The Salary Cap Explained: What Counts and What Does Not

By 4Football Staff · September 26, 2026 · 10 min read

The NFL salary cap limits what teams count against a yearly ceiling, not what they pay in cash. See what goes into a cap number, what is left out, the top-51 rule and why cap space is a calendar tool.

A team announces a six-year contract with a headline value in the hundreds of millions of dollars. A week later, an analyst says the player's cap hit in the first year is a small fraction of that. Both statements are true, and neither is a mistake. The salary cap is a bookkeeping system with its own rules, and the number on the front page of a contract is rarely the number that counts against it.

The National Football League (NFL) has had a salary cap since 1994. It is the main rule that keeps wealthy franchises from simply outspending small ones, and it shapes nearly every roster decision: who is signed, who is cut, when a contract is reworked and why a player is released in March rather than in September. If you want to understand why a team lets a good player go, the cap is usually the first place to look.

This article explains what the cap is, how a player's cap number is built, what counts and what does not, and how teams manage the system over time. It uses round, hypothetical numbers for the examples. We do not list the current cap amount, because it changes every year and the league announces it; check the league's current announcement for the figure.

What the cap actually is

The salary cap is a ceiling on the total of the cap numbers a team's players carry in a given league year. It is not a limit on cash paid. It is not a budget the owner has to meet, and it is not a payroll total in the ordinary sense.

The size of the cap is set each year under the collective bargaining agreement (CBA), the contract between the league and the players' union. The agreement divides league revenue between teams and players, and the cap is set so that player costs approximate the players' agreed share of that revenue. That is why the cap tends to rise when the league's revenue rises, and why a new CBA can reshape it. For the broader agreement, see The Collective Bargaining Agreement.

Every team has the same base cap, with small adjustments. A team must be under the cap at the start of the league year and it must remain under it at every point afterward. The NFL's version is often called a hard cap, because there is no exception that lets a team exceed it, in contrast to leagues where teams may go over by using specific exceptions or by paying a tax.

How a player's cap number is built

A player's cap number (or cap hit) for a season is the sum of several pieces. The main ones:

• Base salary: the amount he is paid for the season under the contract.
• Signing bonus proration: a signing bonus is paid up front in cash, but for cap purposes it is spread evenly over the years of the contract, up to a maximum of five. A bonus of $20 million on a five-year deal adds $4 million to the cap each year.
• Roster bonuses and option bonuses: a roster bonus is paid for being on the roster on a specific date. An option bonus is paid when a team exercises an option. They are counted in the cap in the year they are earned or, for option bonuses, spread out like signing bonuses.
• Incentives: payments for reaching a performance target, such as playing time or statistics. They are treated in a special way, described below.
• Other items: such as workout bonuses and per-game roster bonuses.

A worked example

Suppose a hypothetical player signs a five-year contract with a $20 million signing bonus and a $6 million base salary in the first year.

The player receives $26 million in cash in the first year, but the team charges only $10 million to the cap. Over the full five years, the bonus will be entirely charged, but it is spread out. That timing difference is the whole reason signing bonuses are so common: they let a team give a player a large amount of guaranteed money now while keeping the yearly cap number manageable. The structure is explored in How NFL Contracts Are Structured.

Incentives: likely and unlikely

Incentives follow a special rule. At the time a contract is signed, the league sorts each incentive into one of two categories, based on what the player did the previous season:

• Likely to be earned (LTBE): the player reached that target last season. The full amount counts against the cap right away.
• Not likely to be earned (NLTBE): he did not reach it. The amount does not count against the cap at the start.

At the end of the season the books are corrected. If a player earned an NLTBE incentive, the amount is charged to the team's cap in the following year. If a player did not earn an LTBE incentive, the team gets the unused amount back as extra room the next year. The result is that cap space can shift from one year to the next based on what actually happened on the field.

Who is on the cap and when

The top-51 rule

During the offseason, only the 51 highest cap numbers on a team's roster count toward the cap. Players below that line do not count until the regular season starts. The rule exists because teams carry up to 90 players in the offseason, and the league did not want the cost of the extra players, who earn low salaries, to crowd out the stars. When the regular season begins, the cap includes every player on the active roster, the injured reserve list and the practice squad, plus any other players the rules require.

What this means in practice

Roster cut-down changes a team's cap picture. The offseason counts the 51 largest contracts; the season counts all 53 players on the active roster plus injured players and the practice squad. Teams need to leave room for that shift. See The Active Roster, Injured Reserve and the Rules for Returning Players.

What does not count

The cap covers pay-related items. Several things sit outside it, in general, under the CBA:

• Player benefits such as pension and health programs are accounted for separately.
• Certain league-funded programs that pay players for performance are handled outside team caps.
• Playoff pay is generally paid by the league, not by the team's cap.

The details of which items are inside or outside the cap are defined in the CBA, and the lines have been adjusted in different agreements. If you need to know how a specific payment is treated, consult the CBA text or the NFL Players Association.

Rollover and the minimum

Two other rules matter.

Rollover. If a team ends the year with unused cap space, it can carry the unspent amount into the next year. A team that is careful in one year can therefore spend more in the next one.

