The annual limit on employee contributions to a 403(b) account is $18,000 for workers under age 50, as of 2015. Employees age 50 and over can make additional catch-up contributions of up to $6,000, according to the Internal Revenue Service.
The annual limit on total contributions to a 403(b) account, including employee and employer contributions, is $53,000 or 100 percent of the employee’s salary, the IRS notes. Some 403(b) plans also let employees contribute an additional $3,000 if they have 15 years of service in a variety of occupations, including public school systems, hospitals, churches and health service agencies. Employees are eligible for this additional catch-up provision based on their length of service, not their age.