You set up a SAS in Medellín or Bogotá because your Colombian accountant told you to, or because a client needed to pay a Colombian entity, or because you wanted a clean structure for a small consulting business. It cost very little, took a couple of weeks, and it works.
Then someone mentions Form 5471, and you discover that the US information return attached to that company carries a $10,000 penalty per year — payable even if the company lost money, even if you took nothing out, and even if you owe no US tax at all.
It is one of the costlier things to get wrong as an American running a business in Colombia, and it sits underneath everything else in our US expat taxes in Colombia guide. Here is how it actually works.
Does owning a Colombian SAS mean I have to file Form 5471?
If the SAS is treated as a corporation for US purposes — which is the default for most Americans who never made an election — then very probably yes.
Two definitions drive everything:
| Term | Definition |
|---|---|
| US shareholder | A US person owning 10% or more of the total combined voting power or value of a foreign corporation’s stock |
| Controlled foreign corporation (CFC) | A foreign corporation in which US shareholders own more than 50% of voting power or value on any day of the tax year |
An American who forms a Colombian SAS and holds 100% of the shares meets both. That is not an edge case — it is the standard fact pattern in this niche.
Form 5471 is an information return. It reports the company’s existence, ownership, balance sheet, earnings and transactions with you. It is not a tax return, and the penalty for not filing it is not connected to how much tax you owe.
Which Form 5471 category am I?
The instructions define five categories. Most people in Colombia land in Category 4, Category 5, or both.
| Category | Who it captures |
|---|---|
| 1 (1a–1c) | US persons owning stock in a §965 specified foreign corporation |
| 2 | Officers or directors of a foreign corporation when a US person acquires stock meeting the 10% ownership test |
| 3 | US persons who acquire stock reaching 10%, acquire a further 10%, or dispose of enough stock to fall below 10% — also someone who becomes a US person while meeting the 10% test |
| 4 | US persons with control: more than 50% of voting power or value at any time during the year |
| 5 (5a–5c) | US shareholders of a CFC who owned stock on the last day of the year in which it was a CFC |
The sole American owner of a Colombian SAS is normally a Category 4 and Category 5 filer. That is the heaviest combination. It requires the schedules that report earnings and profits, foreign taxes paid, Subpart F income, tested income for the GILTI calculation, transactions between you and the company, and previously taxed earnings — Schedules E, I, I-1, J, M and P among them.
Category 3 is the one people forget. The year you incorporate is a filing year, because that is the year you acquired stock crossing the 10% threshold.
What is the penalty for not filing Form 5471?
This is the part that changes people’s behaviour.
| Element | Amount |
|---|---|
| Base penalty | $10,000 per foreign corporation, per annual accounting period |
| Continuation penalty | $10,000 for each 30-day period after the 90-day notice period |
| Continuation cap | $50,000 per corporation, per year |
| Foreign tax credit reduction | A percentage reduction of your creditable foreign taxes, stepping up the longer the failure continues — confirm the current percentages with your preparer |
Three things about that table matter more than the numbers.
It applies even if no tax is due. A dormant SAS that never traded still owes the form and still attracts the penalty.
It is per year and per entity. Someone who incorporated in 2021 and has never filed is not looking at $10,000. Two companies and four missed years is a different conversation.
An incomplete return is not a filed return. Because Form 5471 rides with your Form 1040, a return missing a required 5471 can be treated as incomplete — which can keep the assessment window open on the whole return rather than closing it on schedule.
The same penalty architecture — $10,000, plus $10,000 per 30 days, capped at $50,000, plus the foreign tax credit reduction — applies to Form 8865 (foreign partnerships) and Form 8858 (foreign disregarded entities and foreign branches). More on both below.
If you are already several years behind, stop reading advice pages and read about the streamlined filing procedures. Filing five years of late 5471s cold, without a programme wrapped around them, is not the move.
Do I owe US tax on my SAS profits before I take them out? GILTI and Subpart F
Yes — potentially — and this is the second surprise.
Subpart F pulls passive-type income (dividends, interest, rents, royalties, certain related-party sales and services income) into your US return in the year it is earned, whether or not the company distributes anything.
GILTI — renamed net CFC tested income (NCTI) by the One Big Beautiful Bill Act of 2025 — sweeps up most of what is left. For an operating SAS, that means the trading profit.
