How to write a posthumous letter: steps, structure and examples for each recipient

To write a posthumous letter, first decide who it is for and what you want them to remember about you; then write it in this order: why you are writing, one or two specific memories, what you wish for their life and a warm goodbye. Leave out the division of your property and any legal instructions, which belong in your will, and store the letter somewhere it will reach only that person, and only when the time comes.

Below you will find the steps, a structure, examples for a partner, children and a business partner, and what is best left unwritten. If you first want to understand how these messages work, start with the guide to posthumous messages.

What is a posthumous letter, and what should it not be?

A posthumous letter is a letter, text or recording you prepare during your lifetime so that someone receives it after your death: to say what you never said, pass on your values and, sometimes, guide your family through the first few days. It is often called a legacy letter or an ethical will: a personal document with no legal effect.

What it should not be is a home-made will. The formal requirements for a valid will depend on the country, but they almost always go beyond an informal message typed on a phone or computer. In Spain, for example, article 672 of the Civil Code states that any provision on heirs or bequests made by referring to private papers found after death is void unless those papers meet the requirements of a handwritten will, and article 688 requires that kind of will to be written entirely and signed by hand, with the year, month and day. Other countries, and even some regions within Spain, have their own rules, so check with a local lawyer or notary.

The practical takeaway: the letter is for your words; the will is for your decisions. Inheritans does not replace a will: it complements it. For the legal side, speak to a lawyer or notary.

How do you write a posthumous letter, step by step?

1. Make a list of recipients. Start with the two or three people you would most regret leaving without a word.
2. Write one central idea per person. If they could keep only one sentence from you, what would it be?
3. Find a specific memory. A place, a phrase, a habit. Specifics move people; generalities ("you have always meant so much to me") are forgotten.
4. Write the first draft in one go, without editing. The first version does not need to be good; it needs to exist.
5. Let it rest for a few days, then cut it down. If you would not say a sentence out loud to that person, it goes.
6. Separate the practical from the emotional. Instructions (where the paperwork is, who to call) go in a section of their own or in a separate document.
7. Store it somewhere that will take care of delivering it and set yourself a reminder to review it once a year.

What structure works for a posthumous letter?

There is no single formula, but this five-part structure works for almost any recipient:

Part	What it does	Opening line
1. Opening	Sets the scene and explains why you are writing	"I am writing this so you have in writing something I did not always know how to say."
2. Memory	Gives them something specific that belongs to the two of you	"Do you remember that summer when…?"
3. What you learned or are grateful for	Passes on values, not rules	"You taught me that…"
4. Wish or permission	Frees the reader rather than burdening them	"You don't have to do anything for me. I just want you to…"
5. Closing	Says goodbye with warmth and, if needed, one practical step	"When you are ready, call…"

Write the way you speak, with your own expressions and nicknames: the reader should hear your voice, not a template.

How do you adapt the letter to each recipient?

A posthumous letter to your partner

Say thank you, recall something that was only yours and, above all, give them permission to move on.

"Anna: thank you for thirty years of breakfasts with the radio on. If you ever feel guilty about laughing again, or about loving someone, know that it is exactly what I would want. Live a lot. I love you."

A farewell letter to your children

This is the hardest one. Three ideas help:

• One letter per child, with their own memories, and a short one for all of them with what you share. That way nobody compares.
• Write for the age they will be when they read it: short sentences for a young child, as equals for an adult.
• Think of dates that come round every year. A message for their birthday or for Christmas can mean more than one long letter. On the Inheritans Lattice plan you can schedule a message for a specific day and month (it is sent the first time that date comes round after the capsule is activated) or for a period of time after activation. Big moments with no known date, such as their wedding, cannot be scheduled: if you want to write for that day, the message will arrive with the others after activation, so tell them at the start when you would like them to read it.

"Martha: happy birthday. I'm not here to embarrass you with the cake, so I'm leaving you this instead: make mistakes without fear, ask for help without shame and never stop drawing. I am proud of you, today and always."

A posthumous letter to a business partner or colleague

Keep the tone sober: acknowledge what you built together, offer reassurance and say who holds the information.

