Federal and state filing are two separate obligations

The most common US compliance failure among non-resident founders is not getting a number wrong. It is assuming that one filing covers everything.

Two independent systems

The federal government taxes through the IRS. Each state runs its own system with its own rules, rates, thresholds, forms and deadlines, and its own enforcement.

They are not coordinated in the way a single national system would be. Meeting your federal obligation says nothing about your state position, and vice versa. A business can have a federal filing and no state one, a state filing and no federal one, or several state filings and one federal.

The federal question: is your income effectively connected?

For a non-resident, the threshold federal question is whether income is effectively connected with the conduct of a US trade or business.

This is a facts-and-circumstances test about how you actually operate — where the work is performed, where decisions are made, whether you have dependent agents or employees in the United States, and how your activity presents to the market.

It is not answered by your entity type, your formation state, or where your bank account is. A Pakistan-based consultant performing all services from Karachi for US clients is in a different position from one who has a US-based employee closing deals.

Because it is fact-dependent, it needs an actual analysis. Confident free advice on this point is worth what you paid.

The state question: nexus

States apply their own connection tests, and they differ from the federal one and from each other. Physical presence, economic thresholds, employees and inventory all feature.

Critically, a state can require a return where the federal position produces nothing. States are increasingly active with remote and foreign-owned businesses, and they do not wait for the IRS.

And two more clocks

Beyond income tax there are obligations that many founders never connect to "tax filing" at all:

• Franchise tax and annual reports, which are entity-maintenance charges running whether or not you trade.
• Sales tax, which follows your customers and inventory rather than your profit.
• Form 5472, for foreign-owned LLCs, which files in a year of no activity at all.

Four separate clocks, four separate penalties.

Build the map once

1. List every state you have any connection with — presence, employees, inventory, or sales above a threshold.
2. For each, identify what it requires and when.
3. Add the federal obligations, including information returns.
4. Put every deadline in one calendar with an owner against each.
5. Revisit whenever you enter a new state or change how you operate.

That map takes an afternoon and prevents the whole category of failure.

Related guides: Franchise tax and annual reports: the recurring cost, US sales tax nexus for e-commerce sellers and Form 5472 and the foreign-owned single-member LLC.

Build a jurisdiction-by-return grid

List the entity, federal tax classification, owners, states of formation, physical operations, employees, property and sales. Then map each possible federal return or information filing separately from state income, franchise, gross-receipts, payroll and sales-tax obligations. No federal income tax due does not mean no federal information return, and no state income tax does not mean no annual state charge.

For each row, record the trigger, period, due date, extension, payment method and responsible person. A non-resident-owned disregarded LLC is a classic case where an information filing may exist despite little or no income-tax liability. Recheck the grid whenever the business hires, stores inventory, crosses a sales threshold or begins operating in another state.

Sources

This guide is written against the official and clearly labelled professional references below. Rates, thresholds and portal procedures change between reviews, so open the primary source before relying on a figure.

• Businesses (Internal Revenue Service)

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