diff --git a/apps/dashboard/src/app/(internal)/brukere/[id]/edit-card.tsx b/apps/dashboard/src/app/(internal)/brukere/[id]/edit-card.tsx
index c6a6ffbba4..3f027d4d4d 100644
--- a/apps/dashboard/src/app/(internal)/brukere/[id]/edit-card.tsx
+++ b/apps/dashboard/src/app/(internal)/brukere/[id]/edit-card.tsx
@@ -6,7 +6,8 @@ import { useDebouncedValue } from "@mantine/hooks"
 import { IconCheck, IconLink, IconUsersGroup, IconX, IconArrowUpRight } from "@tabler/icons-react"
 import { type FC, useEffect, useState } from "react"
 import { useLinkOwUserToWorkspaceUserMutation, useUpdateUserMutation } from "../mutations"
-import { useFindWorkspaceUserQuery, useGroupAllByMemberQuery, useIsAdminQuery } from "../queries"
+import { useAuthorization } from "@/auth/authorization-context"
+import { useFindWorkspaceUserQuery, useGroupAllByMemberQuery } from "../queries"
 import { useUserProfileEditForm } from "./edit-form"
 import { useUserDetailsContext } from "./provider"
 import { getStudyGrade } from "@dotkomonline/utils"
@@ -17,7 +18,7 @@ export const UserEditCard: FC = () => {
 
   const [customKey, setCustomKey] = useState<string | undefined>(undefined)
 
-  const { isAdmin } = useIsAdminQuery()
+  const { isAdministrator } = useAuthorization()
   const { groups } = useGroupAllByMemberQuery(user.id)
 
   const update = useUpdateUserMutation()
@@ -27,7 +28,7 @@ export const UserEditCard: FC = () => {
 
   const isWorkspaceLinked = Boolean(user.workspaceUserId)
   const showWorkspaceLink = isWorkspaceLinked || groups.length > 0
-  const isWorkspaceFetchEnabled = (isAdmin || isUser) && showWorkspaceLink
+  const isWorkspaceFetchEnabled = (isAdministrator || isUser) && showWorkspaceLink
   const { workspaceUser, isLoading: isLoadingWorkspaceUser } = useFindWorkspaceUserQuery(
     user.id,
     customKey,
@@ -78,7 +79,7 @@ export const UserEditCard: FC = () => {
 
       <LinkUser
         showWorkspaceLink={showWorkspaceLink}
-        isAdmin={isAdmin ?? false}
+        isAdministrator={isAdministrator}
         isWorkspaceLinked={isWorkspaceLinked}
         isWorkspaceFetchEnabled={isWorkspaceFetchEnabled}
         isLoadingWorkspaceUser={isLoadingWorkspaceUser}
@@ -94,7 +95,7 @@ export const UserEditCard: FC = () => {
 
 interface LinkUserProps {
   showWorkspaceLink: boolean
-  isAdmin: boolean
+  isAdministrator: boolean
   isWorkspaceLinked: boolean
   isWorkspaceFetchEnabled: boolean
   isLoadingWorkspaceUser: boolean
@@ -105,7 +106,7 @@ interface LinkUserProps {
 
 const LinkUser: FC<LinkUserProps> = ({
   showWorkspaceLink,
-  isAdmin,
+  isAdministrator,
   isWorkspaceLinked,
   isWorkspaceFetchEnabled,
   isLoadingWorkspaceUser,
@@ -171,14 +172,14 @@ const LinkUser: FC<LinkUserProps> = ({
         )}
       </Stack>
 
-      {!isWorkspaceLinked && !isAdmin && (
+      {!isWorkspaceLinked && !isAdministrator && (
         <Text size="xs">
           Kontakt HS for å tilknytte brukeren til en Google-bruker. Brukeren må tilknyttes for å kunne bli lagt til i
           e-postlister.
         </Text>
       )}
 
