diff --git a/src/FiscalOS.API/Auth/AuthExtensions.cs b/src/FiscalOS.API/Auth/AuthExtensions.cs
index 2e55eaf..c22d045 100644
--- a/src/FiscalOS.API/Auth/AuthExtensions.cs
+++ b/src/FiscalOS.API/Auth/AuthExtensions.cs
@@ -9,6 +9,7 @@ internal static class AuthExtensions
     var authGroup = app.MapGroup(RouteGroupPrefix);
 
     authGroup.MapLoginEndpoint();
+    authGroup.MapLogoutEndpoint();
 
     authGroup.MapRefreshEndpoint()
       .RequireAuthorization(Schemes.AllowExpiredTokens);
diff --git a/src/FiscalOS.API/Auth/Logout/Endpoint.cs b/src/FiscalOS.API/Auth/Logout/Endpoint.cs
new file mode 100644
index 0000000..de46d7b
--- /dev/null
+++ b/src/FiscalOS.API/Auth/Logout/Endpoint.cs
@@ -0,0 +1,38 @@
+internal static class Endpoint
+{
+  private const string Route = "/logout";
+
+  public static RouteHandlerBuilder MapLogoutEndpoint(this RouteGroupBuilder groupBuilder)
+  {
+    return groupBuilder.MapPost(Route, HandleAsync);
+  }
+
+  private static async Task<IResult> HandleAsync(
+    HttpContext httpContext,
+    [FromServices] AppDbContext appDbContext,
+    CancellationToken ct
+  )
+  {
+    var userId = httpContext.GetUserId();
+    var refreshToken = httpContext.GetRefreshTokenFromCookie();
+
+    var user = await appDbContext.Users
+      .Include(u => u.RefreshTokens
+        .Where(r => r.Token == refreshToken)
+      )
+      .Where(u => u.Id == userId)
+      .SingleOrDefaultAsync(ct);
+
+    if (user is null || user.RefreshTokens.Any() is false)
+    {
+      return Results.Unauthorized();
+    }
+
+    user.RefreshTokens.First().Revoke();
+    await appDbContext.SaveChangesAsync(ct);
+
+    httpContext.ExpireRefreshTokenCookie();
+
+    return Results.NoContent();
+  }
+}
\ No newline at end of file
diff --git a/src/FiscalOS.API/Http/HttpContextExtensions.cs b/src/FiscalOS.API/Http/HttpContextExtensions.cs
index dd443f7..18b46b6 100644
--- a/src/FiscalOS.API/Http/HttpContextExtensions.cs
+++ b/src/FiscalOS.API/Http/HttpContextExtensions.cs
@@ -25,6 +25,21 @@ internal static class HttpContextExtensions
     );
   }
 
+  public static void ExpireRefreshTokenCookie(this HttpContext context)
+  {
+    context.Response.Cookies.Append(
+      RefreshTokenCookieName,
+      string.Empty,
+      new CookieOptions
+      {
+        HttpOnly = true,
+        Expires = DateTimeOffset.MinValue,
+        SameSite = SameSiteMode.Strict,
+        Secure = true
+      }
+    );
+  }
+
   public static string GetRefreshTokenFromCookie(this HttpContext context)
   {
     return context.Request.Cookies[RefreshTokenCookieName] ?? string.Empty;
diff --git a/src/FiscalOS.Web/src/components/NavSidebar.vue b/src/FiscalOS.Web/src/components/NavSidebar.vue
index 8fe66e5..0ef6351 100644
--- a/src/FiscalOS.Web/src/components/NavSidebar.vue
+++ b/src/FiscalOS.Web/src/components/NavSidebar.vue
@@ -1,106 +1,102 @@
 <script setup lang="ts">
-  import LeftArrowIcon from '@/components/icons/RightArrowIcon.vue';
-  import { useUserStore } from '@/stores/userStore';
-  import { computed } from 'vue';
+import LeftArrowIcon from '@/components/icons/RightArrowIcon.vue';
+import { useAuthService } from '@/composables/useAuthService';
+import { useUserStore } from '@/stores/userStore';
+import { computed } from 'vue';
 import { useRouter } from 'vue-router';
 
-  const userStore = useUserStore();
-  const router = useRouter();
+const userStore = useUserStore();
+const router = useRouter();
+const authService = useAuthService(userStore);
 
-  const asideClasses = computed(() => ({
-    collapsed: userStore.user?.sidebarCollapsed,
-  }));
+const asideClasses = computed(() => ({
+  collapsed: userStore.user?.sidebarCollapsed,
+}));
 
