diff --git a/README.md b/README.md
index ab5609ae0..cde507282 100644
--- a/README.md
+++ b/README.md
@@ -143,7 +143,7 @@ Validator                               | Description
 **isMultibyte(str)**                    | check if the string contains one or more multibyte chars.
 **isNumeric(str [, options])**                      | check if the string contains only numbers.<br/><br/>`options` is an object which defaults to `{no_symbols: false}` it also has locale as an option. If `no_symbols` is true, the validator will reject numeric strings that feature a symbol (e.g. `+`, `-`, or `.`).<br/><br/>`locale` determine the decimal separator and is one of `['ar', 'ar-AE', 'ar-BH', 'ar-DZ', 'ar-EG', 'ar-IQ', 'ar-JO', 'ar-KW', 'ar-LB', 'ar-LY', 'ar-MA', 'ar-QA', 'ar-QM', 'ar-SA', 'ar-SD', 'ar-SY', 'ar-TN', 'ar-YE', 'bg-BG', 'cs-CZ', 'da-DK', 'de-DE', 'en-AU', 'en-GB', 'en-HK', 'en-IN', 'en-NZ', 'en-US', 'en-ZA', 'en-ZM', 'es-ES', 'fr-FR', 'fr-CA', 'hu-HU', 'it-IT', 'nb-NO', 'nl-NL', 'nn-NO', 'pl-PL', 'pt-BR', 'pt-PT', 'ru-RU', 'sl-SI', 'sr-RS', 'sr-RS@latin', 'sv-SE', 'tr-TR', 'uk-UA']`.
 **isOctal(str)**                        | check if the string is a valid octal number.
-**isPassportNumber(str, countryCode)**    | check if the string is a valid passport number.<br/><br/>(countryCode is one of `[ 'AM', 'AR', 'AT', 'AU', 'BE', 'BG', 'BY', 'CA', 'CH', 'CN', 'CY', 'CZ', 'DE', 'DK', 'DZ', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE' 'IN', 'IS', 'IT', 'JP', 'KR', 'LT', 'LU', 'LV', 'LY', 'MT', 'NL', 'PO', 'PT', 'RO', 'RU', 'SE', 'SL', 'SK', 'TR', 'UA', 'US' ]`.
+**isPassportNumber(str, countryCode)**    | check if the string is a valid passport number.<br/><br/>(countryCode is one of `[ 'AM', 'AR', 'AT', 'AU', 'BE', 'BG', 'BY', 'BR', 'CA', 'CH', 'CN', 'CY', 'CZ', 'DE', 'DK', 'DZ', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HU', 'IE' 'IN', 'IS', 'IT', 'JP', 'KR', 'LT', 'LU', 'LV', 'LY', 'MT', 'NL', 'PO', 'PT', 'RO', 'RU', 'SE', 'SL', 'SK', 'TR', 'UA', 'US' ]`.
 **isPort(str)**                         | check if the string is a valid port number.
 **isPostalCode(str, locale)**           | check if the string is a postal code,<br/><br/>(locale is one of `[ 'AD', 'AT', 'AU', 'AZ', 'BE', 'BG', 'BR', 'BY', 'CA', 'CH', 'CN', 'CZ', 'DE', 'DK', 'DO', 'DZ', 'EE', 'ES', 'FI', 'FR', 'GB', 'GR', 'HR', 'HT', 'HU', 'ID', 'IE' 'IL', 'IN', 'IR', 'IS', 'IT', 'JP', 'KE', 'LI', 'LT', 'LU', 'LV', 'MT', 'MX', 'MY', 'NL', 'NO', 'NP', 'NZ', 'PL', 'PR', 'PT', 'RO', 'RU', 'SA', 'SE', 'SG', 'SI', 'TH', 'TN', 'TW', 'UA', 'US', 'ZA', 'ZM' ]` OR 'any'. If 'any' is used, function will check if any of the locals match. Locale list is `validator.isPostalCodeLocales`.).
 **isRFC3339(str)**                      | check if the string is a valid [RFC 3339](https://tools.ietf.org/html/rfc3339) date.
@@ -153,7 +153,7 @@ Validator                               | Description
 **isUppercase(str)**                    | check if the string is uppercase.
 **isSlug**                              | Check if the string is of type slug. `Options` allow a single hyphen between string. e.g. [`cn-cn`, `cn-c-c`]
 **isStrongPassword(str [, options])**   | Check if a password is strong or not. Allows for custom requirements or scoring rules. If `returnScore` is true, then the function returns an integer score for the password rather than a boolean.<br/>Default options: <br/>`{ minLength: 8, minLowercase: 1, minUppercase: 1, minNumbers: 1, minSymbols: 1, returnScore: false, pointsPerUnique: 1, pointsPerRepeat: 0.5, pointsForContainingLower: 10, pointsForContainingUpper: 10, pointsForContainingNumber: 10, pointsForContainingSymbol: 10 }`
-**isTaxID(str, locale)**                | Check if the given value is a valid Tax Identification    Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-GB', 'en-IE', 'en-US', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV' 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE' ]`
+**isTaxID(str, locale)**                | Check if the given value is a valid Tax Identification    Number. Default locale is `en-US`.<br/><br/>More info about exact TIN support can be found in `src/lib/isTaxID.js`<br/><br/>Supported locales: `[ 'bg-BG', 'cs-CZ', 'de-AT', 'de-DE', 'dk-DK', 'el-CY', 'el-GR', 'en-GB', 'en-IE', 'en-US', 'es-ES', 'et-EE', 'fi-FI', 'fr-BE', 'fr-FR', 'fr-LU', 'hr-HR', 'hu-HU', 'it-IT', 'lb-LU', 'lt-LT', 'lv-LV' 'mt-MT', 'nl-BE', 'nl-NL', 'pl-PL', 'pt-BR', 'pt-PT', 'ro-RO', 'sk-SK', 'sl-SI', 'sv-SE' ]`
 **isURL(str [, options])**              | check if the string is an URL.<br/><br/>`options` is an object which defaults to `{ protocols: ['http','https','ftp'], require_tld: true, require_protocol: false, require_host: true, require_valid_protocol: true, allow_underscores: false, host_whitelist: false, host_blacklist: false, allow_trailing_dot: false, allow_protocol_relative_urls: false, disallow_auth: false }`.<br/><br/>require_protocol - if set as true isURL will return false if protocol is not present in the URL.<br/>require_valid_protocol - isURL will check if the URL's protocol is present in the protocols option.<br/>protocols - valid protocols can be modified with this option.<br/>require_host - if set as false isURL will not check if host is present in the URL.<br/>require_port - if set as true isURL will check if port is present in the URL.<br/>allow_protocol_relative_urls - if set as true protocol relative URLs will be allowed.<br/>validate_length - if set as false isURL will skip string length validation (2083 characters is IE max URL length).
 **isUUID(str [, version])**             | check if the string is a UUID (version 3, 4 or 5).
 **isVariableWidth(str)**                | check if the string contains a mixture of full and half-width chars.
diff --git a/src/lib/isPassportNumber.js b/src/lib/isPassportNumber.js
index 76fd0827e..0c1582e57 100644
--- a/src/lib/isPassportNumber.js
+++ b/src/lib/isPassportNumber.js
@@ -13,6 +13,7 @@ const passportRegexByCountryCode = {
   AU: /^[A-Z]\d{7}$/, // AUSTRALIA
   BE: /^[A-Z]{2}\d{6}$/, // BELGIUM
   BG: /^\d{9}$/, // BULGARIA
+  BR: /^[A-Z]{2}\d{6}$/, // BRAZIL
   BY: /^[A-Z]{2}\d{7}$/, // BELARUS
   CA: /^[A-Z]{2}\d{6}$/, // CANADA
   CH: /^[A-Z]\d{7}$/, // SWITZERLAND
diff --git a/src/lib/isTaxID.js b/src/lib/isTaxID.js
index 90a0c2a96..f1ebae6d9 100644
--- a/src/lib/isTaxID.js
+++ b/src/lib/isTaxID.js
@@ -852,6 +852,93 @@ function plPlCheck(tin) {
   return checksum === parseInt(tin[10], 10);
 }
 
+/*
+* pt-BR validation function
+* (Cadastro de Pessoas Físicas (CPF, persons)
+* Cadastro Nacional de Pessoas Jurídicas (CNPJ, entities)
+* Both inputs will be validated
+*/
+
+function ptBrCheck(tin) {
+  tin = tin.replace(/[^\d]+/g, '');
+  if (tin === '') return false;
