Entity Formation• LLC / C-Corp / S-Corp
US Business Incorporation · Bylaws & EIN One-Stop
Complete US entity formation covering Secretary of State filings, corporate bylaws, operating agreements, and IRS EIN acquisition with bilingual CPA tax structuring.
New US Startup Founders
Establishing LLCs or C-Corps to protect personal assets and attract investor capitalization.
New StartupSole Proprietor to Corporate Transition
Transitioning sole proprietorships into corporations to optimize tax bracket structures.
Sole Prop to CorpKorean Companies Expanding to US
Establishing US subsidiaries or branch offices for Korean corporate parents.
US SubsidiaryStart with an LLC for liability shield or C-Corp for fundraising, then elect S-Corp tax status as profits grow to minimize taxes.
Full corporate kit delivered with state-certified articles, bylaws, and official IRS EIN CP575 confirmation letters.
Key Features & Core Benefits
Strict IRS compliance and maximum refund accuracy.
Entity Choice & Tax Structuring
Comparing pass-through taxation versus corporate tax rates for maximum tax efficiency.
State Incorporation Registration
Filing Articles of Incorporation/Organization with the state Secretary of State office.
Corporate Bylaws & Operating Agreements
Drafting state-compliant Corporate Bylaws and LLC Operating Agreements.
Shareholder Equity & Stock Issuance
Structuring authorized share counts and par value definitions for initial equity distribution.
Foreign Ownership & Capital Inflow
Guiding non-resident foreign shareholder rules and international capitalization protocols.
EIN & Business Tax Account Setup
Direct transition to IRS EIN acquisition and state business tax account setups.
Simple 4-Step Process
Track your filing progress transparently online.
Name Check & Structure Choice
Conducting state name availability searches and finalizing corporate entity forms.
State Formation Registration
Filing Articles of Organization/Incorporation with state agencies.
Bylaws & Operating Agreement Draft
Formulating legal bylaws, initial organizer resolutions, and operating agreements.
EIN & Corporate Kit Delivery
Delivering completed corporate binders with official state approvals and IRS EIN letters.
Frequently Asked Questions
Find clear answers to common questions about filing US taxes with TPT Tax.
Real Reviews from Satisfied Clients
Read authentic, verified 5-star reviews from clients who trusted TPT Tax with their US filings.
Michael R.
07/19/2026
Top Priority Tax made my US tax filing seamless and completely stress-free. Exceptional bilingual CPA team!
Jessica S.
07/14/2026
Extremely prompt, professional, and knowledgeable. They saved me thousands on my business tax return with great advice.
Daniel K.
07/08/2026
The 24/7 online portal is so convenient. My W-2, crypto, and stock gain tax reports were processed flawlessly.
Robert L.
07/02/2026
Best accounting and tax advisory service I have used in California. Highly recommended for all expats and freelancers!
Form Your US Business Entity Today
One-stop corporate formation including Secretary of State filing, bylaws, and official IRS EIN CP575.