Who has to file Form 8991?
A United States corporation comes within it on two tests, not one. It has to be above the receipts threshold the rules set, and it has to be making deductible payments of a material size to foreign affiliates: service fees, royalties, interest and similar amounts that reduce United States taxable income and land with a related party abroad. A large corporation with no intercompany payments going out is in a different position from a smaller one with many. Both halves need testing each year, because a group can drift over the receipts line, or rearrange its charges, without anyone treating either as a tax decision.
Does arm's length transfer pricing keep us out of this?
No, and that is an expensive misunderstanding. The computation attacks the deduction, not the price. A service fee, royalty or interest charge that is fully supported by a transfer pricing study, benchmarked and documented, still reduces United States taxable income and still goes into the measure. Getting the pricing right protects you from a pricing adjustment. It does nothing about a minimum tax triggered by the existence of the deductible payment itself. Groups that treat the two as one question tend to find out when the computation produces a liability they had made no plan for.
We are under the receipts threshold, so do we still file?
The receipts test is one of the two gates, so a corporation below it stands differently from one above. What we would not do is treat last year's conclusion as this year's. Receipts move, group membership changes, and the test looks at the corporation together with related parties rather than at one company's own sales, so an acquisition elsewhere in the group can change the answer without anything happening in the United States entity. Document the test each year with the figures you used. A conclusion with no working behind it is hard to defend later.
Do interest payments to a foreign parent count?
Interest on intercompany debt is a deductible payment to a related foreign party, which is precisely the shape the computation is aimed at. That makes the funding decision a tax computation rather than a treasury preference: the same capital put in as equity produces no deduction and no payment abroad, while debt produces both. Neither is automatically better, because the deduction has value and the minimum tax may not bite. What we advise against is settling the funding mix on the strength of interest relief alone, and meeting the other side of it at filing.
Does a management fee from our Canadian parent to the US company count?
It is the right question to ask of it. A management or service charge from a Canadian parent to its United States subsidiary is a deductible payment by that subsidiary to a related foreign party, so the first step is to look at what the charge actually covers and how it is invoiced. Groups often bill one monthly amount that mixes elements of very different character. Splitting the charge on a basis the invoices and the underlying work can support is what makes the computation possible at all, and it usually has to happen before anything else.
Do we file if the computation produces no extra tax?
Work it out before assuming the answer. A nil result is a conclusion reached through a computation, and the computation is what the form carries. A group that has done the work and shown nothing owing stands better than one that decided there was nothing to do. Keep the workings for the year even where no liability arises, because the following year's position is often argued from the previous one, and because the receipts and payment figures you used are the evidence that the test was applied at all.
Does a foreign-owned US entity need an EIN?
Yes, for almost anything it must do: file its returns, operate payroll, open a bank account, and act as a withholding agent on payments abroad. It is applied for on Form SS-4, and the part that stalls foreign owners is the responsible party — a real person with a US identification number is expected, and where none exists the application route and the supporting explanation both change. It is worth starting early because downstream registrations queue behind it. See EIN applications.
Which business structure has double taxation?
The corporation — specifically a US C corporation, where profit is taxed to the company and the dividend again to the shareholder. Sole proprietorships, partnerships and LLCs treated as flow-throughs are taxed once, in the owners' hands. Across borders that tidy answer breaks: an entity treated as a flow-through in one country can be opaque in the other, which produces a mismatch neither system planned for. See LLC against corporation for Canadians.