Certificate of Coverage (CoC)

In brief for employers

A Certificate of Coverage, often shortened to CoC, is social security evidence for certain international agreement cases. It documents that employees may remain subject to a specific social security system even though they perform work abroad.

Definition

A Certificate of Coverage is issued by the competent social security authority when an agreement or similar rule allows continued coverage in the home system. It can be used as evidence for authorities, payroll, internal audits or the country where the work is performed.

In Europe, the better-known evidence is often the A1 certificate. The CoC is especially relevant where bilateral or other international social security agreements apply.

Typical checks

• Which agreement or rule applies?
• Which authority issues the CoC?
• Which period does the certificate cover?
• Which activity and destination country are included?
• Must the evidence be available before travel starts?
• How is the document stored for HR and Payroll?

Difference from A1 and social security agreements

A social security agreement describes the legal framework. A CoC is concrete evidence in certain agreement cases. A1 is another certificate used in many European cases. All three topics belong to social security compliance.

How Vamoz helps with Certificate of Coverage cases

Vamoz A1 Forms helps identify social-security-relevant cases, collect the necessary data and manage evidence such as A1 or CoC centrally with status, period and documentation.