Withholding: What It Means for Employers

What it means in practice

What withholding means. Withholding is collection at the source: the person who pays the money takes part of it out and sends it to the government. For wages, section 3402(a)(1) of the Internal Revenue Code says "every employer making payment of wages shall deduct and withhold upon such wages a tax" figured under IRS tables or procedures, and section 3102(a) makes the employer collect the employee's Social Security and Medicare tax the same way. The amount withheld is credited against the payee's own tax, but the payer must get it to the government. This entry is the umbrella view; each type has its own page.

Three roles a business can play. As an employer it withholds from wages. As a payor it may have to withhold from reportable payments, such as contractor fees, and from pension or annuity payments. As a withholding agent it may have to withhold on payments to foreign persons: Publication 515 (2026) says a withholding agent is any person that "has control, receipt, custody, disposal, or payment" of an amount subject to that withholding.

1. Federal income tax. The largest piece for most employers. The amount is figured from the employee's Form W-4 and the methods in Publication 15-T, with special rules for bonuses and other supplemental pay. The full method is covered under federal income tax withholding, and the flat 22% and 37% supplemental rates under flat tax withholding.

2. FICA, employee share. Publication 15 (2026) lists 6.2% Social Security tax on wages up to $184,500 and 1.45% Medicare tax with no wage base limit. The employer also withholds the 0.9% Additional Medicare Tax once it pays an employee more than $200,000 in a calendar year, with no employer match. The matching employer share is the employer's own tax, not withholding. See FICA and payroll tax rates.

3. State and local income tax. Most states, and some cities and school districts, require their own withholding on their own forms and tables, paid to their own agencies. The rules are summarised under state withholding tax.

4. Backup withholding. The IRS explains that payers of income reported on Forms 1099 and W-2G generally do not withhold, but in some situations "the payer is required to withhold at the current rate of 24 percent." For a business, the usual trigger is a payee, such as an independent contractor, who fails to furnish a correct taxpayer identification number (TIN) (26 U.S.C. 3406). Publication 15 notes that for 2026 the aggregate threshold for section 6041(a) and 6041A(a) payments rises from $600 to $2,000, indexed after that. The TIN process is on the flat tax withholding page; see also Form 1099.

5. Pensions and annuities. An employer that pays retirement benefits directly is a payor under section 3405. Publication 15-A (2026), section 8, says periodic payments are withheld on "in the same manner as withholding from wages" using Form W-4P; nonperiodic payments have a 10% default rate the payee can change on Form W-4R; and eligible rollover distributions not paid as a direct rollover have a 20% default rate that cannot be lowered. Payors "must notify payees each year" of their right to choose not to have tax withheld.

6. Payments to nonresident aliens other than wages. Publication 515 (2026) says a nonresident alien employee's wages generally take graduated withholding, not the 30% rate. Fees paid to a nonresident alien independent contractor for services performed in the United States are different: "you must withhold at the statutory rate of 30%" unless a withholding agreement or final payment exemption applies, and treaties can reduce it. The withholding agent files Form 1042-S for each recipient and an annual Form 1042, not Form 945.

What is not tax withholding. First, employer-paid taxes: the IRS says employers pay FUTA tax "only from your own funds"; see employer payroll taxes. Second, voluntary payroll deductions the employee authorises, such as benefit premiums. Third, garnishments and tax levies, which collect a debt the employee already owes. Federal law defines garnishment as a procedure through which earnings "are required to be withheld for payment of any debt," and measures its limits against disposable earnings, what is left after "amounts required by law to be withheld" (15 U.S.C. 1672). Tax withholding comes first. For an IRS levy against an employee, the IRS says "it is important that you comply with the levy."

Why withheld taxes are "trust fund" taxes. Publication 15 explains that withheld income tax and the employee share of FICA "are part of their wages that you pay to the U.S. Treasury instead of to your employees." Section 7501 says that whenever a person must withhold tax from another and pay it over, the amount withheld "shall be held to be a special fund in trust for the United States." It is never the business's working capital.

The trust fund recovery penalty. Section 6672 imposes a penalty equal to the full tax not collected or not paid over on any person required to collect, account for and pay it who "willfully fails" to do so. The IRS TFRP page says it may apply when the taxes cannot be immediately collected from the business, even one still operating. A responsible person has "the duty to perform and the power to direct" collecting and paying; the IRS lists officers, employees, partners, directors, nonprofit trustees, payroll service providers and PEOs, among others. Willfulness needs no "evil intent or bad motive," and paying other creditors instead is an indication of it, but an employee who only paid bills as directed is not responsible. The penalty is figured on withheld income tax plus the employee share of FICA. The IRS must send written notice at least 60 days before notice and demand (section 6672(b)). A person who pays more than their share may recover the excess from others liable (section 6672(d)), and honorary volunteer board members of tax-exempt organizations are generally excluded (section 6672(e)).

