PFAS contamination poses a challenge to soil health, food systems, ecosystems and humans. The EU Soil Monitoring and Resilience Directive requires Member States to monitor soil contamination but there is not a harmonised analytical standard. In this technical paper we provide recommendations for robust standardisation for PFAS detection in soils and biosolids. Closing this gap is essential to deliver comparable data so that the EU’s PFAS and soil frameworks can function effectively.