A pension "is a fund into which a sum of money is added during an employee's employment years and from which payments are drawn to support the person's retirement from work in the form of periodic payments."
A defined contribution plan guarantees (to employees) fixed annual contributions to a pension plan (e.g., 5% of the employee's salary).
A defined benefit pension plan, on the other hand, guarantees a fixed amount of retirement money available to employees when they retire.
Not many companies offer new employees defined benefit plans. But there are still many individuals covered by old defined benefit plans.
Accounting for defined benefit plans is complex.
Accounting for defined contribution plans is not:
Debit: Pension Expense $XXX
Credit: Cash $XXX
A pension obligation is an employer's obligation to pay retirement income to its employees in the future.
Plan assets refer to the funds (e.g., cash and investments) set aside by the employer to pay retirement income to its employees in the future.
Pension expense refers the periodic expense associated with having a pension plan.