Business Insights & Updates

W-8BEN, W-9, and 5472 Explained: What Every Founder Must Know

W-8BEN, W-9, and Form 5472 are the three IRS forms that define every foreign founder's US tax identity — and confusing them costs thousands. This guide breaks down exactly what each form does, who submits it, when it applies, and how they interact inside a real foreign-owned US LLC operation.

Do You Need to File Taxes If Your US Company Has No Income?

A US LLC with zero revenue is not a company without obligations. Foreign-owned LLCs face a mandatory $25,000-penalty filing requirement regardless of income, and state compliance deadlines run whether or not the business is active. This guide explains exactly what a dormant US company owes — federally, at the state level, and when dissolution is the smarter move.

How to Get an EIN Without an SSN or ITIN (Full Guide)

Every US company needs an EIN — but non-residents can't use the IRS online portal. This full guide covers all three application pathways for foreign founders, common mistakes to avoid, and how CORPIUS accelerates the process from weeks to days.

How Fast Can You Register a US Company? Real Timeline Explained

Under the right conditions, a US company can be legally registered in under 24 hours. But full operational readiness — banking, EIN, compliance — takes longer. Here is the real timeline, state by state, and how CORPIUS helps founders move faster without cutting corners.

US Company Formation for Non-Residents: Everything You Need to Know

Forming a US company as a non-resident has never been more accessible — or more consequential if done wrong. CORPIUS provides the complete formation infrastructure for international founders: entity selection, EIN, banking, and ongoing compliance, all from a single platform built for the global entrepreneur.

How to Open a US Business Bank Account Without an SSN: Complete Guide for Non-Residents

The Social Security Number was created in 1936 to track retirement benefits. It was never designed to be the primary gatekeeping credential for the American financial system — and yet that is precisely what it became for international founders trying to open a US business bank account. CORPIUS built this guide from operational experience navigating the US banking system for international founders across dozens of countries — not from publicly available guidance, but from doing it repeatedly, learning what fails at traditional institutions and why, and understanding exactly what the fintech ban

Do You Need an LLC for Your Online Business? Shopify, Amazon, and Freelancers Explained

Sole proprietorship is not a choice — it is what the law assigns the moment revenue is generated and no entity exists to receive it. Every Shopify merchant, Amazon seller, freelance contractor, and monetized creator is operating inside a legal classification that provides no asset separation, no tax efficiency architecture, and no credential stack for enterprise access. CORPIUS wrote this for the digital entrepreneur who has not yet had the event that makes the LLC decision feel urgent — because that event should not be the reason the decision gets made. Built exclusively for CORPIUS. No templ

Best States to Form an LLC in 2026: Delaware vs Wyoming vs Florida (Full Comparison Guide)

Delaware, Wyoming, and Florida each represent a completely different legal philosophy and serve a completely different founder profile. CORPIUS built this analysis for founders who need a decision framework that starts with their business — not a fee comparison that starts with a filing schedule. Entirely original. Exclusively CORPIUS. No template, no borrowed structure, no recycled reasoning from anyone else in the formation industry.

How Much Does It Cost to Start an LLC in the US? Full 2026 Breakdown with Hidden Fees Explained