Your employer may grant extensions for any period of time up to 36 months (i.e. , year-by-year or for the entire 36 month period at one time).A Guide to Completing your. CalPERS Service Retirement Election provides information and the various application forms. You may file Form IT204 or Form IT205 any time before the extension period ends. The declaration permits the IRS to postpone certain tax-filing and tax-payment deadlines for taxpayers who reside or have a business in the disaster area. See what benefits are available, including medical, dental, retirement contributions, PTO, and more CalPERS will help you with estimating your monthly pension, filing and processing your retirement paperwork, and much more. Are you interested in employment with the Clerk's Office? Our benefits are great.