Yes, a foreigner can buy land inside Brazil’s 150-kilometre border strip. But the deed is only safe if the federal government said yes before you signed, and most buyers only discover that rule after the money has left their account.
Brazil’s Constitution treats a 150 km band along every land frontier as territory “essential to national defence”. Inside that band, called the faixa de fronteira (border strip), the acquisition of land by a foreigner, or by a Brazilian company controlled by foreigners, depends on a prior administrative authorisation known as assentimento prévio (prior assent), issued by the Secretariat of the National Defence Council within the Institutional Security Cabinet of the Presidency (GSI).
Here is the part that ruins otherwise clean deals: the strip is invisible. There is no sign on the road. Towns that nobody would call “border towns” sit entirely inside it. And because Brazil follows a Civil Law system where a real estate transfer only exists once it is registered at the cartório de registro de imóveis (real estate registry office), a purchase made without the authorisation can be refused at registration or, worse, registered and later annulled.
This article answers the questions foreigners actually type into Google about border-zone land: what the rule is, what it costs, how long the authorisation takes, and the situations where the restriction does not apply at all.
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What Exactly Is Brazil’s 150 km Border Strip?
The faixa de fronteira is a strip 150 km wide measured inward from Brazil’s land borders, defined by Article 20, paragraph 2, of the Federal Constitution as fundamental for territorial defence. According to the Ministry of Integration and Regional Development, it covers 588 municipalities across 11 states, from Roraima to Rio Grande do Sul.
The 11 states are Acre, Amapá, Amazonas, Mato Grosso, Mato Grosso do Sul, Pará, Paraná, Rondônia, Roraima, Rio Grande do Sul and Santa Catarina. Brazil borders ten countries, so the strip is enormous and, in large parts of the Amazon and the Centre-West, it is where the cheapest and most attractive agricultural land happens to be.
The trap is geographic intuition. Buyers assume “border” means a bridge, a customs post and a flag. In practice, municipalities such as Dourados (Mato Grosso do Sul), Chapecó (Santa Catarina) and Cascavel (Paraná) are inside or partly inside the strip. A farm can be a four-hour drive from any frontier crossing and still fall within 150 km of a border line that runs through forest or river.
Important: A property can be only partially inside the strip. If any portion of the registered perimeter falls within the 150 km band, the authorisation requirement attaches to that purchase. Splitting the deed to “leave out” the affected part does not solve it; it usually creates a second, harder problem at the registry.
How do you check? Three documents, in this order: the matrícula (registry record) of the property, the georreferenciamento (georeferenced survey) with the exact coordinates of the perimeter, and the municipality’s status on the official border-strip list. Anything else, including the seller’s confident assurance, is guesswork.
What Does the Law Require Before a Foreigner Buys Border-Zone Land?
Under Law 6.634/1979 and the decree that regulates it, acts involving land inside the border strip by foreigners or foreign-controlled entities require prior assent from the Secretariat of the National Defence Council. The word “prior” is doing all the work: the authorisation must exist before the transfer, not after.
If the land is also rural, a second and completely separate regime applies at the same time: Law 5.709/1971, enforced by INCRA (the federal land reform agency). That law limits how many módulos rurais (rural modules, a regional unit of area) a foreigner may own, requires INCRA authorisation above a small threshold, and reserves the largest acquisitions for approval by the National Congress. We covered that layer in detail in our guide on foreigner limits and INCRA authorisation for rural land.
So a rural farm inside the strip needs both: INCRA clearance and the border-strip assent. Two agencies, two files, two timelines. Buyers who only handle one of them routinely stall at the registry.
The typical document set for the assentimento prévio request includes:
- Passport and CRNM (National Immigration Registration Card), if you hold Brazilian residency
- CPF (Brazilian individual taxpayer number) of the buyer
- Updated matrícula of the property, issued within the last 30 days
- Georeferenced survey showing coordinates and total area
- Draft of the purchase agreement or escritura (public deed)
- Statement of the intended use of the land (agriculture, livestock, tourism, residence)
- For companies: CNPJ (company tax number), articles of association, and a full chart of the ownership chain up to the ultimate beneficial owners
- Procuração (power of attorney) if you are not signing in person, notarised and apostilled abroad, then sworn-translated in Brazil
Warning: Putting the deal inside a Brazilian company does not neutralise the border-strip rule. Since the Attorney General’s Office issued its binding 2010 opinion on foreign land ownership, a Brazilian company controlled by foreign capital is treated, for these purposes, like a foreign buyer. Law 6.634/1979 also imposes Brazilian-capital and Brazilian-management requirements on companies engaged in certain border-strip activities, including mining, colonisation and rural settlement projects.
Why Do So Many Foreigners Lose This Right Without Knowing It?
