The NYC Deferred Compensation Plan offers two tax-advantaged ways of saving for your retirement; you can contribute on a Pre-tax or after-tax Roth basis - or both.
This video provides information about the basic differences between Pre-tax and Roth contributions.
If you still have questions, or would like more information about the Plan, register to attend a free retirement planning webinar or call the Plan's Client Service Department at 212.306.7760.