diff --git a/Marco.Pms.Services/Controllers/MasterController.cs b/Marco.Pms.Services/Controllers/MasterController.cs
index 0f34a05..3f00d2e 100644
--- a/Marco.Pms.Services/Controllers/MasterController.cs
+++ b/Marco.Pms.Services/Controllers/MasterController.cs
@@ -882,6 +882,13 @@ namespace Marco.Pms.Services.Controllers
             var response = await _masterService.CreateExpenseTypeAsync(dto, loggedInEmployee, tenantId);
             return StatusCode(response.StatusCode, response);
         }
+        [HttpPut("expenses-type/edit/{id}")]
+        public async Task<IActionResult> UpdateExpenseType(Guid id, ExpensesTypeMasterDto dto)
+        {
+            var loggedInEmployee = await _userHelper.GetCurrentEmployeeAsync();
+            var response = await _masterService.UpdateExpenseTypeAsync(id, dto, loggedInEmployee, tenantId);
+            return StatusCode(response.StatusCode, response);
+        }
 
         #endregion
 
diff --git a/Marco.Pms.Services/Service/MasterService.cs b/Marco.Pms.Services/Service/MasterService.cs
index 919ccdc..a03c8ef 100644
--- a/Marco.Pms.Services/Service/MasterService.cs
+++ b/Marco.Pms.Services/Service/MasterService.cs
@@ -1,12 +1,15 @@
 using AutoMapper;
 using Marco.Pms.DataAccess.Data;
+using Marco.Pms.Helpers.Utility;
 using Marco.Pms.Model.Dtos.Master;
 using Marco.Pms.Model.Employees;
 using Marco.Pms.Model.Entitlements;
 using Marco.Pms.Model.Expenses;
 using Marco.Pms.Model.Master;
+using Marco.Pms.Model.MongoDBModels.Utility;
 using Marco.Pms.Model.Utilities;
 using Marco.Pms.Model.ViewModels.Master;
+using Marco.Pms.Services.Helpers;
 using Marco.Pms.Services.Service.ServiceInterfaces;
 using MarcoBMS.Services.Service;
 using Microsoft.EntityFrameworkCore;
@@ -19,17 +22,23 @@ namespace Marco.Pms.Services.Service
         private readonly ILoggingService _logger;
         private readonly PermissionServices _permission;
         private readonly IMapper _mapper;
+        private readonly UtilityMongoDBHelper _updateLogHelper;
+        private readonly CacheUpdateHelper _cache;
 
         public MasterService(
             ApplicationDbContext context,
             ILoggingService logger,
             PermissionServices permission,
-            IMapper mapper)
+            IMapper mapper,
+            UtilityMongoDBHelper updateLogHelper,
+            CacheUpdateHelper cache)
         {
             _context = context;
             _logger = logger;
             _permission = permission;
             _mapper = mapper;
+            _updateLogHelper = updateLogHelper;
+            _cache = cache;
         }
 
