Funny Christmas cards for your sister-in-law

Funny works well with a sister-in-law, because you often share a private view of the family. Joke about the seating plan, the board game grudge or the group chat that never stops. Keep it kind, and she will be the first to text back.

3 things to write inside

Swap in their name. Change anything that doesn’t sound like you.

  1. funny [first name], you are the reason I get through lunch. Please save me the seat next to you and tell me when to stop talking. Merry Christmas.
  2. funny Dear [first name], I have been trying very hard to be the good one this year. Please do not tell anyone about the trifle.
  3. funny [first name], in the spirit of the season I will not mention how you always win at board games. I will merely mention it here.

Questions people ask

What do you write in a Christmas card for a sister-in-law?

Write it the way you would speak to her. Thank her for something real, mention a shared joke or memory, and say you are looking forward to seeing her. A sister-in-law usually prefers warm and slightly cheeky to formal, so let your normal voice come through.

Do I need to send a card to my sister-in-law if we are not close?

It is a kind gesture and rarely goes unnoticed. A short, friendly card with a line about hoping to catch up is plenty. It can also be a gentle way to start getting closer, without needing to make a speech or plan a catch-up.

Can I send a sister-in-law a card that is a little bit cheeky?

If you already tease each other, yes. Keep it affectionate, aim it at yourself or something harmless like the board game rivalry, and avoid anything about her family or her choices. A little warmth under the joke matters.