diff --git a/.changeset/itchy-eggs-impress.md b/.changeset/itchy-eggs-impress.md
new file mode 100644
index 000000000..c3d70dc8c
--- /dev/null
+++ b/.changeset/itchy-eggs-impress.md
@@ -0,0 +1,7 @@
+---
+'@linaria/babel-preset': patch
+'@linaria/tags': patch
+'@linaria/testkit': patch
+---
+
+Add the tagSource property for processors, indicating the package and name of the imported processor.
diff --git a/packages/babel/src/utils/getTagProcessor.ts b/packages/babel/src/utils/getTagProcessor.ts
index 8cd5a721e..ed52c10a8 100644
--- a/packages/babel/src/utils/getTagProcessor.ts
+++ b/packages/babel/src/utils/getTagProcessor.ts
@@ -18,6 +18,7 @@ import type {
   Params,
   IFileContext,
   ExpressionValue,
+  TagSource,
 } from '@linaria/tags';
 import type { IImport, StrictOptions } from '@linaria/utils';
 import {
@@ -34,6 +35,7 @@ import getSource from './getSource';
 
 type BuilderArgs = ConstructorParameters<typeof BaseProcessor> extends [
   Params,
+  TagSource,
   typeof t,
   SourceLocation | null,
   (replacement: Expression, isPure: boolean) => void,
@@ -164,11 +166,13 @@ function getProcessorForIdentifier(
     StrictOptions,
     'classNameSlug' | 'displayName' | 'evaluate' | 'tagResolver'
   >
-): [ProcessorClass, NodePath<Identifier | MemberExpression>] | [null, null] {
+):
+  | [ProcessorClass, TagSource, NodePath<Identifier | MemberExpression>]
+  | [null, null, null] {
   const pathBinding = path.scope.getBinding(path.node.name);
   if (!pathBinding) {
     // It's not a binding, so it's not a tag
-    return [null, null];
+    return [null, null, null];
   }
 
   const tagResolver = options.tagResolver ?? (() => null);
@@ -203,28 +207,29 @@ function getProcessorForIdentifier(
     .filter((i) => i[1] === null || i[1].isExpression());
 
   if (relatedImports.length === 0) {
-    return [null, null];
+    return [null, null, null];
   }
 
-  const [Processor = null, tagPath = null] =
+  const [Processor = null, tagSource = null, tagPath = null] =
     relatedImports
       .map(
-        ([imp, p]): [
+        ([{ imported, source }, p]): [
           ProcessorClass | null,
+          TagSource,
           NodePath<Identifier | MemberExpression> | null
         ] => {
-          const source = tagResolver(imp.source, imp.imported);
-          const processor = source
-            ? getProcessorFromFile(source)
-            : getProcessorFromPackage(imp.source, imp.imported, filename);
-          return [processor, p];
+          const customFile = tagResolver(source, imported);
+          const processor = customFile
+            ? getProcessorFromFile(customFile)
+            : getProcessorFromPackage(source, imported, filename);
+          return [processor, { imported, source }, p];
         }
       )
       .find(([proc]) => proc) ?? [];
 
-  return Processor === null || tagPath === null
-    ? [null, null]
-    : [Processor, tagPath];
+  return Processor === null || tagSource === null || tagPath === null
+    ? [null, null, null]
+    : [Processor, tagSource, tagPath];
 }
 
 function getBuilderForIdentifier(
@@ -236,14 +241,14 @@ function getBuilderForIdentifier(
     'classNameSlug' | 'displayName' | 'evaluate' | 'tagResolver'
   >
 ): Builder | null {
-  const [Processor, tagPath] = getProcessorForIdentifier(
+  const [Processor, tagSource, tagPath] = getProcessorForIdentifier(
     path,
     imports,
     filename,
     options
   );
 
-  if (!Processor || !tagPath) {
+  if (!Processor || !tagSource || !tagPath) {
     return null;
   }
 
@@ -345,6 +350,7 @@ function getBuilderForIdentifier(
   return (...args: BuilderArgs) =>
     new Processor(
       params,
+      tagSource,
       astService,
       tagPath.node.loc ?? null,
       replacer,
diff --git a/packages/tags/src/BaseProcessor.ts b/packages/tags/src/BaseProcessor.ts
index e45b5330d..4647203f3 100644
--- a/packages/tags/src/BaseProcessor.ts
+++ b/packages/tags/src/BaseProcessor.ts
@@ -29,6 +29,11 @@ export type TailProcessorParams = ProcessorParams extends [Params, ...infer T]
   ? T
   : never;
 
+export type TagSource = {
+  imported: string;
+  source: string;
+};
+
 export default abstract class BaseProcessor {
   public static SKIP = Symbol('skip');
 
