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Cross-border tax filing and accounting servicesCross-border tax filing and accounting

Wang Law Firm, LLC · David Wang, Managing Attorney · Attorney-reviewed · Updated October 2026

Start here: Our firm’s tax team handles tax filing, foreign asset reporting and bookkeeping in both the United States and Canada for individuals and businesses. Tax filing and accounting services are not legal services; where immigration or legal issues are also involved, attorney David Wang assesses them separately. The scope of services and fees are set out in the engagement agreement.

Many clients’ taxes involve more than one country: how to file in the first year after getting a green card, whether accounts and real estate in China or Canada must be reported, whether there is a departure tax when leaving Canada, how to keep the books of a company opened in the United States. We look at tax filing and immigration status together, to avoid inconsistencies between the status, income and filing history shown on tax returns and what appears in immigration applications over time.

Services

ServiceIncludesWho it suits
U.S. individual tax returnsForm 1040, 1040-NR; dual-status years (the year you get a green card or leave the United States); married filing jointly or separately; state tax returnsNew immigrants, green card holders, H-1B, F-1/OPT, residents abroad with U.S. income
Foreign asset reportingFBAR (FinCEN 114), Form 8938, 3520 (foreign gifts and inheritances), 5471, 8621 (PFIC); preparation of late filings after missed reportingPeople with accounts, investment products, rental income or company equity in China, Canada or other countries
Canadian tax returnsIndividual returns (T1), corporate returns (T2), returns for the year of moving to or leaving Canada, including the deemed disposition on departure (departure tax); GST/HSTPeople with income, real estate or a company in Canada, or who move between the U.S. and Canada
Business bookkeeping and financial statementsFull-cycle bookkeeping, bank reconciliation, payroll and withholding, U.S. business tax returns, preparation of financial statementsInvestors who open companies in the United States (including E-2, L-1 and EB-5 clients), small businesses

Our tax team

David Wang

Managing Attorney

Versed in U.S. tax and immigration law. Handles legal questions where immigration and tax meet, gives tax-related legal advice and oversees the team’s cross-border tax work.

Helen Hu

Tax Accountant · Chicago office

Trained in accounting in the United States and Canada, with a focus on tax compliance and planning. Prepares individual and business returns, cross-border filings, bookkeeping and financial statements for international clients. MS in Accountancy (Tax Compliance & Planning), Walsh College.

Linda Xiao

U.S. Certified Public Accountant (Washington) · Toronto

Focuses on business financial reporting, U.S. individual and business tax planning, and cross-border tax compliance, providing practical tax solutions for high-net-worth individuals, businesses and cross-border investors with an emphasis on compliance and risk management. Honours Bachelor of Commerce in Accounting, York University; Ph.D. in Polymer Materials and Engineering, Dalian University of Technology.

Why tax filing should be considered together with immigration

Main filing deadlines

FilingGeneral deadlineNotes
U.S. individual income tax (1040)April 15You can request an extension to file the return until October 15, but any tax owed must still be paid by April 15; if you live outside the United States, there is an automatic two-month extension
FBARApril 15Automatic extension to October 15; no request needed
Canadian individual income tax (T1)April 30For self-employed individuals the return is due June 15, but any tax owed must still be paid by April 30
Canadian corporate income tax (T2)Within 6 months after the end of the fiscal yearThe tax payment deadline is usually earlier; follow the rules of the Canada Revenue Agency

Deadlines that fall on a weekend or holiday may be extended; rely on what the IRS, FinCEN and the Canada Revenue Agency (CRA) publish for the year in question.

How to get started

  1. Book: On the booking page, choose “Tax filing and accounting” and briefly describe which year and which country you need to file for, and what income and assets you have.
  2. Quote: We quote based on the types of filings and their complexity, and the quote is written into the engagement agreement. For how we charge, see our fee policy.
  3. Gather documents: Identity documents and your visa or green card, prior years’ tax returns, income records (W-2, 1099, T4, T5, etc.), a list of foreign accounts and assets, and company books.
  4. Review and sign: Once the returns are complete, we go through them with you item by item; after you confirm they are correct, you sign and they are filed, and you keep copies for future immigration applications.

Frequently asked questions

How do tax filing services differ from attorney services?

Tax filing and accounting are law-related services but are not legal services, and some of the protections of the attorney–client relationship (such as the attorney–client privilege) may not apply. The engagement agreement states the nature of the services. Questions involving immigration consequences, tax disputes or the need for a legal opinion are assessed separately by attorney David Wang.

Can you help if I am not in the United States?

Yes. Documents can be submitted electronically, and we communicate by phone or video.

I did not file FBARs for several past years. What should I do now?

There are legitimate channels for late filing, with different eligibility conditions, in particular whether the failure was non-willful. We recommend an assessment before filing late, and it is especially important to deal with this before naturalization or other immigration applications. See FBAR and foreign asset reporting.

Do you provide Chinese tax services?

No. Our firm does not advise on Chinese tax law; for filings in China, please consult a tax professional in China.

Related reading

Need to file taxes or organize your books? Book tax filing and accounting services › Call (312) 519-1115, or reach the attorney on WeChat at WangLawpllc.

This page is a general introduction and is not legal or tax advice. Tax filing and accounting services are not legal services; the specific scope is governed by the engagement agreement. Tax rules, filing deadlines and thresholds may change each year; rely on what the IRS, FinCEN and the Canada Revenue Agency officially publish. Our firm does not advise on Chinese tax law.