diff --git a/alembic/versions/004_add_document_file_sizes.py b/alembic/versions/004_add_document_file_sizes.py
index ce5f27f..dbebb09 100644
--- a/alembic/versions/004_add_document_file_sizes.py
+++ b/alembic/versions/004_add_document_file_sizes.py
@@ -22,16 +22,26 @@ depends_on: Union[str, Sequence[str], None] = None
 
 
 def upgrade() -> None:
-    """Add file_size_bytes column to document tables"""
+    """Add file_size_bytes column to document tables (skip if already exists)"""
+    from sqlalchemy import inspect
 
-    # Add to newsletter_archives
-    op.add_column('newsletter_archives', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
+    conn = op.get_bind()
+    inspector = inspect(conn)
 
-    # Add to financial_reports
-    op.add_column('financial_reports', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
+    # Add to newsletter_archives if missing
+    existing_columns = {col['name'] for col in inspector.get_columns('newsletter_archives')}
+    if 'file_size_bytes' not in existing_columns:
+        op.add_column('newsletter_archives', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
 
-    # Add to bylaws_documents
-    op.add_column('bylaws_documents', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
+    # Add to financial_reports if missing
+    existing_columns = {col['name'] for col in inspector.get_columns('financial_reports')}
+    if 'file_size_bytes' not in existing_columns:
+        op.add_column('financial_reports', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
+
+    # Add to bylaws_documents if missing
+    existing_columns = {col['name'] for col in inspector.get_columns('bylaws_documents')}
+    if 'file_size_bytes' not in existing_columns:
+        op.add_column('bylaws_documents', sa.Column('file_size_bytes', sa.Integer(), nullable=True))
 
 
 def downgrade() -> None:
diff --git a/alembic/versions/005_fix_subscriptions_and_storage.py b/alembic/versions/005_fix_subscriptions_and_storage.py
index 30d5b24..19cef7b 100644
--- a/alembic/versions/005_fix_subscriptions_and_storage.py
+++ b/alembic/versions/005_fix_subscriptions_and_storage.py
@@ -22,26 +22,44 @@ depends_on: Union[str, Sequence[str], None] = None
 
 
 def upgrade() -> None:
-    """Add missing columns and fix naming"""
+    """Add missing columns and fix naming (skip if already exists)"""
+    from sqlalchemy import inspect
 
-    # Add missing columns to subscriptions table
-    op.add_column('subscriptions', sa.Column('start_date', sa.DateTime(timezone=True), nullable=True))
-    op.add_column('subscriptions', sa.Column('end_date', sa.DateTime(timezone=True), nullable=True))
-    op.add_column('subscriptions', sa.Column('amount_paid_cents', sa.Integer(), nullable=True))
-    op.add_column('subscriptions', sa.Column('manual_payment_notes', sa.Text(), nullable=True))
-    op.add_column('subscriptions', sa.Column('manual_payment_admin_id', UUID(as_uuid=True), nullable=True))
-    op.add_column('subscriptions', sa.Column('manual_payment_date', sa.DateTime(timezone=True), nullable=True))
-    op.add_column('subscriptions', sa.Column('payment_method', sa.String(50), nullable=True))
+    conn = op.get_bind()
+    inspector = inspect(conn)
 
-    # Add foreign key for manual_payment_admin_id
-    op.create_foreign_key(
-        'subscriptions_manual_payment_admin_id_fkey',
-        'subscriptions', 'users',
-        ['manual_payment_admin_id'], ['id']
-    )
+    # Check existing columns in subscriptions table
+    existing_columns = {col['name'] for col in inspector.get_columns('subscriptions')}
 
-    # Rename storage_usage.last_calculated_at to last_updated
-    op.alter_column('storage_usage', 'last_calculated_at', new_column_name='last_updated')
+    # Add missing columns to subscriptions table only if they don't exist
+    if 'start_date' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('start_date', sa.DateTime(timezone=True), nullable=True))
+    if 'end_date' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('end_date', sa.DateTime(timezone=True), nullable=True))
+    if 'amount_paid_cents' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('amount_paid_cents', sa.Integer(), nullable=True))
+    if 'manual_payment_notes' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('manual_payment_notes', sa.Text(), nullable=True))
+    if 'manual_payment_admin_id' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('manual_payment_admin_id', UUID(as_uuid=True), nullable=True))
+    if 'manual_payment_date' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('manual_payment_date', sa.DateTime(timezone=True), nullable=True))
+    if 'payment_method' not in existing_columns:
+        op.add_column('subscriptions', sa.Column('payment_method', sa.String(50), nullable=True))
+
+    # Add foreign key for manual_payment_admin_id if it doesn't exist
+    existing_fks = [fk['name'] for fk in inspector.get_foreign_keys('subscriptions')]
+    if 'subscriptions_manual_payment_admin_id_fkey' not in existing_fks:
+        op.create_foreign_key(
+            'subscriptions_manual_payment_admin_id_fkey',
+            'subscriptions', 'users',
+            ['manual_payment_admin_id'], ['id']
+        )
+
+    # Rename storage_usage.last_calculated_at to last_updated (only if needed)
+    storage_columns = {col['name'] for col in inspector.get_columns('storage_usage')}
+    if 'last_calculated_at' in storage_columns and 'last_updated' not in storage_columns:
+        op.alter_column('storage_usage', 'last_calculated_at', new_column_name='last_updated')
 
 
 def downgrade() -> None:
diff --git a/alembic/versions/006_rename_is_active.py b/alembic/versions/006_rename_is_active.py
index dd90a9a..77e669f 100644
--- a/alembic/versions/006_rename_is_active.py
+++ b/alembic/versions/006_rename_is_active.py
@@ -20,8 +20,16 @@ depends_on: Union[str, Sequence[str], None] = None
 
 
 def upgrade() -> None:
-    """Rename is_active to active"""
-    op.alter_column('subscription_plans', 'is_active', new_column_name='active')
+    """Rename is_active to active (skip if already renamed)"""
+    from sqlalchemy import inspect
+
+    conn = op.get_bind()
+    inspector = inspect(conn)
+
+    # Check if rename is needed
+    existing_columns = {col['name'] for col in inspector.get_columns('subscription_plans')}
+    if 'is_active' in existing_columns and 'active' not in existing_columns:
+        op.alter_column('subscription_plans', 'is_active', new_column_name='active')
 
 
 def downgrade() -> None: