diff --git a/src/lib/isVAT.js b/src/lib/isVAT.js
index f561d3ae1..686e37028 100644
--- a/src/lib/isVAT.js
+++ b/src/lib/isVAT.js
@@ -52,10 +52,10 @@ export const vatMatchers = {
    * European Union VAT identification numbers
    */
   AT: str => /^(AT)?U\d{8}$/.test(str),
-  BE: str => /^(BE)?\d{10}$/.test(str),
+  BE: str => /^(BE)?[01]\d{9}$/.test(str),
   BG: str => /^(BG)?\d{9,10}$/.test(str),
   HR: str => /^(HR)?\d{11}$/.test(str),
-  CY: str => /^(CY)?\w{9}$/.test(str),
+  CY: str => /^(CY)?\d{8}[A-Z]$/.test(str),
   CZ: str => /^(CZ)?\d{8,10}$/.test(str),
   DK: str => /^(DK)?\d{8}$/.test(str),
   EE: str => /^(EE)?\d{9}$/.test(str),
@@ -64,20 +64,20 @@ export const vatMatchers = {
   DE: str => /^(DE)?\d{9}$/.test(str),
   EL: str => /^(EL)?\d{9}$/.test(str),
   HU: str => /^(HU)?\d{8}$/.test(str),
-  IE: str => /^(IE)?\d{7}\w{1}(W)?$/.test(str),
+  IE: str => /^(IE)?(\d{7}[A-W][A-Z]?|\d[A-Z+*]\d{5}[A-W])$/.test(str),
   IT: str => /^(IT)?\d{11}$/.test(str),
   LV: str => /^(LV)?\d{11}$/.test(str),
-  LT: str => /^(LT)?\d{9,12}$/.test(str),
+  LT: str => /^(LT)?(\d{7}|\d{10})1\d$/.test(str),
   LU: str => /^(LU)?\d{8}$/.test(str),
   MT: str => /^(MT)?\d{8}$/.test(str),
-  NL: str => /^(NL)?\d{9}B\d{2}$/.test(str),
+  NL: str => /^(NL)?\d{9}B(0[1-9]|[1-9]\d)$/.test(str),
   PL: str => /^(PL)?(\d{10}|(\d{3}-\d{3}-\d{2}-\d{2})|(\d{3}-\d{2}-\d{2}-\d{3}))$/.test(str),
   PT,
-  RO: str => /^(RO)?\d{2,10}$/.test(str),
+  RO: str => /^(RO)?[1-9]\d{1,9}$/.test(str),
   SK: str => /^(SK)?\d{10}$/.test(str),
-  SI: str => /^(SI)?\d{8}$/.test(str),
+  SI: str => /^(SI)?[1-9]\d{7}$/.test(str),
   ES: str => /^(ES)?(?:[ABEH]\d{8}|[NPQRSW]\d{7}[A-J]|[CDFGJUV]\d{7}[0-9A-J])$/.test(str),
-  SE: str => /^(SE)?\d{12}$/.test(str),
+  SE: str => /^(SE)?\d{10}01$/.test(str),
 
   /**
    * VAT numbers of non-EU countries
diff --git a/test/validators.test.js b/test/validators.test.js
index 98d2a12ff..510e698bd 100644
--- a/test/validators.test.js
+++ b/test/validators.test.js
@@ -15257,10 +15257,14 @@ describe('Validators', () => {
       valid: [
         'BE1234567890',
         '1234567890',
+        'BE0202239951',
+        '1004580993',
       ],
       invalid: [
         'BE 1234567890',
         '123456789',
+        'BE2345678901',
+        '9876543210',
       ],
     });
     test({
@@ -15293,12 +15297,15 @@ describe('Validators', () => {
       validator: 'isVAT',
       args: ['CY'],
       valid: [
-        'CY123456789',
-        '123456789',
+        'CY90000005D',
+        '10200585J',
+        'CY99000230P',
       ],
       invalid: [
         'CY 123456789',
         '12345678',
+        'CY123456789',
+        '1234567AB',
       ],
     });
     test({
@@ -15414,10 +15421,15 @@ describe('Validators', () => {
       valid: [
         'IE1234567AW',
         '1234567AW',
+        'IE3206488LH',
+        '8F52100V',
+        'IE4749148U',
       ],
       invalid: [
         'IE 1234567',
         '1234567',
+        'IE1234567X',
+        '12345678',
       ],
     });
     test({
@@ -15451,18 +15463,17 @@ describe('Validators', () => {
       validator: 'isVAT',
       args: ['LT'],
       valid: [
-        'LT123456789012',
-        '123456789012',
-        'LT12345678901',
-        '12345678901',
-        'LT1234567890',
-        '1234567890',
-        'LT123456789',
-        '123456789',
+        'LT212155811',
+        '119508113',
+        'LT100005242513',
+        '100012870515',
       ],
       invalid: [
         'LT 123456789012',
         '12345678',
+        'LT1234567890',
+        '12345678901',
+        'LT123456789',
       ],
     });
     test({
@@ -15495,6 +15506,8 @@ describe('Validators', () => {
       valid: [
         'NL123456789B10',
         '123456789B10',
+        'NL002564440B01',
+        '851029279B01',
       ],
       invalid: [
         'NL12345678 910',
@@ -15502,6 +15515,8 @@ describe('Validators', () => {
         'NL123456789B1',
         'GB12345678910',
         'NL123456789',
+        'NL123456789B00',
+        '123456789B00',
       ],
     });
     test({
@@ -15540,10 +15555,15 @@ describe('Validators', () => {
         '1234567890',
         'RO12',
         '12',
+        'RO19',
+        'RO361684',
+        '5022670',
       ],
       invalid: [
         'RO 12',
         '1',
+        'RO01590082',
+        '019',
       ],
     });
     test({
@@ -15564,10 +15584,14 @@ describe('Validators', () => {
       valid: [
         'SI12345678',
         '12345678',
+        'SI82646716',
+        '14717468',
       ],
       invalid: [
         'SI 12345678',
         '1234567',
+        'SI01234567',
+        '00000000',
       ],
     });
     test({
@@ -15596,12 +15620,15 @@ describe('Validators', () => {
       validator: 'isVAT',
       args: ['SE'],
       valid: [
-        'SE123456789012',
-        '123456789012',
+        'SE202100548901',
+        '556016068001',
+        'SE202100544801',
       ],
       invalid: [
         'SE 123456789012',
         '12345678901',
+        'SE123456789012',
+        '556016068002',
       ],
     });
     test({