The spending floor. The CBA also requires teams to spend a minimum amount of actual cash on players across a multi-year period. A team cannot hold the cap down to save money forever. If a team falls short, it has to make up the difference. This protects the players' side and prevents teams from sitting on unused room.

Tools for managing the cap

Cap room is a resource, and teams manage it with a regular set of tools.

1. Restructuring a contract. A team converts some of a player's base salary into a signing bonus. The player receives the same cash, but the bonus is spread across the remaining years, so the current-year cap number goes down. The cost is higher cap numbers later.
2. Extending a contract. Adding years to a deal can lower each year's charge because the bonus can be spread across more seasons, up to the five-year limit on proration.
3. Releasing a player. A cut removes his salary from the cap, but any unamortized bonus money accelerates onto the books. See Dead Money Explained.
4. Trading a player. The team receiving him takes on his future salary; the team trading him may still carry some bonus money.
5. Using a franchise tag. A tag sets a one-year price. See Franchise Tags and Transition Tags.
6. Signing rookies. First-year players cost a limited amount because of the rookie wage scale, which makes drafted players cheap relative to veterans. The scale is the subject of its own guide, rookie contracts and the wage scale.

Each tool moves cost between years. Few of them make the cost disappear. A team that restructures a lot today will have less flexibility later, which is often called "pushing money into the future."

Why teams keep room unspent

A team may deliberately leave some space unused. Common reasons:

• Injuries: replacing a hurt player means adding a salary, and an injured player's cap number does not disappear.
• In-season moves: the team may want to sign a free agent or make a trade after the season starts.
• The next year: because unused room can roll over, a team can plan ahead.
• Extension plans: a team may want space to pay a young star when his contract comes up.

Common misunderstandings

"The cap is the amount of money a team spends." It is not. Cash and cap differ, because bonuses are paid at once and charged over time.

"A big contract has a big cap hit in its first year." Not necessarily. The cap hit can be small at the start and rise later, which is called a back-loaded contract.

"Players on injured reserve do not count." They do count in the regular season. Their salaries remain on the books.

"Teams can ignore the cap with creative accounting." They can move costs between years, but they cannot exceed the cap at any time. The league's accounting rules prevent loopholes, and teams that break them can be penalized.

"The cap is the same as the budget." An owner may spend less than the cap, within the floor, and can have a lower cash payroll than the cap number suggests.

"A team with cap space must be bad at roster management." Unused space can be a choice. Some teams hold space to be ready for in-season moves or future extensions.

The cap through a calendar year

Cap room is not a single number you check once. It moves as the year goes on, and the rhythm explains the timing of many roster moves.

• Before the league year starts (February and early March). Teams are still carrying last year's contracts, so they rush to release players or restructure deals before they must be under the cap on the first day of the new league year. This is when many well-known veterans are cut.
• Free agency (March). Teams with room spend it. Teams without room wait, or create room, then sign players.
• The draft and rookie signings (spring). Draft picks must be paid, and the team needs enough room for the whole class, though only the top 51 contracts count in the offseason.
• Summer. Teams that held room can use it on extensions. Veterans who are still unsigned, including players released earlier in the year, can also sign during this period.
• Cut-down day (late August). The roster shrinks to the active limit, and the cap picture changes because every player now counts.
• The season. Injuries force replacements, and unused room can be used for in-season moves. At the end of the year, unspent space is carried into the next one.

None of this happens in public through a cap table. It happens through the transactions that you can see on a roster page: who was signed, released or traded, and when. Knowing the calendar lets you read those moves in context.

Why the same player can be cheap in one year and costly in another

A single contract looks different from year to year because of how it is built. A player whose deal is back-loaded may be a bargain in the first season and a burden in the fourth. A player whose deal is front-loaded may be an expensive cap number early and a bargain later. When a team decides to keep or release him, it does not compare today's salary to today's performance in isolation. It compares what he will cost against the alternatives on the market, both now and in the seasons that remain on the contract. That is also why the exact same player can be released by one team and signed by another: each team sees a different cap sheet.

Watching the cap from the outside

Our site does not publish cap sheets, so for contract and cap figures go to the league's own announcements and the NFL Players Association. What you can follow here is the effect of those decisions. The teams pages show each roster, the players pages show who has changed teams, and the injuries page shows who is hurt, which is often the reason a team suddenly needs cap room. When a well-known veteran disappears from a roster in March, the cap is the first explanation to test.

The short version

• The salary cap is a ceiling on the total of cap numbers, not on cash paid.
• A player's cap number is made of base salary, prorated signing bonus (up to five years), bonuses and incentives.
• Incentives are labeled likely or not likely to be earned, and the books are corrected the following year.
• In the offseason only the top 51 contracts count; in the season, the whole roster, injured list and practice squad count.
• Benefits and certain league-funded payments sit outside the cap, as defined by the CBA.
• Unused space can roll over, and a minimum spending requirement prevents teams from staying far below the cap indefinitely.
• The cap amount changes every year, so check the league's current announcement for the number.