From 1cb0b5ddfeece51d33227009b25dedaa391aba71 Mon Sep 17 00:00:00 2001
From: Leopoldadmin <leopold.hammerschmidt@media-on.de>
Date: Sat, 4 Jul 2026 00:23:13 +0000
Subject: [PATCH] feat(core): add TaxRate model

---
 app/models/tax.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 app/models/tax.py

diff --git a/app/models/tax.py b/app/models/tax.py
new file mode 100644
index 0000000..d2acc6f
--- /dev/null
+++ b/app/models/tax.py
@@ -0,0 +1,31 @@
+"""Tax rate model — ERP tax configuration."""
+
+from __future__ import annotations
+
+import uuid
+from datetime import datetime
+
+from sqlalchemy import Boolean, DateTime, Index, Numeric, String
+from sqlalchemy.dialects.postgresql import UUID as PGUUID
+from sqlalchemy.orm import Mapped, mapped_column
+
+from app.core.db import Base, TenantMixin
+
+
+class TaxRate(Base, TenantMixin):
+    """Tax rate entity — e.g. 'Mehrwertsteuer 19%'."""
+
+    __tablename__ = "tax_rates"
+    __table_args__ = (
+        Index("ix_tax_rates_tenant_name", "tenant_id", "name"),
+        Index("ix_tax_rates_tenant_default", "tenant_id", "is_default"),
+    )
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        PGUUID(as_uuid=True), primary_key=True, default=uuid.uuid4
+    )
+    name: Mapped[str] = mapped_column(String(100), nullable=False)
+    rate: Mapped[float] = mapped_column(Numeric(5, 2), nullable=False)
+    is_default: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
+    country: Mapped[str | None] = mapped_column(String(2), nullable=True)
+    deleted_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)