-      {!isWorkspaceLinked && isAdmin && (
+      {!isWorkspaceLinked && isAdministrator && (
         <TextInput
           description="Egendefinert nøkkel. Bruk denne om den ikke finner automatisk. Kan være komplett e-postadresse eller fullt navn."
           placeholder="navn.navnesen@online.ntnu.no eller Navn Navnesen"
@@ -234,7 +235,7 @@ const LinkUser: FC<LinkUserProps> = ({
           <Button
             color="green"
             w="fit-content"
-            disabled={!isAdmin || !workspaceUser}
+            disabled={!isAdministrator || !workspaceUser}
             leftSection={<IconLink size={16} />}
             onClick={onClick}
           >
diff --git a/apps/dashboard/src/app/(internal)/brukere/[id]/edit-form.tsx b/apps/dashboard/src/app/(internal)/brukere/[id]/edit-form.tsx
index 94a3a311ee..67c9f1d3c8 100644
--- a/apps/dashboard/src/app/(internal)/brukere/[id]/edit-form.tsx
+++ b/apps/dashboard/src/app/(internal)/brukere/[id]/edit-form.tsx
@@ -11,7 +11,7 @@ import {
   UserWriteSchema,
 } from "@dotkomonline/types"
 import { createTextareaInput } from "@/components/forms/TextareaInput"
-import { useIsAdminQuery } from "../queries"
+import { useAuthorization } from "@/auth/authorization-context"
 
 interface UseUserProfileWriteFormProps {
   onSubmit(data: UserWrite): void
@@ -20,7 +20,7 @@ interface UseUserProfileWriteFormProps {
 }
 
 export const useUserProfileEditForm = ({ defaultValues, onSubmit, label = "Bruker" }: UseUserProfileWriteFormProps) => {
-  const { isAdmin } = useIsAdminQuery()
+  const { isAdministrator } = useAuthorization()
   const fileUpload = useUserFileUploadMutation()
 
   return useFormBuilder({
@@ -36,12 +36,12 @@ export const useUserProfileEditForm = ({ defaultValues, onSubmit, label = "Bruke
       name: createTextInput({
         label: "Navn",
         placeholder: "Ola Nordmann",
-        disabled: isAdmin !== true,
+        disabled: !isAdministrator,
       }),
       email: createTextInput({
         label: "E-post",
         placeholder: "ola.nordmann@gmail.com",
-        disabled: isAdmin !== true,
+        disabled: !isAdministrator,
       }),
       phone: createTextInput({
         label: "Telefon",
diff --git a/apps/dashboard/src/app/(internal)/brukere/[id]/page.tsx b/apps/dashboard/src/app/(internal)/brukere/[id]/page.tsx
index 49d4227e31..3106aea1b2 100644
--- a/apps/dashboard/src/app/(internal)/brukere/[id]/page.tsx
+++ b/apps/dashboard/src/app/(internal)/brukere/[id]/page.tsx
@@ -11,7 +11,7 @@ import {
 } from "@tabler/icons-react"
 import { useRouter, useSearchParams } from "next/navigation"
 import type { FC } from "react"
-import { useIsAdminQuery } from "../queries"
+import { useAuthorization } from "@/auth/authorization-context"
 import { UserEditCard } from "./edit-card"
 import { MembershipPage } from "./membership-page"
 import { useUserDetailsContext } from "./provider"
@@ -68,7 +68,7 @@ const SIDEBAR_LINKS = [
 
 export default function UserDetailsPage() {
   const { user } = useUserDetailsContext()
-  const { isAdmin } = useIsAdminQuery()
+  const { isAdministrator } = useAuthorization()
   const router = useRouter()
 
   const searchParams = useSearchParams()
@@ -89,13 +89,13 @@ export default function UserDetailsPage() {
 
