diff --git a/.gitignore b/.gitignore
index d13abc0..627ba0f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -139,3 +139,4 @@ vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
 
 prisma/generated/
+.vercel
diff --git a/src/controller/user.ts b/src/controller/user.ts
index cab144e..9693dd1 100644
--- a/src/controller/user.ts
+++ b/src/controller/user.ts
@@ -43,7 +43,7 @@ export const login = async (req: Request, res: Response) => {
       return;
     }
     const session = await sessionModel.create(user.id);
-    new CookieResponse(res).setCookie("session", session.id);
+    response.setCookie("session", session.id);
     response.created({ message: "Usuário autenticado!" });
   } catch (error) {
     console.error("Erro insperado ao efetuar login: ", error);
@@ -51,6 +51,31 @@ export const login = async (req: Request, res: Response) => {
   }
 };
 
+export const logout = async (req: Request, res: Response) => {
+  const response = new CookieResponse(res);
+  const sessionId = req.cookies.session;
+  if (!sessionId) {
+    response.unauthorized("Faça o login.");
+    return;
+  }
+  try {
+    response.clearCookie("session");
+    const isLogouted = await sessionModel.invalidate(sessionId);
+    if (!isLogouted) {
+      response.unauthorized(
+        "Verifique se está logado e tente novamente.",
+        "Sessão expirada.",
+      );
+      return;
+    }
+
+    response.success({ message: "Sessão encerrada!" });
+  } catch (error) {
+    console.error("Erro insperado para realizar o logout: ", error);
+    response.internalServerError();
+  }
+};
+
 export const getUser = async (
   req: Request,
   res: Response,
diff --git a/src/models/customResponse.ts b/src/models/customResponse.ts
index 7d06c61..df665c0 100644
--- a/src/models/customResponse.ts
+++ b/src/models/customResponse.ts
@@ -6,7 +6,7 @@ export class CustomResponse {
     this.response = response;
   }
 
-  errorHandler(error: any) {
+  private errorHandler(error: any) {
     if (error.name === "ZodError") {
       const { issues } = error;
       return setErrorMessage(issues);
diff --git a/src/models/session.ts b/src/models/session.ts
index 8b27bd8..c9f8924 100644
--- a/src/models/session.ts
+++ b/src/models/session.ts
@@ -2,7 +2,7 @@ import { randomUUID } from "node:crypto";
 import { env } from "~/config/env.js";
 import { prisma } from "~/infra/database.js";
 import { BaseModel } from "./base.js";
-import { UserDelegate, UserSessionDelegate } from "@/generated/models.js";
+import { UserSessionDelegate } from "@/generated/models.js";
 import { userModel, UserModelClass } from "./user.js";
 
 export type AuthenticatedUser = {
@@ -30,11 +30,15 @@ class SessionModel extends BaseModel<UserSessionDelegate> {
     this.userModel = userModel;
   }
 
-  async create(user_id: string): Promise<UserSession> {
-    const id = randomUUID();
+  private getExpiresAt() {
     const now = new Date();
     const expires_at = new Date(now.getTime() + env.INACTIVITY_TIMEOUT);
+    return { now, expires_at };
+  }
 
+  async create(user_id: string): Promise<UserSession> {
+    const id = randomUUID();
+    const { now, expires_at } = this.getExpiresAt();
     return await this.createOne({
       id,
       user_id,
@@ -43,22 +47,33 @@ class SessionModel extends BaseModel<UserSessionDelegate> {
     });
   }
 
-  async validate(sessionId: string): Promise<AuthenticatedUser | false> {
+  async findOneValid(sessionId: string): Promise<UserSession | false> {
     const sessionObject: UserSession = await this.findUnique({
       where: { id: sessionId },
     });
-    if (!sessionObject) return false;
 
-    const user = await this.userModel.findOne(sessionObject.user_id);
-    if (!user) return false;
+    if (!sessionObject) return false;
 
     const now = new Date();
-    const lastActive = new Date(String(sessionObject.last_active_at));
+    const isExceededTime = now.getTime() > sessionObject.expires_at.getTime();
+
+    if (isExceededTime) return false;
 
-    if (now.getTime() - lastActive.getTime() > env.INACTIVITY_TIMEOUT)
-      return false;
+    return sessionObject;
+  }
+
+  async validate(sessionId: string): Promise<AuthenticatedUser | false> {
+    const sessionObject = await this.findOneValid(sessionId);
+    if (!sessionObject) return false;
 
