How Do I Use the IRS TIN Matching Service? Complete Guide to Taxpayer Identification Number Verification

Introduction: Why IRS TIN Matching Matters for Your Business

Every year, businesses face significant penalties for filing information returns with incorrect taxpayer identification numbers. The question how do I use the IRS TIN matching service is increasingly important as the IRS intensifies enforcement of reporting accuracy. Understanding and utilizing the IRS TIN matching program can save your business thousands of dollars in penalties while ensuring compliance with federal tax requirements.

The IRS TIN Matching Service is a free, online program that allows authorized payers to verify the accuracy of name and Taxpayer Identification Number (TIN) combinations before filing information returns such as Form 1099. When you verify TINs through this service, you can identify and correct discrepancies before submitting your returns to the IRS, avoiding the cascade of penalties and administrative headaches that come with B-notices and backup withholding requirements.

Consider this: the penalty for filing an information return with an incorrect TIN can be as high as $330 per form for 2025 filings, with even higher penalties for intentional disregard. For a business filing hundreds or thousands of 1099s, unverified TINs represent a significant financial risk. The IRS TIN matching service provides a straightforward way to mitigate this risk at no cost.

In this comprehensive guide, you will learn:

  • What the IRS TIN Matching Service is and how it works
  • How to register for IRS TIN Matching and the requirements for access
  • Step-by-step instructions for online TIN verification using interactive matching
  • How to use bulk TIN matching for high-volume verification
  • Understanding TIN matching results and what to do with mismatches
  • Best practices for integrating TIN matching into your business workflows
  • Limitations of the IRS TIN Matching Service and alternative approaches
  • How to handle B-notices when you receive them from the IRS

What Is the IRS TIN Matching Service?

Overview of the TIN Matching Program

The IRS TIN Matching Service is a free, internet-based program offered by the Internal Revenue Service that allows authorized payers to verify that the TIN furnished by a payee matches the name and TIN on file with the IRS. The service is available through the IRS e-Services portal and can be accessed after completing a registration process.

The TIN Matching Service is specifically designed for payers who file information returns such as:

  • Form 1099-NEC: Non-employee compensation paid to independent contractors
  • Form 1099-MISC: Miscellaneous payments including rents, royalties, and other income
  • Form 1099-INT: Interest income paid to account holders
  • Form 1099-DIV: Dividend payments to shareholders
  • Form 1099-B: Proceeds from broker and barter exchange transactions
  • Form 1099-K: Payment card and third-party network transactions
  • Other information returns: Various other 1099 forms and information returns

When you submit a TIN matching request, the IRS compares the name and TIN combination you provide against Social Security Administration (SSA) records for Social Security Numbers (SSNs) and IRS records for Employer Identification Numbers (EINs). The system then returns a result indicating whether the combination matches or does not match IRS records.

Why TIN Matching Is Critical for Compliance

Using the IRS TIN matching service before filing information returns provides several important benefits:

Penalty Avoidance: The most immediate benefit is avoiding penalties for incorrect TINs. The IRS imposes penalties under Section 6721 and 6722 of the Internal Revenue Code for filing returns with incorrect information. For 2025, these penalties are:

If Filed Within Penalty Per Form Small Business Cap
30 days of due date $60 $232,500
After 30 days but by August 1 $130 $664,500
After August 1 or not at all $330 $1,329,000
Intentional disregard $660 or more No cap

Avoiding B-Notices: When the IRS identifies a name/TIN mismatch on a filed information return, they issue a B-notice (CP2100 or CP2100A) to the payer. These notices require you to solicit a corrected TIN from the payee and, in some cases, begin backup withholding at 24%. Processing B-notices is administratively burdensome and creates compliance obligations.

Demonstrating Due Diligence: If you use TIN matching and still end up with an incorrect TIN (because the payee provided false information, for example), you have documentation showing you exercised reasonable care. This can help avoid penalties or support a reasonable cause exception if penalties are assessed.

Cleaner Data Quality: Verifying TINs as part of your vendor onboarding or annual review process improves overall data quality in your systems. This leads to fewer rejected e-filings, fewer corrections, and smoother year-end processing.

