diff --git a/package.json b/package.json
index 30c5449..5ae7f17 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@useblu/utils",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "private": false,
   "license": "MIT",
   "main": "lib/index.js",
diff --git a/src/masks/maskBankAccount.ts b/src/masks/maskBankAccount.ts
index c04df47..f416583 100644
--- a/src/masks/maskBankAccount.ts
+++ b/src/masks/maskBankAccount.ts
@@ -1,10 +1,6 @@
 import VMasker from 'vanilla-masker';
-import {
-  BANK_ACCOUNT_MASKS,
-  DEFAULT_BANK_ACCOUNT_MASK,
-  ALPHANUMERIC_BANK_CODES,
-} from './masks';
-import { stripAlphanumeric, stripNumeric } from './strip';
+import { BANK_ACCOUNT_MASKS, DEFAULT_BANK_ACCOUNT_MASK } from './masks';
+import { stripNumeric } from './strip';
 import type { BankCompensationCode } from './types';
 
 export default function maskBankAccount(
@@ -15,9 +11,6 @@ export default function maskBankAccount(
 
   const code = compensationCode as BankCompensationCode;
   const pattern = BANK_ACCOUNT_MASKS[code] ?? DEFAULT_BANK_ACCOUNT_MASK;
-  const stripped = ALPHANUMERIC_BANK_CODES.includes(code)
-    ? stripAlphanumeric(String(value))
-    : stripNumeric(String(value));
 
-  return VMasker.toPattern(stripped, pattern);
+  return VMasker.toPattern(stripNumeric(String(value)), pattern);
 }
diff --git a/src/masks/maskBankBranch.ts b/src/masks/maskBankBranch.ts
index beb23fc..1d4d95f 100644
--- a/src/masks/maskBankBranch.ts
+++ b/src/masks/maskBankBranch.ts
@@ -1,17 +1,18 @@
 import VMasker from 'vanilla-masker';
-import { BANK_BRANCH_MASKS, DEFAULT_BANK_BRANCH_MASK } from './masks';
+import { DEFAULT_BANK_BRANCH_MASK } from './masks';
 import { stripNumeric } from './strip';
-import type { BankCompensationCode } from './types';
 
 export default function maskBankBranch(
   value: string | null | undefined,
+  // Mantido por compatibilidade de API e simetria com maskBankAccount: a
+  // agência usa sempre 4 dígitos, independente do banco (o DV, quando há, é
+  // calculado pelo backend).
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   compensationCode?: string,
 ): string {
   if (value === null || value === undefined || value === '') return '';
 
   const stripped = stripNumeric(String(value));
-  const pattern = BANK_BRANCH_MASKS[compensationCode as BankCompensationCode]
-    ?? DEFAULT_BANK_BRANCH_MASK;
 
-  return VMasker.toPattern(stripped, pattern);
+  return VMasker.toPattern(stripped, DEFAULT_BANK_BRANCH_MASK);
 }
diff --git a/src/masks/maskComplete.ts b/src/masks/maskComplete.ts
index 7024b6e..b67941d 100644
--- a/src/masks/maskComplete.ts
+++ b/src/masks/maskComplete.ts
@@ -2,9 +2,7 @@ import {
   MASKS,
   DEFAULT_BANK_BRANCH_MASK,
   DEFAULT_BANK_ACCOUNT_MASK,
-  BANK_BRANCH_MASKS,
   BANK_ACCOUNT_MASKS,
-  ALPHANUMERIC_BANK_CODES,
 } from './masks';
 import { stripAlphanumeric, stripNumeric, PATTERN_PLACEHOLDER_REGEX } from './strip';
 import type { MaskType, BankCompensationCode } from './types';
@@ -31,13 +29,7 @@ const patternFor = (
     case 'barCodeUtilities': return MASKS.BAR_CODE_UTILITIES;
     case 'darf': return MASKS.DARF;
     case 'number': return MASKS.NUMBER;
-    case 'bank_branch': {
-      if (compensationCode) {
-        const mapped = BANK_BRANCH_MASKS[compensationCode as BankCompensationCode];
-        if (mapped) return mapped;
-      }
-      return DEFAULT_BANK_BRANCH_MASK;
-    }
+    case 'bank_branch': return DEFAULT_BANK_BRANCH_MASK;
     case 'bank_account': {
       if (compensationCode) {
         const mapped = BANK_ACCOUNT_MASKS[compensationCode as BankCompensationCode];
@@ -76,11 +68,7 @@ export default function maskComplete(
 
   const expected = placeholdersInPattern(pattern);
 
