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Financial literacy
10 min

How to request a W-9 from your vendor

Learn when and how to request a W-9 from vendors, why it matters for 1099 filing, and how to avoid last minute follow ups.

Sergey Bukrinski Head of Content
Published at

Somewhere in your inbox right now sits an unanswered W-9 request. You sent it three months ago to a contractor who finished their project, collected payment, and has since moved on to other things. Now tax season is approaching and you need their information for 1099 filing.

We’ve all been there, and like most problems—this is much easier to prevent than to solve. The businesses that handle W-9 collection smoothly have figured out one simple thing: they ask for the form before cutting that first check, rather than trying to track people down months later.

Key Takeaways

  • Request W-9s before sending the first payment to avoid chasing vendors months later at tax time.
  • W-9 forms collect taxpayer info for 1099 filing and should be stored securely—not sent to the IRS.
  • Manual email requests work for small vendor lists, but they require careful tracking and consistent follow-ups.
  • Automated tools like Melio simplify W-9 collection with one-click requests, reminders, and secure storage.
  • Give vendors about two weeks to respond, with at least one follow-up if needed.
  • Incomplete or outdated W-9s can delay 1099 filing and create compliance risks.
  • Centralize and review W-9s regularly to ensure vendor information stays accurate as businesses change.

What is a W-9 Form?

A W-9 is an IRS document businesses use to collect taxpayer identification numbers from contractors and freelancers. You need this information to prepare your 1099s at tax time, which reports payments to non-employees.

Here’s something that confuses people: these forms never go to the IRS. They live in your files, waiting until you need to prepare 1099s for anyone you’ve paid $600 or more during the year.

It’s always a good idea to collect these forms upfront, because six months from now, that contractor has moved on. They’ve changed email addresses, maybe switched phones. Your request for tax information is competing with everything else in their inbox, and it’s probably not at the top of their list.

Why Do You Need W-9 Forms?

W-9 forms give you the taxpayer identification numbers required for IRS reporting. Without them, you can’t properly file Form 1099. The IRS expects accurate income reporting from businesses, and W-9s make that possible. Skip this step and you might face backup withholding requirements or reporting issues down the road.

How to Request a W-9 Form: A Step-by-Step Guide

You can either email vendors directly with a blank W-9 form attached, or use an automated platform like Melio that handles requests, reminders, and storage for you. The email method works fine for small vendor counts. Automation makes more sense when you’re juggling dozens of contractors.

Method 1: Traditional email request

Manual W-9 collection requires consistency. Here’s how to make it work.

Step 1: Download the official W-9 form

Grab a fresh W-9 directly from the IRS website. That version floating around your downloads folder from 2019? Tax forms get updated, and using an outdated version can create unnecessary headaches when it’s time to file.

Step 2: Compose a professional request email

Your message should explain what you need, why you need it, and when. Give vendors at least a week to respond. Attach the blank W-9 and remind them to return it through a secure method, since tax ID numbers shouldn’t travel through regular unencrypted email.

Step 3: Send to your bendor

After sending requests, you need a way to know who responded and who didn’t. A spreadsheet works well for this. Note the date you sent each request, when you expect a response, and check off completions as they come in.

Step 4: Track pending requests

This is where manual methods can start to fall apart. Whatever tracking system you choose, consistency matters. If you start with a meticulous spreadsheet in October but abandon it by mid-November because the upkeep gets tedious, you’re back to square one. The key is keeping your system simple enough that you’ll actually stick with it.

Step 5: Follow up on non-responses

One email rarely gets the job done. Your request gets buried in busy inboxes. If a week passes with no response, send a friendly reminder. After two weeks, it might be worth picking up the phone.

Some vendors genuinely don’t understand why you need this information, and a quick explanation often helps move things along. Others are just disorganized. And occasionally, you’ll encounter someone who has gone completely quiet. After three attempts with no response, you’ll need to decide whether that vendor relationship is worth the compliance trouble.

Step 6: Store completed forms securely

These documents contain Social Security numbers and EINs, so security matters. That shared drive everyone in your office can access won’t cut it. Password-protect digital files at minimum, and keep physical copies in locked storage. You’ll want to hold onto these records for at least four years after filing related tax returns.

Method 2: Using Melio’s automated W-9 request system

Melio builds W-9 collection directly into your payment workflow, which takes a lot of the manual work off your plate.

Step 1: Requesting a W-9 from a new vendor

When you add a vendor in Melio, the platform prompts you to request their W-9 before processing that first payment. One click sends a professional email with a secure link. The vendor fills out the form online, and their information gets stored automatically.

Step 2: Requesting a W-9 from an existing vendor

If you’re already working with vendors but don’t have their W-9 forms, you can pull up your vendor list, select everyone missing tax documentation, and send requests in just a few clicks.

Step 3: Requesting W-9s from multiple vendors simultaneously

Need W-9s from fifty contractors? Instead of copying and pasting the same email fifty times, you can select all vendors missing forms and send everything at once.