       <Tabs defaultValue={currentTab} onChange={handleTabChange}>
         <Tabs.List>
-          {SIDEBAR_LINKS.filter((link) => !link.isAdmin || isAdmin).map(({ label, icon: Icon, slug }) => (
+          {SIDEBAR_LINKS.filter((link) => !link.isAdmin || isAdministrator).map(({ label, icon: Icon, slug }) => (
             <Tabs.Tab key={slug} value={slug} leftSection={<Icon width={14} height={14} />}>
               {label}
             </Tabs.Tab>
           ))}
         </Tabs.List>
-        {SIDEBAR_LINKS.filter((link) => !link.isAdmin || isAdmin).map(({ slug, component: Component }) => (
+        {SIDEBAR_LINKS.filter((link) => !link.isAdmin || isAdministrator).map(({ slug, component: Component }) => (
           <Tabs.Panel mt="md" key={slug} value={slug}>
             <Component />
           </Tabs.Panel>
diff --git a/apps/dashboard/src/app/(internal)/brukere/components/use-membership-table.tsx b/apps/dashboard/src/app/(internal)/brukere/components/use-membership-table.tsx
index f5d8c725c1..b9124d7908 100644
--- a/apps/dashboard/src/app/(internal)/brukere/components/use-membership-table.tsx
+++ b/apps/dashboard/src/app/(internal)/brukere/components/use-membership-table.tsx
@@ -6,7 +6,7 @@ import { IconEdit, IconTrash } from "@tabler/icons-react"
 import { createColumnHelper, getCoreRowModel, useReactTable } from "@tanstack/react-table"
 import { formatDate } from "date-fns"
 import { useMemo } from "react"
-import { useIsAdminQuery } from "../queries"
+import { useAuthorization } from "@/auth/authorization-context"
 import { useConfirmDeleteMembershipModal } from "./confirm-delete-membership-modal"
 import { useEditMembershipModal } from "./edit-membership-modal"
 import { getStudyGrade, isSpringSemester } from "@dotkomonline/utils"
@@ -17,7 +17,7 @@ interface Props {
 }
 
 export const useMembershipTable = ({ data }: Props) => {
-  const { isAdmin } = useIsAdminQuery()
+  const { isAdministrator } = useAuthorization()
   const columnHelper = createColumnHelper<Membership>()
   const openEditMembershipModal = useEditMembershipModal()
   const openDeleteMembershipModal = useConfirmDeleteMembershipModal()
@@ -80,7 +80,7 @@ export const useMembershipTable = ({ data }: Props) => {
           </Button>
         ),
       }),
-      ...(isAdmin
+      ...(isAdministrator
         ? [
             columnHelper.accessor((role) => role, {
               id: "delete",
@@ -100,7 +100,7 @@ export const useMembershipTable = ({ data }: Props) => {
           ]
         : []),
     ],
-    [columnHelper, openEditMembershipModal, openDeleteMembershipModal, isAdmin]
+    [columnHelper, openEditMembershipModal, openDeleteMembershipModal, isAdministrator]
   )
 
   return useReactTable({
diff --git a/apps/dashboard/src/app/(internal)/brukere/queries.ts b/apps/dashboard/src/app/(internal)/brukere/queries.ts
index fafa0c1dff..e1c9452488 100644
--- a/apps/dashboard/src/app/(internal)/brukere/queries.ts
+++ b/apps/dashboard/src/app/(internal)/brukere/queries.ts
@@ -51,12 +51,6 @@ export const useGroupAllByMemberQuery = (userId: UserId) => {
   return { groups, isLoading }
 }
 
-export const useIsAdminQuery = () => {
-  const trpc = useTRPC()
-  const { data: isAdmin, isLoading } = useQuery(trpc.user.isAdmin.queryOptions())
-  return { isAdmin, isLoading }
-}
-
 export const useFindWorkspaceUserQuery = (userId: UserId, customKey?: string, enabled = true) => {
   const trpc = useTRPC()
   const {
diff --git a/apps/dashboard/src/app/(internal)/grupper/[id]/edit-card.tsx b/apps/dashboard/src/app/(internal)/grupper/[id]/edit-card.tsx
index 54c1a44835..d7d74c87e4 100644
--- a/apps/dashboard/src/app/(internal)/grupper/[id]/edit-card.tsx
+++ b/apps/dashboard/src/app/(internal)/grupper/[id]/edit-card.tsx
@@ -5,7 +5,7 @@ import { useDebouncedValue } from "@mantine/hooks"
 import { IconCheck, IconLink, IconTrash, IconUsersGroup, IconX } from "@tabler/icons-react"
 import { useRouter } from "next/navigation"
 import { type FC, useEffect, useState } from "react"
-import { useIsAdminQuery } from "@/app/(internal)/brukere/queries"
+import { useAuthorization } from "@/auth/authorization-context"
 import { useDeleteGroupMutation, useLinkGroupMutation, useUpdateGroupMutation } from "../mutations"
 import { useFindWorkspaceGroupQuery } from "../queries"
 import { useGroupWriteForm } from "../write-form"
@@ -30,12 +30,12 @@ export const GroupEditCard: FC = () => {
     },
   })
 
