Tax identification change to an existing supplier

Summary:

What guidance is there on how to best handle a supplier who is changing their TAX ID midway through the year but their legal name is remaining the same? How would you handle the tax reporting for payments made to the supplier under the two TAX ID numbers?

Content (please ensure you mask any confidential information):

For example, Anderson Home Improvements is an existing supplier with a 123456789 Tax ID #; however, they provided new paperwork indicated their Tax ID# has now changed to 234567891 but their legal name is staying the same. We need to capture what payments were made to each throughout the year.