Default check number when writing checks

Welcome to the Community space, @Dale44.

Upon reading your post, it looks like the Custom Transaction numbers in your Accounts and Settings aren't enabled. Thus, it's the reason your check shows a Check number written a month ago when you're writing a Check inside QuickBooks Online (QBO). We'll write down the steps below to help you get through this and have your number automated so they'll be in sequence inside your company file:

1. Access your QuickBooks Online company.
2. On the top-right corner, click the Gear icon.
3. Select Accounts and settings.
4. Go to the Sales section and click the Pencil icon for Sales for content.
5. Tick the Slider button for Custom transaction numbers.
6. Select the Save button, and then click Done.

Additionally, we're adding these articles to help you modify your printer settings for checks, and manage expenses inside the program:

• Configure your print settings for printing checks in QuickBooks Online.
• Enter and manage expenses in QuickBooks Online.

We're always open to provide assistance if you have any additional QuickBooks-related concerns. @Dale44. Please don't hesitate to visit the Community space or comment below so we can get back to you as soon as possible. Stay safe, and have a good one!

The setting was already enabled.  Switched off and then back on and it still brings up the check number that was previously used.

Hello there, @Dale44.

Since you've already enabled the settings and the check number is still displaying a number from the past, I suggest submitting feedback to our Product Engineers regarding the automation of this feature. They're accountable for any modifications to the program in the future.

To send your request:

1. Go to the Gear icon.
2. Select Feedback.
3. Enter your comments or product suggestions.
4. Tap Next to submit.

As of now, if you uncheck the "Print later" box, you will need to update the check number manually. After manually changing the check number, it will automatically adjust the next time a check is created.

Additionally, here's an article that will help you how to record, edit, and delete expenses inside the program: Enter and manage expenses in QuickBooks Online.

If you have any further concerns regarding your checks, please comment below. I'll be happy to assist you.

Has there been a fix for this yet? 

It's nice to see you here in the Community, @Tops Unlimited.

I understand the importance of making the check number default in QuickBooks Online (QBO). Let me share an insight about this feature you want to have in your QuickBooks account.

Currently, the feature to make the check number default is unavailable. For now, I recommend sending feedback about it.

Here's how:

1. At the upper right corner, click the Gear icon.
2. Under the Profile, select Feedback.
3. Enter your comments or product suggestions.
4. Then, select Next to submit a feedback.

You can also check this to track your request: Customer Feedback for QuickBooks Online.

I will also include a helpful article that guides you in printing a check from your print queue: Print a check in QuickBooks Online.

Please don't hesitate to leave a comment below. If you have further questions about writing checks or other QBO-related concerns. I'll be here to assist you.