Criminal exposure and separate accounting. Section 7202 makes willful failure to collect or pay over tax a felony, with a fine of up to $10,000, up to 5 years in prison, or both. Publication 15 adds that an employer that does not pay over withheld taxes may be required by written notice to deposit them into a special trust account.

Liability for tax not withheld. Section 3403 says the employer "shall be liable for the payment of the tax required to be deducted and withheld." Publication 15: if you withhold too little, "you're still liable for the full amount." You may make up the shortfall from later pay, but "you're the one who owes the underpayment," and underwithheld income tax and Additional Medicare Tax must be recovered by the end of the calendar year. Under section 3402(d), if the employee later pays the income tax it is not collected again from the employer, but penalties still apply. The IRS applies the same liability rule to Additional Medicare Tax.

Depositing and reporting. Deposit schedules are explained under federal tax deposit. At the umbrella level, what matters is which return each type belongs to. Wage withholding and FICA go on Form 941, Form 943 for farmworkers, or Form 944 for the smallest employers, those with annual liability of $1,000 or less that the IRS has notified to file it. Nonpayroll income tax withholding goes on Form 945: line 1 for pensions, annuities and similar items, line 2 for backup withholding. Publication 15 requires separate deposits for payroll and nonpayroll withholding. Employees receive a Form W-2; other payees a Form 1099, W-2G or 1042-S.

Step by step for an employer. (1) Classify each payment: wages, a reportable payment to a nonemployee, a pension or annuity payment, or a payment to a foreign person. (2) Collect the right certificate: Form W-4 and any state form, Form W-9, Form W-4P or W-4R, or the foreign documentation Publication 515 describes. (3) Withhold the correct amount at each payment. (4) Treat withheld money as held in trust and deposit it on time. (5) Report payroll and nonpayroll withholding on their separate returns. (6) Correct errors promptly.

Example 1 (illustration): one paycheck, two kinds of tax. An employee is paid $3,000 for a 2026 biweekly period and has not reached the Social Security wage base. The employer withholds $186.00 Social Security tax (6.2%), $43.50 Medicare tax (1.45%) and, say, $250.00 federal income tax figured under Publication 15-T. The $479.50 withheld is trust fund tax. The employer also owes its own matching $229.50 of FICA, which is not withholding and is not part of the trust fund amount.

Example 2 (illustration): the TFRP amount. For one quarter, a business withheld $12,000 of income tax and $7,650 of employee FICA from $100,000 of wages, but paid nothing over and cannot pay. Its employer FICA share is another $7,650. A trust fund recovery penalty against a responsible person would be based on $19,650, the withheld income tax plus the employee share; the employer share stays a liability of the business.

Example 3 (illustration): three returns. In 2026 a company runs payroll, pays a $5,000 fee to a contractor who never furnished a TIN, and pays a deceased former employee's nonqualified plan balance to the estate. Payroll withholding goes on Form 941. The contractor payment requires $1,200 of backup withholding (24%), reported on Form 945, line 2. Publication 15 says such plan distributions to an estate are not wages, so any income tax withheld goes on Form 945, line 1. The 941 and 945 deposits stay separate.

Where states differ. State withholding usually carries its own personal liability rules. As one example, New York's 2025 employer guide (NYS-50) says "all taxes required to be withheld according to the Tax Law constitute a trust fund," and a person required to deduct, account for and pay withheld income tax who fails to do so is liable for a penalty equal to the tax plus interest under Tax Law section 685(g). It adds that more than one person may be liable, including officers, employees, managers and LLC members with that duty. Check each state where you withhold.

Question: Is the employer share of FICA withholding? No. It is the employer's own tax and is not deducted from anyone; only the employee share is withheld and treated as trust fund tax.

Question: Does a payroll provider take on the liability? Not for the employer. Publication 15 says "you remain responsible if the third party fails to perform any required action."

Question: Can a bookkeeper be personally liable? Possibly, if they had the power to decide which creditors were paid. The IRS says someone who only paid bills as a superior directed is not a responsible person.

Question: Must we withhold from a contractor? Generally no federal income tax, but Publication 15 says backup withholding applies if the payee fails to furnish a correct TIN.

Recordkeeping. Publication 15 says to keep all employment tax records for at least 4 years, including amounts and dates of all wage, annuity and pension payments and the names, addresses and SSNs of employees and recipients. This entry describes general federal rules and does not decide whether a particular payment requires withholding or whether a particular person is responsible.

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