Scott Free - term for not paying taxes
CF NEVER PAID ANY TAXES
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the origin of 'scot free'. Wrong again, but at least we are in the right part of the world now. 'Skat' is a Scandinavian word for tax or payment and the word migrated to Britain and mutated into 'scot' as the name of a redistributive taxation, levied as early the 10th century as a form of municipal poor relief.
'Scot' as a term for tax has been used since then in various forms - Church scot, Rome scot, Soul scot and so on. Whatever the tax, the phrase 'getting off scot free' simply refers to not paying one's taxes.
https://www.phrases.org.uk/meanings/scot-free.html