start taking money from their 401(k), but they can also postpone withdrawals to let the account keep growing. The latest a distribution must begin is age 73 (or age 72 for those who turned 72 before 31 December 2022). Between 59½ and 73, participants have a range of distribution choices:
Option 1: Receive Distributions
Retirees can elect to receive their balance as a single lump‑sum payment, which provides immediate access to all funds but eliminates any future tax‑deferred growth and triggers ordinary income tax on the entire amount in the year of distribution, potentially creating a sizable tax bill.
Alternatively, a participant can spread withdrawals over time via an installment schedule. Payments are usually set for a year at a time, though some plans allow more frequent adjustments. Deciding the appropriate withdrawal amount involves weighing life expectancy, portfolio performance, living‑expense needs, and Social Security benefits. A common guideline is the 4 % rule, which suggests taking out roughly four percent of the account each year. Each payment must also satisfy the required minimum distribution (RMD) threshold, which is calculated from the account balance and the participant’s life‑expectancy factor.
Option 2: Rollover
You can also transfer a 401(k) into an IRA or into a new employer’s plan without triggering taxes. Both Roth and traditional IRAs typically provide a broader range of investment choices. Shifting after‑tax dollars into a Roth IRA can broaden a retirement portfolio. Remember that traditional IRAs still require required minimum distributions once you reach 73.
Option 3: Annuity
Certain 401(k) plans permit conversion of the account into an annuity offered by a private insurer. Like a rollover, the conversion is not a taxable event. The annuity delivers a steady monthly payment for as long as the owner is expected to live. If a joint‑and‑survivor option is chosen, both the primary holder and the named beneficiary receive payments for the duration of their respective lives.
Option 4: Do Nothing
If a retiree wishes to keep the advantage of tax‑deferred growth, they may delay taking money out of the account until the latest permitted age of 73; after that, the law forces annual required withdrawals.
Required Minimum Distributions
Anyone that reaches age 73 (72 if you reach age 72 before Dec. 31, 2022) is required to take distributions from their 401(k). This is called a required minimum distribution (RMD). Traditional, SIMPLE, and SEP IRAs have similar rules imposed by the IRS. The exact date at which RMDs are required is April 1st of the year after a retiree reaches the age of 73. In order to determine the exact amount, retirees can take their 401(k) retirement assets and divide it by a life-expectancy factor, which changes slightly every year.
Failing to take the required minimum distribution incurs a federal penalty equal to 50 % of the shortfall. The RMD amount is calculated using the December‑31 balance from the previous year and the IRS life‑expectancy tables. In some cases, the shortfall can be remedied by withdrawing the missed amount, filing Form 5329, and explaining the reason; the IRS may waive the penalty.
One loophole exists for workers who are still employed at age 73 and whose plan does not mandate RMDs, provided they own less than 5 % of the company. As long as they remain on the payroll, they can skip the required distribution; the moment they leave, the RMD rules kick in.
Self-Directed 401(k)
A self‑directed 401(k), often referred to as a solo 401(k), lets self‑employed individuals set up their own retirement plan. Although it is primarily designed for freelancers, some employers also offer a self‑directed option as an alternative to a standard 401(k), though this is relatively rare.
For the most part, SD 401(k)s share the same characteristics as traditional 401(k)s, including:
- Tax-deferred contributions
- Specific contribution and distribution amounts
- Early withdrawals penalty before 59 ½
- Required minimum distributions after 73 (72 if you reach age 72 before Dec. 31, 2022)
The chief advantage of a solo 401(k) is its flexibility – the plan can usually be used to purchase a wide array of assets, from real‑estate and tax liens to precious metals, foreign currencies, or even private loans. Specific plans may impose limits on certain investment types, but the expanded horizon is a hallmark of the self‑directed 401(k).
Participants in a self‑directed 401(k) may take a loan against their account balance for any purpose – be it credit‑card debt, a mortgage, an investment, or a vacation. Loans are generally capped at the lesser of 50 % of the account value or $50,000.
Roth 401(k)
The Roth 401(k) blends features of a traditional 401(k) with those of a Roth IRA. Contributions are made with after‑tax dollars, so taxes are paid up front and qualified withdrawals in retirement are tax‑free. Contribution limits for 2026 remain $24,500 for participants under 50, $32,500 for those 50 and older, and $35,750 for ages 60‑63.
Unlike a Roth IRA, a Roth 401(k) does not allow penalty‑free withdrawals of contributions until the account has been open for five years. After age 59½, qualified distributions are tax‑free, but the account is still subject to required minimum distributions at age 73. At that point, the Roth 401(k) can be rolled into a Roth IRA to avoid RMDs, preserving the ability to withdraw contributions without tax or penalty—benefits that the Roth 401(k) itself does not provide.
It is possible to contribute to both forms of 401(k) simultaneously, as long as the sum of contributions is still within the annual contribution limits, similar to the treatment of the sums of traditional and Roth IRA annual contributions.