# Risk factors

- [Permanent establishment](/en/contents/risk-factors/permanent-establishment.md)
- [Employment tax](/en/contents/risk-factors/employment-tax.md)
- [Social security](/en/contents/risk-factors/social-security.md)
- [Labour law](/en/contents/risk-factors/labour-law.md)
- [Work entitlement](/en/contents/risk-factors/work-entitlement.md)
- [Posted Workers Directive (PWD)](/en/contents/risk-factors/posted-workers-directive-pwd.md)
- [Data protection](/en/contents/risk-factors/data-protection.md)
- [Health insurance](/en/contents/risk-factors/health-insurance.md)
