How to write a handwritten letter that doesn't feel like marketing

You've decided to send your customers a handwritten letter. Brilliant.

Now comes the tricky part: what do you actually say?

Because here's the thing. A handwritten letter can feel wonderfully personal, but only if the words match the handwriting. If the message reads like an advert, all that warmth disappears the moment someone starts reading.

The good news is that writing a great handwritten letter isn't complicated. It's mostly about unlearning a few marketing habits.

Start with why you're writing

Before you write a word, finish this sentence:

I'm writing to this person because…

Maybe it's to welcome them. To say thank you. To mark an anniversary. To pick up a conversation that went quiet.

If the honest answer is "because we want them to buy something", that's fine, but the letter still needs a human reason to exist. People can tell the difference between a note that was written for them and a promotion that happens to be handwritten.

Write like you talk

The best handwritten letters sound like a message from a person, not a campaign from a marketing department.

A useful test is to read your letter out loud and ask yourself: would I actually say this to them?

You'd never walk up to a client and say "We're delighted to inform you of our exciting new range of dog beds". You might say "We've just launched something I think you'd really like".

A few quick fixes:

• Use contractions (we're, you'll, it's)
• Swap formal phrases for everyday ones ("I wanted to say" rather than "we would like to take this opportunity to")
• Write to one person, not "our valued customers"

Keep it short

A handwritten letter doesn't need to be long to have an impact. In fact, shorter is usually better.

A few short paragraphs is plenty. One to say why you're writing, one to add something personal, and a warm sign-off. If you find yourself writing a fourth or fifth paragraph, there's a good chance you're drifting into sales territory.

Think of it as a note, not a brochure.

Personalise beyond the first name

"Hi Sarah" is a good start, but it's only a start. The details that make a letter feel personal are the ones that show you know who you're writing to.

You could reference:

• What they bought or the service they used
• How long they've been a customer
• Their account manager or the person they usually speak to
• A recent conversation, project or milestone
• Their town or local store

With Penned, you can add personalised variables like names, dates and codes to every letter, so each one is written around the individual recipient, even when you're sending hundreds.

One message, one ask

Marketing emails often try to do five things at once: announce a product, promote a sale, ask for a review, push the app and invite you to follow on social.

A handwritten letter should do one thing well.

If you do want the reader to take an action, make it single, simple and easy. "If you ever fancy a catch-up, just give me a ring" feels very different to "BOOK YOUR CONSULTATION TODAY".

The habits that make a letter feel like marketing

If you want your letter to feel personal, try to avoid:

• Opening with an offer. Lead with the relationship, not the discount
• Capital letters and lots of exclamation marks. They shout, and handwriting should talk
• Jargon and buzzwords. "Solutions", "leverage" and "synergy" have no place in a personal note
• "Dear valued customer". If you don't know their name, a handwritten letter probably isn't the right format yet
• Urgency tactics. "Last chance" and "limited time only" instantly undo the personal feel

Don't underestimate the P.S.

The P.S. is one of the most natural parts of a handwritten letter. It feels like an afterthought, which is exactly what makes it charming.

It's a lovely spot for a small personal touch or a gentle nudge, for example:

• P.S. I hope the move went smoothly!
• P.S. If you're ever passing the Trafalgar Road shop, pop in and say hello.

Sign off from a real person

"The Team" is fine on an email footer. On a handwritten letter, it feels a bit flat.

Sign off with a real name, ideally someone the customer has dealt with or would recognise, like their account manager or your founder. Adding their role underneath helps too: "Matt, Founder" says a lot more than just "Founder".

Before and after: a real example

Before

After

Same business, same offer. The second one just feels like it came from a person.

Your quick checklist

• Do I know why I'm writing to this person?
• Would I say this out loud?
• Is it short enough to read in under a minute?
• Does it include at least one personal detail beyond their name?
• Is there only one (gentle) ask?
• Is it signed by a real person?

The key takeaway

Handwriting does a lot of the work for you. It signals care, effort and warmth before your customer has read a word. Your job is simply to make sure the message lives up to it.

Write to one person. Keep it short. Say something real. And if in doubt, leave the sales pitch out.

If you'd like to see these ideas in action, take a look at how we'd approach a customer welcome letter or a note to a lead who's gone quiet.

You write the words. We'll handle the handwriting.

Penned turns your message into personalised handwritten letters, notes and cards, written with real pens on real paper in genuine handwriting styles. Every piece is quality checked before it's posted.

So you get the warmth of a personal letter, without anyone in your team needing to pick up a pen.

You type. We write.