-  const { isAdmin } = useIsAdminQuery()
+  const { isAdministrator } = useAuthorization()
 
   const isWorkspaceLinked = Boolean(group.workspaceGroupId)
   const showWorkspaceLink =
     isWorkspaceLinked || group.type === "COMMITTEE" || group.type === "NODE_COMMITTEE" || group.type === "EMAIL_ONLY"
-  const isWorkspaceFetchEnabled = (isAdmin ?? false) && showWorkspaceLink
+  const isWorkspaceFetchEnabled = isAdministrator && showWorkspaceLink
   const { workspaceGroup, isLoading: isLoadingWorkspaceGroup } = useFindWorkspaceGroupQuery(
     group.slug,
     customKey || undefined,
@@ -57,7 +57,7 @@ export const GroupEditCard: FC = () => {
     <Stack>
       <LinkGroup
         showWorkspaceLink={showWorkspaceLink}
-        isAdmin={isAdmin ?? false}
+        isAdministrator={isAdministrator}
         isWorkspaceLinked={isWorkspaceLinked}
         isWorkspaceFetchEnabled={isWorkspaceFetchEnabled}
         isLoadingWorkspaceGroup={isLoadingWorkspaceGroup}
@@ -77,7 +77,7 @@ export const GroupEditCard: FC = () => {
 
 interface LinkGroupProps {
   showWorkspaceLink: boolean
-  isAdmin: boolean
+  isAdministrator: boolean
   isWorkspaceLinked: boolean
   isWorkspaceFetchEnabled: boolean
   isLoadingWorkspaceGroup: boolean
@@ -88,7 +88,7 @@ interface LinkGroupProps {
 
 const LinkGroup: FC<LinkGroupProps> = ({
   showWorkspaceLink,
-  isAdmin,
+  isAdministrator,
   isWorkspaceLinked,
   isWorkspaceFetchEnabled,
   isLoadingWorkspaceGroup,
@@ -152,14 +152,14 @@ const LinkGroup: FC<LinkGroupProps> = ({
         )}
       </Stack>
 
-      {!isWorkspaceLinked && !isAdmin && (
+      {!isWorkspaceLinked && !isAdministrator && (
         <Text size="xs">
           Kontakt HS for å tilknytte gruppen til en e-postliste. Gruppen må tilknyttes for å kunne legge medlemmer til i
           e-postlisten.
         </Text>
       )}
 
-      {!isWorkspaceLinked && isAdmin && (
+      {!isWorkspaceLinked && isAdministrator && (
         <TextInput
           description="Egendefinert nøkkel. Bruk denne om den ikke finner automatisk. Må være en komplett e-postadresse eller lokaldelen til e-postadressen (det før @)."
           placeholder="dotkom@online.ntnu.no eller dotkom"
@@ -215,7 +215,7 @@ const LinkGroup: FC<LinkGroupProps> = ({
           <Button
             color="green"
             w="fit-content"
-            disabled={!isAdmin || !workspaceGroup}
+            disabled={!isAdministrator || !workspaceGroup}
             leftSection={<IconLink size={16} />}
             onClick={onClick}
           >
diff --git a/apps/dashboard/src/app/ApplicationShell.tsx b/apps/dashboard/src/app/ApplicationShell.tsx
index ab53a3c8cd..893c67d35a 100644
--- a/apps/dashboard/src/app/ApplicationShell.tsx
+++ b/apps/dashboard/src/app/ApplicationShell.tsx
@@ -43,6 +43,7 @@ import {
   IconUsersGroup,
   IconWheelchair,
 } from "@tabler/icons-react"
+import { useAuthorization } from "@/auth/authorization-context"
 import Link from "next/link"
 import { usePathname } from "next/navigation"
 import { type FC, useEffect } from "react"
@@ -119,11 +120,11 @@ const navigations = [
   isAdmin?: boolean
 }[]
 interface ApplicationShellProps {
-  isAdmin: boolean
   children: React.ReactNode
 }
 
