How to Write a Thank-You Note After a Business Dinner

Alexandra Roberts on executive presence and social protocol

The thank-you note is the only part of a dinner the other person can still hold a week later. Everything else, from the wine to the seating plan you agonized over, is gone by Friday.

Most people send it from the back of the car at a quarter to midnight. “Great to see you, thanks again for dinner!” The exclamation point is doing all the work. Nothing is wrong with that message, and nobody has ever read it twice, which is an odd result after someone has given you four hours of their evening and a good deal of their money.

A better note takes about fifteen minutes.

When to send it

Within a day. The next morning is better than the same night, because a message stamped 11:48 p.m. tells your host you were back on your phone the moment you left them, while one sent at nine the next morning suggests they were among the first things you thought of. That sounds sentimental. It is also exactly how people read timestamps.

A handwritten card should be written the following day and mailed the same afternoon. It will arrive after an email would have. That is fine, and you can date the card at the top so the speed of your gratitude is on the record. If you are two weeks late, send it anyway. One clause of apology (“forgive the delay”) is plenty. A paragraph of explanation turns your thanks into a confession.

Paper or email

My rule is short. After a first dinner with someone, write by hand. If a spouse or partner was at the table, write by hand, and address them too.

Email is correct when you already trade messages with the host several times a week. In that case a card can feel like a costume, and the kindest thing is a few warm lines in the channel you actually share.

On the Peninsula there is a reflex that paper is fussy, a little East Coast, something your grandmother did. I think that reflex is costing people. In an office on Sand Hill Road where nearly everything arrives on a screen, a heavy envelope with a real stamp tends to get opened first and kept longest, and the person who sent it is remembered as someone who spent a quarter of an hour they were under no obligation to spend.

Use a flat correspondence card in white or ecru with your name at the top and nothing else on it. No company logo. Write in black or dark blue ink with a pen that does not skip, because a stuttering line looks like hesitation even when it is only a cheap pen. If you want to send a quick email the morning after and a card later, you may, but do not let the email say “a proper note to follow.” That announces the gesture and spends half its value.

What the note says

Open with the thanks, plainly, and name the occasion. Then give one detail from the evening that could not have come from any other evening. This is the whole craft. Close with a line that looks forward without asking for anything, and sign it.

Here is roughly what that looks like:

Dear Helen, thank you for dinner on Thursday. I have been thinking about your account of opening the hotel in Chiang Mai during the rains, and I have already retold it twice, badly. Please thank David for choosing the Barolo, which I am still trying to find. I hope we can return the evening before the year is out. Warmly, Alexandra

Compare: “Thank you for a wonderful evening. The food was delicious and the company even better.” You could mail that to anyone in California and it would be equally true, which means it says nothing about Helen at all.

Keep it between sixty and ninety words. A correspondence card holds about that much, which is one of the reasons cards are good. The detail also proves you were listening, and listening is most of what a guest is there to do. If you made introductions over the course of the evening, the note is a natural place to mention the person you met, briefly; I cover the in-person side of that in how to introduce two people.

Keep business out of it

No attachments, and no “as discussed, here are next steps.” Folding a sales follow-up into a thank-you note makes the gratitude look like the wrapping paper. Send the business separately, a day or two later, under its own subject line.

One exception. If the host asked you over dessert to send them something, send it promptly, because that is a reply to a request, and replies should be quick. Just send it as its own message.

If the evening went badly

Write the note anyway, and make it shorter.

The note the host owes

Every guide I have read on this subject assumes you were the guest. Hosts write notes too, and the hosts who do are rarer and remembered much longer than the guests who do.

After a dinner you gave, write first to the guest of honor and thank them for coming. That feels backwards. It is correct, because their acceptance is what made your invitation worth accepting for everyone else at the table, and a client who flew up from Los Angeles for your dinner gave you something rather more valuable than a meal. Then write to whichever guest quietly did some of your work for you: the one who drew out the silent investor at the far end, or who steered the conversation away from a subject that was about to go wrong. They know what they did. A host who noticed it, in writing, will find that guest very willing to help again.

Then the restaurant. I spent three years at the host stand at Four Seasons San Francisco. The letters I remember best from that time were written by hosts after a dinner they had given, and the good ones named one server, usually someone who had noticed a glass running low at the far end of a long table. A short letter to the general manager, with that server’s name in it, costs you ten minutes. It also tends to mean that the next time you call for a table, the person answering already knows who you are.

The broader mechanics of hosting, from arrival to the bill, are in client dinner etiquette. The note is the last of them, and the one most hosts skip.

Why it reads as presence

Executive presence is mostly what people remember about you once you have left the room, and a note is the one piece of you that stays in the room after you go. The window is similar after a charity event, where a note to the executive director within forty-eight hours is expected, as I describe in fundraising gala etiquette. Email correspondence has its own rules, several of which I set out in the etiquette of the intro email.

Buy the cards before you need them. Keep twenty in a drawer, with stamps, so that the morning after a good dinner the only thing standing between you and the note is the fifteen minutes it takes to write.