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401(k): How the Retirement Plan Works in the USA
Understand the 401(k) plan, its types, contribution limits in 2026, and tax advantages for those living in the United States.
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Dividends from American Companies: Taxation for Foreign Investors
How the US taxes dividends paid to foreign investors and tax residents: rates, withholding, IRS forms and treaties.
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Taxation of Dividends in the USA for Residents and Non-Residents
Learn how taxes on dividends from American companies work for U.S. tax residents and for Brazilian investors who are non-residents.
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Annual Costs of Maintaining a Company in the USA: Complete Guide
Discover the main annual costs of maintaining a company in the United States: state fees, taxes, insurance, and legal obligations.
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How to Report Cryptocurrency in the US: A Tax Guide for Immigrants
Understand how the IRS taxes Bitcoin, Ethereum, and other cryptocurrencies in the US and learn your tax obligations as a resident of the United States.
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US States With No Income Tax: A Complete Guide for Immigrants
Learn about the nine US states that charge no state income tax, their tax trade-offs, and how to plan your move with sound financial strategy.
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U.S. Income Tax Brackets for 2026: What Changes for Immigrants
The IRS released inflation adjustments for the 2026 tax year: new standard deductions, marginal brackets, and what they mean for green card holders and tax residents.
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IRS, Taxes, and U.S. Citizenship: The New Denaturalization Risk
A 2025 DOJ memorandum lists tax crimes among denaturalization priorities. Learn how the N-400 and your tax history could put your citizenship at risk.
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The IRS and U.S. Citizenship: How Tax Compliance Affects Naturalized Citizens
Under the DOJ's 2025 enforcement priorities, tax fraud can now support civil denaturalization proceedings. Here's what that means for naturalized U.S. citizens.
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Retirement in the U.S.: Social Security and Planning for 2026
How Social Security works, retirement ages, the Brazil–U.S. totalization agreement, 401(k), IRA, and long-term planning for Brazilian immigrants in 2026.
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Retirement in the U.S.: Social Security, 401(k), and the Brazil-U.S. Totalization Treaty
How the American retirement system works for Brazilian immigrants: Social Security credits, the bilateral totalization treaty, 401(k) and IRA contribution limits for 2026.
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ITIN in the U.S.: What It Is, Who Needs It, and How to Get Yours
A practical guide to the Individual Taxpayer Identification Number (ITIN), the IRS tax ID for non-residents, covering eligibility requirements, Form W-7, and processing timelines.
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ITIN: The Tax ID for Non-Residents in the U.S. in 2026
Learn what an ITIN is, when it's required, how to apply, current IRS processing times, and how it differs from an SSN for foreign nationals in the U.S.
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Social Security Number: What it is and how it works
Understand what the Social Security Number (SSN) is, its uses, requirements, and importance for working and living legally in the US, similar to the CPF in Brazil.
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