/topics/news/b/announcements/posts/serve-and-protect-fixed-cash-isa---guaranteed-tax-free-return-of-4Serve and Protect Credit Union have launched a Fixed Cash ISA for the 2025/26 tax year giving employees within the Police, Prison, Military, Fire and Health Services the opportunity to earn a guaranteed tax-free return of 4% AER (Annual Equivalent Raen-USTelligent Community 12