-    await this.updateOne({ id: sessionId }, { last_active_at: now });
+    const { now, expires_at } = this.getExpiresAt();
+    await this.updateOne(
+      { id: sessionId },
+      { last_active_at: now, expires_at },
+    );
+
+    const user = await this.userModel.findOne(sessionObject.user_id);
+    if (!user) return false;
 
     const { email, id, name, created_at, updated_at } = user;
     const secureObjectValue: AuthenticatedUser = {
@@ -70,6 +85,14 @@ class SessionModel extends BaseModel<UserSessionDelegate> {
     };
     return secureObjectValue;
   }
+
+  async invalidate(sessionId: string) {
+    const sessionObject = await this.findOneValid(sessionId);
+    if (!sessionObject) return false;
+
+    await this.updateOne({ id: sessionId }, { expires_at: new Date() });
+    return true;
+  }
 }
 
 export const sessionModel = new SessionModel(prisma.userSession, userModel);
diff --git a/src/router/router.ts b/src/router/router.ts
index d0923fe..12ca621 100644
--- a/src/router/router.ts
+++ b/src/router/router.ts
@@ -10,8 +10,9 @@ const router = Router();
 router.get("/", index);
 
 router.post("/login", userCtrl.login);
-router.post("/user", userCtrl.register);
 router.get("/user", userCtrl.getUser);
+router.post("/user", userCtrl.register);
+router.delete("/user", userCtrl.logout);
 
 router.get("/tasks", authenticate, taskCtrl.getAllTasks);
 router.get("/tasks/:id", authenticate, taskCtrl.getOneTask);
diff --git a/tests/controller/user/delete.test.ts b/tests/controller/user/delete.test.ts
new file mode 100644
index 0000000..21cbb95
--- /dev/null
+++ b/tests/controller/user/delete.test.ts
@@ -0,0 +1,109 @@
+import { API, createSession, createUser } from "$/orchestrator.js";
+import { env } from "~/config/env.js";
+
+describe("DELETE `/user`", () => {
+  describe("Usuário anônimo", () => {
+    test("Tentando fazer a request", async () => {
+      const response = await fetch(API.user, {
+        method: "DELETE",
+      });
+
+      expect(response.ok).toBe(false);
+      expect(response.status).toBe(401);
+
+      const responseBody = await response.json();
+      expect(responseBody).toEqual({
+        action: "Faça o login.",
+        message: "Não autorizado.",
+      });
+    });
+  });
+
+  describe("Usuário padrão", () => {
+    test("Com sessão válida", async () => {
+      const defaultUser = await createUser();
+      const defaultSession = await createSession(defaultUser);
+
+      const response = await fetch(API.user, {
+        method: "DELETE",
+        headers: {
+          Cookie: `session=${defaultSession.id}`,
+        },
+      });
+
+      expect(response.ok).toBe(true);
+      expect(response.status).toBe(200);
+
+      const responseBody = await response.json();
+      expect(responseBody).toEqual({ message: "Sessão encerrada!" });
+    });
+
+    test("Com sessão quase expirada", async () => {
+      const horaAtual = new Date();
+      const horaSessaoExpirada = new Date(
+        horaAtual.getTime() - env.INACTIVITY_TIMEOUT / 2,
+      );
+      vi.setSystemTime(horaSessaoExpirada);
+
+      const newUser = await createUser();
+      const almostExpiredSession = await createSession(newUser);
+
+      vi.useRealTimers();
+      const response = await fetch(API.user, {
+        method: "DELETE",
+        headers: {
+          Cookie: `session=${almostExpiredSession.id}`,
+        },
+      });
+
+      expect(response.ok).toBe(true);
+      expect(response.status).toBe(200);
+
+      const responseBody = await response.json();
+      expect(responseBody).toEqual({ message: "Sessão encerrada!" });
+    });
+
+    test("Com sessão expirada", async () => {
+      const horaAtual = new Date();
+      const horaSessaoExpirada = new Date(
+        horaAtual.getTime() - env.INACTIVITY_TIMEOUT,
+      );
+      vi.setSystemTime(horaSessaoExpirada);
+
+      const newUser = await createUser();
+      const expiredSession = await createSession(newUser);
+
+      vi.useRealTimers();
+      const response = await fetch(API.user, {
+        method: "DELETE",
+        headers: {
+          Cookie: `session=${expiredSession.id}`,
+        },
+      });
+
+      expect(response.ok).toBe(false);
+      expect(response.status).toBe(401);
+
+      const responseBody = await response.json();
+      expect(responseBody).toEqual({
+        action: "Verifique se está logado e tente novamente.",
+        message: "Sessão expirada.",
+      });
+
+      const response2 = await fetch(API.user, {
+        headers: {
+          Cookie: `session=${expiredSession.id}`,
+        },
+      });
+
+      expect(response.ok).toBe(false);
+      expect(response.status).toBe(401);
+
+      const response2Body = await response2.json();
+      expect(response2Body).toEqual({
+        action: "Por favor, realize o login novamente.",
+        message: "Sessão inválida ou expirada.",
+      });
+    });
+  });
+});