"James: building this with you has been one of the best things I have done. I trust your judgement; decide what you think is best for the company and the team. Our accountants hold the company records, including the signed shareholders' agreement. Thank you for everything, partner."

What happens to your shares is not decided in a letter: it depends on the company's articles, the shareholders' agreement and your will. Ask your lawyer or notary.

What should you not put in a posthumous letter?

• Distribution of property or naming heirs. In most jurisdictions an informal letter will not have the effect of a will unless it meets the formal requirements for one (in Spain, article 672 of the Civil Code).
• Reproaches or settling scores. The reader will not be able to answer you.
• Revelations that affect other people. A secret that is not only yours can hurt people who never chose to receive it.
• Requests that become a burden. "Promise me you will never sell the house" weighs on someone for years. Express a wish and leave them free.
• Passwords and sensitive data mixed into the emotional text. If you need to leave credentials or access details, keep them separate from the letter. In Inheritans they are stored as asset types, apart from your messages.

Can you say what matters in 1,024 characters?

Yes, and it is a good exercise. Inheritans' free plan, Freedom, allows one message of up to 1,024 characters for one contact. That limit forces you to choose: one central idea, one memory, one wish and one goodbye. This example is around 750 characters long:

Lucy, If you are reading this, I can no longer tell you in person, so I am leaving it in writing. First things first: I love you. I did not say it as often as I should have, and it is what I most want you to remember. When you were little you asked me why I was always late for dinner. I was late because I found it hard to leave work, and I regret it. Don't make my mistake: work can wait, people can't always. Look after Mum and let her look after you. And your brother, even when he drives you mad. The paperwork is in the cupboard in my study, and Aunt Carmen knows where everything is. Call her when you are ready, no rush. Be sad for as long as you need. Then go for a walk on the beach, like we did on Sundays. You will always find me there. Love, Dad

If you need more space, more recipients or delivery dates, this is what each plan includes:

Plan	Messages	Length per message	Contacts	Scheduled delivery
Freedom (free)	1	Up to 1,024 characters	1	No
Basic (€69.99/year)	1	Up to 2,048 characters	Up to 2	No
Plus (€129.99/year)	1	Up to 4,096 characters	Up to 10	No
Lattice (€199.99/year)	Unlimited	Up to 10,000 characters	Unlimited	Yes

You can start with Freedom to write your first message and compare the plans whenever you want more.

Where should you keep the letter so it arrives at the right time?

A letter at home can get lost or be found too soon, and leaving it with someone you trust depends on that person being there. A posthumous message service delivers each message to its recipient; what you need to check is how it verifies a death and how it protects the content.

In Inheritans, your messages and assets are encrypted on your device before they are sent, and each message reaches only the people you choose, and only when the time comes. Nothing is delivered until the team has reviewed the documents (on Freedom, it checks that the details match), and during verification the team works with the documents your contacts provide, not with the content of your capsule.

Whichever option you choose, someone you trust needs to know it exists and what to do if something happens to you; they do not need to know what it says. In Inheritans this is your authorised contact. And since signing in to your account only takes a code sent to your email, turn on two-step verification: that way, access to your email alone will not be enough to sign in.

Related questions

What should a posthumous letter include? What you want that person to know and remember: why you are writing, one or two specific memories, what they taught you or what you wish for them, and a warm goodbye. Decisions about your property and heirs belong in your will, not in the letter.

How long should a posthumous letter be? There is no right length. A short, specific letter usually reads better than a long, generic one. As a guide, around 1,000 characters is enough for a memory, a wish and a goodbye.

Is a posthumous letter legally binding? As a personal message it does not need to be. If it tries to distribute your estate, in most countries it will not have the effect of a will unless it meets the formal requirements for one, which vary by jurisdiction. Speak to a lawyer or notary for that.

Should I write one letter for each child or one for all of them? If you can, one for each child with memories of their own, plus a short one for all of them with what you share. That way nobody has to share their words or compare.

Can I schedule a message for a specific date, such as a birthday? Yes, on the Inheritans Lattice plan: a specific day and month, such as a birthday, an anniversary or Christmas, or a period of time after the capsule is activated. The message is sent once, always after activation. It cannot be tied to a particular age or to dates nobody knows in advance, such as a wedding.