-  const isAlphanumeric = ALPHANUMERIC_MASKS.includes(type)
-    || (
-      (type === 'bank_account' || type === 'bank_branch')
-      && ALPHANUMERIC_BANK_CODES.includes(compensationCode as BankCompensationCode)
-    );
+  const isAlphanumeric = ALPHANUMERIC_MASKS.includes(type);
 
   const stripped = isAlphanumeric
     ? stripAlphanumeric(value)
diff --git a/src/masks/maskValue.ts b/src/masks/maskValue.ts
index cc4e357..d73b96f 100644
--- a/src/masks/maskValue.ts
+++ b/src/masks/maskValue.ts
@@ -5,9 +5,7 @@ import {
   PERCENTAGE_MASK_DEFAULTS,
   DEFAULT_BANK_BRANCH_MASK,
   DEFAULT_BANK_ACCOUNT_MASK,
-  BANK_BRANCH_MASKS,
   BANK_ACCOUNT_MASKS,
-  ALPHANUMERIC_BANK_CODES,
 } from './masks';
 import { stripAlphanumeric, stripNumeric } from './strip';
 import type { MaskType, CurrencyMaskOptions, BankCompensationCode } from './types';
@@ -23,25 +21,11 @@ export interface MaskValueOptions extends CurrencyMaskOptions {
 
 const ALPHANUMERIC_MASKS: ReadonlyArray<MaskType> = ['cnpj', 'cpf_cnpj'];
 
-const stripFor = (value: string, type: MaskType, compensationCode?: string): string => {
+const stripFor = (value: string, type: MaskType): string => {
   if (ALPHANUMERIC_MASKS.includes(type)) return stripAlphanumeric(value);
-  if (
-    (type === 'bank_account' || type === 'bank_branch')
-    && ALPHANUMERIC_BANK_CODES.includes(compensationCode as BankCompensationCode)
-  ) {
-    return stripAlphanumeric(value);
-  }
   return stripNumeric(value);
 };
 
-const bankBranchPattern = (code?: string): string => {
-  if (code) {
-    const mapped = BANK_BRANCH_MASKS[code as BankCompensationCode];
-    if (mapped) return mapped;
-  }
-  return DEFAULT_BANK_BRANCH_MASK;
-};
-
 const bankAccountPattern = (code?: string): string => {
   if (code) {
     const mapped = BANK_ACCOUNT_MASKS[code as BankCompensationCode];
@@ -71,7 +55,7 @@ const patternFor = (
     case 'barCodeUtilities': return MASKS.BAR_CODE_UTILITIES;
     case 'darf': return MASKS.DARF;
     case 'number': return MASKS.NUMBER;
-    case 'bank_branch': return bankBranchPattern(compensationCode);
+    case 'bank_branch': return DEFAULT_BANK_BRANCH_MASK;
     case 'bank_account': return bankAccountPattern(compensationCode);
     default: return '';
   }
@@ -94,7 +78,7 @@ export default function maskValue(
     return VMasker.toMoney(stringValue, { ...PERCENTAGE_MASK_DEFAULTS, ...(options || {}) });
   }
 
-  const stripped = stripFor(stringValue, type, options?.compensationCode);
+  const stripped = stripFor(stringValue, type);
   const pattern = patternFor(type, stripped, options?.compensationCode);
 
   if (!pattern) return stringValue;
diff --git a/src/masks/masks.ts b/src/masks/masks.ts
index 62e0a93..c80b228 100644
--- a/src/masks/masks.ts
+++ b/src/masks/masks.ts
@@ -30,20 +30,18 @@ export const PERCENTAGE_MASK_DEFAULTS: CurrencyMaskOptions = {
   zeroCents: false,
 };
 