Eligibility for IRS TIN Matching

Not everyone can access the IRS TIN matching service. The program is available to:

  • Payers of reportable payments: Businesses that make payments requiring information return filing (1099s, etc.)
  • Authorized agents: Third parties authorized by payers to perform TIN matching on their behalf, such as payroll services, accounting firms, or 1099 filing services
  • Financial institutions: Banks, credit unions, brokerage firms, and other financial institutions that file information returns

The key requirement is that you must be filing (or planning to file) information returns that report payments to the individuals or entities whose TINs you are verifying. The IRS TIN Matching Service is not a general-purpose identity verification tool. It is specifically for pre-filing verification of information return data.

How to Register for IRS TIN Matching

Step 1: Create an IRS e-Services Account

Before you can use the IRS TIN matching service, you must have an IRS e-Services account. The e-Services portal is the IRS's online platform for authorized users to access various tax-related services. Here is how to register:

Visit the IRS e-Services Registration Page:

Go to www.irs.gov/e-services and click on the option to register for e-Services. You will need to create an account with ID.me, the IRS's identity verification partner.

Complete Identity Verification:

The IRS requires rigorous identity verification to protect taxpayer data. You will need to provide:

  • Your Social Security Number or Individual Taxpayer Identification Number (ITIN)
  • A valid government-issued photo ID (driver's license, state ID, or passport)
  • A selfie for facial recognition comparison
  • Your current address and phone number

The identity verification process may take several days if additional review is required. Once your identity is verified, you will have access to the e-Services portal.

Step 2: Apply for TIN Matching Access

After your e-Services account is active, you must specifically request access to the TIN Matching application:

Log into e-Services:

Access the e-Services portal at www.irs.gov/e-services and log in with your credentials.

Navigate to TIN Matching:

Within the e-Services menu, look for the TIN Matching application option. Select it to begin the application process.

Complete the TIN Matching Application:

You will need to provide:

  • Your business name and Employer Identification Number (EIN)
  • Your role and authority to request TIN matching on behalf of the business
  • Acknowledgment of the terms and conditions for using the service
  • Certification that you will use TIN matching only for its intended purpose (verifying payee information for information returns)

Application Processing:

The IRS typically processes TIN Matching applications within a few business days. Once approved, you will receive confirmation and can begin using the service immediately.

Step 3: Authorize Additional Users (Optional)

If multiple people in your organization need to perform IRS TIN matching, you can authorize additional users under your business account:

  • Each user must have their own e-Services account with completed identity verification
  • The primary account holder can add authorized users through the e-Services account management features
  • Authorized users will have access to perform TIN matching for the registered business

For service providers performing TIN matching for multiple clients, you may need to register separately for each client's EIN or obtain proper authorization to act as their agent.

Using Interactive TIN Matching (Online Verification)

What Is Interactive TIN Matching?

Interactive TIN matching is the real-time, online verification option within the IRS TIN matching service. It allows you to enter up to 25 name/TIN combinations at a time and receive immediate results. This method is ideal for:

  • Verifying new vendors or contractors during onboarding
  • Spot-checking TINs when you suspect a problem
  • Small businesses with limited contractor populations
  • Quick verification before making a significant payment

Step-by-Step Guide to Interactive TIN Matching

Step 1: Access the TIN Matching Application

Log into your IRS e-Services account and navigate to the TIN Matching application. Select the Interactive TIN Matching option.

Step 2: Enter Name/TIN Combinations

For each payee you want to verify, enter:

  • Payee Name: Enter the name exactly as it appears on the W-9 provided by the payee. For individuals, use the format "First Last" or "Last, First" as instructed. For businesses, use the legal business name.
  • TIN: Enter the 9-digit TIN (SSN or EIN) without dashes or spaces.
  • TIN Type: Indicate whether the TIN is an SSN (for individuals) or EIN (for businesses).

You can enter up to 25 combinations per session.

Step 3: Submit the Request

After entering all combinations, submit the request. The system will process your entries in real-time.

