Complementary Law 179 of 24 February 2021 gives the Banco Central do Brasil a nine-member board serving four-year terms that begin on named dates within the presidential cycle, so most terms do not coincide with a president's. Members may be dismissed only on four listed grounds, and dismissal for underperformance requires a proposal from the National Monetary Council and approval by an absolute majority of the Federal Senate. The same law gives target-setting to that Council, not to the bank.
Central bank independence is often described as a habit: a convention that governments respect because breaking it would be costly. Brazil took a different route. Complementary Law 179 of 24 February 2021 sets out the Banco Central do Brasil's objectives, its autonomy, and the rules for appointing and dismissing its board, and the substance of that independence turns out to be a set of dates.
Key Takeaways
- Complementary Law 179, enacted 24 February 2021, defines the bank's objectives, its autonomy, and its appointment and dismissal rules.
- The board has nine members, all confirmed by the Federal Senate, each serving four years with one possible reappointment.
- Terms are staggered against the presidential cycle, so most board terms do not coincide with a president's.
- Dismissal is limited to four listed grounds, and the performance ground needs an absolute majority of the Senate.
- The bank does not set its own target. Article 2 gives that to the National Monetary Council and leaves the bank the instrument.
What is statutory independence made of?
Article 6 describes the institution rather than the person. The bank is an agency of a special nature, characterised by the absence of any tie to or hierarchical subordination under a ministry, by technical, operational, administrative and financial autonomy, by the appointment of its governing body to fixed terms, and by security from dismissal during those terms.
That list separates into three different things.
The first is organisational: nobody in the executive sits above the bank in a reporting line.
The second is about the individuals: they hold terms, and while a term runs they cannot simply be replaced.
The third is about resources, and it is the one that is easiest to assert and hardest to deliver, because a body that must ask for its budget each year is answerable through the budget whatever the statute says.
Everything that follows in this guide is an elaboration of the second point, because that is where the law does its most concrete work.
Why do the start dates matter more than the term length?
A four-year term sounds independent until you notice that a presidential term is also four years. If the two run together, every incoming government appoints its own board at once and the fixed term protects nobody.
Article 4 breaks the alignment on purpose. The governor and all eight directors serve four years, but their terms start on four separate dates spread across the President of the Republic's own four-year term.
| Seat | Seats | Term begins |
|---|---|---|
| Governor | 1 | 1 January of the third year of the presidential term |
| Director | 2 | 1 March of the first year |
| Director | 2 | 1 January of the second year |
| Director | 2 | 1 January of the third year |
| Director | 2 | 1 January of the fourth year |
Three consequences follow.
A president who takes office in January inherits a governor appointed under the previous administration, and does not get to name a replacement until the third year.
No more than two directors' seats change hands on any single date, so the board turns over gradually rather than in one sweep.
A term also runs on until the successor takes office, so a seat does not fall empty while a nomination waits in the Senate.
Reviewing Brazil in July 2025, the International Monetary Fund summarised the arrangement in one line: most board member terms do not coincide with the presidential term. That is the design, stated as a fact about the calendar.
On what grounds can a governor be removed?
Appointment runs through two branches. The President of the Republic nominates, the Federal Senate confirms, and only then is the appointment made.
Dismissal is narrower. Article 5 lists four grounds and no others: at the officeholder's own request; incapacitating illness that leaves them unable to serve; a conviction, final or issued by a judicial panel, for administrative improbity or for a crime carrying a prohibition on holding public office, even temporarily; and proven and recurring failure to perform as needed to achieve the bank's objectives.
The fourth ground is the interesting one, because it is the only one that involves a judgement about policy performance rather than a fact about the person. So the law makes it the hardest to use. The National Monetary Council must submit the proposal for dismissal to the President of the Republic, and it takes effect only with the prior approval of the Federal Senate by an absolute majority.
That is what a closed list buys. Under a discretionary arrangement, the question is whether the government wants to replace the governor. Under this one, the question is which listed ground applies and who else has to agree. Those are very different conversations, and only the second one leaves a public record.
Who decides what the bank has to hit?
Not the bank. Article 2 states that the targets for monetary policy are set by the National Monetary Council, and that the Banco Central do Brasil is solely responsible for conducting the monetary policy necessary to achieve them.
This is the division that gives the arrangement its shape. The goal belongs to a body on the political side of the line. The instrument belongs to the bank. An independent central bank in this model is not one that chooses what to aim at; it is one that cannot be told how to aim.
The machinery around it is public. The current target was set by the Council through Resolution 5,141 of 26 June 2024. Decree 12,079 of 2024 established a continuous inflation-targeting framework, under which the target refers to inflation measured over a rolling twelve months rather than to a calendar year. The target counts as breached when inflation stays outside its tolerance interval for six consecutive months, and a breach obliges the bank to publish an open letter and a note in its Monetary Policy Report explaining the deviation and what it is doing about it.
