Punctuation in or outside quotation (speech) marks

The Quick Answer
The rules governing whether to place punctuation inside or outside speech marks are complicated. The quick summary is:
  • Semicolons and colons – outside
  • Exclamation marks and question marks – according to logic
  • Commas and periods/full stops – inside in the US, outside in the UK.

See Also

Colon or comma before quotation (speech) marks? Three dots (ellipsis) in quotation (speech) marks Quotation (speech) marks for ships, plays, books, etc. Double or single quotation (speech) marks? Quotation (speech) marks meaning alleged or so-called