How the NBA Salary Cap Works: Soft Cap and Exceptions

The NBA salary cap is a soft limit, roughly $154.6 million per team for 2025-26, that clubs are allowed to exceed by using specific exceptions built into the collective bargaining agreement. That “soft” part is everything. Unlike the NFL’s hard ceiling, an NBA team over the cap can keep adding players, which is why the cap is better understood as a starting point with escape hatches than a wall.

Soft cap versus hard cap

A hard cap, like the NFL salary cap, cannot be crossed under any circumstance; the roster has to fit under the number. The NBA cap is the opposite. Almost every good team is over it, and the CBA hands them named exceptions to sign players anyway.

The cap itself is derived from basketball-related income and recalculated every year, so it rises in most seasons as revenue grows. But the number alone tells you little, because the exceptions are where roster-building actually happens.

The main exceptions

Here are the tools an over-the-cap team leans on. Each exists so a capped-out club is not frozen out of the market, and the values reset every year, per the league’s CBA materials.

Exception	What it does	Rough 2025-26 value
Bird rights	Re-sign your own free agent over the cap, up to a max salary	Up to the player’s max
Early Bird	Re-sign your own free agent after two seasons, smaller raise	Set formula
Non-taxpayer mid-level	Sign an outside free agent while over the cap	~$14.1M
Taxpayer mid-level	Smaller mid-level for teams deeper into the tax	~$5.7M
Room exception	For teams under the cap after using their space	~$8.8M
Bi-annual exception	A smaller signing tool usable every other year	~$5.1M

Bird rights, the most important exception

Bird rights are named after Larry Bird, and they are the single biggest reason NBA stars usually re-sign with their own team. A player earns full Bird rights after three seasons with the same club without leaving as a free agent, and those rights let the team pay him more, over more years, than any rival can offer, even if the team is already over the cap.

That built-in home-team advantage is why the smart play is almost always to develop and retain rather than chase. Our deeper explainer on Bird rights in the NBA unpacks the Early Bird and Non-Bird variations and how they change a player’s next contract.

The mid-level exception

If Bird rights are for keeping your own, the mid-level exception is for adding someone else’s. It is a fixed chunk of money an over-the-cap team can spend on an outside free agent, worth about $14.1 million in the non-taxpayer version for 2025-26. Teams deeper into the tax get a smaller taxpayer mid-level, and teams that dipped under the cap get a modest room exception instead. The mid-level is often the most valuable signing tool a contender has all offseason, because everything else is committed.

Cap space versus exceptions

There is a fork in the road every front office faces. A team can either stay under the cap and use its space to sign players outright, or go over the cap and rely on exceptions. You cannot do both at full strength: dipping under the cap wipes out the full mid-level and leaves only the smaller room exception. Most contenders choose to operate over the cap, keep their Bird rights, and build through exceptions, which live cap sheets like Spotrac’s NBA cap page track team by team.

Understanding the soft cap is step one; the real spending restrictions arrive higher up. Once a team’s payroll climbs past the tax line, it enters luxury tax territory, and above that sit the first and second aprons that can freeze picks and strip away these very exceptions. For how far individual deals push teams up that scale, see the most expensive NBA contract ever signed. Every dollar figure here is a 2025-26 snapshot and resets each July, so check the current cap and exception values before applying them.