# SGR Management LLC SGR Management LLC is an ITIN acceptance agent in Hayward, California, United States. ## Details - Address: 1478 B Street, Unit 2A, Hayward, California, 94541, United States - Phone: [510-209-1440]() - Also trading as: Avanza Tax Management LLC - Source note: IRS Acceptance Agent Program list for California (page last reviewed 24-Sep-2026; retrieved 2026-10-02). US federal public domain (17 U.S.C. 105). ## Questions ### Where is SGR Management LLC? SGR Management LLC is at 1478 B Street, Unit 2A, Hayward, California, 94541, United States. ### How do I contact SGR Management LLC? To contact SGR Management LLC, call 510-209-1440. ## Source From [U.S. Internal Revenue Service](https://www.irs.gov/individuals/international-taxpayers/acceptance-agents-california), license Public domain (17 U.S.C. 105; irs.gov content use terms request credit), checked 2026-10-03. Last updated October 3, 2026. ## Links - This ITIN acceptance agent on the [web page]() - [Certifying acceptance agents in Hayward]() - [IRS acceptance agents in Hayward]() - [More ITIN acceptance agents in Hayward]()