Step 4: Review Results

For each name/TIN combination, you will receive one of the following result codes:

Code Meaning Action Required
0 TIN and Name combination matches IRS records None - proceed with filing
1 TIN is missing or not 9 digits Correct the TIN format and resubmit
2 TIN entered is not currently issued Verify TIN with payee; may be a typo
3 TIN and Name combination does not match Solicit corrected W-9 from payee
4 Invalid TIN Matching request Check formatting and resubmit
5 Duplicate TIN Matching request Already submitted; check previous results
6 TIN and Name match for tax year filing None - proceed with filing
7 TIN and Name match for current year only Verify for prior years if applicable
8 TIN found but name not provided Provide name and resubmit

Step 5: Document Results

Save or print the TIN matching results for your records. This documentation demonstrates due diligence if questions arise later about TIN accuracy.

Tips for Successful Interactive TIN Matching

Name Formatting Matters: The IRS compares the name you enter against SSA or IRS records. Use the exact legal name as it appears on the payee's Social Security card (for SSNs) or IRS documentation (for EINs). Common issues include:

  • Using a nickname instead of legal first name
  • Including suffixes (Jr., Sr., III) when they are not on official records, or vice versa
  • Misspelling names or transposing letters
  • Using a former name when the payee has legally changed their name

Business Name Considerations: For EINs, use the legal business name exactly as registered with the IRS. This may differ from a "doing business as" (DBA) name. Ask payees for their legal name as shown on their IRS correspondence.

TIN Format: Enter TINs as 9 continuous digits without dashes. For SSNs, do not use XXX-XX-XXXX format; use XXXXXXXXX.

Using Bulk TIN Matching for High-Volume Verification

What Is Bulk TIN Matching?

Bulk TIN matching is the high-volume option within the IRS TIN matching service. Instead of entering records one at a time, you upload a file containing up to 100,000 name/TIN combinations per submission. The IRS processes the file and returns results, typically within 24-48 hours.

Bulk TIN matching is ideal for:

  • Large employers with many contractors or vendors
  • Financial institutions filing thousands of 1099s
  • Payroll service providers managing multiple client companies
  • Annual pre-filing verification of entire payee databases
  • Businesses wanting to verify TINs efficiently at scale

Preparing Your Bulk TIN Matching File

File Format Requirements:

The IRS requires bulk TIN matching files to follow a specific format. Each record in the file must contain:

  • TIN (9 digits): The Social Security Number or Employer Identification Number
  • TIN Type Indicator (1 digit): "1" for SSN/ITIN, "2" for EIN
  • Name Control (4 characters): First four characters of the last name (for individuals) or business name (for entities)
  • Payee Name (up to 40 characters): Full legal name of the payee

The file should be a plain text file with one record per line. Records must be formatted according to IRS specifications, which are detailed in the TIN Matching application documentation.

Creating the File:

Most businesses export their payee data from accounting or payroll software and then format it according to IRS requirements. Many 1099 filing software solutions include built-in bulk TIN file generation that automatically creates properly formatted files.

Example Record Format:

123456789 1 SMIT John Smith

In this example: 123456789 is the SSN, "1" indicates SSN type, "SMIT" is the name control, and "John Smith" is the payee name.

Submitting Bulk TIN Matching Requests

Step 1: Upload Your File

Log into e-Services and access the TIN Matching application. Select the Bulk TIN Matching option and upload your prepared file.

Step 2: Review File Acknowledgment

After uploading, the system will provide an acknowledgment indicating the file was received and the number of records detected. Review this to ensure all records were included.

Step 3: Await Processing

Bulk files are processed in batches. Typical turnaround time is 24-48 hours, though it may be longer during peak filing seasons (January through March).

Step 4: Download Results

When processing is complete, you will receive notification (via email if you provided one) that results are available. Log back into e-Services and download the results file.

Step 5: Analyze Results

The results file contains the same result codes as interactive matching (0-8) for each record submitted. Import the results into a spreadsheet or database to identify mismatches requiring follow-up.

