My company is changing from Ohio to California, How come tax rates will apply?

Welcome to the Community, @billing63.

You need to update your Company address and the Tax agency for the California tax rates to be applied. I'll guide you how:

1. Go to the Gear icon.
2. Select Account and Settings then choose Company.
3. Click the pencil icon in the Address section, then enter your new address information.
4. Click Save and Done.

Once done, make sure to update or add the new tax agency.

Here's how:

1. Select Taxes at the left panel.
2. Choose Sales tax.
3. Click Sales tax settings.
4. Choose Add agency to have a new one.
5. In the Add agency section, choose the Agency, Filing frequency, and the Start date.
6. When done, click Save.

To know more about Sales tax in QuickBooks Online, I've added these articles for the details:

• Set up where you collect sales tax in QuickBooks Online.
• Set up and use automated sales tax in QuickBooks Online.

Just click the Reply button if you need anything else. I'm here to help you out. Have a pleasant day!