If there's a minority government or coalition government in Britain after 2015 that collapses at some point, do they hold an election to complete the term (until 2020) or does a new five-year fixed term start then (say if it collapses in 2017 the next election is 2022, or if in 2018 the next term ends 2023, etc.)? Just curious for my Timeline I'm writing.
A new 5 year term would most likely begin. Under the law, a parliament expires 5 years after it is initially elected. If the government falls before expiration of parliament, parliament is usually dissolved. A dissolution ends the current parliamentary term, even if it is not complete.