Best Practices for Bulk TIN Matching

Timing: Submit bulk TIN matching requests well before filing deadlines. This gives you time to solicit corrected W-9s for any mismatches before you need to file. Many businesses run bulk matching in October or November for January 1099 filings.

Segmentation: For very large databases, consider segmenting your file into multiple submissions. This makes it easier to manage results and identify patterns in mismatches.

Recurring Verification: Verify TINs annually for recurring payees, even if they matched previously. Name changes, corrections to SSA records, or data entry changes in your systems can introduce mismatches.

Integration: Use software that integrates bulk TIN matching into your workflow. This reduces manual file creation and results processing.

Understanding and Acting on TIN Matching Results

What To Do When TINs Match (Code 0)

When you receive a Code 0 result, the name and TIN combination matches IRS records. This is the best outcome. You can proceed confidently with including this payee on information returns. Document the match date for your records.

However, understand that a match does not guarantee the TIN belongs to your payee. It only confirms that the name and TIN are a valid combination in IRS records. A payee could theoretically provide someone else's valid name/TIN combination. Additional due diligence (like matching the TIN to the W-9 you have on file and verifying the payee's identity) remains important.

What To Do When TINs Do Not Match (Code 3)

A Code 3 result is the most common mismatch scenario. It means the name and TIN combination you submitted does not match what the IRS has on file. This could be due to:

  • Name discrepancy: The name in your records differs from the name on file with SSA or IRS
  • TIN error: Incorrect TIN was recorded in your system (transposed digits, typos)
  • Payee error: The payee provided an incorrect TIN on their W-9
  • SSA records not updated: The payee legally changed their name but has not updated SSA records

Steps to Resolve a Code 3 Mismatch:

  1. Contact the payee: Explain that you received a TIN mismatch and need them to verify or update their information
  2. Request a new W-9: Have the payee complete a fresh Form W-9 with their correct legal name and TIN
  3. Re-verify after receiving the new W-9: Run TIN matching again to confirm the new information matches
  4. Document your efforts: Keep records of your communications and attempts to obtain correct information
  5. Consider backup withholding: If the payee cannot or will not provide correct information, you may need to begin backup withholding at 24%

Handling Other Result Codes

Code 1 (TIN Missing or Wrong Length): This is a data quality issue. Check your records for the correct 9-digit TIN. The TIN field may have been truncated or have extra characters.

Code 2 (TIN Not Issued): The TIN you submitted is not a valid, issued number. Possibilities include:

  • The payee made up a number
  • The TIN was transposed or contains errors
  • For SSNs, the number may belong to a deceased individual whose number was retired

Request a corrected W-9 and, if concerns about fraud arise, consider enhanced due diligence.

Code 4 (Invalid Request): Your submission had formatting errors. Review the TIN matching format requirements and resubmit.

Code 5 (Duplicate Request): You already submitted this name/TIN combination in a recent request. Check your previous results rather than resubmitting.

Documenting TIN Matching for Due Diligence

Maintaining records of your IRS TIN matching activities is essential. Good documentation includes:

  • Date of TIN matching request
  • Result code received for each payee
  • Follow-up actions taken for mismatches
  • Copies of corrected W-9s received
  • Re-verification results after corrections

This documentation demonstrates that you exercised due diligence in verifying taxpayer information. If you later receive a B-notice or penalty assessment, this record supports a reasonable cause defense.

IRS TIN Matching Limitations and Considerations

What TIN Matching Cannot Tell You

While the IRS TIN matching service is valuable, it has limitations you should understand:

It Does Not Verify Identity: TIN matching confirms that a name and TIN are associated in IRS/SSA records. It does not verify that the person providing the information is actually that taxpayer. A fraudster could provide a stolen name and TIN that would match.

It Does Not Check for Deceased Individuals: If a TIN belongs to a deceased person, it may still return a match depending on how recently the death was reported and processed.

It Does Not Provide Tax Status: TIN matching does not tell you whether a payee is exempt from backup withholding, whether their TIN is on the First B-Notice list, or any other tax status information.

