For each care provider, you will need to provide their name, address, and taxpayer identification number. If the care provider is an individual, their Social Security number will be required. If the care provider is a business or organization, their Employer Identification Number (EIN) will be required. It is important to note that you should keep records of the care provider's name, address, and taxpayer identification number, as well as the services provided and the dates of service, in case you are selected for an audit. The IRS may request this information to verify the expenses claimed on your tax return.