withholding
Tax taken out of your pay before you ever see it.
Advance collection of income tax at source, remitted by the payer against the eventual liability.
What that means in practice
Your employer estimates what you will owe and sends it to the government in instalments, all year. That is why a paycheck is smaller than the salary suggests. If too much came out you get a refund; if too little, you owe. A refund is not a bonus — it is your own money coming back.
Withholding operates as a pay-as-you-earn mechanism, with amounts determined by the employee's certificate and statutory tables. ⚠️ It is an estimate, not the liability: the return reconciles the two. A large refund indicates systematic over-withholding, which is an interest-free loan to the government rather than a gain, and is adjustable by revising the withholding certificate.
Questions people ask
Does this change depending on which state I live in?
No — payroll taxes are federal. withholding works the same in every state. It is one of the few parts of a paycheck that does not move when you do. That is why comparing take-home between states isolates the state layer so cleanly.
Do I need to understand other terms before this one makes sense?
This one does not stand alone. Several related terms are linked below. withholding is easier to hold once they are in place.
I have seen this called something else. Is it the same thing?
Same thing, different label. withholding has more than one common name, and the page lists them precisely because searching the wrong one leads nowhere.
Is this determined federally or by jurisdiction?
Payroll taxes are levied under federal law and apply uniformly across jurisdictions. Rates and thresholds are set by statute and adjusted annually where indexed. State income tax is separate and additive; it does not modify the payroll computation.
What conceptual dependencies does this term carry?
This term has multiple conceptual dependencies, enumerated in the related-terms list. Definitions in tax law are frequently mutually referential — a provision's meaning depends on defined terms elsewhere in the code — so isolated reading commonly produces error.
What alternative designations refer to this concept?
This concept is referred to by multiple designations across statutory text, agency guidance, payroll documentation and common usage. The alternatives are enumerated on this page. ⚠️ Terminology divergence is a frequent source of error where a statutory term and its colloquial equivalent are not exactly co-extensive.