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Business · payroll and accounts

Payroll and statutory accounts for companies employing in the US and the UK

The moment someone works for you in the other country, you take on a second set of payroll rules. We run UK PAYE and US payroll, keep seconded staff in the right social security system, and prepare UK accounts that agree with your US reporting.

Free and no obligation. You get a written scope and fee before any work starts.

The payroll and accounts we run for you

Both payrolls and both sets of books, run by one team.

  • UK PAYEPayroll run and reported to HMRC through Real Time Information.
  • US payrollFederal, FICA and state withholding, with Form 941 and year end filings.
  • SecondmentsCertificates of coverage and shadow payrolls for staff working abroad.
  • UK accountsStatutory accounts under FRS 102, filed at Companies House.
  • US GAAPReporting packs for a US parent, reconciled with the UK accounts.
US CPA and UK CTA under one roof
One coordinated team so both sides agree
Every engagement scoped up front, in writing

When payroll gets complicated across the border

These are the moments employers in the corridor usually need help.

First hire

You are hiring your first person in the other country

A salesperson in New York or an engineer in Manchester, often before you have a local company.

The risk: getting payroll wrong from the first payslip means back tax, penalties and an unhappy new hire.

Secondment

You are sending someone to work abroad

An employee is moving to the other country for months or years but staying on your payroll.

The risk: without a certificate of coverage, social security can be charged in both countries.

Remote staff

Someone moved abroad and kept working for you

An employee now works from the other country, sometimes without payroll knowing.

The risk: you may owe withholding there, and their work can create a taxable presence for the company.

Group reporting

Your UK and US numbers never agree

Your UK subsidiary files FRS 102 accounts while the US parent reports in US GAAP.

The risk: mismatched books slow the year end and raise questions from auditors and investors.

Recognise one of these? Check your own position below.Check who runs payroll
Check your position

Who runs payroll for your employee, and where?

Two quick questions. You will see where income tax is withheld, which social security system applies and what you need to register.

Payroll and social security checker
Question 1Takes under a minute

How the checker works: it covers the four employment situations most common in the corridor. These are a UK company hiring someone who lives in the US, a US company hiring someone in the UK, and employees seconded in either direction. For each, it shows who withholds income tax, which country’s social security applies and which registrations are needed. For example, a UK employee seconded to the US for two years usually stays in UK National Insurance with a certificate of coverage, while US federal and state income tax is withheld from their US pay.

What we do for you

Both payrolls and both sets of books, run by the same team.

UK payroll under PAYE

Payroll run and reported to HMRC through Real Time Information, with National Insurance, statutory pay and auto enrolment handled.

US payroll and withholding

Federal, FICA and state withholding, with quarterly Form 941 filings and year end Forms W‑2 and 940.

Secondments and shadow payroll

Certificates of coverage, shadow payrolls and tax equalisation for employees working in the other country.

UK statutory accounts

Annual accounts under FRS 102, filed at Companies House and prepared alongside the corporation tax return.

US GAAP reporting packs

Monthly or quarterly packs for a US parent, with FRS 102 to US GAAP adjustments explained.

Bookkeeping in two currencies

Books kept in pounds and dollars, with intercompany balances reconciled every month.

Client reviews

What clients say about our payroll and accounts work

★★★★★

First US hire, set up correctly

We hired our first engineer in Texas without a US company. Taxule registered us as a foreign employer, set up federal and state withholding, and flagged the permanent establishment point before it became a problem.
Oliver B.Founder, UK software company
★★★★★

No social security paid twice

Two of our managers moved to London for three years. Taxule got their US certificates of coverage in place and ran the UK shadow payroll, so nobody paid social security in both countries.
Megan S.HR director, US professional services firm
★★★★★

UK and US numbers that finally agree

Our UK accounts and the US parent reporting used to disagree every quarter. Now one team prepares both from the same books and the reconciliation is done before we ask.
Daniel F.Group controller, US manufacturer
Book a free consultationFree and no obligation.