Because the requirement is prior and the penalty is nullity. An act performed in the border strip without the required assent is void, not merely irregular, under Law 6.634/1979, and nullity has no expiry date in the way a fine does. Most buyers find out years later, when they try to sell, mortgage or inherit.
Five recurring failure points, in the order we see them:
- Nobody checked the coordinates. The realtor sold a “farm near Bonito” or “land outside Foz do Iguaçu” and nobody opened the georeferenced survey.
- The cartório did not catch it. Registries vary in rigour. Some flag the strip immediately; others register a deed that should never have been registered, which gives the buyer false comfort.
- The authorisation was requested after signing. Retroactive assent is not how the system is designed. Regularising later is possible in some cases, but it is slow, discretionary and far more expensive than doing it first.
- Nominee structures. A Brazilian friend, spouse or employee on the deed while the foreigner pays. This is simulation, void under the Civil Code, and it exposes the foreigner to losing both the land and the money.
- Succession. The heirs of a void purchase inherit a litigation file, not a farm.
Practical example: A German couple bought 80 hectares in Mato Grosso do Sul for R$ 1,000,000 through a Brazilian company in which they held 99% of the quotas. The deed was registered. Four years later, a buyer offered R$ 1,600,000 and his lawyer’s due diligence flagged that the land sat 120 km from the Paraguayan border with no assent on file. The resale collapsed. The regularisation file, including survey corrections, INCRA filing and the GSI request, cost roughly R$ 47,000 in fees and took 14 months.
What Does It Cost and How Long Does It Take?
The assentimento prévio request itself is filed with the federal government and does not carry a purchase-style government fee, but the surrounding costs are real: a georeferenced survey, ITBI (property transfer tax) of roughly 2% to 3% of the declared value depending on the municipality, registry and deed fees around 1% to 1.5%, and legal fees that in our practice run from R$ 8,000 for a simple urban lot to R$ 30,000 for a large rural acquisition with INCRA involvement.
Two simulations, using realistic 2026 figures:
| Cost item | Urban lot, R$ 300,000, border strip | Rural farm, R$ 1,000,000, border strip |
|---|---|---|
| ITBI (transfer tax) | R$ 6,000 to R$ 9,000 | R$ 20,000 to R$ 30,000 |
| Deed and registry fees | R$ 4,000 to R$ 5,000 | R$ 12,000 to R$ 15,000 |
| Georeferenced survey | Usually not required | R$ 5,000 to R$ 15,000 |
| Legal fees (assent + due diligence) | R$ 8,000 to R$ 12,000 | R$ 15,000 to R$ 30,000 |
| Sworn translations and apostille | R$ 1,000 to R$ 2,000 | R$ 1,000 to R$ 3,000 |
| Realistic total extra cost | Around R$ 19,000 to R$ 28,000 | Around R$ 53,000 to R$ 93,000 |
On timing, be conservative. Assembling a complete file (survey, certificates, translations, corporate chart) usually takes 30 to 60 days. The federal analysis of the assent, in our experience, lands between 3 and 8 months, and INCRA authorisation for rural land can add 2 to 6 months more, running partly in parallel. Plan for 6 to 12 months from first contract to registered deed.
Tip: Never sign a purchase contract with a standard 90-day closing in the border strip. Use a contrato com condição suspensiva (contract with a suspensive condition) that makes the sale conditional on obtaining the federal assent, with your deposit held in escrow and refundable if the authorisation is denied. That single clause is the difference between a delay and a loss. For the tax side of closing, see our breakdown of ITBI, cartório and registry fees in 2026.
When Does the Border Restriction Not Apply?
The restriction is narrower than the internet suggests. It targets land acquisition and certain strategic activities. It does not convert every square metre within 150 km of Paraguay into forbidden territory, and several very common situations fall outside it entirely or are treated with far lighter scrutiny.
Urban property inside a consolidated city perimeter
An apartment in Foz do Iguaçu or a house in a registered urban subdivision in Dourados is, in practice, treated very differently from raw land. The rural-module limits of Law 5.709/1971 simply do not apply to urban property. Border-strip screening can still be triggered depending on the municipality’s rules and the nature of the act, so the correct step is to confirm with the local registry before signing rather than to assume either extreme. Our general guide on whether foreigners can buy property in Brazil explains how different the urban rulebook is.
Leasing instead of buying
Renting or leasing does not transfer ownership, so the acquisition rules do not bite in the same way. For agricultural projects, an arrendamento rural (rural lease) of 5 to 10 years is a legitimate way to start operating while the ownership structure is studied. Long rural leases involving foreign operators can still attract regulatory attention, so the contract wording matters. If you are structuring any Brazilian lease, our notes on rental contract clauses foreigners must check apply to the commercial logic as well.
