EU27.ai

For VAT and tax practices

A client portal for VAT and tax practices, in every client's language.

Every VAT number, every return and every country for each client on one record, with your next service one click away.

Try it as the client

No sign-up. The live demo is set up for a VAT and tax practice with fictional clients; your portal carries your services.

VAT & tax edition calendar filtered to VAT and OSS returns: Nordkap's German September return due today, two requests this week, Alder Street Imports' French Q3 return on Mon 19 Oct.

Try it with your services

Tick what a client already has. See what their portal offers them.

The portal never offers a service a client already holds, and only offers what fits what they have. A client with a VAT number is offered the next country; a client filing OSS returns is offered a cross-border review.

Your client already has

Example rules and prices for a VAT and tax practice. In your portal, the services, rules and prices are yours.

Add to your plan

Example · A VAT and tax practice

Two new warehouses. Two new VAT numbers.

This client holds VAT registration in Germany and France and files One-Stop Shop returns every quarter. They now keep stock in Italian and Spanish warehouses, so each country needs its own VAT number. Their portal offers the next step, priced, before they think to ask.

  • VAT registration in Italy and Spain: £450 per country, then £95 a month for returns
  • A cross-border tax review: £750 fixed fee, with a written plan
  • Bookkeeping: from £150 a month

Fictional client and example prices. Your catalogue, your prices and your rules for who is offered what.

See the client's side for yourself
VAT & tax edition, client view: Alder Street Imports Ltd's Grow your plan panel. VAT registration and OSS returns active; offers: Italy and Spain registration, a £750 tax review, bookkeeping from £150 a month.
The VAT & tax edition: Alder Street Imports, a fictional client.

Every country, one record

One record per client, with every country beneath it.

Cross-border clients rarely stay in one country: at the first business on EU27, 20 of 52 client companies with country data hold work in two or more countries. Each country sits on the client's record with its status and who holds it.

VAT & tax edition, owner's record of Nordkap Home Goods Ltd: map of Germany, Poland and Czechia by status, 6 of 9 issued or filed, Germany's September return due today, Amazon connected.

Your team's side

Where each country stands

  • Each country with its status: needs you, moving, waiting, done
  • What is blocking each country, and who holds it
  • Every document and message filed on the client's record
Open a client's record

Shown: Nordkap Home Goods, a fictional client in the VAT & tax edition. How many countries a client needs: the data

Partners abroad

Fiscal representatives and partners abroad, each seeing only their part.

The people who file for you in other countries work in the same portal, each in a room in their own language.

  • Each partner sees only their part of the job: their countries, their clients, their files
  • Their room is in their language
  • Partners never write to your clients directly; your desk relays
  • Every hand-over is acknowledged and timed
How partner rooms work
VAT & tax edition, partner room of Davide at Ferraro Rappresentanze Fiscali (Italy, VAT registration): one client, Lumen Outdoor Co. Ltd, and two tasks with the Agenzia delle Entrate.
A fiscal representative's room in Italy, from the VAT & tax edition.

Onboarding, language first

A new client's first screen asks one thing: their language.

English, Deutsch or Français, and the whole portal follows. A client in Germany and a client in France each read their portal in their own language.

How a new client starts

  1. Their languageChosen before anything else. They can change it later from the menu.
  2. Their detailsSaved to their record, and filled in for them when they buy their next service.
  3. Their documentsRequested with due dates, country by country, so nothing is chased by email.

A client onboarding flow built for your services, for example with your engagement letter, is an additional service: £950–£1,950, fixed in writing. Pricing

A new client's first screen in the VAT & tax edition: choose your language, English, Deutsch or Français
The first screen a new client sees, on their phone.

Keep your VAT and tax software

EU27 is not VAT return software. It is the tax client portal around it.

Your team keeps the VAT return software, the Making Tax Digital software and the tax practice management software it already runs. EU27 is what your clients see: their VAT numbers, returns, documents and messages, country by country, in their language. How often cross-border business crosses languages

Your team keeps

The software your practice already runs

  • Your VAT return and Making Tax Digital software
  • Your tax practice management software
  • Your accounting and bookkeeping software

EU27 replaces none of them, and files nothing with a tax authority.

Your clients get

EU27: the part they see and use

  • Their language first. English, Deutsch or Français
  • Messages translated both ways, the original kept beneath
  • Every country on one record, with its status
  • Documents requested with due dates
  • Your next service, with the price first
  • On phone and desktop
Try your client's side
Is EU27 VAT return software?

No. EU27 does not file VAT returns or connect to a tax authority. It is the client portal around your filing: each client's VAT numbers, returns, documents and messages, country by country, in their language, while your team keeps the VAT return software it already uses.

Can clients in other countries use it in their own language?

Yes. Each client chooses English, Deutsch or Français on the first screen, and messages are translated between the languages your clients and your team write in, with the original kept beneath.

Can our partners abroad work in it?

Yes. Fiscal representatives and other partners each get a room in their own language that shows only their countries, clients and files. They never write to your clients directly; your desk relays.

Does it cover client onboarding?

If you are comparing client onboarding software, this is the client's side of it: their language first, then their details, then the documents you ask for, each with a due date. A flow built for your services, for example with your engagement letter, is £950–£1,950. Try the onboarding demo.

Proof and price

Not a prototype. The first business on EU27 is an EU compliance business. Since April 2026: 61 client companies, 24 countries, 899 documents, about one client in nine on a second service.

£4,950–£9,950 setup, then £595 a month. Support, 1 TB and 1 million AI tokens a month included. See pricing and the payback

See it with your services in 20 minutes.

Try it yourselfOpen the portal

No sign-up. Click through it as the owner, a partner and a client.

Open the demo

Prefer no call? Send us your brief and get your setup fee in writing

Also prepare accounts and payroll? See the portal for accounting practices