diff --git a/back/Infrastructure/DatabaseContext.cs b/back/Infrastructure/DatabaseContext.cs
index 603765e..051dcb7 100644
--- a/back/Infrastructure/DatabaseContext.cs
+++ b/back/Infrastructure/DatabaseContext.cs
@@ -1,3 +1,4 @@
+using Contracts.DTO;
 using Infrastructure.Models;
 using Microsoft.EntityFrameworkCore;
 
@@ -12,4 +13,5 @@ public class DatabaseContext : DbContext
     }
 
     public DbSet<User> Users { get; set; } = null!;
+    public DbSet<SpendingGroup> SpendingGroups { get; set; } = null!; 
 }
\ No newline at end of file
diff --git a/back/Infrastructure/Models/SpendingGroup.cs b/back/Infrastructure/Models/SpendingGroup.cs
new file mode 100644
index 0000000..b3d5d20
--- /dev/null
+++ b/back/Infrastructure/Models/SpendingGroup.cs
@@ -0,0 +1,10 @@
+namespace Infrastructure.Models;
+
+public class SpendingGroup
+{
+    public Guid Id { get; set; }
+    public string Name { get; set; } = string.Empty;
+
+    public Guid UserId { get; set; }
+    public User User { get; set; } = null!;
+}
\ No newline at end of file
diff --git a/back/Infrastructure/Repositories/SpendingGroupRepo.cs b/back/Infrastructure/Repositories/SpendingGroupRepo.cs
new file mode 100644
index 0000000..38a69d0
--- /dev/null
+++ b/back/Infrastructure/Repositories/SpendingGroupRepo.cs
@@ -0,0 +1,94 @@
+using Contracts.DTO;
+using Contracts.Repositories;
+using Contracts.SearchModels;
+using Infrastructure.Support.Mappers;
+using Microsoft.EntityFrameworkCore;
+
+namespace Infrastructure.Repositories;
+
+public class SpendingGroupRepo : ISpendingGroupRepo
+{
+    public readonly IDbContextFactory<DatabaseContext> _factory;
+
+    public SpendingGroupRepo(IDbContextFactory<DatabaseContext> factory)
+    {
+        _factory = factory;
+    }
+
+    public async Task<SpendingGroupDto> Create(SpendingGroupDto spendingGroup)
+    {
+        using var context = _factory.CreateDbContext();
+
+        var createdGroup = await context.SpendingGroups.AddAsync(spendingGroup.ToModel());
+        await context.SaveChangesAsync();
+        return createdGroup.Entity.ToDto();
+    }
+
+    public async Task<SpendingGroupDto?> Delete(SpendingGroupSearch search)
+    {
+        using var context = _factory.CreateDbContext();
+
+        var group = await context.SpendingGroups
+            .FirstOrDefaultAsync(x => x.Id == search.Id 
+                || x.Name == search.Name);
+        if (group == null)
+        {
+            return null;
+        }
+
+        context.SpendingGroups.Remove(group);
+        await context.SaveChangesAsync();
+        return group.ToDto();
+    }
+
+    public async Task<SpendingGroupDto?> Get(SpendingGroupSearch search)
+    {
+        using var context = _factory.CreateDbContext();
+
+        var group = await context.SpendingGroups
+            .FirstOrDefaultAsync(x => x.Id == search.Id
+                || x.Name == search.Name);
+
+        return group?.ToDto();
+    }
+
+    public async Task<IEnumerable<SpendingGroupDto>> GetList(SpendingGroupSearch? search = null)
+    {
+        using var context = _factory.CreateDbContext();
+
+        var query = context.SpendingGroups.AsQueryable();
+
+        if (search != null)
+        {
+            if (search.Id != null)
+            {
+                query = query.Where(x => x.Id == search.Id);
+            }
+
+            if (!string.IsNullOrWhiteSpace(search.Name))
+            {
+                query = query.Where(x => x.Name.Contains(search.Name, StringComparison.OrdinalIgnoreCase));
+            }
+        }
+
+        return await query.Select(x => x.ToDto()).ToListAsync();
+    }
+
+    public async Task<SpendingGroupDto?> Update(SpendingGroupDto spendingGroup)
+    {
+        using var context = _factory.CreateDbContext();
+
+        var existingGroup = await context.SpendingGroups
+            .FirstOrDefaultAsync(x => x.Id == spendingGroup.Id);
+
+        if (existingGroup == null)
+        {
+            return null;
+        }
+
+        existingGroup.Name = spendingGroup.Name;
+        context.SpendingGroups.Update(existingGroup);
+        await context.SaveChangesAsync();
+        return existingGroup.ToDto();
+    }
+}
diff --git a/back/Infrastructure/Support/Mappers/SpendingGroupMapper.cs b/back/Infrastructure/Support/Mappers/SpendingGroupMapper.cs
new file mode 100644
index 0000000..94a39b6
--- /dev/null
+++ b/back/Infrastructure/Support/Mappers/SpendingGroupMapper.cs
@@ -0,0 +1,22 @@
+using Contracts.DTO;
+using Infrastructure.Models;
+
+namespace Infrastructure.Support.Mappers;
+
+public static class SpendingGroupMapper
+{
+    public static SpendingGroupDto ToDto(this SpendingGroup group) 
+        => new() 
+        {
+            Id = group.Id,
+            Name = group.Name,
+            UserId = group.UserId
+        };
+    public static SpendingGroup ToModel(this SpendingGroupDto group) 
+        => new() 
+        {
+            Id = group.Id,
+            Name = group.Name,
+            UserId = group.UserId
+        };
+}
\ No newline at end of file