Dollar in Brazil › Sources

Sources and methodology: dollar in Brazil

PTAX is a Banco Central do Brasil reference calculated from four daily surveys of foreign-exchange dealers. Buying and selling are the sides of that wholesale reference, not executable offers. Final bank or exchange-office prices may include margins, taxes and fees; these are not estimated here.

Last PTAX close: 13/11/2026 13:03 (São Paulo time, UTC−3).

Where the dollar data for Brazil comes from

Date	Source	Frequency	From	Latest	Records
PTAX BCB (reference, ask)	Banco Central do Brasil: PTAX and methodology, official buying and selling closes; official closing table	daily (working days)	04/01/2016	13/11/2026	2.727
PTAX BCB (reference, purchase)	Banco Central do Brasil: PTAX and methodology, official buying and selling closes; official closing table	daily (working days)	04/01/2016	13/11/2026	2.727

Last PTAX close: 13/11/2026 13:03 (São Paulo time, UTC−3).

How we process it

The PTAX is wholesale reference, not retail price. We keep the official date and time of each closure (São Paulo). The OData query download; if you fail, try the closing table of the BCB. This contingency brings only the published closure, does not reconstruct a historical. We do not complete non-existing days or seasons.

The pages are regenerated several times a day. The hours we show are at the time of Argentina unless another area is indicated. We do not change official values: we only calculate variations, averages and conversions from them.

In My dollars we also use global series in dollars:

S&P 500 con dividendos: S&P Dow Jones Indices vía FRED (SP500)
Gold: COMEX via Yahoo Finance (GC = F)
Bitcoin: Yahoo Finance (BTC)-USD)
Inflation of US (CPI-U): BLS (CPI-U, CPIAUCNS) via FRED

Last PTAX close: 13/11/2026 13:03 (São Paulo time, UTC−3).

Errors and corrections

Yeah. VES a data that does not match the official source, writing from Contact with date and value; we review it against the original publication.