It Has Processing Limitations: During peak seasons, bulk processing may be delayed. Interactive matching is limited to 25 records at a time. The service may experience occasional outages.

TIN Matching Timing Considerations

The IRS TIN matching service reflects data as of a specific point in time. Consider these timing factors:

  • New TINs: Recently issued SSNs or EINs may not immediately appear in the TIN matching database. New employers may need to wait a few weeks after receiving their EIN before it can be verified.
  • Name Changes: If a payee recently changed their name with SSA (due to marriage, divorce, or legal name change), there may be a lag before TIN matching reflects the new name.
  • Record Updates: The IRS periodically updates the TIN matching database. An exact update schedule is not published.

When TIN Matching Is Not Available

The IRS TIN Matching Service is not available for all situations:

  • Foreign Payees: TIN matching works only with SSNs, ITINs, and EINs. It cannot verify foreign tax identification numbers. For foreign payees, you rely on W-8 forms rather than TIN matching.
  • Certain Entity Types: Some specialized entity types may not be easily verifiable through standard TIN matching.
  • Employee Verification: TIN matching is designed for information return payees, not employee verification. For employees, the Social Security Number Verification Service (SSNVS) is the appropriate tool.

Integrating IRS TIN Matching Into Your Business Workflow

TIN Verification at Vendor Onboarding

The most proactive approach to IRS TIN matching is to verify TINs when you first engage a contractor or vendor, before making any payments. This workflow looks like:

  1. Collect W-9: When onboarding a new payee, collect their completed W-9 form (paper or electronic)
  2. Enter Data: Enter the name and TIN into your accounting or vendor management system
  3. Verify Immediately: Run TIN matching before approving the vendor for payment
  4. Resolve Before Payment: If there is a mismatch, resolve it before making the first payment
  5. Document Match: Record the TIN matching result and date in the vendor record

Verifying upfront prevents the scenario where you discover a TIN mismatch at year-end when the payee may be difficult to reach or has already been paid.

Annual Pre-Filing Verification

For established vendor databases, run bulk TIN matching annually before preparing 1099s:

  1. Export Payee Data: In October or November, export all payees who will receive 1099s for the year
  2. Submit Bulk TIN Matching: Upload the file to the IRS TIN matching service
  3. Review Results: Identify any new mismatches (payees who matched last year but not this year)
  4. Remediate: Contact mismatched payees to obtain corrected W-9s
  5. Re-Verify: Run TIN matching again for corrected records
  6. File with Confidence: Proceed with 1099 filing knowing TINs have been verified

Responding to B-Notices

If you file information returns without TIN matching and the IRS identifies a mismatch, you will receive a B-notice (CP2100 or CP2100A). This notice:

  • Lists the payees whose name/TIN combinations did not match
  • Requires you to solicit a corrected W-9 from each listed payee
  • May require you to begin backup withholding if correct information is not obtained

Responding to a First B-Notice:

  1. Send a B-notice solicitation letter to each affected payee
  2. Request they complete a new W-9 with correct information
  3. They have 30 days to respond
  4. If they respond with corrected information, update your records and verify via TIN matching
  5. If they do not respond, begin backup withholding on future payments

Responding to a Second B-Notice:

If you receive a second B-notice for the same payee within three years, additional requirements apply. The payee must verify their TIN with the IRS or SSA directly, and you must impose backup withholding until verification is complete.

Using IRS TIN matching proactively minimizes B-notices by catching mismatches before you file.

Frequently Asked Questions About IRS TIN Matching

Is the IRS TIN Matching Service free to use?

Yes, the IRS TIN matching service is completely free. The IRS provides it as a compliance tool to help payers file accurate information returns. There are no fees for registration, interactive matching, or bulk file processing. The only investment required is the time to register, prepare your data, and process results. Third-party services that include TIN matching as part of their offerings may charge for their software, but the underlying IRS verification is free.

How long does it take to get approved for TIN Matching?

