How to invoice from multiple companies without mixing them up

What does it take to invoice from more than one company?

To invoice from multiple companies, give every company its own invoice identity: its own legal name and details on the invoice, its own sequential invoice numbers, its own bank details, and its own email address to send from. The invoices can live in one tool, but nothing about one company should appear on another company's invoice.

Mixing them up is the common failure. A client gets an invoice with the wrong company's bank details, two companies share one number sequence, or an invoice for one business arrives from another business's email address. Each of those slows payment and confuses your records.

What must each company's invoice show?

The rules depend on the country. In the UK, GOV.UK says every invoice must include a unique identification number, your company name, address and contact information, the customer's name and address, a description of what you're charging for, the supply date, the invoice date, the amounts charged, VAT if applicable, and the total owed. A limited company must also show its full name as it appears on its certificate of incorporation.

When you run several companies, that means the company block on the invoice changes with the company, not just the logo. Check your own country's requirements with your accountant.

How to set up invoicing for several companies, step by step

Whatever tool you use, the setup is the same:

• Create a separate profile for each company with its legal name, address, company and VAT numbers, and bank details.
• Give each company its own invoice template, so the branding matches the business that's billing.
• Start a separate sequential invoice number series for each company (for example A-0001 and B-0001), and never share one sequence across companies.
• Connect each company's own email address, so invoices come from the business the client actually works with, and replies go back to it.
• Keep clients under the company that bills them. If two companies bill the same client, set the client up under both.
• Report per company: outstanding, overdue and paid totals for each business, not one blended number.

One tool or one account per company?

Many invoicing tools assume one business per subscription, so running three companies means three accounts, three logins and often three bills. Some tools let you add more businesses under one login but still charge for each one separately. Others, such as Invco, price by how many companies you run and keep each company fully separate inside one login.

Separate accounts work, but they make it easy to send from the wrong place and hard to see everything you're owed at once. A multi-company tool keeps the separation and removes the switching cost.

How Invco handles multiple companies

Invco is invoicing software built for exactly this. One login holds every company you run, and each company keeps its own branding, templates, clients, sequential invoice numbering, business and bank details, and email inbox. You switch companies in one click, and invoices are sent as branded PDFs from that company's own address, with client replies filed against the invoice they're about. Starter is $10/month for 1 company, Growth is $20/month for up to 3 companies, Pro is $30/month for up to 8 companies, Scale is $50/month for up to 20 companies, and Unlimited is $100/month with no cap.