diff --git a/rollup.config.js b/rollup.config.js
index d3a65ae96..741fc2206 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -21,7 +21,7 @@ function createEntry(options) {
   const config = {
     input,
     external: [
-      'vue', 
+      'vue',
       'lodash/mergeWith',
       'lodash/camelCase',
       'lodash/upperFirst',
@@ -37,7 +37,7 @@ function createEntry(options) {
   }
 
   if (format === 'es') {
-    config.output.file = isBrowser ? pkg.browser : pkg.module 
+    config.output.file = isBrowser ? pkg.browser : pkg.module
   }
   if (format === 'cjs') {
     config.output.file = pkg.main
diff --git a/src/config.ts b/src/config.ts
new file mode 100644
index 000000000..5d20463d5
--- /dev/null
+++ b/src/config.ts
@@ -0,0 +1,5 @@
+import { GlobalMountOptions } from './types'
+
+export const config: { global: GlobalMountOptions } = {
+  global: {}
+}
diff --git a/src/index.ts b/src/index.ts
index 891f92be2..977786aa7 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,5 @@
 import { mount } from './mount'
 import { RouterLinkStub } from './components/RouterLinkStub'
+import { config } from './config'
 
-export { mount, RouterLinkStub }
+export { mount, RouterLinkStub, config }
diff --git a/src/mount.ts b/src/mount.ts
index 7dda523b2..0f03bcd40 100644
--- a/src/mount.ts
+++ b/src/mount.ts
@@ -4,11 +4,7 @@ import {
   VNode,
   defineComponent,
   VNodeNormalizedChildren,
-  ComponentOptions,
   transformVNodeArgs,
-  Plugin,
-  Directive,
-  Component,
   reactive,
   ComponentPublicInstance,
   ComponentOptionsWithObjectProps,
@@ -17,6 +13,9 @@ import {
   ExtractPropTypes
 } from 'vue'
 
+import { config } from './config'
+import { GlobalMountOptions } from './types'
+import { mergeGlobalProperties } from './utils'
 import { createWrapper, VueWrapper } from './vue-wrapper'
 import { attachEmitListener } from './emitMixin'
 import { createDataMixin } from './dataMixin'
@@ -36,17 +35,7 @@ interface MountingOptions<Props> {
     default?: Slot
     [key: string]: Slot
   }
-  global?: {
-    plugins?: Plugin[]
-    mixins?: ComponentOptions[]
-    mocks?: Record<string, any>
-    stubs?: Record<any, any>
-    provide?: Record<any, any>
-    // TODO how to type `defineComponent`? Using `any` for now.
-    components?: Record<string, Component | object>
-    directives?: Record<string, Directive>
-  }
-  stubs?: Record<string, any>
+  global?: GlobalMountOptions
 }
 
 // Component declared with defineComponent
@@ -139,11 +128,13 @@ export function mount(
   // create the app
   const app = createApp(Parent)
 
+  const global = mergeGlobalProperties(config.global, options?.global)
+
   // global mocks mixin
-  if (options?.global?.mocks) {
+  if (global?.mocks) {
     const mixin = {
       beforeCreate() {
-        for (const [k, v] of Object.entries(options.global?.mocks)) {
+        for (const [k, v] of Object.entries(global.mocks)) {
           this[k] = v
         }
       }
@@ -153,30 +144,30 @@ export function mount(
   }
 
   // use and plugins from mounting options
-  if (options?.global?.plugins) {
-    for (const use of options?.global?.plugins) app.use(use)
+  if (global?.plugins) {
+    for (const use of global.plugins) app.use(use)
   }
 
   // use any mixins from mounting options
-  if (options?.global?.mixins) {
-    for (const mixin of options?.global?.mixins) app.mixin(mixin)
+  if (global?.mixins) {
+    for (const mixin of global.mixins) app.mixin(mixin)
   }
 
-  if (options?.global?.components) {
-    for (const key of Object.keys(options?.global?.components))
-      app.component(key, options.global.components[key])
+  if (global?.components) {
+    for (const key of Object.keys(global.components))
+      app.component(key, global.components[key])
   }
 
-  if (options?.global?.directives) {
-    for (const key of Object.keys(options?.global?.directives))
-      app.directive(key, options.global.directives[key])
+  if (global?.directives) {
+    for (const key of Object.keys(global.directives))
+      app.directive(key, global.directives[key])
   }
 
   // provide any values passed via provides mounting option
-  if (options?.global?.provide) {
-    for (const key of Reflect.ownKeys(options.global.provide)) {
+  if (global?.provide) {
+    for (const key of Reflect.ownKeys(global.provide)) {
       // @ts-ignore: https://github.com/microsoft/TypeScript/issues/1863
-      app.provide(key, options.global.provide[key])
+      app.provide(key, global.provide[key])
     }
   }
 
diff --git a/src/types.ts b/src/types.ts
index 184494a67..d49ee8b43 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -1,3 +1,5 @@
+import { Component, ComponentOptions, Directive, Plugin } from 'vue'
+
 import { DOMWrapper } from './dom-wrapper'
 import { ErrorWrapper } from './error-wrapper'
 
@@ -23,3 +25,13 @@ interface NameSelector {
 
 export type FindComponentSelector = RefSelector | NameSelector | string
 export type FindAllComponentsSelector = NameSelector | string
+
+export type GlobalMountOptions = {
+  plugins?: Plugin[]
+  mixins?: ComponentOptions[]
+  mocks?: Record<string, any>
+  provide?: Record<any, any>
+  components?: Record<string, Component | object>
+  directives?: Record<string, Directive>
+  stubs?: Record<any, any>
+}
diff --git a/src/utils.ts b/src/utils.ts
index b4a362926..1f7723442 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -2,7 +2,28 @@ import camelCase from 'lodash/camelCase'
 import upperFirst from 'lodash/upperFirst'
 import kebabCase from 'lodash/kebabCase'
 import flow from 'lodash/flow'
+import mergeWith from 'lodash/mergeWith'
+import { GlobalMountOptions } from './types'
 
 const pascalCase = flow(camelCase, upperFirst)
 
 export { kebabCase, pascalCase }
+
+export function mergeGlobalProperties(
+  configGlobal = {},
+  mountGlobal = {}
+): GlobalMountOptions {
+  return mergeWith({}, configGlobal, mountGlobal, (objValue, srcValue, key) => {
+    switch (key) {
+      case 'mocks':
+      case 'provide':
+      case 'components':
+      case 'directives':
+      case 'globalProperties':
+        return { ...objValue, ...srcValue }
+      case 'plugins':
+      case 'mixins':
+        return [...(objValue || []), ...(srcValue || [])].filter(Boolean)
+    }
+  })
+}
diff --git a/tests/config.spec.ts b/tests/config.spec.ts
new file mode 100644
index 000000000..c1d1fa417
--- /dev/null
+++ b/tests/config.spec.ts
@@ -0,0 +1,96 @@
+import { config, mount } from '../src'
+import Hello from './components/Hello.vue'
+
+describe('config', () => {
+  beforeEach(() => {
+    config.global = {
+      components: undefined,
+      directives: undefined,
+      mixins: undefined,
+      plugins: undefined,
+      mocks: undefined,
+      provide: undefined
+    }
+  })
+
+  describe('components', () => {
+    const Component = {
+      template: '<div>{{ msg }} <hello/></div>',
+      props: ['msg']
+    }
+
+    it('allows setting components globally', () => {
+      config.global.components = { Hello }
+      const wrapper1 = mount(Component, { props: { msg: 'Wrapper1' } })
+      const wrapper2 = mount(Component, { props: { msg: 'Wrapper2' } })
+      expect(wrapper1.text()).toEqual('Wrapper1 Hello world')
+      expect(wrapper2.text()).toEqual('Wrapper2 Hello world')
+    })
+
+    it('allows overwriting globally set component config on a per mount instance', () => {
+      config.global.components = { Hello }
+      const HelloLocal = { template: '<div>Hello Overwritten</div>' }
+      const wrapper1 = mount(Component, { props: { msg: 'Wrapper1' } })
+      const wrapper2 = mount(Component, {
+        props: { msg: 'Wrapper2' },
+        global: { components: { Hello: HelloLocal } }
+      })
+      expect(wrapper1.text()).toEqual('Wrapper1 Hello world')
+      expect(wrapper2.text()).toEqual('Wrapper2 Hello Overwritten')
+    })
+  })
+
+  describe('directives', () => {
+    const Directive = {
+      beforeMount(el: Element) {
+        el.classList.add('DirectiveAdded')
+      }
+    }
+    const Component = { template: '<div v-directive>msg</div>' }
+
+    it('allows setting directives globally', () => {
+      config.global.directives = { Directive }
+      expect(mount(Component).classes()).toContain('DirectiveAdded')
+      expect(mount(Component).classes()).toContain('DirectiveAdded')
+    })
+
+    it('allows overwriting globally set directives', () => {
+      config.global.directives = { Directive }
+      const LocalDirective = {
+        beforeMount(el: Element) {
+          el.classList.add('LocallyDirectiveAdded')
+        }
+      }
+
+      expect(mount(Component).classes()).toContain('DirectiveAdded')
+      expect(
+        mount(Component, {
+          global: { directives: { Directive: LocalDirective } }
+        }).classes()
+      ).toContain('LocallyDirectiveAdded')
+    })
+  })
+
+  describe('mocks', () => {
+    it('sets mock everywhere', () => {
+      config.global.mocks = {
+        foo: 'bar'
+      }
+      const Component = { template: '<div>{{ foo }}</div>' }
+      expect(mount(Component).text()).toEqual('bar')
+      expect(mount(Component).text()).toEqual('bar')
+    })
+
+    it('allows overwriting a global mock', () => {
+      config.global.mocks = {
+        foo: 'bar'
+      }
+      const Component = { template: '<div>{{ foo }}</div>' }
+
+      expect(mount(Component).text()).toEqual('bar')
+      expect(
+        mount(Component, { global: { mocks: { foo: 'baz' } } }).text()
+      ).toEqual('baz')
+    })
+  })
+})