Do periods go inside quotation marks?

Put commas and periods within quotation marks, except when a parenthetical reference follows. He said, "I may forget your name, but I never forget a face." ... Place the punctuation outside the closing quotation marks if the punctuation applies to the whole sentence.

Where does the period go in a quotation?

When a comma or period is needed after a quotation, publishers in the United States typically put the punctuation mark before the closing quotation mark. The reason for this convention is to improve the appearance of the text.