A service that delivers the outcome: finished W‑9s.
Verified vendor W‑9s, posted to your books.
Paperhound chases every vendor, verifies each W‑9 and posts it to your books. Done for you, and you pay only for completed W‑9s.
For bookkeepers, accountants and finance teams · Pay only for completed W‑9s
Illustration with made-up vendor names, showing the kind of status you see.
The problem
W‑9s are easy to ask for and hard to finish.
Vendors do not respond
The request sits in their inbox while your team sends reminders by hand.
Mismatches surface late
The name and tax ID on the form do not match, and you find out at the worst time.
The work lands on your team
Someone reads every form, chases every vendor and keys the result into the vendor master.
Service
Hire the outcome, not another tool.
Most AI products give your team something new to run. Here the work is done for you, and AI agents do it behind the scenes.
AI software
- Your team learns it and runs it
- You configure workflows
- You watch for exceptions
- The vendor chase is still yours
Paperhound service
- Handled end to end
- No setup project
- Paperhound verifies each form and follows up with the vendor on any mismatch, so you do not have to
- You pay only for completed W‑9s
How it works
From vendor list to finished forms, in three steps.
Paperhound builds the AI agents that chase and orchestrate every vendor. You do not need to manage or worry about any of it.
- 1
Connect your books
Paperhound’s agents find the vendors you paid this year and which of them have no current W‑9 on file.
- 2
The agents collect
The agents email each vendor and follow up regularly. Where there is a phone number, they call. You can see the status of every vendor at any time.
- 3
Verify and post
The agents verify the tax ID and name, resolve any mismatch directly with the vendor, and post the completed form into your books, or into a spreadsheet if you prefer.
QuickBooks Online
Xero
Sage Intacct
Fusion
Zoho
Pricing
Pay per completed W‑9.
A W‑9 counts as completed when it is verified and posted into your books. A vendor who never responds costs you nothing.
Fit
Built for bookkeepers and finance teams.
Who this is for
Bookkeepers and accountants who handle vendor paperwork for clients, and finance teams that want the W‑9 chase off their plate before year-end.
Not a fit if
- You want software to run yourself.
- You already have a verified W‑9 on file for every vendor.
About
Meet the founder.
Paperhound is founded by Sankar Rao Amburkar, who has spent about 15 years in product in B2B enterprise SaaS. He leads AI Products at SpendFlo, where he built agents that run intake-to-pay work for enterprise customers. Before that he started his own AI accounts-payable company, and before that he worked at Airbase.
He builds the agents himself, and the work stays with Paperhound until your vendor records are complete.
FAQ
Frequently asked questions
What counts as a completed W-9?
The form is collected from the vendor, the tax ID and name are verified, and the form is posted into your books. Anything short of that costs you nothing.
When do I pay?
Each engagement runs for a period Paperhound and you agree upfront. At the end, Paperhound raises one invoice for the W-9s completed in that period. You pay only for completed W-9s. A W-9 counts as complete once it is verified against IRS records and posted to your books.
Is this software we have to learn?
No. Paperhound is a service. Paperhound reads your vendor list, then completes each W-9 the way you choose: through API access you authorize, where the agents update the vendor record themselves, or through a spreadsheet you update. AI agents run the work and deliver the finished W-9s. You do not configure anything.
What if a vendor never responds?
The agent keeps following up: emails on a regular schedule, and phone calls where there is a number. You see the status of every vendor. You pay only when the W-9 is completed.
How long does it take?
It depends on how quickly each vendor responds. Some W-9s are completed within a couple of hours, others take up to a week. Paperhound keeps following up with each vendor until the W-9 is complete.
What does "verified" mean?
Every W-9 is checked against IRS records through a verification vendor. Paperhound confirms that the tax ID exists, that it is valid, and that the name on the form matches the name the IRS has on file. If anything does not match, Paperhound goes back to the vendor to fix it before the W-9 counts as complete.
Is our vendor data safe?
Paperhound's agents connect directly to your email and your accounting system. They run in the USA on AWS-hosted infrastructure and use models such as ChatGPT and Claude.
What happens to my vendor data after the engagement?
Your vendor data stays yours. When the engagement ends, Paperhound hands all of it back to you and does not keep any copy.
Does Paperhound connect directly to my accounting system?
Yes, if you allow it. Every system Paperhound supports offers an API, and Paperhound connects to it once you give access. If you would rather not, Paperhound and you exchange the vendor list and the finished W-9s by spreadsheet instead. The result is the same either way. You choose how much access to give.
Which accounting systems do you work with?
QuickBooks Online, Xero, NetSuite, Sage Intacct, Oracle Fusion, Zoho and Workday.
When should we start?
W-9s are easiest to collect before January. Starting in the fall leaves time for follow-ups and for fixing mismatches.
Is there a minimum number of vendors?
No. Paperhound works with any vendor volume, from a handful of vendors to thousands.
Does Paperhound file 1099s?
Paperhound collects and verifies W-9s. It does not file 1099s.
Get your W‑9s off your plate.
Get in touch and Paperhound will walk you through getting started.
Get in touch