diff --git a/app/models/offer.py b/app/models/offer.py
index 5050623..217f6c8 100644
--- a/app/models/offer.py
+++ b/app/models/offer.py
@@ -12,6 +12,10 @@ class Offer(db.Model):
     max_amount = db.Column(db.Float, nullable=False)
     tenor = db.Column(db.Integer, nullable=False)
     schedule = db.Column(db.Integer, nullable=True)
+    interest_rate = db.Column(db.Float, default=3.0)
+    management_rate = db.Column(db.Float, default=1.0)
+    insurance_rate = db.Column(db.Float, default=1.0)
+    vat_rate = db.Column(db.Float, default=7.5)
     list_order = db.Column(db.Integer, nullable=True)
     created_at = db.Column(db.DateTime, default=datetime.now(timezone.utc))
     updated_at = db.Column(db.DateTime, default=datetime.now(timezone.utc), onupdate=datetime.now(timezone.utc))
diff --git a/migrations/versions/89759cebb9c6_migration_on_sat_apr_26_12_50_46_utc_.py b/migrations/versions/89759cebb9c6_migration_on_sat_apr_26_12_50_46_utc_.py
new file mode 100644
index 0000000..3c33c55
--- /dev/null
+++ b/migrations/versions/89759cebb9c6_migration_on_sat_apr_26_12_50_46_utc_.py
@@ -0,0 +1,38 @@
+"""Migration on Sat Apr 26 12:50:46 UTC 2025
+
+Revision ID: 89759cebb9c6
+Revises: 2a45dd99c9cb
+Create Date: 2025-04-26 12:50:49.771355
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '89759cebb9c6'
+down_revision = '2a45dd99c9cb'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('offers', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('interest_rate', sa.Float(), nullable=True))
+        batch_op.add_column(sa.Column('management_rate', sa.Float(), nullable=True))
+        batch_op.add_column(sa.Column('insurance_rate', sa.Float(), nullable=True))
+        batch_op.add_column(sa.Column('vat_rate', sa.Float(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('offers', schema=None) as batch_op:
+        batch_op.drop_column('vat_rate')
+        batch_op.drop_column('insurance_rate')
+        batch_op.drop_column('management_rate')
+        batch_op.drop_column('interest_rate')
+
+    # ### end Alembic commands ###