-export const ApplicationShell: FC<ApplicationShellProps> = ({ isAdmin, children }) => {
+export const ApplicationShell: FC<ApplicationShellProps> = ({ children }) => {
+  const { isAdministrator } = useAuthorization()
   const [mobileOpened, { toggle: toggleMobile }] = useDisclosure()
   const [desktopOpened, { toggle: toggleDesktop }] = useDisclosure(true)
   const pathname = usePathname()
@@ -190,7 +191,7 @@ export const ApplicationShell: FC<ApplicationShellProps> = ({ isAdmin, children
       </AppShellHeader>
       <AppShellNavbar p="md">
         {navigations
-          .filter((navigation) => isAdmin || !navigation.isAdmin)
+          .filter((navigation) => isAdministrator || !navigation.isAdmin)
           .map((navigation) => (
             <NavLink
               component={Link}
diff --git a/apps/dashboard/src/app/layout.tsx b/apps/dashboard/src/app/layout.tsx
index 548faa315f..6175eeb0d6 100644
--- a/apps/dashboard/src/app/layout.tsx
+++ b/apps/dashboard/src/app/layout.tsx
@@ -15,9 +15,11 @@ import { nb } from "date-fns/locale"
 import type { Metadata } from "next"
 import PlausibleProvider from "next-plausible"
 import type { PropsWithChildren } from "react"
+import { AuthorizationProvider } from "@/auth/authorization-context"
 import { ApplicationShell } from "./ApplicationShell"
 import { ModalProvider } from "./ModalProvider"
 import { QueryProvider } from "./QueryProvider"
+import type { GroupId, GroupRoleType } from "@dotkomonline/types"
 
 setDateFnsDefaultOptions({ locale: nb })
 
@@ -51,7 +53,16 @@ export default async function RootLayout({ children }: PropsWithChildren) {
   const accessToken = await getServerAccessToken()
   // Hide the Auth0 user from the client when no usable token exists, so a stale cookie is not treated as logged-in.
   const auth0User = accessToken !== null && session?.user !== undefined ? session.user : undefined
-  const isAdmin = accessToken !== null ? await server.user.isAdmin.query() : false
+
+  const { isAdministrator, isCommitteeMember, affiliations } =
+    accessToken !== null
+      ? await server.user.getAuthorization.query()
+      : { isAdministrator: false, isCommitteeMember: false, affiliations: {} }
+
+  const affiliationsMap = new Map<GroupId, Set<GroupRoleType>>()
+  for (const [groupId, roles] of Object.entries(affiliations)) {
+    affiliationsMap.set(groupId, new Set(roles))
+  }
 