Step 4: Tracking W-9 status in Melio

Your dashboard displays status for every vendor. Green means complete, yellow means pending, and red means overdue. It’s easy to see at a glance where things stand.

Step 5: Uploading existing W-9 forms

If you collected W-9s through email before switching to Melio, you can upload them directly to vendor profiles. That way, everything lives in one searchable location.

How long should I give vendors to complete a W-9?

Two weeks is reasonable. Filling out a W-9 form only takes a few minutes, but people need time to notice the request and dig up their tax information. A two-week window gives you room for a follow-up without putting too much pressure on anyone.

Can I request a W-9 after I’ve already paid a vendor?

You can, but you’re taking a risk. Without a W-9 form, you’re missing information required for 1099 filing. If the vendor ignores your requests, you might run into backup withholding requirements. It’s a situation worth avoiding if you can.

How automation can speed up W-9 form requests

Eliminate manual tracking and follow-up

Your team no longer needs to maintain spreadsheets or try to remember who needs a reminder. Set your reminder schedule once, and the platform takes care of ongoing communication from there.

One-click bulk requests

When dozens of vendors need W-9s, sending individual emails gets old fast. A single action handles personalized messages and tracking for every vendor at the same time.

Vendors complete forms online

Your contractors click a link, fill out a form on their phone, and finish in about two minutes. No printing, no scanning. The easier you make this process for them, the faster they tend to respond.

Seamless integration with 1099 filing

The best systems connect W-9 collection directly to 1099 preparation. Taxpayer identification numbers flow automatically from one form to the other, and names match up without anyone retyping anything. No manual data entry means fewer typos and fewer IRS notices about incorrect information.

Common mistakes to avoid when requesting a W-9 form

Waiting until late in the year to request forms: Your vendors have their own busy seasons too. Starting this process in November almost guarantees delays.

Not following up on requests: A single request usually isn’t enough. People are busy, and emails get buried.

Accepting incomplete forms: A W-9 missing a signature or taxpayer ID can’t be used. It’s worth checking forms when they arrive rather than discovering problems when you’re trying to file 1099s.

Storing forms insecurely: Shared drives with broad access and unencrypted email attachments don’t offer enough protection for sensitive tax information.

Using outdated forms: The IRS updates forms periodically, so it’s always a good idea to download the current version.

Not requesting updated forms when vendors change business structure: If your vendor incorporated since you last collected their information, their new EIN needs to replace the old Social Security number on file.

Illustration titled “6 common mistakes to avoid when requesting a W-9 form,” showing icons for waiting too long, not following up, accepting incomplete forms, storing forms insecurely, using outdated forms, and using outdated vendor info.

Best practices for requesting W-9 forms from vendors

Make W-9 collection part of vendor onboarding

Build W-9 requests into your process for bringing on new contractors. Getting tax documentation before the contract is signed, and definitely before any payment goes out, saves you from chasing forms later. Adding two minutes to onboarding is a lot easier than spending weeks tracking people down.

Set clear deadlines

A reminder like “Please send your W-9 soon” is easy to ignore because it doesn’t tell people what soon actually means. Instead, give them a real date and a real reason. Something like “We need your completed W-9 by November 30 so we can process your payment” tends to get better results.

Use automated reminders

Whether you’re sending emails manually or using a platform, a predictable reminder schedule helps. An initial request, a one-week follow-up, and a two-week follow-up is a reasonable cadence that keeps things moving without being annoying.

Keep all W-9s in one centralized location

Pick one secure location for all your forms and make sure everyone who needs access knows exactly where to look. It sounds basic, but it prevents a lot of confusion.

Review and update W-9s annually

Businesses change over time. Your vendors might switch entity types, relocate, or rename themselves. An annual review in October gives you time to catch updates before they cause 1099 problems.

Provide clear instructions

Not everyone knows how to fill out a W-9 correctly, and that’s okay. Include a quick note about which name to use, where to find their EIN, and why you’re asking. A little clarity upfront prevents a lot of back-and-forth later.

Do I need to request a new W-9 every year?

Only if the vendor’s information has changed. A W-9 form stays valid indefinitely as long as the name, address, and tax classification remain the same.

Simplify W-9 requests with Melio

W-9 collection doesn’t have to eat up your time every year. Manual methods work for some businesses, but platforms like Melio turn vendor tax compliance into something that happens alongside your regular payment processing.

Requests go out as part of your workflow. Completed forms get stored securely. Electronic signatures speed things up. And your dashboard shows exactly where every vendor stands.

The system works whether you have five vendors or fifty. Curious whether Melio might be a good fit for your 1099 contractor management? The mobile app and desktop platform both handle bill payments and tax compliance together, so paperwork doesn’t have to take over your schedule.

*This blog post is intended for informational purposes only and is not intended as financial advice.
**Melio does not provide legal, tax or accounting advice, and you should consult with a professional advisor before making any financial decisions.