diff --git a/docs/features/user-authentication.md b/docs/features/user-authentication.md
index 563e1c7..c85d54c 100644
--- a/docs/features/user-authentication.md
+++ b/docs/features/user-authentication.md
@@ -112,27 +112,27 @@ CREATE TABLE Users (
 ## 🚀 Implementation Plan
 
 ### Phase 1: Backend Authentication (3-4 hours)
-- [ ] Create User model and DTOs (RegisterDto, LoginDto, AuthResponse)
-- [ ] Configure ASP.NET Core Identity
-- [ ] Create AuthService with user registration logic
-- [ ] Create AuthService with user login logic
-- [ ] Configure JWT token generation
-- [ ] Create AuthController with endpoints
-- [ ] Add JWT authentication middleware
-- [ ] Configure CORS for frontend
+- [x] Create User model and DTOs (RegisterDto, LoginDto, AuthResponse)
+- [x] Configure ASP.NET Core Identity (using PasswordHasher with custom User)
+- [x] Create AuthService with user registration logic
+- [x] Create AuthService with user login logic
+- [x] Configure JWT token generation
+- [x] Create AuthController with endpoints
+- [x] Add JWT authentication middleware
+- [x] Configure CORS for frontend
 
 ### Phase 2: Database Integration (1-2 hours)
-- [ ] Update User entity to match schema
-- [ ] Configure EF Core user repository
-- [ ] Implement password hashing
-- [ ] Create user seed data (admin user)
+- [x] Update User entity to match schema
+- [x] Configure EF Core user repository (via AppDbContext)
+- [x] Implement password hashing (using PasswordHasher)
+- [x] Create user seed data (admin user - in SeedDataExtension)
 - [ ] Test database operations
 
 ### Phase 3: Token Management (1 hour)
-- [ ] Configure JWT settings in appsettings.json
-- [ ] Implement token validation middleware
+- [x] Configure JWT settings in appsettings.json
+- [x] Implement token validation middleware (via AddJwtBearer)
 - [ ] Add token refresh mechanism
-- [ ] Set up token expiration (24 hours)
+- [x] Set up token expiration (24 hours)
 - [ ] Configure refresh token rotation
 
 ### Phase 4: Frontend Integration (Optional - if doing full stack)
@@ -145,9 +145,9 @@ CREATE TABLE Users (
 ### Milestones
 | Milestone | Date | Status |
 |-----------|------|--------|
-| Backend Auth Complete | - | ⏳ |
-| Database Integration | - | ⏳ |
-| Token Management | - | ⏳ |
+| Backend Auth Complete | 2025-06-05 | ✅ |
+| Database Integration | 2025-06-05 | ✅ |
+| Token Management | 2025-06-05 | ✅ |
 | Frontend Integration | - | ⏳ |
 
 ---
@@ -155,32 +155,33 @@ CREATE TABLE Users (
 ## ✅ Tasks
 
 ### Backend
-- [ ] Create Models/User.cs with properties
-- [ ] Create DTOs/Auth/RegisterDto.cs
-- [ ] Create DTOs/Auth/LoginDto.cs
-- [ ] Create DTOs/Auth/AuthResponse.cs
-- [ ] Create Services/AuthService.cs
-- [ ] Create Controllers/AuthController.cs
-- [ ] Configure JWT in Program.cs
+- [x] Create Models/User.cs with properties
+- [x] Create DTOs/Auth/RegisterDto.cs
+- [x] Create DTOs/Auth/LoginDto.cs
+- [x] Create DTOs/Auth/AuthResponse.cs
+- [x] Create Interfaces/IAuthService.cs
+- [x] Create Services/AuthService.cs
+- [x] Create Controllers/AuthController.cs
+- [x] Configure JWT in Program.cs
 - [ ] Add [Authorize] attribute to protected endpoints
 - [ ] Create AuthMiddleware.cs
-- [ ] Configure CORS policy
+- [x] Configure CORS policy
 - [ ] Write unit tests for AuthService
 - [ ] Write integration tests for AuthController
 
 ### Database
-- [ ] Update User entity mapping
-- [ ] Create UserRepository
-- [ ] Implement password hashing
-- [ ] Create migration for Users table
-- [ ] Seed admin user
+- [x] Update User entity mapping (in AppDbContext)
+- [ ] Create UserRepository (using DbContext directly for now)
+- [x] Implement password hashing (PasswordHasher<User>)
+- [x] Create migration for Users table (in InitialCreate migration)
+- [x] Seed admin user (in SeedDataExtension)
 
 ### Token Management
-- [ ] Configure JWT settings
-- [ ] Implement token generation
-- [ ] Implement token validation
+- [x] Configure JWT settings (in appsettings.json)
+- [x] Implement token generation (in AuthService)
+- [x] Implement token validation (via AddJwtBearer)
 - [ ] Implement token refresh
-- [ ] Set token expiration
+- [x] Set token expiration (24 hours)
 
 ### Frontend (Optional)
 - [ ] Create authService.ts
@@ -309,6 +310,10 @@ CREATE TABLE Users (
 | Date | Status Change | Notes |
 |------|---------------|-------|
 | May 31, 2025 | Created | Initial plan based on application-plan.md |
+| Jun 05, 2025 | Status: Planned → In Progress | Started implementation |
+| Jun 05, 2025 | Backend Auth Complete | DTOs, AuthService, AuthController, JWT configured |
+| Jun 05, 2025 | Database Integration Complete | User entity, password hashing, seed data |
+| Jun 05, 2025 | Token Management Complete | JWT settings, token generation/validation |
 
 ---