Without planning, the result is harsh. An individual US shareholder with no §962 election is taxed on the inclusion at individual ordinary rates, with no §250 deduction and no §960 deemed-paid foreign tax credit. The 35% Colombian corporate tax the SAS has already paid gives you nothing. And because there is no US–Colombia income tax treaty, there is no treaty relief waiting behind that.
There are two main routes out, and they are not equivalent.
The §962 election lets an individual be taxed on the inclusion at the 21% corporate rate, with access to the §250 deduction and the §960 deemed-paid credit. The cost is a second layer of tax when the earnings are actually distributed, to the extent distributions exceed the §962 tax paid. There is also a Colombia-specific wrinkle worth raising with your preparer: without a treaty, Colombian-source dividends generally will not be qualified dividends, so that second layer is likely to be taxed at ordinary rates. Confirm that point with a US international tax specialist before relying on it.
The GILTI high-tax exclusion is usually the better fit for a normal Colombian SAS. The exclusion applies where the income was subject to an effective foreign tax rate greater than 90% of the maximum §11 corporate rate — that is, above 18.9% while the US corporate rate is 21%. Colombia’s general corporate rate is 35%, comfortably above that line. A Colombian SAS paying ordinary Colombian corporate tax is therefore a strong candidate for the exclusion.
It is not automatic. The election is made annually by the controlling domestic shareholders, on a tested-unit basis, with a consistency requirement across all US shareholders. A company sitting in a preferential regime — a zona franca user at 20%, for example — needs its effective rate tested properly rather than assumed.
What OBBBA changed, effective for tax years beginning after 31 December 2025
| Change | Effect |
|---|---|
| §250 deduction cut from 50% to 40% | Raises the effective corporate rate on the inclusion from 10.5% (21% × 50%) to 12.6% (21% × 60%) |
| QBAI deemed return eliminated from NCTI and FDII | Asset-heavy businesses lose the shelter they previously got on tangible assets |
| FTC haircut on tested-income taxes eased 20% → 10% | 90% of tested-income foreign taxes now creditable |
| New 10% haircut on foreign taxes attributable to distributions of previously taxed NCTI | Applies to amounts distributed after 28 June 2025 |
The QBAI change is the one with teeth in Colombia. A restaurant, a hotel, a workshop, a manufacturing SAS — anything with real tangible assets on the balance sheet — previously sheltered a slice of earnings through the deemed return on those assets. From tax years beginning in 2026, that shelter is gone. Service businesses with laptops and a lease barely notice; asset-heavy operators very much do.
Is a Colombian SAS eligible to check the box?
This is the highest-stakes question on the page, and it deserves a careful answer rather than a confident one.
The per se corporation list at 26 CFR 301.7701-2(b)(8)(i) names, for Colombia, only “Sociedad Anonima.” A Colombian S.A. is therefore a per se corporation: it is a corporation for US purposes and cannot elect otherwise.
The SAS — sociedad por acciones simplificada, created by Ley 1258 de 2008 — is not on that list. The prevailing reading among practitioners is that it is consequently an eligible entity that can elect its US classification on Form 8832: corporation, partnership, or disregarded entity.
Treat that as the prevailing reading, not as settled law. Whether any particular SAS is eligible, and what its default classification would be absent an election, turns on whether all members have limited liability under Colombian law and on whether any subsequent Treasury guidance bears on it. Have a US international tax attorney confirm the position for your entity before you act on it. The downside of getting this wrong is not a smaller refund; it is filing the wrong penalty-bearing form for years.
Assuming eligibility, the election is a genuine fork:
| Classification | US reporting | Practical consequences |
|---|---|---|
| Corporation (default for most) | Form 5471 | CFC machinery, GILTI/Subpart F, §962 and high-tax-exclusion analysis; profits are not self-employment income |
| Disregarded entity | Schedule C plus Form 8858 | No Form 5471, no GILTI — but the profit is self-employment income, exposed to 15.3% self-employment tax |
| Partnership (multi-owner) | Form 8865 | Category 1–4 rules, with the same $10,000 / $50,000 penalty structure |
If you are still at the formation stage, this choice belongs in the same conversation as SAS versus branch — the Colombian structure and the US classification should be decided together, not six months apart.
