diff --git a/docs/IMPLEMENTATION_PLAN.md b/docs/IMPLEMENTATION_PLAN.md
index 59f5e7b..ef7a2c9 100644
--- a/docs/IMPLEMENTATION_PLAN.md
+++ b/docs/IMPLEMENTATION_PLAN.md
@@ -1717,7 +1717,7 @@ public enum CashBookEntryType { Income = 0, Expense = 1 }
 | ✓ | K16 | Application | Excel Export (ClosedXML) | 3 |
 | ✓ | K17 | Application | PDF Export (QuestPDF) | 1 |
 | ✓ | K18 | Web | Export Controller | 1 |
-| ☐ | K19 | Web | Membership Fees Feature | 2 |
+| ✓ | K19 | Web | Membership Fees Feature | 2 |
 | ☐ | K20 | Web | Club Settings Extension | 3 |
 | ☐ | K21 | Web | Navigation Integration | 1 |
 | ☐ | K22 | Tests | Unit Tests | 2 |
diff --git a/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor b/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor
index 27716ef..a3f0191 100644
--- a/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor
+++ b/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor
@@ -69,6 +69,10 @@
             Filtern
         </MudButton>
         <MudSpacer />
+        <MudButton Variant="Variant.Outlined" Color="Color.Info" StartIcon="@Icons.Material.Filled.GroupAdd"
+                   OnClick="OpenMembershipFeeDialog">
+            Mitgliedsbeiträge
+        </MudButton>
         <MudButton Variant="Variant.Filled" Color="Color.Success" StartIcon="@Icons.Material.Filled.Add"
                    OnClick="OpenCreateDialog">
             Neue Buchung
diff --git a/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor.cs b/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor.cs
index bc8d7cb..089e3ac 100644
--- a/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor.cs
+++ b/src/Koogle.Web/Components/Pages/CashBook/CashBook.razor.cs
@@ -114,4 +114,27 @@ public partial class CashBook
             Snackbar.Add("Buchung wird gelöscht...", Severity.Info);
         }
     }
+
+    private async Task OpenMembershipFeeDialog()
+    {
+        // Check if there are existing membership fees for current month
+        var hasExisting = CashBookState.Value.Entries
+            .Any(e => e.CategoryName == "Mitgliedsbeitrag"
+                && e.BookingDate.Month == DateTime.Today.Month
+                && e.BookingDate.Year == DateTime.Today.Year);
+
+        var parameters = new DialogParameters
+        {
+            { "HasExistingFees", hasExisting }
+        };
+
+        var dialog = await DialogService.ShowAsync<MembershipFeeDialog>("Mitgliedsbeiträge erfassen", parameters);
+        var result = await dialog.Result;
+
+        if (result != null && !result.Canceled && result.Data is CreateMembershipFeesDto dto)
+        {
+            Dispatcher.Dispatch(new CreateMembershipFeesAction(dto));
+            Snackbar.Add("Mitgliedsbeiträge werden erstellt...", Severity.Info);
+        }
+    }
 }
diff --git a/src/Koogle.Web/Components/Pages/CashBook/MembershipFeeDialog.razor b/src/Koogle.Web/Components/Pages/CashBook/MembershipFeeDialog.razor
new file mode 100644
index 0000000..73698b6
--- /dev/null
+++ b/src/Koogle.Web/Components/Pages/CashBook/MembershipFeeDialog.razor
@@ -0,0 +1,110 @@
+@using Koogle.Application.DTOs
+
+<MudDialog>
+    <TitleContent>
+        <MudText Typo="Typo.h6">Mitgliedsbeiträge erfassen</MudText>
+    </TitleContent>
+    <DialogContent>
+        <MudText Class="mb-4">
+            Erstellt automatisch Einnahme-Buchungen für alle aktiven Mitglieder.
+        </MudText>
+
+        <MudStack Row="true" Spacing="4" Class="mb-4">
+            <MudSelect T="int" @bind-Value="_selectedMonth" Label="Monat" Style="width: 150px;">
+                @for (int m = 1; m <= 12; m++)
+                {
+                    <MudSelectItem Value="@m">@GetMonthName(m)</MudSelectItem>
+                }
+            </MudSelect>
+            <MudSelect T="int" @bind-Value="_selectedYear" Label="Jahr" Style="width: 120px;">
+                @for (int y = DateTime.Today.Year; y >= DateTime.Today.Year - 2; y--)
+                {
+                    <MudSelectItem Value="@y">@y</MudSelectItem>
+                }
+            </MudSelect>
+        </MudStack>
+
+        <MudSwitch @bind-Value="_useOverride" Label="Betrag überschreiben" Color="Color.Primary" Class="mb-2" />
+
+        @if (_useOverride)
+        {
+            <MudNumericField @bind-Value="_overrideAmount"
+                Label="Beitragshöhe"
+                Format="N2"
+                Adornment="Adornment.Start"
+                AdornmentText="€"
+                Min="0.01m"
+                HelperText="Überschreibt den Standard-Mitgliedsbeitrag"
+                Class="mb-4" />
+        }
+        else
+        {
+            <MudText Typo="Typo.body2" Color="Color.Secondary" Class="mb-4">
+                Es wird der in den Club-Einstellungen hinterlegte Standardbeitrag verwendet.
+            </MudText>
+        }
+
+        @if (_showWarning)
+        {
+            <MudAlert Severity="Severity.Warning" Class="mb-4">
+                Für @GetMonthName(_selectedMonth) @_selectedYear wurden bereits Mitgliedsbeiträge erfasst.
+                Trotzdem fortfahren?
+            </MudAlert>
+        }
+    </DialogContent>
+    <DialogActions>
+        <MudButton OnClick="Cancel">Abbrechen</MudButton>
+        <MudButton Color="Color.Primary" Variant="Variant.Filled" OnClick="Submit">
+            Beiträge erstellen
+        </MudButton>
+    </DialogActions>
+</MudDialog>
+
+@code {
+    [CascadingParameter]
+    private IMudDialogInstance? MudDialog { get; set; }
+
+    [Parameter]
+    public bool HasExistingFees { get; set; }
+
+    private int _selectedMonth = DateTime.Today.Month;
+    private int _selectedYear = DateTime.Today.Year;
+    private bool _useOverride;
+    private decimal _overrideAmount = 10.00m;
+    private bool _showWarning;
+
+    protected override void OnParametersSet()
+    {
+        _showWarning = HasExistingFees;
+    }
+
+    private static string GetMonthName(int month) => month switch
+    {
+        1 => "Januar",
+        2 => "Februar",
+        3 => "März",
+        4 => "April",
+        5 => "Mai",
+        6 => "Juni",
+        7 => "Juli",
+        8 => "August",
+        9 => "September",
+        10 => "Oktober",
+        11 => "November",
+        12 => "Dezember",
+        _ => month.ToString()
+    };
+
+    private void Cancel() => MudDialog?.Cancel();
+
+    private void Submit()
+    {
+        var dto = new CreateMembershipFeesDto
+        {
+            Year = _selectedYear,
+            Month = _selectedMonth,
+            OverrideAmount = _useOverride ? _overrideAmount : null
+        };
+        MudDialog?.Close(DialogResult.Ok(dto));
+    }
+}