Company Details and Tax Information

If your business pays for TrekMail, your finance team needs more than a payment amount on an invoice — they need a legal company name, registered address, and often a VAT or GST identification number. Without these, invoices may be rejected by accounting departments or fail to qualify as deductible business expenses.

TrekMail passes your company details directly to Stripe, which then prints them on every generated invoice and PDF receipt. Set it once and every future invoice is correct automatically.

Where to find the settings

1. Log in to the TrekMail dashboard
2. Go to Billing
3. Look for the Company Information section below your current plan and payment method
4. Fill in the fields described below
5. Click Save

What each field does

Company name The legal entity name as it should appear on invoices — for example, "Acme Corp Ltd" or "Alice Baker Consulting." If you leave it blank, invoices use your account name instead.

Billing address Your full registered business address: street, city, state or region, postcode, and country. Many tax authorities require a valid billing address for invoices to be tax-deductible.

VAT / Tax ID Your business's tax registration number. What this is called depends on your country:

Enter the number exactly as issued, including any country prefix your jurisdiction requires. TrekMail validates the format for EU VAT numbers and displays an error if the format does not match.

Tip: If your business is VAT-registered in an EU country, entering a valid EU VAT number may enable reverse-charge VAT on your invoices. Check with your accountant if you are unsure whether this applies to your situation.

When to update your details

Before your first paid invoice: Set your company details before subscribing so that your very first invoice is correct. Retroactively correcting invoices in Stripe is possible but takes more effort.

After changing legal entity: If your company is restructured, renamed, or reregistered, update the details so future invoices reflect the new entity. Past invoices are not affected.

After a VAT registration change: If your VAT status changes — for example, your business crosses the registration threshold and receives a new number — update the field immediately.

Downloading and sharing invoices

After adding your company details, any new invoice will include them automatically.

1. Go to Billing in the TrekMail dashboard
2. Scroll to the Invoices section
3. Click Invoice next to any charge to download the PDF

Note: Invoices generated before you added your company details will not be retroactively updated. If you need a corrected invoice for a past charge, contact TrekMail support with the charge reference and your correct company details.

Frequently asked questions

Do I need to fill in company details on a personal account? No. If you pay for TrekMail personally rather than through a business, you can leave these fields empty. Invoices will show your account name and email instead.

Is my VAT number stored securely? Yes. Company details are stored in Stripe's billing system and treated with the same security as your other billing data. TrekMail does not share your tax ID for any purpose other than printing it on invoices.

Can I have different company details for different invoices? No — company details apply to your entire account. All invoices on the account use the same company information.