Hi there, @michianaes.
Thanks for taking the time to post here in the Community. I can provide some clarification about the feature you need in QuickBooks Online.
Currently, an option or settings for spell checker is unavailable in the online version. I recommend checking your web browser or mobile settings and check if a built-in feature is available.
Also, you can try searching for a third-party application or browser extensions that will help you check the spelling while using QuickBooks. However, we can't suggest a specific app you should use for the product.
I appreciate your input on this feature. We'll strive to improve the features in QuickBooks, and this preference might be available in the future. In the meantime, I suggest you visit our QuickBooks Blog to stay updated with all the changes.
As always, if you need tips and related articles in managing your account, you can check out our QuickBooks Community help website.
Drop me a comment below if you have any other questions. I'll be more than happy to help. Wishing you a good one.