Naturalised Brazilians and inheritance
A naturalised Brazilian citizen is a Brazilian for these purposes. There is no border-strip restriction on buying land as a Brazilian national. Succession is also treated separately: a foreigner who inherits border-strip land by law or by will is not acquiring it by contract, and the inventário (probate proceeding) follows its own path, though registration of the transfer still requires the file to be properly documented.
Important: Marriage to a Brazilian does not exempt you. If you are married under comunhão parcial or comunhão universal de bens (partial or universal community of property) and the land is bought during the marriage, the foreign spouse becomes a co-owner by operation of law, which is exactly the acquisition the rule captures. Registries do check the marital regime.
What Is the Government’s Strongest Argument, and Does It Hold?
Here is the State’s case at full strength, not a strawman. The Constitution itself declares the 150 km strip fundamental to territorial defence. Brazil’s land borders stretch roughly 16,000 km through sparsely policed forest and farmland, and those corridors carry trafficking routes, illegal mining, land grabbing and disputes over water and indigenous territory.
From that perspective, concentrated foreign ownership along the frontier is not an abstract risk. If foreign-controlled entities assemble large contiguous holdings adjacent to another country, the State loses practical access, intelligence and enforcement capacity precisely where it is weakest. Allowing acquisition through opaque corporate chains would make even identifying the owner impossible. Hence the prior-authorisation model, the ownership-chain disclosure, and the Attorney General’s 2010 reading that closed the foreign-controlled-company loophole. That is a coherent and serious argument.
The answer is not that the argument is wrong. It is that the argument supports screening, not prohibition, and the legal text says exactly that. Law 6.634/1979 does not ban foreign ownership in the strip; it conditions it on assent. Applications that arrive with a clean georeferenced survey, a transparent ownership chain, a declared productive use and no environmental or indigenous overlap are routinely approved. The denials we see cluster around three things: incomplete files, undisclosed beneficial owners, and land with pre-existing conflicts.
Which means the practical conclusion is the opposite of fatalism. The foreigner who loses the right is almost never the one who was refused. It is the one who never asked.
What Changed in 2026 for Border-Zone Purchases?
No new statute replaced Law 6.634/1979 or Law 5.709/1971. The practical change in 2026 is procedural and digital: assent requests and INCRA filings are increasingly handled through federal online systems on gov.br, which speeds up complete files and rejects incomplete ones faster than the old paper flow did.
Three trends matter if you are buying this year:
- Georeferencing is now effectively mandatory in practice. Registries across the border states are refusing rural transfers without a certified survey, which has exposed many old deeds whose real coordinates sit inside the strip.
- Beneficial ownership scrutiny increased. Receita Federal’s beneficial-owner reporting rules mean the ultimate foreign controller of a Brazilian company is visible to the authorities, so “layering” structures no longer hide anything and simply look evasive.
- Congress continues to debate liberalising foreign rural land ownership. Bills proposing clearer, more permissive rules for foreign investment in farmland have circulated for years without final approval. Until one passes, the 1971 and 1979 regimes govern. Do not buy on the assumption that a pending bill will legalise your deal.
One more 2026 reality worth flagging for coastal border regions: land on the shoreline can be terreno de marinha (federal marine land), where you acquire the useful domain and pay an annual foro to the Union. It applies to Brazilians too, but foreign buyers are consistently blindsided by it.
Step-by-Step: How to Buy Border-Strip Land Legally
The sequence matters more than the paperwork. Done in the right order, a border-strip purchase is a 6 to 12 month project with a predictable outcome. Done in the wrong order, it becomes a nullity file. Here is the order that works.
- Step 1. Get your CPF (Brazilian taxpayer number). You cannot register property without it. It can be requested at a Brazilian consulate abroad or online.
- Step 2. Pull the updated matrícula and the georeferenced survey, and confirm in writing whether the perimeter falls inside the 150 km strip.
- Step 3. Run full due diligence: ownership chain, liens, environmental embargoes, labour and tax debts of the seller, indigenous or conservation overlap, and the municipality’s foreign-ownership quota under Law 5.709/1971 (foreigners cannot hold more than a set share of a municipality’s area).
- Step 4. Sign a preliminary contract with a suspensive condition tied to the federal authorisations, with funds in escrow.
- Step 5. File the assentimento prévio request with the Secretariat of the National Defence Council, and in parallel the INCRA request if the land is rural.
- Step 6. Transfer the purchase funds through a Brazilian bank with proper foreign-exchange registration at the Banco Central do Brasil, so you can legally repatriate capital and profits later.
- Step 7. Sign the escritura pública (public deed) at the cartório once authorisations are issued, pay ITBI, and register the deed.
- Step 8. Register with INCRA and CAR (rural environmental registry), and set up ITR (rural land tax) filings.
Tip: Issue two separate powers of attorney if you are abroad: one limited to the administrative filings, one for the deed signature. A single broad procuração covering everything is convenient for the seller’s lawyer and risky for you.
Border Strip at a Glance
| Question | Short answer |
|---|---|
| Width of the strip | 150 km from the land border (Constitution, Art. 20, §2) |
| Municipalities affected | 588 across 11 states (Ministry of Integration and Regional Development) |
| Main law | Law 6.634/1979, plus Law 5.709/1971 for rural land |
| Who authorises | Secretariat of the National Defence Council (GSI), plus INCRA for rural land |
| Foreign-controlled Brazilian company | Treated as a foreign buyer |
| Urban apartment in the strip | Rural module limits do not apply; confirm local registry practice |
| Rural lease (arrendamento) | Not an acquisition; lighter regime |
| Penalty for skipping the assent | Act is void; registration refused or later annulled |
| Realistic timeline | 6-12 months from contract to registered deed |
| Typical extra cost | R$ 19,000 (urban lot) to R$ 93,000 (large farm) |
Frequently Asked Questions
Can I buy an apartment in Foz do Iguaçu as a foreigner?
In practice, yes, and far more easily than rural land. Foz do Iguaçu sits in the border strip, but a residential unit inside a consolidated urban perimeter is not subject to the rural module limits of Law 5.709/1971. You will need a CPF, a passport, ITBI payment and registration at the local cartório. Because border-strip screening can still apply depending on the act and the municipality, ask the registry in writing for its requirements before you sign the escritura. The answer is usually straightforward, and getting it in writing costs nothing.
Does a Brazilian company owned by me solve the problem?
No. Since the Attorney General’s Office issued its binding 2010 opinion, a Brazilian company controlled by foreign capital is treated like a foreign buyer for rural and border-strip land. Receita Federal’s beneficial-ownership reporting makes your control visible anyway. A Brazilian company is still often the right vehicle for tax and operational reasons, and you will need a registered fiscal address in Brazil to open the CNPJ, but it is not a way around the authorisation. Structures designed to hide foreign control can void the sale.
What happens if I already bought border land without the assent?
You are not automatically out of options, but you need to act before someone else raises it. The act is void under Law 6.634/1979, which means the Union, the public prosecutor or a future buyer can challenge it. Regularisation involves documenting the purchase, commissioning a proper survey and filing a late request explaining the situation and the land’s use. Outcomes depend heavily on the file quality and whether the land has environmental or indigenous conflicts. Expect 12 to 18 months and fees in the R$ 30,000 to R$ 50,000 range for a rural case.
Do I need Brazilian residency to buy border-strip land?
For urban property, no: a CPF and a passport are enough, and you can buy as a non-resident. For rural land, residency changes everything. Law 5.709/1971 is built around foreign individuals who reside in Brazil, and non-resident foreigners face substantially tighter limits on rural acquisition. Inside the border strip, holding a CRNM (National Immigration Registration Card) and showing a genuine link to Brazil materially strengthens an assent request, because the authority is assessing who will actually occupy and use the land.
How do I know for certain whether a property is inside the 150 km strip?
Only the georeferenced coordinates settle it. Ask the seller for the certified survey and cross-check the municipality against the official border-strip list maintained by the federal government. Distance to the nearest border crossing is irrelevant, because the strip is measured from the border line itself, which often runs through rivers and forest. If the seller cannot produce a survey, treat that as the answer: commission your own before paying any deposit, not after. A survey costs R$ 5,000 to R$ 15,000 and prevents a six-figure mistake.
Can I use a Brazilian friend’s name and a side agreement?
No. That is simulação (simulation) under the Brazilian Civil Code and the contract is void. You would have no registered title, no enforceable claim to the property, and a written side agreement that functions as evidence against you. We have seen this end with the nominee selling the land and the foreign buyer with nothing recoverable. If the honest structure does not work, the answer is a lease, a different property, or a properly filed authorisation, never a nominee. Read more on the 2026 limits for foreigners buying rural land.
Buying Land Near Brazilian Borders: Get the Authorisation Right Before You Sign
Border-strip rules are not designed to keep you out. They are designed to make the government look at the file first, and almost every foreigner who loses the land lost it by skipping that step rather than by failing it. Our bilingual team at Ribeiro Cavalcante Advocacia, registered with the OAB (Brazilian Bar Association), handles border-strip due diligence, INCRA filings and prior-assent requests for buyers in all 11 frontier states.
Your concrete next step: send us the property’s matrícula number and the municipality name. We will tell you within a few business days whether the land is inside the 150 km strip and exactly which authorisations your purchase will need.
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