+
+  if (tin.length === 11) {
+    let sum;
+    let ramainder;
+    sum = 0;
+    tin = tin.replace(/[^\d]+/g, '');
+
+    if ( // Reject known invalid CPFs
+      tin === '11111111111' ||
+      tin === '22222222222' ||
+      tin === '33333333333' ||
+      tin === '44444444444' ||
+      tin === '55555555555' ||
+      tin === '66666666666' ||
+      tin === '77777777777' ||
+      tin === '88888888888' ||
+      tin === '99999999999' ||
+      tin === '00000000000'
+    ) return false;
+
+    for (let i = 1; i <= 9; i++) sum += parseInt(tin.substring(i - 1, i), 10) * (11 - i);
+    ramainder = (sum * 10) % 11;
+    if ((ramainder === 10) || (ramainder === 11)) ramainder = 0;
+    if (ramainder !== parseInt(tin.substring(9, 10), 10)) return false;
+    sum = 0;
+
+    for (let i = 1; i <= 10; i++) sum += parseInt(tin.substring(i - 1, i), 10) * (12 - i);
+    ramainder = (sum * 10) % 11;
+    if ((ramainder === 10) || (ramainder === 11)) ramainder = 0;
+    if (ramainder !== parseInt(tin.substring(10, 11), 10)) return false;
+
+    return true;
+  }
+
+  if (tin.length !== 14) { return false; }
+
+  if ( // Reject know invalid CNPJs
+    tin === '00000000000000' ||
+    tin === '11111111111111' ||
+    tin === '22222222222222' ||
+    tin === '33333333333333' ||
+    tin === '44444444444444' ||
+    tin === '55555555555555' ||
+    tin === '66666666666666' ||
+    tin === '77777777777777' ||
+    tin === '88888888888888' ||
+    tin === '99999999999999') { return false; }
+
+  let length = tin.length - 2;
+  let identifiers = tin.substring(0, length);
+  let verificators = tin.substring(length);
+  let sum = 0;
+  let pos = length - 7;
+
+  for (let i = length; i >= 1; i--) {
+    sum += identifiers.charAt(length - i) * pos;
+    pos -= 1;
+    if (pos < 2) { pos = 9; }
+  }
+  let result = sum % 11 < 2 ? 0 : 11 - (sum % 11);
+  if (result !== parseInt(verificators.charAt(0), 10)) { return false; }
+
+  length += 1;
+  identifiers = tin.substring(0, length);
+  sum = 0;
+  pos = length - 7;
+  for (let i = length; i >= 1; i--) {
+    sum += identifiers.charAt(length - i) * pos;
+    pos -= 1;
+    if (pos < 2) { pos = 9; }
+  }
+  result = sum % 11 < 2 ? 0 : 11 - (sum % 11);
+  if (result !== parseInt(verificators.charAt(1), 10)) { return false; }
+
+  return true;
+}
+
 /*
  * pt-PT validation function
  * (Número de identificação fiscal (NIF), persons/entities)
@@ -1039,6 +1126,7 @@ const taxIdFormat = {
   'mt-MT': /^\d{3,7}[APMGLHBZ]$|^([1-8])\1\d{7}$/i,
   'nl-NL': /^\d{9}$/,
   'pl-PL': /^\d{10,11}$/,
+  'pt-BR': /^\d{11,14}$/,
   'pt-PT': /^\d{9}$/,
   'ro-RO': /^\d{13}$/,
   'sk-SK': /^\d{6}\/{0,1}\d{3,4}$/,
@@ -1076,6 +1164,7 @@ const taxIdCheck = {
   'mt-MT': mtMtCheck,
   'nl-NL': nlNlCheck,
   'pl-PL': plPlCheck,
+  'pt-BR': ptBrCheck,
   'pt-PT': ptPtCheck,
   'ro-RO': roRoCheck,
   'sk-SK': skSkCheck,
diff --git a/test/validators.js b/test/validators.js
index 34b6474e8..b588a42d2 100644
--- a/test/validators.js
+++ b/test/validators.js
@@ -2289,6 +2289,18 @@ describe('Validators', () => {
       ],
     });
 
+    test({
+      validator: 'isPassportNumber',
+      args: ['BR'],
+      valid: [
+        'FZ973689',
+        'GH231233',
+      ],
+      invalid: [
+        'ABX29332',
+      ],
+    });
+
     test({
       validator: 'isPassportNumber',
       args: ['BY'],
@@ -9965,6 +9977,22 @@ describe('Validators', () => {
         '2234567855',
         '02223013623'],
     });
+    test({
+      validator: 'isTaxID',
+      args: ['pt-BR'],
+      valid: [
+        '35161990910',
+        '74407265027',
+        '05423994000172',
+        '11867044000130'],
+      invalid: [
+        '170.691.440-72',
+        '01494282042',
+        '11111111111',
+        '94.592.973/0001-82',
+        '28592361000192',
+        '11111111111111'],
+    });
     test({
       validator: 'isTaxID',
       args: ['pt-PT'],