Beginner · 8 min read · Updated 2026-10-30

Emails and letters with AI – from complaints to letters to the authorities

Plenty of letters never get written because starting feels hard or the tone is nerve-racking. AI works like a patient writing assistant: it drafts, you decide what gets sent.

Why AI makes a good writing assistant

AI services such as ChatGPT, Claude, Gemini and Copilot are at their best with text. They write fluent English and Finnish, can make your tone more polite or more direct, and can boil a long text down to a few sentences. They never get tired or impatient, even when you ask for a tenth version.

The key is the division of labour: AI writes a draft, but you are the sender. You know what really happened, what you want and what is true. The AI knows nothing about your affairs beyond what you tell it.

This is especially handy if you live in Finland but Finnish or Swedish is not your strongest language: you can explain your situation in English and ask for the letter in Finnish, along with an English translation so you know exactly what you are sending.

Everyday emails: start with a short description

A good way to begin is to tell the AI three things: who you are writing to, what you want and what tone to use. For example, a message to your housing company's property manager about sauna slots, to your summer cottage neighbour about ploughing the shared road, or to your child's sports club about cancelling a fee.

Write a short, friendly email in Finnish to the property manager of our housing company. Topic: the stairwell light on the second floor of staircase B has been broken for two weeks. I would like it fixed and want to know who to report faults like this to in future. Tone: polite but clear. Sign-off: Sarah, flat B12. Also give me an English translation.

You get a ready draft in seconds. Read it through and edit. If it sounds too stiff, ask: "Make this more relaxed and shorter." If it is too casual, ask: "Make this more formal." For more tips on asking well, see the guide How to write a good prompt.

Tip: You can also write your own rough version first and just ask the AI to tidy it up. The message still sounds like you, but typos and unclear sentences get fixed.

Complaints: calm, clear and fact-based

When something you bought turns out faulty, many people either let it go or fire off an angry message. Neither usually works. AI can help you build a calm, structured complaint (in Finnish, a reklamaatio): what you bought, when, what is wrong and what you want – repair, replacement, a price reduction or a refund.

Help me write a complaint to an online shop. Details: I bought a vacuum cleaner about three months ago; the order number is on the receipt. It switches itself off after a few minutes of use. I would prefer a repair or a new unit. Write a polite, factual message with a clear subject line, a short description of the fault and a request for a reply within two weeks. Do not invent any details I have not given – leave square brackets where I will fill things in myself.

Notice the last sentence of that prompt. It matters: you are asking the AI to leave gaps for the order number and dates, so that no made-up details sneak into your letter by accident.

Watch out: AI can sound confident even when it is wrong. If it quotes sections of the Finnish Consumer Protection Act or warranty periods, check them with the Finnish Competition and Consumer Authority or consumer advisory services before sending. A wrong legal reference weakens your complaint.

Letters to the authorities

Writing to Kela, the Tax Administration, your municipality's social services or the building control office can feel daunting. AI helps you structure the matter: what it is about, which decision or application it relates to and what you are asking for. Authorities appreciate short, clear messages – exactly what AI is good at producing.

You might ask: "Write a short, factual message asking for more time to submit the attachments." You can also ask for help with the structure of an appeal or a request for review, but the reasons and facts must come from you.

Watch out: Do not paste your personal identity code, bank account number, customer numbers or other identifying details into an AI service. Write the draft without them and add them only when you copy the text into the authority's own online service. Read more in Security and privacy.

Understanding an official letter

One of the most useful things AI can do is explain difficult texts. A letter from Kela, an insurance decision, a notice of your housing company's annual general meeting or the small print of an electricity contract can be full of terms nobody uses in daily life. You can copy the text (without personal details) into the AI and ask for an explanation.

Explain this letter to me in plain English. Tell me 1) what the letter is about, 2) what I need to do and by when, 3) what happens if I do nothing. If any part is unclear or open to interpretation, say so directly. Here is the text: [paste the letter text without name, identity code or address]

But AI is neither an authority nor a lawyer. If the explanation concerns money, deadlines or your rights, always confirm with whoever sent the letter. A good trick is to ask the AI for a list of questions you can ask on the phone or through the online service.

Tip: On many phones you can photograph a paper letter and give the picture to the AI. Cover or crop out your name, address and identity code first.

Getting the tone right when things are sensitive

Sometimes the point is clear but the tone is hard. How do you tell a neighbour their dog barks at night without souring things? How do you answer a hurtful message from a relative calmly? AI can suggest several versions and you pick the one that fits.

Before: "Your dog is barking all night again – don't you care at all about other people's sleep?"

After: "Hi! I wanted to let you know your dog has been barking quite a lot over the last few nights, and we can hear it in our flat. Could we have a chat and see if there's a solution? Best wishes, your neighbours."

A good rule of thumb: if you are angry, write the angry version for yourself first, ask the AI to make it factual, and read the result the next day.

What AI will not do for you

  • It does not know the truth about your situation. Check every fact, date and amount.
  • It does not send anything by itself (unless it has been specifically connected to your email). You decide what goes out.
  • It does not replace a lawyer in disputes, inheritance matters or contracts.
  • It can sound too polished. If the message reads like an advert, ask for simpler language.

Remember, too, that scammers use the same tools. A well-written message "from your bank" is no longer a sign that it is genuine. Read more in AI scams.

Frequently asked questions

Can I send a complaint written by AI in my own name?

Yes. The message is yours once you have read it, checked the details and approved it. The sender is responsible for the content.

Will the recipient notice that AI wrote it?

Sometimes, if the text is very polished and generic. Add your own words and specific details so it sounds like you.

Can I give the AI a photo of a letter from Kela?

Yes, but cover your name, address, identity code and customer numbers first. Always confirm important matters with Kela itself.

Which AI service is best for writing letters?

ChatGPT, Claude, Gemini and Copilot all write good English and Finnish. The free versions are enough for everyday letters. Try them and pick the one that feels easiest.

Tools in this guide

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