Repeat check numbers

You can turn it on or off completely in preferences.

Hi MA_Southern. As brconsultingid2 mentioned, you can turn this off from the settings within QuickBooks Online. It's nice and easy and I can guide you through in just a few steps. Here's how:

1. Click the Gear Icon then select Account and Settings
2. After that, on the left-hand side select the Advanced tab
3. Next, click on the Pencil in the Other Options this will allow you to uncheck the Warn if duplicate check number is used box.
4. Last, select Save 

Now you'll no longer receive any warnings when duplicating check numbers. Let me know if this helps, or if you need anything else just leave a reply below. I'm always excited to help. Have a great day. 

Depending on your volume and preference for solution you can also add a "A" to the end of the check number, or just duplicate it as you have been doing. Its best to not reuse check numbers there are nearly limitless numbers you can use, recommend if you can using fresh numbers. If the checks are already preprinted not much you can do. If you're using the bank feed to clear checks that's another consideration for how you handle this. In the end it will all come out in the bank reconciliation. 

How do I archive previous check numbers that are coming up duplicate?

Where is the gear icon?

I can help you archive duplicate checks and locate the gear icon in QuickBooks, @ladyfoose.

I'll make sure duplicate check numbers will resolved right a way. 

The Gear icon is located in the upper right corner of your QuickBooks Online account. See the sample screenshot below for your reference: 

If you're using QuickBooks Online, we can void the transaction to archive duplicate checks number.

Do the following: 

1. Go to the Expenses tab on the upper left side.
2. Click Filter drop-down arrow and choose Check as your Type. 
3. Customize the necessary information and hit Apply. 
4. Locate the duplicate checks and click the small drop-down arrow perpendicular to the transactions. 
5. Select Void and follow the on-screen instructions. 

See this link for more details: How to void or delete a check in QuickBooks Online.

Also, to avoid the duplicate numbers on your transactions, you can follow the steps outlined by Steve above. 

However if you're using QuickBooks Desktop, you're unable to see the Gear icon as this only available in Online. You can follow the steps instructed in this article to void the checks: Create, modify, and print checks. 

Visit this article below on how to supervise your vendor checks, bills, purchase orders, and other related topics: Expenses and vendors. Just change the product if your using different QuickBooks version. 

Feel free to drop me a line if you're struggling with managing your vendor transactions. I'd be happy to offer you my advice, and I'll be here for you every step of the way. Keep safe, ladyfoose.

Here is the answer to this question for QuickBooks Desktop. At the top of the QuickBooks Desktop file, click on Edit, then on Preferences, then click on Checking in the ribbon on the left-hand side, then click on the Company Preferences tab at the top of the menu that appears to the right. Four boxes down is the option called, "Warn about duplicate check numbers". Uncheck this box to turn off the warnings.

This answer you are giving is for QuickBooks Online users; the original question was asked about how to do it in QuickBooks Desktop. Please see my answer in this thread that I left on 05/10/2024. Honestly people.