-  function handleToggleButtonClick() {
-    userStore.toggleSidebar();
+function handleToggleButtonClick() {
+  userStore.toggleSidebar();
+}
+
+async function handleLogout() {
+  const logoutResult = await authService.logout();
+
+  if (logoutResult.err) {
+    alert(logoutResult.val.map(e => e.message).join('\n'));
+    return;
   }
 
-  function handleLogout() {
-    // TODO: Also need to log user
-    // out on the server...which is
-    // basically just clearing
-    // refresh token cookie and revoking
-    // it in the database
-    userStore.logUserOut();
-    router.push({ path: '/public/login' });
-  }
+  userStore.logUserOut();
+  router.push({ path: '/public/login' });
+}
 </script>
 
 <template>
   <aside :class="asideClasses">
-    <button
-      @click="handleToggleButtonClick"
-      type="button"
-      class="toggle-button"
-    >
+    <button @click="handleToggleButtonClick" type="button" class="toggle-button">
       <LeftArrowIcon />
     </button>
-    <button
-      class="logout-button"
-      type="button"
-      @click="handleLogout"
-    >
+    <button class="logout-button" type="button" @click="handleLogout">
       Logout
     </button>
   </aside>
 </template>
 
 <style scoped>
+aside {
+  --sidebar-width: 15.625rem;
+  --button-size: 1.5rem;
+  --transition-duration: 0.5s;
+  --transition-function: ease-in-out;
+  position: relative;
+  width: var(--sidebar-width);
+  height: 100%;
+  z-index: 999;
+  background: var(--bg-surface);
+  transition-property: width, transform;
+  transition-duration: var(--transition-duration);
+  transition-timing-function: var(--transition-function);
+}
+
+@media screen and (max-width: 48rem) {
   aside {
-    --sidebar-width: 15.625rem;
-    --button-size: 1.5rem;
-    --transition-duration: 0.5s;
-    --transition-function: ease-in-out;
-    position: relative;
-    width: var(--sidebar-width);
-    height: 100%;
-    z-index: 999;
-    background: var(--bg-surface);
-    transition-property: width, transform;
-    transition-duration: var(--transition-duration);
-    transition-timing-function: var(--transition-function);
-  }
-
-  @media screen and (max-width: 48rem) {
-    aside {
-      position: absolute;
-      right: 0;
-    }
-  }
-
-  .logout-button {
-    background: var(--bg-element);
-    padding: 0.25rem 0.5rem;
-    border-radius: 0.25rem;
-  }
-
-  .toggle-button {
-    display: flex;
-    align-items: center;
-    justify-content: center;
     position: absolute;
-    top: 3rem;
-    left: calc(-1 * var(--button-size) / 2);
-    height: var(--button-size);
-    width: var(--button-size);
-    background: var(--bg-element);
-    border-radius: 50%;
-    transition-property: transform;
-    transition-duration: var(--transition-duration);
-    transition-timing-function: var(--transition-function);
+    right: 0;
   }
+}
 
-  aside.collapsed {
-    width: calc(0.125rem + var(--button-size) / 2);
-  }
+.logout-button {
+  background: var(--bg-element);
+  padding: 0.25rem 0.5rem;
+  border-radius: 0.25rem;
+}
 
-  aside.collapsed .toggle-button {
-    transform: rotate(180deg);
-  }
+.toggle-button {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  position: absolute;
+  top: 3rem;
+  left: calc(-1 * var(--button-size) / 2);
+  height: var(--button-size);
+  width: var(--button-size);
+  background: var(--bg-element);
+  border-radius: 50%;
+  transition-property: transform;
+  transition-duration: var(--transition-duration);
+  transition-timing-function: var(--transition-function);
+}
 
-  .toggle-button svg {
-    --size: 1rem;
-    width: var(--size);
-    height: var(--size);
-  }
+aside.collapsed {
+  width: calc(0.125rem + var(--button-size) / 2);
+}
+
+aside.collapsed .toggle-button {
+  transform: rotate(180deg);
+}
+
+.toggle-button svg {
+  --size: 1rem;
+  width: var(--size);
+  height: var(--size);
+}
 </style>
diff --git a/src/FiscalOS.Web/src/services/authService.ts b/src/FiscalOS.Web/src/services/authService.ts
index b97c27a..9a33274 100644
--- a/src/FiscalOS.Web/src/services/authService.ts
+++ b/src/FiscalOS.Web/src/services/authService.ts
@@ -19,6 +19,7 @@ export class AuthServiceFactory implements IAuthServiceFactory {
 export interface IAuthService {
   login: (username: string, password: string) => Promise<Result<LoginResponse, Error[]>>;
   refreshToken: () => Promise<Result<LoginResponse, Error[]>>;
+  logout: () => Promise<Result<boolean, Error[]>>;
 }
 