The self-employment tax point cuts hard in Colombia specifically, because there is no US–Colombia totalization agreement. A self-employed American resident in Colombia can face US self-employment tax and Colombian social security contributions on the same earnings, with no certificate of coverage to elect out of either and no foreign tax credit to relieve the SE tax layer. That is often the strongest argument for corporate treatment — and the strongest argument for taking the entity-classification question seriously rather than defaulting into it.
What about Forms 8865 and 8858?
Form 8865 applies to US persons with interests in foreign partnerships: Category 1 for control (over 50%), Category 2 for a 10%-or-more interest in a US-controlled partnership, Category 3 for property contributions (a 10% interest immediately after, or over $100,000 contributed within 12 months), Category 4 for reportable acquisitions and dispositions. Category 3 has its own penalty shape — 10% of the fair market value of the contributed property, capped at $100,000, uncapped where the failure is intentional — plus gain recognition.
Form 8858 applies to owners of foreign disregarded entities and to US persons who operate a foreign branch. It also rides along: a Form 5471 filer whose CFC owns an FDE or operates a foreign branch files it too.
There is a trap there worth flagging. An American freelancer in Medellín who registers as a persona natural with a RUT and operates through a Colombian establecimiento de comercio may be operating a foreign branch for US purposes — with no Colombian company, no US tax due, and a $10,000 form they have never heard of. That is a practitioner position rather than a point stated for Colombian registration specifically, so have it confirmed for your facts. But do not assume that “I never incorporated anything” means “I have no international information returns.”
Two more forms travel with a Colombian company. FBAR (FinCEN Form 114) is triggered by signature authority, not only ownership — the American legal representative of a SAS generally has signature authority over its accounts, and the $10,000 aggregate threshold is measured at any point in the year. Form 8938 reports specified foreign financial assets, and a shareholding in a foreign entity counts; for Americans abroad the thresholds start above $200,000 (single) or $400,000 (married filing jointly) at year end, so it bites for larger holdings rather than for everyone.
The exposure, and the two decisions
If you are a US person who owns 10% or more of a Colombian SAS and you have not been filing Form 5471, you have an exposure that grows by $10,000 a year and is not reduced by the fact that you owe no tax. The most likely good outcome is a corporate-treated SAS claiming the GILTI high-tax exclusion on the strength of Colombia’s 35% rate — but the exclusion has to be elected properly, the entity classification has to be confirmed rather than assumed, and asset-heavy businesses need to re-model 2026 now that QBAI is gone.
The two decisions worth taking deliberately are entity classification (corporation, partnership or disregarded) and the annual GILTI election. Both are cheap to get right in advance and expensive to fix afterwards.
We handle the Colombian side of this — the SAS accounts, the Colombian corporate return, the effective-rate evidence your US preparer needs for the high-tax exclusion — and we work alongside US preparers and attorneys on the US side. If you own a Colombian company and are not sure which forms attach to it, get in touch and we will map it out.
Frequently asked questions
I own 25% of a Colombian SAS with three Colombian partners. Am I clear? Not necessarily. A US person owning 10% or more is a US shareholder, and Category 3 filing is triggered by the acquisition itself. Whether the company is a CFC depends on total US ownership exceeding 50%, but your own filing obligation does not wait for that.
My SAS made a loss. Do I still file? Yes. Form 5471 is an information return. The penalty applies whether or not tax is due, and whether or not the company traded.
Does the 35% Colombian corporate tax the SAS already paid cancel out my US tax? Not by itself. Without a §962 election, an individual shareholder gets no §960 deemed-paid credit against a GILTI or Subpart F inclusion. The realistic route to relief is the GILTI high-tax exclusion, or a §962 election — both of which have to be made, not assumed.
Is a Colombian S.A. treated the same way as a SAS? No. “Sociedad Anonima” is on the per se corporation list at 26 CFR 301.7701-2(b)(8)(i), so an S.A. is a corporation for US purposes with no election available. The SAS is not on the list and is generally understood to be an eligible entity — confirm with a US international tax attorney.
I have never filed and I want to fix it. What is the first call? Not a form. Get an assessment of how many years and entities are involved and whether your facts are non-willful, then decide on a route. See our article on the streamlined filing procedures.
General information, not tax or legal advice. Figures verified 9 September 2026; US and Colombian rules both moved materially during 2025 and 2026, so confirm current figures and thresholds before acting. Entity classification of a Colombian SAS for US purposes should be confirmed with a qualified US international tax attorney for your specific facts.