diff --git a/EstateManagementUI.BlazorServer.Tests/Pages/Merchants/MerchantsDepositPageTests.cs b/EstateManagementUI.BlazorServer.Tests/Pages/Merchants/MerchantsDepositPageTests.cs
new file mode 100644
index 00000000..5df319bc
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+++ b/EstateManagementUI.BlazorServer.Tests/Pages/Merchants/MerchantsDepositPageTests.cs
@@ -0,0 +1,226 @@
+using AngleSharp.Dom;
+using Bunit;
+using EstateManagementUI.BlazorServer.Common;
+using EstateManagementUI.BlazorServer.Models;
+using EstateManagementUI.BusinessLogic.Requests;
+using Moq;
+using Shouldly;
+using SimpleResults;
+using MerchantsDeposit = EstateManagementUI.BlazorServer.Components.Pages.Merchants.Deposit;
+
+namespace EstateManagementUI.BlazorServer.Tests.Pages.Merchants;
+
+public class MerchantsDepositPageTests : BaseTest
+{
+    private readonly Guid _testMerchantId = Guid.NewGuid();
+
+    [Fact]
+    public void Deposit_RendersCorrectly()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+
+        // Act
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        
+        // Assert
+        cut.Markup.ShouldContain("Make Merchant Deposit");
+    }
+
+    [Fact]
+    public void Deposit_HasCorrectPageTitle()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+
+        // Act
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        
+        // Assert
+        IRenderedComponent<Microsoft.AspNetCore.Components.Web.PageTitle> pageTitle = 
+            cut.FindComponent<Microsoft.AspNetCore.Components.Web.PageTitle>();
+        pageTitle.Instance.ChildContent.ShouldNotBeNull();
+    }
+
+    [Fact]
+    public void Deposit_DisplaysMerchantName()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad("Test Merchant Name");
+
+        // Act
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        cut.WaitForState(() => !cut.Markup.Contains("animate-spin"), TimeSpan.FromSeconds(5));
+        
+        // Assert
+        cut.Markup.ShouldContain("For merchant: Test Merchant Name");
+    }
+
+    [Fact]
+    public void Deposit_DisplaysFormFields()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+
+        // Act
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        cut.WaitForState(() => !cut.Markup.Contains("animate-spin"), TimeSpan.FromSeconds(5));
+        
+        // Assert
+        cut.Markup.ShouldContain("Deposit Amount");
+        cut.Markup.ShouldContain("Date of Deposit");
+        cut.Markup.ShouldContain("Reference");
+        
+        IElement depositAmountInput = cut.Find("#depositAmount");
+        depositAmountInput.ShouldNotBeNull();
+        
+        IElement depositDateInput = cut.Find("#depositDate");
+        depositDateInput.ShouldNotBeNull();
+        
+        IElement depositReferenceInput = cut.Find("#depositReference");
+        depositReferenceInput.ShouldNotBeNull();
+    }
+
+    [Fact]
+    public void Deposit_MakeDepositButton_SubmitsForm()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+        this.MerchantUIService.Setup(m => m.MakeMerchantDeposit(
+            It.IsAny<CorrelationId>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<MerchantModels.DepositModel>()))
+            .ReturnsAsync(Result.Success);
+
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        cut.Instance.SetDelayOverride(0);
+        cut.Render(); // required to trigger re-render
+        cut.WaitForState(() => !cut.Markup.Contains("animate-spin"), TimeSpan.FromSeconds(5));
+
+        // Act - Fill form fields
+        IElement depositAmountInput = cut.Find("#depositAmount");
+        depositAmountInput.Change(100);
+        
+        IElement depositDateInput = cut.Find("#depositDate");
+        depositDateInput.Change(DateTime.Today.ToString("yyyy-MM-dd"));
+        
+        IElement depositReferenceInput = cut.Find("#depositReference");
+        depositReferenceInput.Change("TEST-REF-001");
+
+        // Find and click the Make Deposit button