   return (
     <html lang="no" {...mantineHtmlProps}>
@@ -65,7 +76,13 @@ export default async function RootLayout({ children }: PropsWithChildren) {
               <MantineProvider defaultColorScheme="auto" theme={theme}>
                 <Notifications />
                 <ModalProvider>
-                  <ApplicationShell isAdmin={isAdmin}>{children}</ApplicationShell>
+                  <AuthorizationProvider
+                    isAdministrator={isAdministrator}
+                    isCommitteeMember={isCommitteeMember}
+                    affiliations={affiliationsMap}
+                  >
+                    <ApplicationShell>{children}</ApplicationShell>
+                  </AuthorizationProvider>
                 </ModalProvider>
               </MantineProvider>
             </QueryProvider>
diff --git a/apps/dashboard/src/auth/authorization-context.tsx b/apps/dashboard/src/auth/authorization-context.tsx
new file mode 100644
index 0000000000..f2e41fd121
--- /dev/null
+++ b/apps/dashboard/src/auth/authorization-context.tsx
@@ -0,0 +1,37 @@
+"use client"
+
+import type { GroupId, GroupRoleType } from "@dotkomonline/types"
+import { createContext, useContext, useMemo } from "react"
+import type { PropsWithChildren } from "react"
+
+interface AuthorizationContextValue {
+  isAdministrator: boolean
+  isCommitteeMember: boolean
+  affiliations: Map<GroupId, Set<GroupRoleType>>
+}
+
+const AuthorizationContext = createContext<AuthorizationContextValue | null>(null)
+
+export function AuthorizationProvider({ children, ...value }: PropsWithChildren<AuthorizationContextValue>) {
+  return <AuthorizationContext.Provider value={value}>{children}</AuthorizationContext.Provider>
+}
+
+export function useAuthorization() {
+  const ctx = useContext(AuthorizationContext)
+
+  if (ctx === null) {
+    throw new Error("useAuthorization must be used within AuthorizationProvider")
+  }
+
+  return useMemo(
+    () => ({
+      isAdministrator: ctx.isAdministrator,
+      isCommitteeMember: ctx.isCommitteeMember,
+      affiliations: ctx.affiliations,
+      isGroupMember: (groupId: GroupId) => ctx.isAdministrator || ctx.affiliations.has(groupId),
+      hasGroupRole: (groupId: GroupId, role: GroupRoleType) =>
+        ctx.isAdministrator || (ctx.affiliations.get(groupId)?.has(role) ?? false),
+    }),
+    [ctx]
+  )
+}
diff --git a/apps/rpc/src/modules/user/user-router.ts b/apps/rpc/src/modules/user/user-router.ts
index 04db63f1ad..e34592cba8 100644
--- a/apps/rpc/src/modules/user/user-router.ts
+++ b/apps/rpc/src/modules/user/user-router.ts
@@ -1,5 +1,6 @@
 import type { PresignedPost } from "@aws-sdk/s3-presigned-post"
 import {
+  GroupRoleTypeSchema,
   MembershipSchema,
   MembershipWriteSchema,
   UserFilterQuerySchema,
@@ -249,6 +250,40 @@ const isAdminProcedure = procedure.query(async ({ ctx }) => {
   return ctx.authorizationService.isAdministrator(principal.affiliations)
 })
 
+export type GetAuthorizationInput = inferProcedureInput<typeof getAuthorizationProcedure>
+export type GetAuthorizationOutput = inferProcedureOutput<typeof getAuthorizationProcedure>
+const getAuthorizationProcedure = procedure
+  .output(
+    z.object({
+      isAdministrator: z.boolean(),
+      isCommitteeMember: z.boolean(),
+      affiliations: z.record(z.string(), z.array(GroupRoleTypeSchema)),
+    })
+  )
+  .query(async ({ ctx }) => {
+    const principal = ctx.principal
+
+    if (principal === null) {
+      return {
+        isAdministrator: false,
+        isCommitteeMember: false,
+        affiliations: {},
+      }
+    }
+
+    const affiliations: Record<string, z.infer<typeof GroupRoleTypeSchema>[]> = {}
+
+    for (const [groupId, roles] of principal.affiliations.entries()) {
+      affiliations[groupId] = Array.from(roles)
+    }
+
+    return {
+      isAdministrator: ctx.authorizationService.isAdministrator(principal.affiliations),
+      isCommitteeMember: ctx.authorizationService.isCommitteeMember(principal.affiliations),
+      affiliations,
+    }
+  })
+
 export type ConfirmIdentityLinkInput = inferProcedureInput<typeof confirmIdentityLinkProcedure>
 export type ConfirmIdentityLinkOutput = inferProcedureOutput<typeof confirmIdentityLinkProcedure>
 const confirmIdentityLinkProcedure = procedure
@@ -362,6 +397,7 @@ export const userRouter = t.router({
   syncEmailFromAuth0: syncEmailFromAuth0Procedure,
   isStaff: isStaffProcedure,
   isAdmin: isAdminProcedure,
+  getAuthorization: getAuthorizationProcedure,
   confirmIdentityLink: confirmIdentityLinkProcedure,
   mergeUsers: mergeUsersProcedure,
   getAuth0Connections: getAuth0ConnectionsProcedure,