can I have two separate Apple ID on one Mac pc

Adding one suggestion to Raicya’s already quite complete reply:

On your Mac … setup and use two separate local login accounts; each with it’s own local username and password.

Then configure the two separate local users with their respective AppleID login credentials.

Add a user or group on Mac – Apple Support (AU)

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.

See -> Sign in with your Apple ID -> Sign in with your Apple ID - Apple Support

Ah OK, that's clear why you want to use 2 x Apple ID on one Mac PC.

That is possible, you can also set up Family Sharing, see the following Apple articles:

Set up Family Sharing -> Set up Family Sharing - Apple Support

What is Family Sharing? -> What is Family Sharing? - Apple Support

Make sure that each family member has a unique Apple ID

Make sure that each family member has a unique Apple ID - Apple Support

Share App Store, Apple TV, and Apple Books purchases with Family Sharing on iPhone

Share App Store, Apple TV, and Apple Books purchases with Family Sharing on iPhone – Apple Support (UK)

Add a family member to your subscriptions from Apple

Add a family member to your shared subscriptions – Apple Support (UK)

Share iCloud+ with your family -> Share iCloud+ with your family - Apple Support

What types of content can I share with my family?

What types of content can I share with my family? - Apple Support

Use Family Sharing to share iTunes Store purchases on PC

Use Family Sharing to share iTunes Store purchases on PC - Apple Support (GE)

How to download apps and content that your family members purchased

How to download apps and content that your family members purchased - Apple Support

Hi Raicya

I would like two apple id's on same Mac pc not the family share. how would this be possible?