Leaving without full notice means paying for the unserved days. Pick a monthly salary to see the salary in lieu of notice for common shortfalls.
Salary in lieu of notice is the pay an employer recovers when an employee does not serve the full contractual notice. The common method is the monthly salary divided by 30, multiplied by the days short. The exact base and divisor are set by the contract, so check your appointment letter. It is settled in the full and final settlement; see the notice period definition.
The amount is not always yours to lose. Many employers waive part of the notice, and a new employer will often buy it out as part of the offer, so the figure on these pages is a starting point for negotiation rather than a fixed penalty. Whether the recovery runs on gross salary or only on basic makes a large difference to the number, which is the single most important thing to confirm in your appointment letter before you resign.
Because notice pay is a recovery set off against your final dues, it interacts with leave encashment and gratuity. If your pending salary and leave encashment exceed the notice recovery, you still receive a net amount; if the recovery is larger, the balance is payable by you. Pick a salary above to see the shortfall figures, then read them alongside the full and final settlement guide to see how they net off.