(Annual Nutrient Cycle Assessment) gives a farm specific view of nutrient inputs and outputs and the emissions to the environment; N and P surpluses to the soil (surpluses resulting from fertilizer use and plant uptake), NO3 leaching to upper groundwater and NH3 emissions to the air. ANCA does not include measures, but farm advisors use the results to discuss possible improvements (and thus possible measures) for nutrient efficiency with the farmer. When measures are implemented, ANCA can be used as a monitoring tool to evaluate the effects on the emissions and nutrient use efficiency. Although ANCA was developed to support at farm level, results on a regional scale are used by regional policy makers to estimate possible and feasible reductions of N and P surpluses in catchments. Country of use: NL.