A Letter to My Sister — For the Bond Nothing Can Break
Write a handwritten letter to your sister today. We'll deliver it on a future birthday, wedding day, or random date — a letter she'll keep for the rest of her life.
Why This Works
The sibling relationship is one of the longest relationships most people will have. A sister is someone who knew you before the world did — who shared your parents, your childhood, your specific early-life weather. That shared history is in both of your bones, whether or not the two of you are close today. And the words that acknowledge that shared bond tend to be some of the hardest ones to say in person, because siblings rarely sit down to have those conversations. The relationship is too built-in.
A letter gives you a reason to finally put it into words. You sit down tonight and you write to your sister what you've never quite said. The memory from your childhood that you still think about. The thing about her you've always admired. The way she carried a family moment that you didn't know how to handle. The specific way her being your sister shaped you. You write it in handwriting she'll recognize instantly. You seal it, we hold it, and on a future date you choose it arrives in her mailbox.
Sisters keep these letters in a specific way. They don't frame them. They don't share them. They put them in the drawer with the other things they consider sacred, and they come back to them on hard days. A letter to a sister often gets more meaningful across a lifetime — because the older you both get, the rarer it is for one of you to stop and put into words what the other has been to you. Write it now. She'll have it forever.
How It Works
Three simple steps. One beautiful moment, later.
Write Your Letter
Pour your heart onto paper. Use our Letter Helper if you'd like prompts. Pick any delivery date you want — from one month out to two years out.
We Keep It Safe
Mail your sealed letter to our PO Box. We store it in a climate-controlled, fire-resistant safe — untouched, unopened, waiting.
We Deliver It
On your chosen date, we mail your original, handwritten letter with tracking. Your words arrive exactly when they're meant to.
Your letter is in safe hands
How We Keep Your Letter Safe
You're trusting us with something irreplaceable. Here's what we do about that.
Climate-Controlled & Fire-Resistant
Letters are stored in climate-controlled, fire-resistant safes — not filing cabinets or cardboard boxes. We treat every letter as irreplaceable, because to someone, it is.
Tracked on Delivery
Every letter ships with an active tracking number, so you (or the recipient) know exactly when it's on its way.
Move? Just Email Us
If your address changes before your delivery date, email us anytime and we'll update your file. Your letter follows you — no extra fee.
Your Words, Always Safe
If Hold My Letter ever closes, every stored letter is immediately mailed back to the sender's return address. No exceptions.
Simple Pricing
One letter. One delivery. One beautiful moment when it returns.
Write now, deliver later
Type your letter online. We print it on cream stationery, seal it with wax, and mail the physical envelope on any date you choose — from one month out to two years out.
Digital Future Letter
One-time payment
- Type on our site, no handwriting required
- Printed on cream stationery, sealed with wax
- Mailed as a physical envelope on your chosen date
- Any custom date from one month to two years out
You write it. You mail it in. We mail it back.
The original Hold My Letter experience. Handwrite your letter, seal the envelope, and mail it to our PO Box. We store it in a climate-controlled, fire-resistant safe until your chosen delivery date — then send it back with tracking, still sealed.
Mail-in Handwritten Letter
One-time payment
- You handwrite it, you mail it in
- Stored sealed in a climate-controlled, fire-resistant safe
- Mailed back to you with tracking, still sealed
- Any custom date from one month to two years out
🇺🇸 Currently available for US addresses only.
Questions Worth Answering
Everything you need to know, answered plainly.
What happens to my letter if Hold My Letter goes out of business?
What if I move before my letter is delivered?
How do you store the letters?
What if my sister and I aren't close?
What are good delivery dates?
Can I write multiple letters for different future dates?
Ready to Write Your Letter?
It only takes 20 minutes. The moment it lands will be worth years.