U.S. IRS Official Links

Direct links to IRS.gov tools, forms, publications, and international taxpayer resources — verified and organized by Tax Master Inc. CPAs.

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General IRS Tools

Core IRS portals every U.S. taxpayer should bookmark.

IRS.gov — HomeThe official U.S. Internal Revenue Service website. Starting point for all tax information, forms, and tools.

IRS Free FileFile your federal tax return for free if your AGI is $79,000 or less. Guided software options available.

IRS Online Account (Transcripts, Payments, Notices)View your tax records, make payments, check balances, and respond to IRS notices online.

IRS All Forms & InstructionsComplete library of every IRS form and instruction booklet, searchable by form number or keyword.

IRS All PublicationsOfficial IRS publications explaining tax law in plain language. Searchable by topic or publication number.

IRS Tax Due Dates CalendarKey federal tax deadlines for individuals, businesses, and employers — updated annually by the IRS.

IRS Withholding EstimatorCheck if you're withholding the right amount of tax. Useful after a major life event or income change.

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International & Cross-Border Forms

IRS resources specifically for non-residents, dual-status filers, and U.S.-Canada cross-border situations.

IRS International Taxpayers — OverviewHub page for non-residents, dual-status filers, and U.S. citizens abroad. Links to all relevant resources.

IRS ITIN Information (Form W-7)How to apply for an Individual Taxpayer Identification Number — required for non-residents without an SSN.

IRS — About Form 1040-NRU.S. Nonresident Alien Income Tax Return. Required for foreign individuals with U.S.-source income.

IRS — About Form 1120-FU.S. Income Tax Return of a Foreign Corporation. Required for foreign corps with U.S. trade or business income.

IRS — About Form 5472Information Return of a 25% Foreign-Owned U.S. Corporation. $25,000 penalty for non-filing.

IRS — About Form 8938 (FATCA)Statement of Specified Foreign Financial Assets. Required if foreign assets exceed $50,000 (single/MFS year-end).

IRS — About Form 8833 (Treaty Position Disclosure)Required when claiming treaty-based return positions that override or modify U.S. tax law.

IRS — About Form W-8BENCertificate of Foreign Status of Beneficial Owner. Non-residents use this to claim reduced withholding rates.

IRS Publication 901 — U.S. Tax TreatiesOfficial IRS publication summarizing treaty benefits for residents of treaty countries. Includes the U.S.–Canada treaty.

IRS Topic 856 — Foreign Tax CreditHow to claim a credit for foreign taxes paid to avoid double-taxation on the same income.

IRS Record Retention GuideHow long to keep tax records for individuals and businesses. Key for audit readiness.

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FinCEN / FBAR Links

Important: FBAR vs. Form 8938

FBAR (FinCEN 114) and Form 8938 are two separate legal requirements. Filing one does NOT satisfy the other. Many taxpayers with Canadian bank accounts, RRSPs, or TFSAs must file both.

FinCEN BSA E-Filing System — File FBAR OnlineOfficial portal for filing the FBAR (FinCEN Form 114) electronically. Due April 15; auto-extends to October 15.

FinCEN FBAR FAQ (PDF)Official FinCEN guidance document answering common FBAR questions about filing requirements, accounts, and penalties.

IRS FBAR Overview — Who Must FileIRS explanation of FBAR requirements, thresholds ($10,000 aggregate), and how it differs from Form 8938.

Need Help With an IRS Form?

Tax Master Inc. prepares 1040-NR, 1120-F, Form 5472, FBAR, Form 8938, and all cross-border filings. Loudoun County, VA.

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