TREATY

Work · Life between places

A business across the UK and US: personal and company tax

A founder's personal move and a company's expansion can happen together, but they are not the same project. Separate your own home, pay and ownership questions from the company's contracts, people and decisions. This makes it easier to find the right professional for each part.

Begin researching

A preparation page, not a residence or filing determination. Filing is not currently available.

Illustration: Two small-business founders in their forties plan a working day at a modest New York apartment table.

Start here

Your cross-border tax questions.

Draw a simple ownership and role map. Include each entity's name, your role and the person responsible for its records, without trying to decide its tax treatment yourself.

  1. Which adviser will review my personal position and which will review the company?
  2. What should I check before changing where I manage or work for the business?
  3. How should I document salary, distributions and ownership changes separately?

Make the next conversation easier

Records for your tax review.

Keep these in your own records. You do not need to send Treaty documents, amounts or personal details.

Illustration: An adult woman and her partner arrange plain unlabeled employment folders at a sunlit home table.
  • Company structure and ownership documents
  • Role agreements and payment records
  • A timeline of business and personal changes

Your next step in tax research.

Prepare two agendas—personal and company—and identify any decisions that need coordinated advice before they happen. Treaty’s public pages do not assess company tax obligations.

Official tax guidance

Use the tax authorities’ guidance for the period and circumstances you are reviewing. These links are starting points, not an answer about your own position.

Want to organise your wider UK–US questions?

The preliminary diagnostic asks you to confirm your own context. Visiting this page does not fill in any answers.

Explore the UK–US diagnostic

Preliminary only—not tax advice. No email, documents or exact amounts required.