diff --git a/src/core/DigitalData.TaskFlow.Application/Features/Workflows/Commands/CloseWorkflowCommandHandler.cs b/src/core/DigitalData.TaskFlow.Application/Features/Workflows/Commands/CloseWorkflowCommandHandler.cs
new file mode 100644
index 0000000..9384e50
--- /dev/null
+++ b/src/core/DigitalData.TaskFlow.Application/Features/Workflows/Commands/CloseWorkflowCommandHandler.cs
@@ -0,0 +1,32 @@
+using DigitalData.TaskFlow.Application.Common.Interfaces;
+using MediatR;
+
+namespace DigitalData.TaskFlow.Application.Features.Workflows.Commands;
+
+public sealed class CloseWorkflowCommandHandler(IWorkflowRepository repo)
+    : IRequestHandler<CloseWorkflowCommand, CloseWorkflowResult>
+{
+    public async Task<CloseWorkflowResult> Handle(
+        CloseWorkflowCommand request,
+        CancellationToken cancellationToken)
+    {
+        var procedureResult = await repo.CloseAsync(
+            userId: request.WisagId,
+            source: request.Source,
+            processId: request.ProcessId,
+            closingMethodId: request.ClosingMethodId,
+            comment: request.Comment,
+            rejectionReasonId: request.RejectionReasonId,
+            cancellationToken: cancellationToken);
+
+        if (procedureResult?.Code is null)
+        {
+            throw new InvalidOperationException(
+                "Stored procedure returned an invalid close result.");
+        }
+
+        return new CloseWorkflowResult(
+            ResultCode: procedureResult.Code.Value,
+            ResultMessage: procedureResult.Result ?? string.Empty);
+    }
+}