How much you can withdraw from your 401(k) depends on four things: your vested balance, your age, your plan’s rules, and the reason you’re taking the money. After age 59½, most plans let you pull out anything up to 100% of your vested balance for any reason. Before 59½, you’re limited to a hardship distribution (capped at your documented need), a loan (capped by federal law at $50,000 or half your vested balance), or one of a handful of penalty-free exceptions with their own dollar limits. Every dollar you take also loses a slice to federal income tax, often a 10% early withdrawal penalty, and in most states an additional state income tax.
Your Vested Balance Is the Ceiling
No withdrawal or loan can exceed your vested balance, so that number is the real starting point. Every dollar you contributed from your own paycheck is 100% yours from day one. Employer matching contributions vest on a schedule set by your plan, and until they’re vested they’re not part of the balance you can touch.1Office of the Law Revision Counsel. 26 USC 411 – Minimum Vesting Standards
Your most recent plan statement shows your vested balance as a distinct line. That is the maximum base for any distribution or loan calculation described below.
Full Access After Age 59½
At 59½, the 10% early withdrawal penalty stops applying, and most plans let you withdraw any amount up to 100% of your vested balance without justifying the reason.2Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions You’ll still owe ordinary federal income tax on every dollar of a traditional 401(k) distribution.
Plan administrators can layer their own rules on top. Some cap the number of distributions per year. Some set minimum withdrawal amounts, often $500 or $1,000 per request. These are administrative limits set by your plan document, not federal ones, and the plan’s summary description spells them out.
Hardship Withdrawals Before 59½
If you’re still working and under 59½, a hardship distribution is one of the few ways to access the money at all. Federal law limits the amount to what you need to cover an immediate and heavy financial need, though the plan can gross the amount up to cover the taxes and penalty the distribution itself will trigger.3Office of the Law Revision Counsel. 26 USC 401 – Qualified Pension, Profit-Sharing, and Stock Bonus Plans You cannot take out more than the documented cost.
The IRS recognizes several safe-harbor categories that automatically qualify:
- Medical expenses for you, your spouse, or your dependents
- Costs of buying a primary residence, but not ongoing mortgage payments
- Post-secondary tuition and related educational fees
- Payments needed to prevent eviction or foreclosure on your primary home
- Funeral expenses for a family member or plan beneficiary
- Certain expenses to repair damage to your primary home
Your plan may add categories beyond this list, so check the plan document.4Internal Revenue Service. Retirement Topics – Hardship Distributions Under SECURE 2.0, administrators can rely on your written self-certification that the expense qualifies, the amount matches the need, and you lack other reasonable means to cover it, unless they have actual knowledge the certification is false.
The catch on hardship withdrawals is that they are permanent. You cannot repay the money or roll it into an IRA. Once the money leaves the account, it’s gone from your retirement savings.5Internal Revenue Service. Retirement Plans FAQs Regarding Hardship Distributions And the 10% early withdrawal penalty still applies on top of income tax unless one of the exceptions below covers the reason for the withdrawal.
How Much You Can Borrow: 401(k) Loans
A loan is the other main way to reach the money before 59½, and it doesn’t permanently shrink your balance as long as you repay on schedule. Federal law caps the maximum at the lesser of $50,000 or 50% of your vested balance. If your vested balance is $120,000, the ceiling is $50,000, because half your balance is higher. For smaller accounts, the law provides a floor of $10,000 even if that exceeds 50% of your vested balance.6Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
The $50,000 cap is reduced by the highest outstanding loan balance you carried from the same plan during the previous 12 months. If you paid off a $30,000 loan six months ago, your maximum new loan is $20,000 until a full year has passed from that peak. The rule blocks the cycle of paying one loan off and immediately taking another for the same amount.
If you leave your job with a loan outstanding, most plans demand full repayment shortly after separation. Any unpaid balance is then treated as a distribution: income tax, plus the 10% penalty if you’re under 59½. You do have until the due date of that year’s tax return (with extensions) to roll the unpaid amount into an IRA or another eligible plan and avoid the tax hit.7Federal Register. Rollover Rules for Qualified Plan Loan Offset Amounts
Penalty-Free Early Withdrawal Categories
Even before 59½, several exceptions let you skip the 10% penalty. They don’t affect the income tax you owe on the withdrawal, only the extra 10%.
Rule of 55
If you separate from your employer during or after the calendar year you turn 55, you can withdraw from that employer’s 401(k) without the 10% penalty. Public safety employees of state or local governments qualify starting at age 50.2Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions The exception only applies to the plan held by the employer you left. Balances you rolled to an IRA don’t qualify.
