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Provisional Measure 1303/2025 reportedly imposes a flat 17.5% tax on all individual crypto profits, replacing the prior exemption/progressive-rate structure; this materiality-5 binding claim rests solely on T4 secondary reporting and has been downgraded to Probable per Challenger flag f-001 pending primary-source verification. Receita Federal is separately transitioning reporting from IN 1.888 to a CARF-aligned DeCripto system from July 2025, and a proposed IOF extension to stablecoin/crypto transactions remains paused.
Separately, the reporting infrastructure around crypto tax compliance is itself being replaced: Receita Federal is transitioning from the existing IN 1.888 crypto-reporting rule to a new CARF-aligned system, DeCripto, with the changeover starting in July 2025. And a third, unresolved thread sits alongside these two: the Finance Ministry's proposal to extend the IOF financial-transaction tax to stablecoin and crypto transactions has been paused following industry objections, with no resumption date set.
Outlook
Firming up the flat-rate capital-gains claim against primary Receita Federal or Diário Oficial text is the single highest-priority backfill item for this module -- it is a materiality-5, binding claim currently anchored on secondary reporting alone. The IOF stablecoin-tax question is the second item to watch, given that a pause driven by industry pushback rather than a formal policy reversal can be reopened without much advance warning.
Tax Treatment
Following the FX reclassification of foreign-currency-referenced stablecoins under BCB Resolution 521, USDT, USDC and similar instruments now trigger the IOF-Exchange tax at a flat rate of 3.5% on the converted amount. This is the clearest sourced tax development for Brazil this cycle, and it flows directly from the same Resolution 521 reclassification driving the token-classification and stablecoin-regime findings elsewhere in this record. That said, the 3.5% figure rests on secondary reporting rather than a primary Receita Federal or BCB tax instrument located this cycle, and should be treated as provisional pending confirmation against a primary source.
Separately, the general (non-stablecoin) crypto capital-gains tax schedule applicable to individuals and entities was not freshly re-verified against a primary Receita Federal source this cycle. This is a carried-forward gap rather than a new finding, and should not be read as evidence that the underlying capital-gains regime has changed.
Outlook
Two items warrant primary-source confirmation in the next cycle: the 3.5% IOF-Exchange rate itself, and the general capital-gains schedule for non-stablecoin crypto disposals. Until confirmed, the tax picture for stablecoin conversions specifically should be treated with more caution than the strength of the underlying regulatory change (the FX reclassification) might otherwise suggest.
Sources and findings (3)
- T4 · CoinDeskProvisional Measure 1303/2025 (Brazil) — a flat 17.5% tax on all crypto profits for individuals, replacing the prior R$35,000/month exemption and progressive rates up to 22.5%, applying regardless of where assets are heldretrieved M5bindingin forcenew
- T4 · CoinDeskReceita Federal do Brasil — crypto reporting rule IN 1.888 with a new CARF-aligned system (DeCripto), starting July 2025retrieved M3bindingin forcenew
- T4 · CoinDeskBrazil's Finance Ministry — a planned public consultation on extending the IOF financial-transaction tax (proposed rates up to 3.5%) to stablecoin/crypto transactions, following industry objections re: constitutionality and Law 14,478/2022's non-fiat classification of virtual assetsretrieved M4non-bindingnew