Salary renegotiations help teams greatly in getting under the salary cap in a given year. But they also lead to peril down the line.
The first renegotiation of a veteran contract can take place at any time. However, a veteran may not renegotiate to raise his salary for twelve months after the most recent renegotiation. Additionally, no player or team can agree to renegotiate a term of a previously signed contract for a prior year. No contract can be negotiated for a current season after the last regular season game. Furthermore, rookie contracts cannot be renegotiated for one year after the signing date or the following August 1, whichever is later.
No player can agree to a contract, renegotiation, or extension that expires before the last day of a season. Moreover, renegotiated contracts are revalued for Salary Cap purposes at the time of the renegotiation. If at the time of the renegotiation, an incentive bonus has already been reached, that bonus is considered Likely To Be Earned (LTBE). Also, any new or changed incentive bonuses renegotiated after the start of the regular season are automatically considered LTBE. Finally, if a player is paid any more than the minimum amount for off-season workout programs, then the payment will be treated as a renegotiation.