diff --git a/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.Designer.cs b/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.Designer.cs
new file mode 100644
index 0000000..fc60907
--- /dev/null
+++ b/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.Designer.cs
@@ -0,0 +1,134 @@
+// <auto-generated />
+using System;
+using Infrastructure;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Infrastructure.Migrations
+{
+    [DbContext(typeof(DatabaseContext))]
+    [Migration("20241126185002_AddChangeRecord")]
+    partial class AddChangeRecord
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "9.0.0")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Infrastructure.Models.ChangeRecord", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("ChangedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("SpendingGroupId")
+                        .HasColumnType("uuid");
+
+                    b.Property<decimal>("Sum")
+                        .HasColumnType("numeric");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SpendingGroupId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("ChangeRecords");
+                });
+
+            modelBuilder.Entity("Infrastructure.Models.SpendingGroup", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("SpendingGroups");
+                });
+
+            modelBuilder.Entity("Infrastructure.Models.User", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<decimal>("Balance")
+                        .HasColumnType("numeric");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Infrastructure.Models.ChangeRecord", b =>
+                {
+                    b.HasOne("Infrastructure.Models.SpendingGroup", "SpendingGroup")
+                        .WithMany()
+                        .HasForeignKey("SpendingGroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Infrastructure.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("SpendingGroup");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Infrastructure.Models.SpendingGroup", b =>
+                {
+                    b.HasOne("Infrastructure.Models.User", "User")
+                        .WithMany("SpendingGroups")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("Infrastructure.Models.User", b =>
+                {
+                    b.Navigation("SpendingGroups");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.cs b/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.cs
new file mode 100644
index 0000000..0f8a61d
--- /dev/null
+++ b/back/Infrastructure/Migrations/20241126185002_AddChangeRecord.cs
@@ -0,0 +1,59 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddChangeRecord : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "ChangeRecords",
+                columns: table => new
+                {
+                    Id = table.Column<Guid>(type: "uuid", nullable: false),
+                    Sum = table.Column<decimal>(type: "numeric", nullable: false),
+                    ChangedAt = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    UserId = table.Column<Guid>(type: "uuid", nullable: false),
+                    SpendingGroupId = table.Column<Guid>(type: "uuid", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ChangeRecords", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ChangeRecords_SpendingGroups_SpendingGroupId",
+                        column: x => x.SpendingGroupId,
+                        principalTable: "SpendingGroups",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ChangeRecords_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ChangeRecords_SpendingGroupId",
+                table: "ChangeRecords",
+                column: "SpendingGroupId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ChangeRecords_UserId",
+                table: "ChangeRecords",
+                column: "UserId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ChangeRecords");
+        }
+    }
+}
diff --git a/back/Infrastructure/Migrations/DatabaseContextModelSnapshot.cs b/back/Infrastructure/Migrations/DatabaseContextModelSnapshot.cs
index 201a211..82c6874 100644
--- a/back/Infrastructure/Migrations/DatabaseContextModelSnapshot.cs
+++ b/back/Infrastructure/Migrations/DatabaseContextModelSnapshot.cs
@@ -22,6 +22,33 @@ namespace Infrastructure.Migrations
 
             NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
 
+            modelBuilder.Entity("Infrastructure.Models.ChangeRecord", b =>
+                {
+                    b.Property<Guid>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<DateTime>("ChangedAt")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<Guid>("SpendingGroupId")
+                        .HasColumnType("uuid");
+
+                    b.Property<decimal>("Sum")
+                        .HasColumnType("numeric");
+
+                    b.Property<Guid>("UserId")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("SpendingGroupId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("ChangeRecords");
+                });
+
             modelBuilder.Entity("Infrastructure.Models.SpendingGroup", b =>
                 {
                     b.Property<Guid>("Id")
@@ -64,6 +91,25 @@ namespace Infrastructure.Migrations
                     b.ToTable("Users");
                 });
 
+            modelBuilder.Entity("Infrastructure.Models.ChangeRecord", b =>
+                {
+                    b.HasOne("Infrastructure.Models.SpendingGroup", "SpendingGroup")
+                        .WithMany()
+                        .HasForeignKey("SpendingGroupId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("Infrastructure.Models.User", "User")
+                        .WithMany()
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("SpendingGroup");
+
+                    b.Navigation("User");
+                });
+
             modelBuilder.Entity("Infrastructure.Models.SpendingGroup", b =>
                 {
                     b.HasOne("Infrastructure.Models.User", "User")