How to Write Emails with ChatGPT: 15 Copy-Paste Prompts for Small Business Owners and Freelancers

Why AI emails sound like robots (and the 60-second fix)

You’ve seen them: “I hope this email finds you well! I am thrilled to reach out regarding…” Nobody talks like that, and your customers can tell. The fix isn’t a fancier tool. It’s giving the assistant the three things it can’t guess: your facts, your goal and your voice.

Step 1: Teach it your voice once (5 minutes)

Make one “Email helper” space that already knows how you write and what your business offers. In ChatGPT that’s a Project:

1. Select New project in the sidebar and name it something like “Email helper.”
2. Open the project’s ••• menu, choose Project settings, and paste the voice card below into the instructions box.
3. Optional: add your price list, hours or policies as files. OpenAI lists 5 files per project on the Free plan and 25 on Go and Plus.

OpenAI says project instructions apply only inside that project and override your global Custom Instructions, so your email voice won’t leak into your other chats.

You help me write emails for [BUSINESS NAME], a [WHAT YOU DO]
in [TOWN]. My customers are [WHO].
My voice: friendly, short, plain words, like a local owner, not a
corporation. Short paragraphs. No "I hope this email finds you
well." At most one exclamation point.
Here are 2 emails I wrote myself. Copy this style:
[PASTE EMAIL 1]
[PASTE EMAIL 2]
Rules: never promise refunds, discounts or dates I didn't give
you. If a fact is missing, write [CHECK] instead of guessing.
Always give me 2 versions: one warmer, one more direct.

Using Claude? Same idea: make a Claude Project and paste the voice card into its instructions. Anthropic says Projects are available on free Claude accounts too (free users can create up to five).

Just want it everywhere? Put a shorter version of your voice in ChatGPT Custom Instructions instead.

Step 2: The 3-step email method: dump, draft, trim

Don’t try to write a perfect prompt. Just dump what’s in your head, messy is fine:

Email to: [WHO]
What I want them to do: [ONE ACTION, like reply yes, pay the
invoice, pick a time]
Facts to include: [DATES, PRICES, DETAILS, as notes]
Tone: [friendly / firm but kind / apologetic]
Length: under [100] words.
Draft it, then list anything you had to assume.

Then trim with one short follow-up. OpenAI’s own prompting tips say to refine step by step and to name the tone you want, like friendly, formal or serious. These work great:

• “Cut it in half.”
• “Put the ask in the first sentence.”
• “Less formal. Sound like me talking to a regular.”
• “Give me 3 subject lines under 6 words.”

New to prompting? Our 4-part prompt formula works the same way for everything else.

Step 3: Edit it, then you send it

When ChatGPT writes something you’ll probably revise, like an email, it may put the draft in a writing block. OpenAI says you can edit that text directly, ask ChatGPT to revise just the part you select, and copy it. For supported drafts it may also let you open it in your email app or send it straight from ChatGPT, when that option is available. Which buttons you see depends on your plan, device and settings.

Copy-paste email prompts

The first 3 are free here; Bot Club members get all 15. Fill in the [BRACKETS]. If you set up the Email helper project, you can skip the voice and business details.

🏪 Customers (small business)

1. Answer a customer question with your real facts

Reply to this customer email: [PASTE]. Use only my info below.
If the answer isn't in my info, write [ASK OWNER]. Under 80
words, friendly, end with one clear next step.
My info: [HOURS, PRICES, POLICIES].

2. Confirm or reschedule a booking

Write a short email confirming [SERVICE] for [NAME] on [DAY,
DATE, TIME] at [ADDRESS]. Include what to bring: [LIST]. Say how
to reschedule: [PHONE/LINK]. Under 70 words.

3. Say sorry the right way

A customer is upset about [WHAT HAPPENED]. Their email: [PASTE].
Write a reply that apologizes once, explains what happened in one
sentence without excuses, and offers [WHAT I CAN ACTUALLY OFFER].
No promises beyond that. Calm, human, under 120 words.

Sending marketing emails? Know the 7 basic rules

If an email’s main purpose is to advertise or promote what you sell, the FTC says the CAN-SPAM Act applies, and that includes business-to-business email and messages to past customers. The FTC’s plain-English checklist:

1. Honest “From” and “Reply-To” that identify you or your business.
2. Honest subject lines that match what’s inside.
3. Say it’s an ad, clearly.
4. Include your valid physical postal address (a registered P.O. box or private mailbox counts).
5. Tell people how to opt out, in a way that’s easy to spot and understand.
6. Honor opt-outs within 10 business days, and keep your opt-out working for at least 30 days after you send.
7. You’re still responsible if you hire someone else to send your emails.

The FTC says each separate violating email can cost up to $53,088. Thank-you notes, order confirmations and account updates are mostly treated differently, but the FTC reads those categories narrowly. A handy prompt:

Check this marketing email against the FTC's CAN-SPAM basics:
honest subject line, clearly an ad, my postal address included,
and a clear way to opt out. List anything missing. Email: [PASTE]

Privacy: what to leave out of the chat

More simple rules in our AI safety guide.

Troubleshooting

• Still too long? Give a hard limit: “under 60 words” works better than “short.”
• Too stiff? Paste one more email you wrote and say “match this one.”
• It made up a detail? Add “If it’s not in my notes, write [CHECK]” to your prompt or project instructions.
• Same openers every time? Ban them: “Never start with ‘I hope’ or ‘Just checking in.’”
• Want every reply drafted from your FAQ automatically? That’s the next step: an AI FAQ bot for your business.

Want an email helper that’s already set up?

Not sure which assistant fits you? Take the 2-minute AI sidekick quiz.

Same voice, different job: use this setup for posts too with our 15 prompts for social media posts.

Sending a price with that email? Build the quote itself (line items, what’s not included, payment terms) with 3 copy-paste quote prompts.

Need to answer a bill or a notice? Our guide to understand confusing letters, bills and forms with ChatGPT includes a calm dispute and question letter prompt, plus the deadlines that matter.

Job hunting? Cover letters, follow-ups and interview thank-you notes are just emails with higher stakes; see ChatGPT for your job search for resume-matching and practice-interview prompts.

Sending client holiday cards? The same “sound like you” method works for a short, no-sales-pitch thank-you card. Copy-paste prompts in holiday cards and a family letter with ChatGPT.

Need a refund email after a canceled flight? Our flight canceled or delayed? refund rights + ChatGPT help guide has a ready prompt that cites DOT’s automatic refund rule (7 business days for credit card purchases).

Need a status or cancel email for a late order? Our delayed or missing package? delivery rights + ChatGPT help guide has a ready prompt that cites the FTC Mail Order Merchandise Rule’s 30-day default and prompt-refund idea.

Sources

• OpenAI Help: Projects in ChatGPT
• OpenAI Help: Working with writing blocks and code blocks in ChatGPT
• OpenAI Help: Prompt engineering best practices for ChatGPT
• OpenAI Help: Data controls in ChatGPT
• Claude Help Center: Understanding Claude’s personalization features
• FTC: CAN-SPAM Act: A Compliance Guide for Business