When I try to downgrade it says You have "multicurrency" feature turned on in your current QuickBooks Plus SUBSCRIBED plan. This feature can't be turned off

Hello there, @InspectorTom. I'll share information about downgrading your company file in QuickBooks.

Yes, the multicurrency feature cannot be turned off, and you cannot switch to QuickBooks Simple Start since this version does not support multicurrency. Also, errors occur if there are turned-on features available in your current plan, which may caused by connected third-party apps.

The following are the features you have to turn off:

• Pause recurring transaction templates: 

1. Go to Settings and choose Recurring Transactions.
2. Select a template. Then click the Edit dropdown.
3. Tap Pause and then Pause again to confirm.

• Remove extra users
• Turn off inventory. You'll need to make your inventory items inactive if you're going to switch to QuickBooks Online Simple Start or Essentials. These versions don't support inventory tracking. Proceed to Steps 1 and 2 at this link for the detailed steps. 
• Cancel third-party apps

If you want to downgrade your subscription while the multicurrency feature is turned on, I suggest downgrading to QBO Essential. This version of QuickBooks also supports the multicurrency feature.

To downgrade your subscription, here's how:

1. Navigate to the Gear icon.
2. Click Billing & Subscription. Make sure your payment info is up-to-date.
3. Choose to Downgrade your plan.
4. Tap Choose Plan.
5. Review what's changing with your new plan.
6. When you're ready, hit Continue or Submit.
7. Review the billing details.
8. Tick Change plan, and then Done.

For more information about the process, see this article: Upgrade or downgrade your QuickBooks Online edition.

Additionally, I'll be adding these links that will help you manage your billing history and how to handle your multi-currency feature in QuickBooks:

• Manage billing, payment, and subscription info in QuickBooks Online
• Set up and use Multicurrency in QuickBooks Online

Please click the Reply button below if you have further concerns about downgrading your subscription or anything related to QuickBooks. We're always here to help. Take good care.