-export const BANK_BRANCH_MASKS: Partial<Record<BankCompensationCode, string>> = {
-  341: '99999-9',
-};
-
+// Toda agência bancária é informada com 4 dígitos no frontend; quando há DV
+// na agência (BB, Banrisul, Bradesco, Arbi) ele é calculado/validado pelo
+// backend a partir desses 4 dígitos. Por isso a agência não tem máscara por
+// banco — todos usam este default.
 export const DEFAULT_BANK_BRANCH_MASK = '9999';
 
-export const ALPHANUMERIC_BANK_CODES: ReadonlyArray<BankCompensationCode> = ['1'];
-
 export const BANK_ACCOUNT_MASKS: Partial<Record<BankCompensationCode, string>> = {
-  1: '99999999-S',
+  1: '99999999-9',
   33: '99999999-9',
   41: '999999999-9',
-  104: '999999999999-9',
-  213: '9999999-9',
+  104: '999999999-9',
+  213: '99999-9',
   237: '9999999-9',
   341: '99999-9',
   399: '999999-9',
diff --git a/tests/masks/maskBankAccount.spec.ts b/tests/masks/maskBankAccount.spec.ts
index 476b737..364585c 100644
--- a/tests/masks/maskBankAccount.spec.ts
+++ b/tests/masks/maskBankAccount.spec.ts
@@ -7,6 +7,10 @@ describe('maskBankAccount', () => {
     test('formata conta com dígito', () => {
       expect(maskBankAccount('123456789', '1')).toBe('12345678-9');
     });
+
+    test('DV é numérico: caractere não numérico é removido', () => {
+      expect(maskBankAccount('12345678X', '1')).toBe('12345678');
+    });
   });
 
   describe('Santander (33)', () => {
@@ -28,8 +32,8 @@ describe('maskBankAccount', () => {
   });
 
   describe('CEF (104)', () => {
-    test('formata conta longa com dígito', () => {
-      expect(maskBankAccount('1234567890123', '104')).toBe('123456789012-3');
+    test('formata conta com dígito (9 dígitos, sem operação)', () => {
+      expect(maskBankAccount('1234567890123', '104')).toBe('123456789-0');
     });
   });
 
@@ -51,9 +55,9 @@ describe('maskBankAccount', () => {
     });
   });
 
-  describe('Banco Original (213)', () => {
+  describe('Arbi (213)', () => {
     test('formata conta com dígito', () => {
-      expect(maskBankAccount('12345678', '213')).toBe('1234567-8');
+      expect(maskBankAccount('12345678', '213')).toBe('12345-6');
     });
   });
 
diff --git a/tests/masks/maskBankBranch.spec.ts b/tests/masks/maskBankBranch.spec.ts
index 6dd260f..3d99eff 100644
--- a/tests/masks/maskBankBranch.spec.ts
+++ b/tests/masks/maskBankBranch.spec.ts
@@ -19,11 +19,11 @@ describe('maskBankBranch', () => {
     expect(maskBankBranch('1234', '33')).toBe('1234');
   });
 
-  test('agência Itaú (341) com dígito verificador', () => {
-    expect(maskBankBranch('123456', '341')).toBe('12345-6');
+  test('agência Itaú (341) tem 4 dígitos sem DV', () => {
+    expect(maskBankBranch('123456', '341')).toBe('1234');
   });
 
-  test('agência Itaú (341) parcial', () => {
+  test('agência Itaú (341) com 4 dígitos', () => {
     expect(maskBankBranch('1234', '341')).toBe('1234');
   });
 
diff --git a/tests/masks/maskComplete.spec.ts b/tests/masks/maskComplete.spec.ts
index fe2dafe..b30b453 100644
--- a/tests/masks/maskComplete.spec.ts
+++ b/tests/masks/maskComplete.spec.ts
@@ -59,12 +59,12 @@ describe('maskComplete', () => {
     expect(maskComplete('12', 'bank_branch')).toBe(false);
   });
 
