Post-employment benefits that an employee will begin to receive at the start of retirement. This does not include pension benefits paid to the retired employee. Other post-employment benefits that a retiree can be compensated for are life insurance premiums, healthcare premiums and deferred-compensation arrangements.
Explained further: Life insurance and healthcare premiums that a retired employee ‘earns’ after retirement will most likely continue to be a taxable benefit. This will increase the retiree’s total income tax payable for any given year.
A deferred-compensation arrangement is a salary agreement where the employee, based on his/her work history or performance, is paid a salary for some predetermined time after retiring. The tax consequences for such an arrangement are often unattractive to the company, as payments are not usually tax deductible.
Definition courtesy of Investopedia