+        IRefreshableElementCollection<IElement> buttons = cut.FindAll("button");
+        IElement? makeDepositButton = buttons.FirstOrDefault(b => 
+            b.TextContent.Contains("Make Deposit") && 
+            (b.GetAttribute("id") ?? "") == "makeDepositButton");
+        makeDepositButton?.Click();
+        
+        // Assert
+        cut.WaitForAssertion(() => 
+            cut.Markup.ShouldContain("Deposit recorded successfully"), 
+            timeout: TimeSpan.FromSeconds(5));
+        
+        // Verify navigation to merchants index
+        _fakeNavigationManager.Uri.ShouldContain("/merchants");
+    }
+
+    [Fact]
+    public void Deposit_MakeDepositButton_ShowsErrorOnFailure()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+        this.MerchantUIService.Setup(m => m.MakeMerchantDeposit(
+            It.IsAny<CorrelationId>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<MerchantModels.DepositModel>()))
+            .ReturnsAsync(Result.Failure());
+
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        cut.Instance.SetDelayOverride(0);
+        cut.Render(); // required to trigger re-render
+        cut.WaitForState(() => !cut.Markup.Contains("animate-spin"), TimeSpan.FromSeconds(5));
+
+        // Act - Fill form fields
+        IElement depositAmountInput = cut.Find("#depositAmount");
+        depositAmountInput.Change(100);
+        
+        IElement depositDateInput = cut.Find("#depositDate");
+        depositDateInput.Change(DateTime.Today.ToString("yyyy-MM-dd"));
+        
+        IElement depositReferenceInput = cut.Find("#depositReference");
+        depositReferenceInput.Change("TEST-REF-001");
+
+        // Find and click the Make Deposit button
+        IRefreshableElementCollection<IElement> buttons = cut.FindAll("button");
+        IElement? makeDepositButton = buttons.FirstOrDefault(b => 
+            b.TextContent.Contains("Make Deposit") && 
+            (b.GetAttribute("id") ?? "") == "makeDepositButton");
+        makeDepositButton?.Click();
+        
+        // Assert
+        cut.WaitForAssertion(() => 
+            cut.Markup.ShouldContain("Failed to make deposit"), 
+            timeout: TimeSpan.FromSeconds(5));
+    }
+
+    [Fact]
+    public void Deposit_CancelButton_NavigatesToMerchantsIndex()
+    {
+        // Arrange
+        SetupSuccessfulMerchantLoad();
+
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        cut.WaitForState(() => !cut.Markup.Contains("animate-spin"), TimeSpan.FromSeconds(5));
+
+        // Act - Find and click the Cancel button
+        IRefreshableElementCollection<IElement> buttons = cut.FindAll("button");
+        IElement? cancelButton = buttons.FirstOrDefault(b => b.TextContent.Contains("Cancel"));
+        cancelButton?.Click();
+
+        // Assert
+        _fakeNavigationManager.Uri.ShouldContain("/merchants");
+    }
+
+    [Fact]
+    public void Deposit_LoadMerchant_LoadFails_NavigatesToError()
+    {
+        // Arrange
+        this.MerchantUIService.Setup(m => m.GetMerchant(
+            It.IsAny<CorrelationId>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<Guid>()))
+            .ReturnsAsync(Result.Failure());
+
+        // Act
+        IRenderedComponent<MerchantsDeposit> cut = RenderComponent<MerchantsDeposit>(parameters => 
+            parameters.Add(p => p.MerchantId, _testMerchantId));
+        
+        // Assert
+        _fakeNavigationManager.Uri.ShouldContain("error");
+    }
+
+    // Helper methods
+    private void SetupSuccessfulMerchantLoad(string merchantName = "Test Merchant")
+    {
+        MerchantModels.MerchantModel merchant = new()
+        {
+            MerchantId = _testMerchantId,
+            MerchantName = merchantName,
+            MerchantReference = "TEST-REF"
+        };
+
+        this.MerchantUIService.Setup(m => m.GetMerchant(
+            It.IsAny<CorrelationId>(), 
+            It.IsAny<Guid>(), 
+            It.IsAny<Guid>()))
+            .ReturnsAsync(Result.Success(merchant));
+    }
+}