You can enter a second home office after all of the information has been completed for the first one.
However, if you use the simplified method to calculate your home office expenses, only one office can use this method. The other one must use actual expenses or you will see an error message.
To learn more about adding a second home office and allocating your expenses between the two, see the following TurboTax help article:
How do I allocate expenses for two home offices?
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