Streamline Bill.com with this guide to merging duplicate vendors. Learn best practices, step-by-step instructions, and troubleshooting tips for accurate reporting and efficient AP.

A cluttered vendor list in Bill.com is more than just a minor annoyance; it can lead to potential payment errors, inaccurate reports, and sync problems with your accounting software. Duplicate vendors often appear due to typos, variations in company names ("Big Co." vs. "Big Company Inc."), or different team members entering the same vendor in slightly different ways. This guide will walk you through the exact steps to merge duplicate vendors, explore the best practices to follow before you start, and explain what to do if you encounter any issues.
Before jumping into the "how-to," it's worth understanding why merging vendors is so important. This seemingly small administrative task directly supports the integrity of your financial data. When you maintain a clean and accurate master vendor file, you actively prevent common accounting headaches.
There are three main benefits to keeping your vendor list tidy:
The single most important thing to know about merging vendors in Bill.com is that the action is permanent and irreversible. Once you merge two vendor records, you cannot undo it. This is why a careful review before you begin is essential to avoid mistakes. Follow this pre-merge checklist every time.
First, you need to decide which vendor record you will keep and which one will be merged into it.
Open both vendor records in separate browser tabs to compare them side-by-side. Your "keeper" should generally be the record that has the most accurate and complete information.
Thoroughly inspect the vendor record you've chosen as your keeper. This is the information that will survive the merge. Check the following details carefully:
Before you merge the "goer" away, give it one final review. Look at its transaction history. Check for any unpaid bills, vendor credits, or pending payments associated with this duplicate record. Don't worry; all this historical data will automatically move to the keeper record during the merge. The purpose of this final check is simply to ensure there are no strange or unexpected transactions that need to be investigated separately before you proceed.
Once you've completed the pre-merge checklist and you're confident in your "keeper" and "goer" selections, you're ready to perform the merge. The process is straightforward and only takes a minute.
Note: You must have Administrator permissions or a custom role with "Manage Vendors" permissions to merge vendors.
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After you merge the vendors in Bill.com, the system automatically sends this update to your connected accounting platform. If you have a sync set up with QuickBooks Online, Xero, or Sage Intacct, Bill.com will instruct that software to perform the same merge on its end. This keeps your vendor lists consistent across both systems.
You can verify this by checking the Sync Status page in Bill.com after the merge. You should see a successful update indicating the vendor merge was communicated to your accounting system. This automation is key to maintaining a single source of truth for your vendor data.
While the process is usually smooth, you might occasionally run into a snag. Here are a couple of common issues and how to resolve them.
If you navigate to a vendor record and don't see the "Merge" option under "More actions," the cause is almost always related to user permissions. You must be logged in as a user with an "Administrator" role or a custom role that has been granted full "Manage Vendor" privileges. If you need to perform a merge, contact your firm's Bill.com administrator to either have them perform the merge for you or update your user role's permissions.
Occasionally, you might see a sync error after a merge. This often happens if the "keeper" and "goer" vendors in Bill.com were linked to two different vendor records in your accounting software. The sync fails because your accounting software doesn't know how to merge two separate records that Bill.com now views as one. In this case, go to your accounting software first. Merge the two corresponding vendor records there. Then, return to Bill.com and run the sync again. This should resolve the error.
Regularly merging duplicate vendors in Bill.com is a foundational practice for good data hygiene. It protects the accuracy of your financial reports, prevents costly payment errors, and ensures smoother 1099 filings at year-end. By following a consistent pre-merge checklist, you can keep your vendor file clean and your accounts payable process running smoothly.
Maintaining clean vendor data is also the first step toward confident tax compliance. When questions arise about specific 1099 requirements or the taxability of a particular vendor payment, teams often spend hours searching for clear guidance. With our AI research assistant, Feather AI, accounting professionals can get instant, citation-backed answers to complex tax questions, turning hours of manual research into seconds of confident decision-making.
Written by Feather Team
Published on December 20, 2025