Government - opposition relations in Spain have been long characterised by a high level of consensus and cooperation. The question analysed here is whether the economic crisis initiated in 2008 has created unprecedented levels of conflict in the political system or whether opposition parties have maintained a cooperative strategy oriented to influence far-reaching policy decisions. Results illustrate that patterns of consensus have decreased significantly since the outbreak of the crisis, and this is partly explained by the rising amount of legislation with socio-economic content, variations in the government's popularity, and the type of government. The analysis also shows that the crisis has increased the incentives of opposition parliamentary groups to oppose European Union legislation, especially among left parties.