Become a partner

Become part of the Billtobox community

Billtobox is a digital platform for managing administration, billing, and payments for businesses. It also provides the link between the accountant and the business owner and ensures more efficient cooperation between the two.

Become a Billtobox partner
Logo of ITAA
Logo of Ecma
Logo or Count-E
Logo or Embuild

Why become a partner of Billtobox?

Billtobox is a product of Unifiedpost Group, an international fintech leader in Europe focused on unburdening both accounting firms and entrepreneurs.

Market leader in document processing and payments

Maximum administrative simplification and automation of financial processes

Billtobox can work both autonomously and integrated into any business environment and sector

Billtobox is an international platform and therefore certainly of interest to partners operating internationally

Man and woman giving a high-five
Leading companies

Our partners

We are excited to announce our collaboration with industry-leading organizations, each known for their expertise and innovation in their respective fields. This collaboration marks an important step forward in our journey, bringing together a diverse set of skills, experiences and perspectives. Together, we are committed to delivering excellence, enhancing our service offerings and driving transformational change.


The Institute for Tax advisors and Accountants represents the interests of its members and trainees, supporting them administratively and digitally.

Logo of Ecma

Trade association for standardization in ICT, fosters competition and trust by supporting industry members.


Embuild, the Belgian building society, is encouraging its members to digitize their records.


This accounting package is the solution for schools to kiss administrative burdens goodbye by enabling electronic invoicing and payments for school accounts.

Join us

Become a partner

If your company is part of an industry or ecosystem where digitization can help optimize financial processes and insights, you are a valuable partner to be part of the Unifiedpost network.

Send an email to or complete the form below.

Thank you! Your message was sent successfully.
Something went wrong while sending your message.
Please check that all fields were filled in correctly.

Ready to get started with Billtobox?
Start your trial today.

Welcome to our Billtobox website! We, and third parties, use cookies on our websites. We use them to enhance site navigation, analyse site usage and assist in our marketing efforts. You can read more about our cookies and change your preferences by clicking on 'Change my settings'. By clicking on 'Accept all cookies', you agree to the use of all cookies as described in our Privacy cookie policy.