Tax returns & amendments
Filed right, deductions found.
- Individual and business federal and state returns
- Prior-year and amended returns
- Plan members get 15–20% off or a $1,000 credit
Tax Services
International tax specialists for small business.
Foreign owners abroad, immigrant and Brazilian families living here as U.S. residents, income on both sides of the border: we handle these requirements every day and have done so for over 10 years. 100% accurate returns and the best result the documents allow — guaranteed.
Services
Pick the result you need
ITIN — Certifying Acceptance Agent
Your passport stays with you.
- We certify your documents directly for the IRS
- No mailing originals, no waiting for their return
- Applications for you, your spouse and dependents
Foreign income & reporting
Reported once, taxed once.
- Form 5472, 1120-F and other foreign-owner filings
- FBAR and Form 8938 for accounts and assets abroad
- Treaty positions and foreign tax credits applied
Estimated taxes
No April surprise, no penalty.
- Projections based on this year, not last year
- Federal and state payments scheduled
- Safe-harbor check before every quarter
IRS & state notices
Letters answered before they cost you.
- Responses to IRS and state notices
- Penalty abatement requests where available
- Back-year catch-up and payment plans
Opening a company?
Formation, EIN, registered agent and state filings live on their own page.
See formation packages →Need bookkeeping or payroll?
Monthly accounting, payroll, sales tax and annual reports come with a monthly plan.
See monthly plans →International tax
Foreign requirements are our daily work
Foreign requirements are not an exception here — they are our daily work. For over 10 years we have handled U.S. tax and compliance for people whose life, income or business crosses a border.
Non-resident owners of U.S. companies
- LLC and corporation owners living outside the U.S.
- Form 5472 with 1120, and 1120-F where required
- ITIN applications certified by us, so your passport stays with you
- U.S.-source income, withholding and treaty positions reviewed
New immigrants and visa holders
- Your first U.S. tax year, including dual-status returns
- Foreign income, pensions and rental property abroad
- Foreign account and asset reporting (FBAR, Form 8938)
- Residency, dependents and ITINs for spouse and children
Immigrants already living here as U.S. residents
- Brazilian and immigrant families filing as U.S. residents
- Worldwide income reported correctly, without double taxation
- Property, accounts and income still held in Brazil
- Catch-up on prior years and amended returns
Our guarantee
100% accurate returns, guaranteed
We guarantee 100% accurate returns and the best possible result based on the documents we receive from you — reviewed twice before anything is filed.
How it works
Four steps, no mystery
- 01
Initial intake
In your language. We look at where you are and the plan for the service you need — a consultation is recommended based on complexity.
- 02
Clear scope and investment
You get the plan or the service, the investment and the deadlines in writing before anything starts.
- 03
We do the work
Communication and document sharing through a secure portal, to guarantee the digital safety of sensitive data.
- 04
You stay ahead
A compliance calendar keeps every deadline in front of you instead of behind you.
Client reviews
What clients say
“
This is the third year that I have done my taxes with Office Tax Services, because they are organized, attentive and competent. I highly recommend it!
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I've been doing my taxes with Office Tax Services for more than 5 years now and I'm beyond satisfied. Their customer service is excellent. They are very responsive, friendly, helpful and always get the best results for you. I wish I could give more than 5 stars. I highly recommend their service!
“
I think I already left a review here, but it doesn't hurt to leave another one. I have filed my taxes with Office Tax since 2019 (business and personal). The team is always super helpful and clears up questions quickly. The portal is practical and feels secure. Highly recommend!
Ready to work together?
Bring your questions and your last tax return. We will tell you exactly where you stand.