Substantially Equal Periodic Payments
Under IRC Section 72(t)(2)(A)(iv), you can commit to a series of substantially equal periodic payments, known as SEPP, and avoid the penalty. You must continue the payments for at least five years or until you reach 59½, whichever is later. Stop early or change the amount and the IRS retroactively applies the 10% penalty to every payment you took, plus interest.8Internal Revenue Service. Substantially Equal Periodic Payments The IRS allows three calculation methods (required minimum distribution, fixed amortization, and fixed annuitization), each fixing an annual amount based on your account balance and life expectancy. For a 401(k), you must have separated from service before starting SEPP payments.
SECURE 2.0 Exceptions
SECURE 2.0 added several penalty-free categories, each with its own dollar cap. Your plan must have adopted the provision before you can use it.
- Emergency personal expenses: up to $1,000 per year, with a three-year wait before another unless you repay the first.2Internal Revenue Service. Retirement Topics – Exceptions to Tax on Early Distributions
- Domestic abuse survivors: up to $10,500 in 2026, adjusted annually for inflation, on self-certification of abuse within the past year.9Internal Revenue Service. 2026 Amounts Relating to Retirement Plans and IRAs, as Adjusted for Changes in Cost-of-Living (Notice 2025-67)
- Terminal illness: any amount, with physician certification.
- Federally declared disasters: up to $22,000 per disaster, repayable within three years to reclaim the taxes paid.10Internal Revenue Service. Disaster Relief Frequent Asked Questions – Retirement Plans and IRAs Under the SECURE 2.0 Act of 2022
Roth 401(k) Withdrawals Work Differently
Roth 401(k) contributions were already taxed on the way in, which changes what you keep on the way out. A qualified distribution is completely tax-free, including all earnings. To qualify, you must be at least 59½ and have held the Roth 401(k) for at least five years, measured from January 1 of the year of your first Roth contribution to that plan.
A non-qualified distribution is split proportionally between contributions and earnings. The contribution portion comes out tax-free. The earnings portion is taxed as ordinary income and gets the 10% penalty if you’re under 59½. On a $50,000 Roth balance made up of $45,000 in contributions and $5,000 in earnings, a $10,000 early withdrawal would treat $9,000 as tax-free contributions and $1,000 as taxable earnings.
Since 2024, Roth 401(k) accounts are no longer subject to lifetime required minimum distributions.
What Taxes and Penalties Take Off the Top
The gross amount you request and the net that lands in your account are almost never the same number.
Most standard 401(k) distributions (lump sums, partial withdrawals after separation, post-59½ payouts) are eligible rollover distributions. When paid directly to you, the plan must withhold 20% for federal income tax, and this withholding cannot be waived.11Internal Revenue Service. 401k Resource Guide Plan Participants General Distribution Rules On a $20,000 withdrawal, $4,000 is sent to the IRS and you receive $16,000. That 20% is a prepayment toward your tax bill for the year, not the final tax; you’ll square up when you file. A direct rollover, where the plan sends the money straight to another plan or IRA, avoids the 20% withholding entirely.12Internal Revenue Service. Rollovers of Retirement Plan and IRA Distributions
Hardship withdrawals cannot be rolled over, so the mandatory 20% doesn’t apply. Default federal withholding on a hardship is 10%, and you can elect to reduce or eliminate it. You still owe income tax on the full amount at filing.5Internal Revenue Service. Retirement Plans FAQs Regarding Hardship Distributions
The 10% early withdrawal penalty applies to any taxable distribution taken before 59½ that doesn’t fit an exception.13Office of the Law Revision Counsel. 26 USC 72 – Annuities; Certain Proceeds of Endowment and Life Insurance Contracts It’s calculated on the taxable portion and reported on your annual return, separate from withholding. Most states also tax the distribution as ordinary income, at rates from 0% to above 10%. Between federal tax, state tax, and the penalty, an early withdrawal can lose 30% to 40% of its face value before the money reaches you.
Required Minimum Distributions Set the Floor
Eventually, the rules flip and require you to take money out. Starting at age 73, you must begin taking required minimum distributions from your traditional 401(k) each year.14Internal Revenue Service. Retirement Plan and IRA Required Minimum Distributions FAQs The annual amount is your account balance divided by a life expectancy factor from the IRS Uniform Lifetime Table.
If you’re still working at 73 and don’t own 5% or more of the company, you can delay RMDs from your current employer’s plan until the year you actually retire. Old 401(k) accounts at former employers, and traditional IRAs, don’t get that exception. Missing an RMD triggers a 25% excise tax on the amount you should have withdrawn, dropping to 10% if you correct the shortfall within two years.15Internal Revenue Service. Retirement Topics – Required Minimum Distributions (RMDs) Roth 401(k) balances are exempt from lifetime RMDs entirely.