Resource library

Written by the people who file the paperwork.

We publish what we wish had existed when our customers were starting out: specific, current guides about running a US company from outside the US, and free tools that answer a question in a minute rather than an afternoon.

Browse the free toolsRead the guides

What is in the library. Four guides and sixteen tools.

The Prolify resource library holds four in-depth guides for founders running a US company from outside the US, plus sixteen free tools that check eligibility, estimate cost, generate a compliance calendar or scan an entity's health. Everything is free and nothing is gated.

The four we would hand a founder on day one.

Compliance

Form 5472 explained

Who has to file, when it is due, and what it costs to get wrong. The plain-language version of the filing most foreign-owned LLCs first hear about from a penalty letter.

Formation

The US LLC for non-US founders

Entity, state, EIN without an SSN, banking, taxes and the first-year calendar, in the order you actually need them.

Banking

US banking for founders

How to open a US business bank account from outside the US: what issuers review, how to prepare the application, and what timelines are realistic.

Back office

Replace your vendor stack

What founders end up buying across ten separate vendors, what that costs, and what consolidating it looks like.

16 tools that answer a question in a minute.

All free, none gated, each one built on dated official sources. They are useful before you buy anything, which is the point of them.

Start here

US Company Readiness Diagnostic. Eight answers become a personalised entity, state, EIN, cost, banking and compliance blueprint, in about ninety seconds. Build my blueprint.

See all the tools in one place.

How we publish

Every page says who wrote it and when it was last checked.

  • →Guides carry a last-reviewed date, not a publish date. A date that never moves is not freshness.
  • →Regulated claims, meaning filings, thresholds, deadlines and eligibility, cite the authority they come from by name and link.
  • →Where we do not know, the page says so instead of rounding the gap into confidence.
  • →When we get something wrong we correct it in the open, and the correction stays on the record.

how we research, review and date every page · the corrections we have published

Country guides are being written. They are not published yet.

We are drafting country-by-country guides covering entity recommendation, treaty position, banking pathway and the mistakes that are common from each country. They are in review and not publicly available, and we would rather say that than link you to something that is not finished. Need one of these now? Talk to our team.

Related. Where to go next.

form the US entity in the first placewhat a US entity owes, and whenrun the company after it is formedlaunch and run a US company from anywherethe founder course librarywhy founders move their entity across

Read it first. Then decide.

Everything in the library is free and ungated. When you want the company itself handled, that is what Prolify does.

See pricingBrowse the free tools