         #region =================================================================== Expenses Type APIs ===================================================================
@@ -97,6 +106,77 @@ namespace Marco.Pms.Services.Service
                 return ApiResponse<object>.ErrorResponse("Internal Error occured", ExceptionMapper(ex), 500);
             }
         }
+        public async Task<ApiResponse<object>> UpdateExpenseTypeAsync(Guid id, ExpensesTypeMasterDto model, Employee loggedInEmployee, Guid tenantId)
+        {
+            try
+            {
+                // Validation if employee is taking action in same tenant
+                if (tenantId != loggedInEmployee.TenantId)
+                {
+                    _logger.LogWarning("Employee {EmployeeId} attempted to update expense type in different tenant", loggedInEmployee.Id);
+                    return ApiResponse<object>.ErrorResponse("Access Denied", "User do not have access for this information", 403);
+                }
+
+                // Checking permssion for managing masters
+                var hasManagePermission = await _permission.HasPermission(PermissionsMaster.ManageMasters, loggedInEmployee.Id);
+                if (!hasManagePermission)
+                {
+                    _logger.LogWarning("Access DENIED for employee {EmployeeId} for managing EXPANSES TYPE MASTER.", loggedInEmployee.Id);
+                    return ApiResponse<object>.ErrorResponse("Access Denied.", "You do not have permission to Upload expenses for this project", 403);
+                }
+
+                // Validating the prvided data
+                if (model.Id != id)
+                {
+                    _logger.LogWarning("Employee {EmployeeId} provide different Ids in payload and path variable", loggedInEmployee.Id);
+                    return ApiResponse<object>.ErrorResponse("Invalid Data", "User has send invalid payload", 400);
+                }
+
+                var expensesType = await _context.ExpensesTypeMaster.AsNoTracking().FirstOrDefaultAsync(et => et.Id == model.Id.Value && et.TenantId == tenantId);
+
+                // Checking if expense type exists
+                if (expensesType == null)
+                {
+                    _logger.LogWarning("Employee {EmployeeId} tries to update expense type, but not found in database", loggedInEmployee.Id);
+                    return ApiResponse<object>.ErrorResponse("Expense Type not found", "Expense Type not found", 404);
+                }
+
+                // Mapping ExpensesTypeMaster to BsonDocument
+                var existingEntityBson = _updateLogHelper.EntityToBsonDocument(expensesType);
+
+                // Mapping ExpensesTypeMasterDto to ExpensesTypeMaster
+                _mapper.Map(model, expensesType);
+
+                _context.ExpensesTypeMaster.Update(expensesType);
+                await _context.SaveChangesAsync();
+
+                _logger.LogInfo("New Expense Type {ExpensesTypeId} was updated by employee {EmployeeId}", expensesType.Id, loggedInEmployee.Id);
+
+                // Saving the old entity in mongoDB
+
+                var mongoDBTask = _updateLogHelper.PushToUpdateLogsAsync(new UpdateLogsObject
+                {
+                    EntityId = expensesType.Id.ToString(),
+                    UpdatedById = loggedInEmployee.Id.ToString(),
+                    OldObject = existingEntityBson,
+                    UpdatedAt = DateTime.UtcNow
+                }, "ExpensesTypeMasterModificationLog");
+
+                // Mapping ExpensesTypeMaster to ExpensesTypeMasterVM
+                var response = _mapper.Map<ExpensesTypeMasterVM>(expensesType);
+                return ApiResponse<object>.SuccessResponse(response, "Expense type updated Successfully", 200);
+            }
+            catch (DbUpdateException dbEx)
+            {
+                _logger.LogError(dbEx, "Database Exception occured while updating expense type by employee {EmployeeId}", loggedInEmployee.Id);
+                return ApiResponse<object>.ErrorResponse("Internal Error occured", ExceptionMapper(dbEx), 500);
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Exception occured while updating expense type by employee {EmployeeId}", loggedInEmployee.Id);
+                return ApiResponse<object>.ErrorResponse("Internal Error occured", ExceptionMapper(ex), 500);
+            }
+        }
 
         #endregion
 
diff --git a/Marco.Pms.Services/Service/ServiceInterfaces/IMasterService.cs b/Marco.Pms.Services/Service/ServiceInterfaces/IMasterService.cs
index 7269ee0..67217c4 100644
--- a/Marco.Pms.Services/Service/ServiceInterfaces/IMasterService.cs
+++ b/Marco.Pms.Services/Service/ServiceInterfaces/IMasterService.cs
@@ -9,6 +9,7 @@ namespace Marco.Pms.Services.Service.ServiceInterfaces
         #region =================================================================== Expenses Type APIs ===================================================================
         Task<ApiResponse<object>> GetExpenseTypeListAsync(Employee loggedInEmployee, Guid tenantId);
         Task<ApiResponse<object>> CreateExpenseTypeAsync(ExpensesTypeMasterDto model, Employee loggedInEmployee, Guid tenantId);
+        Task<ApiResponse<object>> UpdateExpenseTypeAsync(Guid id, ExpensesTypeMasterDto model, Employee loggedInEmployee, Guid tenantId);
 
         #endregion
         #region =================================================================== Expenses Status APIs ===================================================================