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Accounting & Finance

International Tax Compliance

Cross-border tax compliance, treaty analysis, and disclosure reporting.

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Overview

What we deliver

We handle international tax compliance including treaty positions, transfer pricing documentation, and required cross-border disclosures.

We support companies and individuals with cross-border activity by handling the compliance and disclosures required across the United States, United Kingdom, Canada, and Australia. For businesses, we prepare Forms 5471, 5472, 8865, 8858, and 1118 for US filers, Country-by-Country Reports and Pillar Two disclosures where applicable, UK Controlled Foreign Company reviews, and transfer pricing documentation aligned with OECD guidance. For inbound and outbound transactions, we apply treaty positions, manage withholding tax obligations, and document permanent establishment positions. We coordinate with local advisors in non-core jurisdictions to ensure consistent treatment across the group. For individuals, we handle dual-resident analysis, treaty tie-breaker positions, and foreign tax credit planning. We also support voluntary disclosure programs when prior filings need to be corrected. The work is documented with workpapers and memos so positions hold up under IRS, HMRC, CRA, or ATO review.

Fit Check

Built for teams like yours

Who it's for

  • Multinational groups with US, UK, Canadian, or Australian entities
  • Companies setting up foreign subsidiaries or branches
  • Founders relocating across borders
  • Investors with cross-border holdings
  • Finance teams facing Pillar Two or CbCR obligations

Pain points we solve

  • Missed international information return filings
  • Inconsistent transfer pricing documentation
  • Unclear withholding tax obligations on cross-border payments
  • Treaty positions not supported by analysis
  • Penalties for late or incomplete disclosures
What's included

Capabilities

Everything we cover in this engagement.

  • International information returns (5471, 5472, 8865, 8858)
  • Transfer pricing documentation and benchmarking
  • Country-by-Country Reporting and Pillar Two analysis
  • Treaty position analysis and memos
  • Withholding tax and Form 1042 compliance
  • FBAR and FATCA disclosures
  • Permanent establishment review
  • Voluntary disclosure and remediation
How we work

Our process

A clear, predictable path from kickoff to outcomes.

01

Map

Document entities, ownership, and cross-border flows.

02

Analyze

Review treaties, PE risk, and information return requirements.

03

Document

Prepare transfer pricing files and position memos.

04

File

Submit returns and disclosures on each due date.

05

Monitor

Track rule changes and update positions.

What you get

Deliverables & outcomes

What you get

  • Filed international information returns
  • Transfer pricing master file and local files
  • Treaty position memos
  • Withholding tax schedules and Form 1042 filings
  • CbCR and Pillar Two workpapers
  • Voluntary disclosure submissions when applicable

Outcomes you can expect

  • Complete and on-time international filings
  • Defensible transfer pricing documentation
  • Clear treaty and withholding positions
  • Reduced exposure to international penalties
  • Coordination across the group's filings
Timeline

ongoing with annual filing cycles

Engagement

Monthly retainer, Project, Sprint

Tools we use

CCH Axcess International, ONESOURCE, TPCatalyst, Alteryx, NetSuite

KPIs we track

information returns filed, transfer pricing coverage, withholding accuracy, penalty exposure, jurisdictions covered

Client stories

What clients say

"

Our old site was a Frankenstein of three previous agencies. We gave them a hard launch date tied to a trade show and they actually hit it. 47 templates, full product catalog migration, no broken redirects on go-live day. Our previous vendor missed the same deadline twice. This time my phone stayed quiet on launch morning.

Marcus L.
"

We were drowning in tier-one tickets about password resets and appointment changes. They built a deflection layer on top of our help desk and kept their agents in the loop for anything sensitive. Volume to humans dropped 58 percent in two months and our patient NPS held steady. The hybrid handoff is the part most vendors get wrong. They did not.

P.M.
Proof

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FAQ

Frequently asked questions

Quick answers to the questions we hear most.

Do we need transfer pricing documentation?
If you have intercompany transactions across borders, most jurisdictions require contemporaneous documentation. We assess your thresholds and prepare what is needed.
How do you handle Pillar Two?
We assess in-scope status, gather GloBE data, and prepare disclosures under local implementing rules.
Can you fix missed Form 5471 filings?
Yes. We prepare delinquent forms and pursue penalty relief through reasonable cause or voluntary disclosure programs.
What about withholding on payments to foreign vendors?
We review payments, collect Forms W-8 or equivalents, and prepare Form 1042 and 1042-S filings.
Do you work with local advisors in other countries?
Yes. We coordinate with local firms in jurisdictions outside our core coverage to keep filings consistent.

Have cross-border tax obligations to manage?

Talk with our international tax team about your filings and exposure.

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