 export class AuthService implements IAuthService {
@@ -26,12 +27,30 @@ export class AuthService implements IAuthService {
   private readonly endpoints = {
     login: '/api/auth/login',
     refreshToken: '/api/auth/refresh',
+    logout: '/api/auth/logout',
   };
 
   constructor(client: IClient) {
     this.client = client;
   }
 
+  async logout() {
+    const request = new ClientRequestWithBody(this.endpoints.logout, undefined);
+
+    try {
+      const res = await this.client.post(request);
+
+      if (res.ok === false) {
+        return Err([new Error('Failed to logout. Please try again.')]);
+      }
+
+      return Ok(true);
+    } catch (e) {
+      console.error(e);
+      return Err([new Error('Failed to logout. Please try again.')]);
+    }
+  }
+
   async login(username: string, password: string) {
     const request = new ClientRequestWithBody(
       this.endpoints.login,
diff --git a/tests/FiscalOS.API.Tests/Integration/Auth/LogoutTests.cs b/tests/FiscalOS.API.Tests/Integration/Auth/LogoutTests.cs
new file mode 100644
index 0000000..6c3affe
--- /dev/null
+++ b/tests/FiscalOS.API.Tests/Integration/Auth/LogoutTests.cs
@@ -0,0 +1,76 @@
+using FiscalOS.API.Auth.Login;
+
+namespace FiscalOS.API.Tests.Integration.Auth;
+
+public class LogoutTests(TestApi testApi) : IntegrationTest(testApi)
+{
+  private static readonly Uri LogoutUri = new("/auth/logout", UriKind.Relative);
+  private static readonly Uri LoginUri = new("/auth/login", UriKind.Relative);
+
+  [Fact]
+  public async Task Logout_WhenCalled_ItShouldExpireRefreshTokenCookie()
+  {
+    var user = await Api.ExecuteAsync(static async (context, ct, sp) =>
+    {
+      var passwordHasher = sp.GetRequiredService<IPasswordHasher>();
+      var encryptor = sp.GetRequiredService<IEncryptor>();
+
+      var userEncryptionKey = await encryptor.GenerateEncryptedKeyAsync(ct);
+      var user = User.From("Stevan", passwordHasher.Hash("@Password1"), userEncryptionKey);
+      context.Add(user);
+
+      await context.SaveChangesAsync(ct);
+      return user;
+    }, TestContext.Current.CancellationToken);
+
+    using var loginRequest = HttpRequestBuilder.New()
+      .Post(LoginUri)
+      .WithBody(new
+      {
+        username = "Stevan",
+        password = "@Password1",
+      })
+      .Build();
+
+    var loginResponse = await Client.SendAsync(loginRequest, TestContext.Current.CancellationToken);
+    var setCookieHeaders = loginResponse.Headers.GetValues("Set-Cookie");
+    var refreshTokenCookieHeader = setCookieHeaders.First(h => h.StartsWith("fiscalos_refresh_cookie", StringComparison.OrdinalIgnoreCase));
+    var refreshTokenCookieParts = refreshTokenCookieHeader.Trim().Split("=");
+
+    var accessToken = (await loginResponse.Should().BeJsonContentOfType<Response>(HttpStatusCode.OK))
+      .Which
+      .AccessToken;
+
+    var userRefreshTokens = await Api.ExecuteAsync(async (context, ct) =>
+    {
+      return await context.Set<RefreshToken>()
+      .Where(r => r.UserId == user.Id)
+      .ToListAsync(ct);
+    }, TestContext.Current.CancellationToken);
+
+    userRefreshTokens.Should()
+      .ContainSingle(r => r.IsExpired(DateTimeOffset.UtcNow) == false && r.Revoked == false);
+
+    using var logoutRequest = HttpRequestBuilder.New()
+      .Post(LogoutUri)
+      .WithBearerToken(accessToken)
+      .WithCookie(refreshTokenCookieParts[0], refreshTokenCookieParts[1])
+      .Build();
+
+    var logoutResponse = await Client.SendAsync(logoutRequest, TestContext.Current.CancellationToken);
+
+    logoutResponse.StatusCode.Should().Be(HttpStatusCode.NoContent);
+
+    logoutResponse.Should().HaveSetCookieHeader("fiscalos_refresh_cookie");
+
+    var updatedUserRefreshTokens = await Api.ExecuteAsync(async (context, ct) =>
+    {
+      return await context.Set<RefreshToken>()
+      .Where(r => r.UserId == user.Id)
+      .ToListAsync(ct);
+    }, TestContext.Current.CancellationToken);
+
+    updatedUserRefreshTokens.Should()
+      .ContainSingle(r => r.Revoked && r.IsExpired(DateTimeOffset.UtcNow) == false);
+  }
+}
\ No newline at end of file