XML 208 R186.htm IDEA: XBRL DOCUMENT
v3.25.4

Tax assets and liabilities (Details 6) R$ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 BRL (R$)
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | R$ 45,562,986
Deferred tax assets tax loss | 5,291,844
Deferred tax assets total | 50,854,830
Deferred tax liabilities temporary differences | 4,589,099
Deferred tax liabilities total | 4,589,099
Expected Realization Of Deferred Tax Assets 2026 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 9,572,148
Deferred tax assets tax loss | 36,844
Deferred tax assets total | 9,608,992
Deferred tax liabilities temporary differences | 1,092,810
Deferred tax liabilities total | 1,092,810
Expected Realization Of Deferred Tax Assets 2027 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 6,937,859
Deferred tax assets tax loss | 1,090,696
Deferred tax assets total | 8,028,555
Deferred tax liabilities temporary differences | 1,095,782
Deferred tax liabilities total | 1,095,782
Expected Realization Of Deferred Tax Assets 2028 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 6,129,936
Deferred tax assets tax loss | 2,304,325
Deferred tax assets total | 8,434,261
Deferred tax liabilities temporary differences | 870,727
Deferred tax liabilities total | 870,727
Expected Realization Of Deferred Tax Assets 2029 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 5,162,834
Deferred tax assets tax loss | 1,854,527
Deferred tax assets total | 7,017,361
Deferred tax liabilities temporary differences | 850,912
Deferred tax liabilities total | 850,912
Expected Realization Of Deferred Tax Assets 2030 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 4,908,139
Deferred tax assets tax loss | 3,730
Deferred tax assets total | 4,911,869
Deferred tax liabilities temporary differences | 151,612
Deferred tax liabilities total | 151,612
Expected Realization Of Deferred Tax Assets 2031 To 2035 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax assets temporary differences | 12,852,070
Deferred tax assets tax loss | 1,722
Deferred tax assets total | 12,853,792
Deferred tax liabilities temporary differences | 222,694
Deferred tax liabilities total | 222,694
Expected Realization Of Deferred Tax Assets After 2036 [Member] |
IfrsStatementLineItems [Line Items] |
Deferred tax liabilities temporary differences | 304,562
Deferred tax liabilities total | R$ 304,562

X
- References No definition available. + Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsTaxLoss
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsTemporaryDifferences
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsTotal
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxLiabilitiesTemporaryDifferences
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxLiabilitiesTotal
Namespace Prefix: | bsbr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | bsbr_IfrsStatementLineItems
Namespace Prefix: | bsbr_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2027Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2029Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2030Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssets2031To2035Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bsbr_ExpectedRealizationOfDeferredTaxAssetsAxis=bsbr_ExpectedRealizationOfDeferredTaxAssetsAfter2036Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |