You need a new EIN, in general, when you change your entity’s ownership or structure.

You don’t need a new EIN if you just change your business name or address.

Check your entity type to see when you need a new EIN.

If you have an EIN as a sole proprietor or household employer, use that EIN for care you receive in your home. Don’t get a new EIN.

Get a new EIN if you:

  • Incorporate.
  • Form a partnership.
  • Declare bankruptcy.

You don’t need a new EIN if you:

  • Change your business name or locations.
  • Own multiple businesses.

Get a new EIN if you:

  • Get a new charter for a corporation from the secretary of state.
  • Are a corporation’s subsidiary.
  • Change to a partnership or a sole proprietorship.
  • Merge and create a new corporation.

You don’t need a new EIN if you:

  • Change your business name or location.
  • Declare bankruptcy.
  • Are a division of a corporation.
  • Are the surviving corporation after a corporate merger.
  • Choose to be taxed as an S corporation.
  • Reorganize to change only your identity or location.
  • Convert at the state level and don’t change your business structure.

Get a new EIN if you:

  • Incorporate.
  • Take over a partnership to operate as a sole proprietor.
  • End a partnership and begin a new one.

You don’t need a new EIN if you:

  • Change your name or location.
  • Declare bankruptcy.
  • Undergo a change in ownership that does not result in the termination of the partnership.

Get a new EIN if you:

  • Terminate an existing LLC and form a new corporation or partnership.
  • Own a single-member LLC and have to file excise or employment taxes.

You don’t need a new EIN if you:

  • Change your name or location.
  • Report income tax as a branch or division of another entity and you don’t have employees or owe excise tax.
  • Convert a partnership to an LLC classified as a partnership.
  • Change your tax election to a corporation or an S corporation.
  • Use your sole proprietor EIN for your single-member LLC and don’t choose to be taxed as a corporation or an S corporation and don’t have employees or owe excise tax.

Get a new EIN if you:

  • Create a trust with estate funds (not simply a continuation of the estate). The new EIN will be for the trust.
  • Represent an estate that operates a business that is not a legal entity separate from its owner (sole proprietorship) after the owner's death. The new EIN will be for the business.

You don’t need a new EIN if you:

  • Change the name or address of the administrator, personal representative or executor.

Get a new EIN if you:

  • Are the grantor of many trusts. Generally, you will need an EIN for each trust.
  • Change to an estate. The new EIN will be for the estate.
  • Change a living or inter vivos trust to a testamentary trust.
  • Terminate a living trust by distributing its property to a residual trust.
  • Have a revocable trust that changes to an irrevocable trust.

You don’t need a new EIN if you:

  • Change the trustee.
  • Change the grantor or beneficiary name or address.