@@ -50,6 +55,7 @@ export default abstract class BaseProcessor {
 
   public constructor(
     params: Params,
+    public tagSource: TagSource,
     protected readonly astService: typeof t & {
       addDefaultImport: (source: string, nameHint?: string) => Identifier;
       addNamedImport: (
diff --git a/packages/testkit/src/utils/getTagProcessor.test.ts b/packages/testkit/src/utils/getTagProcessor.test.ts
index be8bd0387..60043a461 100644
--- a/packages/testkit/src/utils/getTagProcessor.test.ts
+++ b/packages/testkit/src/utils/getTagProcessor.test.ts
@@ -32,7 +32,7 @@ const run = (code: string): BaseProcessor | null => {
   return result;
 };
 
-function tagSource(processor: BaseProcessor | null): string | undefined {
+function tagToString(processor: BaseProcessor | null): string | undefined {
   if (!processor) return undefined;
   return processor.toString();
 }
@@ -50,7 +50,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('renamedStyled(Cmp)`…`');
+    expect(tagToString(result)).toBe('renamedStyled(Cmp)`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'styled',
+      source: '@linaria/atomic',
+    });
   });
 
   it('imported component', () => {
@@ -63,7 +67,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('styled(Layout)`…`');
+    expect(tagToString(result)).toBe('styled(Layout)`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'styled',
+      source: '@linaria/react',
+    });
   });
 
   it('renamedStyled(Cmp)``', () => {
@@ -77,7 +85,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('renamedStyled(Cmp)`…`');
+    expect(tagToString(result)).toBe('renamedStyled(Cmp)`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'styled',
+      source: '@linaria/react',
+    });
   });
 
   it('(0, react_1.styled)(Cmp)``', () => {
@@ -91,7 +103,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('react_1.styled(Cmp)`…`');
+    expect(tagToString(result)).toBe('react_1.styled(Cmp)`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'styled',
+      source: '@linaria/react',
+    });
   });
 
   it('styled(Cmp)``', () => {
@@ -105,7 +121,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('styled(Cmp)`…`');
+    expect(tagToString(result)).toBe('styled(Cmp)`…`');
   });
 
   it('styled(hoc(Title))``', () => {
@@ -126,7 +142,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('styled(hoc(Title))`…`');
+    expect(tagToString(result)).toBe('styled(hoc(Title))`…`');
   });
 
   it('styled(() => { someLogic(); })``', () => {
@@ -143,7 +159,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('styled(() => {…})`…`');
+    expect(tagToString(result)).toBe('styled(() => {…})`…`');
   });
 
   it('renamedStyled.div``', () => {
@@ -155,7 +171,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("renamedStyled('div')`…`");
+    expect(tagToString(result)).toBe("renamedStyled('div')`…`");
   });
 
   it('(0, react_1.styled.div)``', () => {
@@ -167,7 +183,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("react_1.styled('div')`…`");
+    expect(tagToString(result)).toBe("react_1.styled('div')`…`");
   });
 
   it('styled.div``', () => {
@@ -179,7 +195,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("styled('div')`…`");
+    expect(tagToString(result)).toBe("styled('div')`…`");
   });
 
   it('styled("div")``', () => {
@@ -191,7 +207,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("styled('div')`…`");
+    expect(tagToString(result)).toBe("styled('div')`…`");
   });
 
   it('(0, core_1.css)``', () => {
@@ -203,7 +219,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('core_1.css`…`');
+    expect(tagToString(result)).toBe('core_1.css`…`');
   });
 
   it('css``', () => {
@@ -215,7 +231,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('css`…`');
+    expect(tagToString(result)).toBe('css`…`');
   });
 
   it('atomic css``', () => {
@@ -227,7 +243,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('css`…`');
+    expect(tagToString(result)).toBe('css`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'css',
+      source: '@linaria/atomic',
+    });
   });
 
   it('re-imported css', () => {
@@ -239,7 +259,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe('css`…`');
+    expect(tagToString(result)).toBe('css`…`');
+    expect(result?.tagSource).toEqual({
+      imported: 'css',
+      source: 'linaria',
+    });
   });
 
   it('re-imported styled', () => {
@@ -251,7 +275,11 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("styled('div')`…`");
+    expect(tagToString(result)).toBe("styled('div')`…`");
+    expect(result?.tagSource).toEqual({
+      imported: 'styled',
+      source: 'linaria/react',
+    });
   });
 
   it('import from unknown package', () => {
@@ -274,7 +302,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("renamedStyled('div')`…`");
+    expect(tagToString(result)).toBe("renamedStyled('div')`…`");
   });
 
   it('require and destructing', () => {
@@ -285,7 +313,7 @@ describe('getTagProcessor', () => {
     `
     );
 
-    expect(tagSource(result)).toBe("styled('div')`…`");
+    expect(tagToString(result)).toBe("styled('div')`…`");
   });
 
   describe('invalid usage', () => {