You write a line that makes you laugh out loud. It is a clever twist, a little joke at your own expense. You read it twice and decide it stays in the letter.

Then the orders come in slower than they should, and you never find out why.

Here is the quiet cost of humor in sales copy. A joke that wins a laugh at a party can fall flat on a page. A flat joke does more than waste a line. It makes your reader wonder who is talking and whether the offer deserves their trust.

I have written sales letters since 2001, and the letters I trust most are the plain, warm ones. In this post you will see four reasons funny lines cost you orders. You will also see where humor does belong, and what to write in its place so your reader smiles without a punchline.

You can check your own letters against the list in about ten minutes.

In This Article...

Reason One: Print Strips Away Your Timing

A stand-up comic leans on three tools: facial expressions, tone of voice, and timing. Take any one away and the best line in the world goes flat.

Print takes away all three. Your reader sees the words, alone, with no smile to show you are kidding.

Speaking is a different game. When you give a talk to a room, a little humor can warm people up, because your face and your pauses do half the job. That is why a joke can win a crowd and still fail in a letter.

Your reader cannot see you wink.

Your reader cannot see you wink, so a line meant as a joke can read as a dig. A line meant as a gentle tease can read as an insult. You will never hear about it, because the reader just closes the page.

Reason Two: Your Joke Is Not Their Joke

I am often struck when I watch a comedy at the cinema. A sharp, witty line draws stony silence. Then something silly happens on screen, and the whole room roars.

People laugh at different things, for different reasons. What has you rolling with laughter can leave your reader cold. Worse, it can annoy them.

Almost everyone believes they have a great sense of humor. Fewer people share yours than you think.

Now think about who reads your letters. Some are tired. Some worry about money. Some read your words in a waiting room, with one eye on the clock. A joke asks every one of them to match your mood, and most will not.

None of this means your letter has to be dull. It means a funny line is a gamble, and your reader pays when it loses.

If you enjoy ideas like this, other ideas I have been writing about lately follow the same thread. Say it in plain words, and let your reader decide.

Reason Three: Humor Says You Are Not Serious

Here is the cost that surprises most writers. Humor sends a signal, whether you mean it to or not. The signal says, “I am not a serious person.”

Humor in sales copy starts with a good wish: the writer wants to seem friendly. But friendly and funny are not the same thing. Friendly puts the reader at ease. Funny asks the reader to judge you.

That matters more than it seems. Your reader is deciding whether to trust you with their time and their money. A funny line can make them wonder if the product is a joke too.

Picture two letters for the same guide on pool care. The first opens with a gag about swimming in pea soup. The second opens with a clear promise: how to keep your water clear all summer.

Which writer would you hand your money to?

The same guide sits behind both letters. One writer makes the reader smile. The other makes the reader feel safe. When money is on the line, safe wins.

Reason Four: A Funny Headline Wastes Your Two Seconds

Your headline has about two seconds to stop a busy person in their tracks. That is all you get.

A cute or puzzling headline spends those seconds on a riddle. Your reader has to guess what you mean, and most will not stay to guess.

You have seen the type on a billboard. It says “Sarah knows” beside a picture of a beach ball. Nobody can tell who is selling what, and the company paid for the space.

Teasers fail the same way. Say a headline cries “Help! Someone’s just eaten my cat!” and the letter then turns to concrete lintels. Your reader feels cheated, and a cheated reader leaves.

Write the headline so the right reader knows in two seconds what is in it for them. Save the clever for another day.

A Before And After You Can Copy

Let us make this real. Say you sell a short guide on training a new puppy.

Before: “Is your puppy a furry little tornado? Buy my guide before your sofa becomes a snack.”

The line is cute. But your reader learns nothing about what the guide does. And a joke about the sofa falls flat with an owner whose puppy just chewed through a shoe.

After: “Here is the plain way to teach your new puppy to stop chewing, one short lesson at a time.”

The guide is the same. The second line promises a result and sounds like a person who knows the way. A worried owner can say yes to it in two seconds.

Here is a second pair, for a guide on bookkeeping.

Before: “Spreadsheets: because who needs a social life?”

After: “Keep your records in one place with five minutes a week, and tax time stops being a scramble.”

Notice the pattern. The funny version talks about the writer. The plain version talks about the reader.

Where Humor Does Belong

I am not asking you to become a stern, joyless writer. Humor has a home. In a talk, on a video, or face to face, your voice and your smile carry the joke for you.

A light touch also fits in a friendly note to a customer who already knows you. They know your tone, so they will not misread it.

Even then, keep it light and keep it short. Humor in sales copy is a gamble you do not need to take, because warmth wins the same trust with no risk.

Here is the test. If a stranger read this line with no smile and no tone of voice, would they still know what you mean? If the answer is no, cut it.

What To Write Instead

You still want your letter to feel alive. Warmth does that job better than a joke.

Write the way you would talk to one person across a kitchen table. Use short sentences, about twelve words or fewer in most of them. Keep paragraphs short too, so your reader can see at a glance that the letter is an easy read.

A typed, personal style often beats a slick, glossy one. It feels like a note from a real person, which is just what you are.

Add small human details that fit the offer. Say you sell a guide to growing tomatoes. Mention the first ripe one you picked from your own plant. A true detail makes a reader smile, and it needs no punchline.

Warmth shows up in small choices. Greet your reader by name when you can. Thank them for their time. Say what you mean in the first line, and say it with care.

Then put your best benefit up front, in plain words. Nothing builds trust faster than a clear promise from someone who sounds sure.

Run A Ten-Minute Humor Check

Take the last letter or email you wrote to sell something. Then follow these steps.

First, read it aloud and mark every line meant to be funny.

Second, read each marked line again as a stranger would, with no smile and no tone of voice.

Third, cut any line that needs your face to land.

Fourth, check your headline. Would a stranger know what the offer is within two seconds? If not, rewrite it in plain words.

Fifth, replace each cut line with a warm, true detail or a clear benefit.

Most letters lose two or three jokes and gain a friendlier feel. Your reader hears the same warm voice, and nothing stands between them and your offer.

Where This Leads Next

If you want to go further, the next step from here is One Letter From Retirement. It walks you through 18 sure-fire steps for writing a powerful sales letter, from the strong opening statement to the P.S. and the final read-through. It also shows you how to write headlines that tell the right reader what is in it for them. And it explains why a plain, personal tone wins orders. Keep it beside you as you write your next letter, and you can check each part as you go. You will find it at OneLetterFromRetirement.com.

Cut one joke from your next letter this week, and put a warm, true detail in its place. Then watch how your reader responds. You do not need a punchline to be remembered. You need a clear promise and a friendly voice. I am rooting for you, and I would love to hear how your next letter lands.

Nick James

You Could Be Just One Simple Letter Away From The End Of All Your Financial Worries...

... And If You Enter Your Mailing Address Below I Can Show You Exactly How To Write It!

The Costly, Little-Known Risk Of Humor In Sales Copy