-  test('bank_branch completo com compensationCode Itaú (341)', () => {
-    expect(maskComplete('123456', 'bank_branch', '341')).toBe(true);
+  test('bank_branch completo com compensationCode Itaú (341) são 4 dígitos', () => {
+    expect(maskComplete('1234', 'bank_branch', '341')).toBe(true);
   });
 
   test('bank_branch incompleto com compensationCode Itaú (341)', () => {
-    expect(maskComplete('1234', 'bank_branch', '341')).toBe(false);
+    expect(maskComplete('12', 'bank_branch', '341')).toBe(false);
   });
 
   test('bank_account completo (noop 12+1 dígitos)', () => {
@@ -83,8 +83,8 @@ describe('maskComplete', () => {
     expect(maskComplete('123456789', 'bank_account', { compensationCode: '1' })).toBe(true);
   });
 
-  test('bank_account completo com DV alfanumérico BB (1)', () => {
-    expect(maskComplete('12345678X', 'bank_account', { compensationCode: '1' })).toBe(true);
+  test('bank_account BB (1) com DV não numérico não conta como completo', () => {
+    expect(maskComplete('12345678X', 'bank_account', { compensationCode: '1' })).toBe(false);
   });
 
   test('bank_account incompleto com compensationCode BB (1)', () => {
diff --git a/tests/masks/maskHintBankAccount.spec.ts b/tests/masks/maskHintBankAccount.spec.ts
index 2f657d2..375af11 100644
--- a/tests/masks/maskHintBankAccount.spec.ts
+++ b/tests/masks/maskHintBankAccount.spec.ts
@@ -16,7 +16,7 @@ describe('maskHintBankAccount', () => {
   });
 
   test('CEF (104)', () => {
-    expect(maskHintBankAccount('104')).toBe('000000000000-0');
+    expect(maskHintBankAccount('104')).toBe('000000000-0');
   });
 
   test('código desconhecido retorna placeholder default (noop)', () => {
diff --git a/tests/masks/maskValue.spec.ts b/tests/masks/maskValue.spec.ts
index 0efc7e5..5808b84 100644
--- a/tests/masks/maskValue.spec.ts
+++ b/tests/masks/maskValue.spec.ts
@@ -91,8 +91,8 @@ describe('maskValue', () => {
     test('strip de caracteres não numéricos', () => {
       expect(maskValue('12-34', 'bank_branch')).toBe('1234');
     });
-    test('com compensationCode Itaú (341) usa padrão 99999-9', () => {
-      expect(maskValue('123456', 'bank_branch', { compensationCode: '341' })).toBe('12345-6');
+    test('com compensationCode Itaú (341) usa 4 dígitos (sem DV)', () => {
+      expect(maskValue('123456', 'bank_branch', { compensationCode: '341' })).toBe('1234');
     });
     test('com compensationCode desconhecido usa padrão noop', () => {
       expect(maskValue('1234', 'bank_branch', { compensationCode: '999' })).toBe('1234');
@@ -109,11 +109,11 @@ describe('maskValue', () => {
     test('strip de separadores antes de aplicar', () => {
       expect(maskValue('123456789012-3', 'bank_account')).toBe('123456789012-3');
     });
-    test('com compensationCode BB (1) usa padrão 99999999-S', () => {
+    test('com compensationCode BB (1) usa padrão 99999999-9', () => {
       expect(maskValue('123456789', 'bank_account', { compensationCode: '1' })).toBe('12345678-9');
     });
-    test('com compensationCode BB (1) preserva DV alfanumérico', () => {
-      expect(maskValue('12345678X', 'bank_account', { compensationCode: '1' })).toBe('12345678-X');
+    test('com compensationCode BB (1) usa DV numérico (X é removido)', () => {
+      expect(maskValue('12345678X', 'bank_account', { compensationCode: '1' })).toBe('12345678');
     });
     test('com compensationCode Bradesco (237) usa padrão 9999999-9', () => {
       expect(maskValue('12345678', 'bank_account', { compensationCode: '237' })).toBe('1234567-8');