Note what that accountability mechanism is not. It is not a penalty and it is not a dismissal trigger. It is a requirement to explain in public. Independence in this design is paid for with disclosure rather than with immunity.
What does statute change, compared with convention?
A convention is withdrawn by deciding to withdraw it. There is no vote and no record, and the first evidence that it has gone is usually a personnel announcement.
A statute changes the cost of the same act. Removing a board member requires naming a ground on the list, and for the performance ground it requires a proposal from the Council and an absolute majority in the Senate. Changing the rules themselves requires passing another law. None of that makes the arrangement permanent, but it makes it visible and slow, and visibility is most of what markets and courts can act on.
It is also worth being precise about what statutory autonomy has not delivered here. In the same 2025 review, the International Monetary Fund set out both halves. On the credit side it recorded that the 2021 law defines price stability as the bank's primary objective, sets four-year terms with one possible renewal, establishes the cases in which removal is admissible, delegates decisions on certain monetary and macroprudential tools from the Council to the bank, and strengthens policy transparency through published inflation and financial stability reports.
On the other side it recorded that the law does not establish legal protection for the bank's staff, and does not grant it effective financial and administrative independence. A proposed constitutional amendment is directed at that remaining gap.
So the third strand of Article 6, the one about administrative and financial autonomy, is the part still being argued over. That is a useful reminder when you read a claim that a central bank has been made independent: independence is not one switch.
How to test a claim of independence
Four questions get you most of the way, and Brazil answers all four in writing.
How long is a term, and does it straddle the electoral cycle rather than match it?
What are the grounds for removal, are they a closed list, and does anyone outside the executive have to agree?
Who sets the target the bank is measured against, and who has to explain a miss?
And who controls the bank's staffing and its budget?
A framework that answers the first three well and the fourth poorly is still meaningfully independent. But it is independent in a specific, bounded way, and reading the statute is how you find the boundary.
Where to look next
The AUD to BRL page carries the live reference rate for the pair along with a short block on how the Brazilian real came to exist and what exchange arrangement it operates under now. For the related question of what happens when a statute names a goal but no number, and the central bank supplies the number itself, how the Bank of Japan turned a statutory phrase into a number works through that case.
Sources
- Banco Central do Brasil, Complementary Law No. 179 of 24 February 2021, official English translation - Articles 1 to 6: the objectives, the assignment of monetary policy targets to the National Monetary Council, the nine-member board, the staggered four-year terms in the table above, the four grounds for dismissal with the Senate majority requirement, and the bank's special nature and autonomy
- Presidência da República, Lei Complementar nº 179, de 24 de fevereiro de 2021 - the original Portuguese text, including the staggered mandate schedule and the extension of a term until the successor takes office
- International Monetary Fund, Brazil: 2025 Article IV Consultation, Country Report No. 25/194, July 2025 - the assessment of the 2021 law: that most board member terms do not coincide with the presidential term, the delegation of tool decisions to the bank, and the absence of legal protection for staff and of effective financial and administrative independence
- Banco Central do Brasil, Monetary Policy Report, September 2025, note on the breach of the inflation target - the Council as the body that sets the target, Resolution 5,141 of 26 June 2024, Decree 12,079 of 2024 and the continuous inflation-targeting framework, the six-consecutive-month breach test, and the open letter as the accountability mechanism
General information about how central bank independence is written into law. Not financial advice, and not a recommendation of any product or institution. Reviewed by the Tradergy editorial team, September 2026.
Common questions
What is central bank independence?
It is the separation of the decision about how to reach a monetary goal from the political decision about what the goal should be. In its strongest form the separation is written into law, so the officials who make the decision hold fixed terms and can be removed only on stated grounds.
How long is a Banco Central do Brasil term?
Four years, for the governor and for each director, with one possible reappointment by decision of the President of the Republic. A term also extends until the successor takes office, so a seat does not fall vacant while a nomination is pending.
Why are the terms staggered?
So that the board does not turn over with the government. The governor's term starts on 1 January of the third year of a presidential term, and the eight directors start in pairs on four separate dates across the cycle. A newly elected president therefore inherits a board rather than appointing one.
Can Brazil's president dismiss the central bank governor?
Only on the grounds the law lists: at the officeholder's request, incapacitating illness, a qualifying conviction, or proven and recurring failure to perform. The last of those requires the National Monetary Council to propose the dismissal and the Federal Senate to approve it by an absolute majority.
Does the Banco Central do Brasil set its own target?
No. Article 2 of Complementary Law 179 gives target-setting to the National Monetary Council and makes the bank solely responsible for conducting the monetary policy needed to meet it. The elected side keeps the goal; the bank keeps the instrument.