How we work with you

Three stages, handled by one team across both countries.

  1. Map your people

    We list who works where, who employs them and for how long, then confirm the tax and social security position for each person.

    You get: a clear position for every employee before anything is registered.

  2. Set up the payrolls

    We register the employer on each side, apply for certificates of coverage and set up shadow payrolls where needed.

    You get: payrolls ready before the first pay date, on both sides.

  3. Run, report and reconcile

    We run payroll each month, file the returns in both countries and reconcile the books into your accounts.

    You get: payslips, filings and accounts that agree with each other.

Why one team for both payrolls

Many employers use a UK payroll bureau and a separate US provider. This is what changes when one team runs both.

 
Separate UK and US advisers
Taxule
Seconded employees
Home and host payrolls run by different providers
Both payrolls run together, so tax is not paid twice
Social security
Often only considered after the move
Certificates of coverage planned before they travel
Accounts
UK and US books kept separately
UK accounts and US GAAP packs from the same books
Who you ask
Two providers, two sets of answers
One team for payroll, tax and accounts

The payroll rules behind your position

The rules that decide who withholds what, explained in plain English.

Tax follows where the work is done

Employment income is generally taxed where the duties are performed. A UK employee working in New York is within US tax on those workdays, even if paid from London.

US and UK treaty, Article 14

Social security has its own agreement

The US and UK social security agreement stops contributions being paid in both countries. A seconded worker expected to stay up to five years usually stays in their home system.

US and UK Social Security Agreement

The 183 day test is narrower than it sounds

The treaty exemption only works if the employee is present 183 days or fewer in a 12 month period and a local employer or permanent establishment does not bear the cost.

US and UK treaty, Article 14(2)

US states follow their own rules

Federal withholding may be exempt under the treaty while state income tax is still due, because US states are not bound by it.

Employees can create a taxable presence

Staff in the other country, particularly those who negotiate or sign contracts, can create a permanent establishment for the employer.

US and UK treaty, Article 5

Two sets of accounts, one group

A UK private company files accounts at Companies House within nine months of its year end, while the US parent reports in US GAAP. The two must reconcile.

Companies Act 2006, section 442

Your payroll and accounts questions

Straight answers to what HR and finance teams ask us first.

Can a UK company employ someone in the US without a US company?

Yes. It can register as a foreign employer with the IRS and the state, or use an employer of record. It should first check whether the employee’s work creates a US permanent establishment.

Does a US company need to run UK PAYE for a UK employee?

If it has a UK presence, yes. Without one, it can register with HMRC as an overseas employer. Otherwise the employee may need to pay their own tax and National Insurance.

Which country’s social security applies to a seconded employee?

Under the US and UK social security agreement, an employee seconded for up to five years usually stays in their home system, with a certificate of coverage.

What is a shadow payroll?

A payroll run in the host country to report and pay local income tax for an employee who is still paid through their home country payroll.

When are UK statutory accounts due?

A private company must file its accounts at Companies House within nine months of the end of its accounting period, as well as filing its corporation tax return.

How much does cross border payroll cost?

It depends on how many employees and payrolls are involved. After the free consultation, we agree the scope and fee with you in writing before any work starts.

Pay your people correctly on both sides from the first payslip.

Tell us who works where. We will map the payroll, social security and accounts you need, and set them up before the next pay date.

  1. Tell us about your businessShare a few details through our contact form.
  2. Talk it through for freeA consultation with an adviser, with no obligation to go ahead.
  3. Get a written scope and feeIf you want our help, you know exactly what we will do and what it costs before we start.

Ready to put one firm on both sides?

Tell us your situation — no obligation — and we'll tell you exactly what you need across the US and UK, and what it costs, up front.

Tell us how the business is structured — no obligation — and we'll map what's needed on each side, with a fixed price before any work begins.

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