Barb’s question: “I was in a store recently and saw two signs: ‘his’ and ‘her’s.’ Is this correct?”
BizWritingTip response: We have all been taught to use an apostrophe to show possession. However, as I keep saying, there is always an exception to every rule. And, in this case, it relates to personal pronouns.
The following personal pronouns never require an apostrophe to show possession because they are already possessive: my, mine, your, yours, his, her, hers, its, our, ours, their, theirs and whose.
The proposal is his. The business plan is hers.
My passport arrived ten days ago, so she should get hers this week.
Our two cars look alike so it’s hard to tell ours from theirs.
Note: Her’s is never correct.