The approval timeline for IRS TIN matching access varies. Creating an e-Services account with ID.me identity verification typically takes 15-30 minutes if everything goes smoothly, though some users experience delays if additional identity verification is required. Once your e-Services account is active, the TIN Matching application itself is usually processed within a few business days. Overall, plan for one to two weeks from starting registration to having full TIN matching access, though it can be faster.

Can I use TIN Matching for employee W-2 verification?

No, the IRS TIN matching service is specifically for information returns (1099s, etc.), not for verifying employee Social Security Numbers for W-2 purposes. For employee SSN verification, employers should use the Social Security Administration's Social Security Number Verification Service (SSNVS). This is a separate program with different registration requirements. SSNVS is designed for employment verification purposes and can handle both individual and batch SSN verification for employees.

What happens if a TIN matches but the payee provided false information?

If a payee provides a valid name/TIN combination that belongs to someone else (identity theft or fraud), TIN matching will return a match because the combination exists in IRS records. TIN matching does not verify that the person providing the information is actually that taxpayer. If you later discover fraud, document when and how you verified the TIN. Your TIN matching records demonstrate due diligence, which can help establish reasonable cause if penalties are assessed. Report suspected identity theft to the IRS.

How often should I verify TINs for recurring vendors?

Best practice is to verify TINs annually for all payees who will receive information returns. Even if a vendor's TIN matched last year, circumstances can change. Names may be updated in SSA records, typos may be introduced during data migrations, or the vendor may have provided updated information that was entered incorrectly. Annual verification before filing catches these issues. Some businesses also verify at vendor onboarding and whenever a vendor submits an updated W-9.

Can a third-party service perform TIN matching on my behalf?

Yes, you can authorize a third party (such as a payroll service, accounting firm, or 1099 filing service) to perform IRS TIN matching on your behalf. The third party must be registered with e-Services and have TIN matching access. Some third-party services have their own TIN matching registrations and include verification as part of their offerings. Others may use your credentials to access TIN matching for your payees. Ensure any third party handling your payee TINs has appropriate security measures in place.

What is the difference between TIN Matching and TIN Verification?

These terms are often used interchangeably, but technically, the IRS calls its free service "TIN Matching." This service confirms whether a name/TIN combination matches IRS records. Some third-party services offer "TIN Verification" products that may include additional features beyond basic matching, such as identity verification, deceased status checking, or monitoring. The core IRS TIN matching function simply confirms the name/TIN match status.

Why did my TIN match fail even though the payee provided a correct W-9?

Common reasons for unexpected mismatches include:

  • The name on the W-9 differs from the name on file with SSA (nicknames, name changes, suffixes)
  • Data entry errors when you entered the W-9 information into your system
  • The W-9 itself contains errors made by the payee
  • For business EINs, using a DBA name instead of the legal name registered with the IRS

Request the payee verify their legal name exactly as it appears on their Social Security card (for SSN) or IRS correspondence (for EIN), and compare carefully to your records.

How do I handle a payee who refuses to provide a corrected W-9?

If a payee refuses to provide a corrected W-9 after you identify a TIN mismatch, you have limited options. Document your requests for corrected information. If you cannot obtain a matching TIN, you may need to file the 1099 with the information you have (understanding penalties may apply for incorrect TINs) and begin backup withholding at 24% on future payments. See our guide on handling contractors who won't provide W-9s for more detailed guidance.

Does TIN Matching work for ITINs (Individual Taxpayer Identification Numbers)?

Yes, the IRS TIN matching service can verify ITINs. ITINs are issued by the IRS to individuals who need a taxpayer identification number but are not eligible for a Social Security Number (such as non-resident aliens). When entering an ITIN for TIN matching, use the SSN/ITIN indicator code. The matching process works the same as for SSNs.

How BoomTax Simplifies TIN Verification and 1099 Filing

Integrated TIN Matching Solutions

BoomTax understands that IRS TIN matching is just one step in your overall 1099 compliance workflow. Our platform offers integrated TIN verification that streamlines the process:

  • TIN Verification at Upload: When you upload your payee data to BoomTax, you can run TIN verification on all records. Mismatches are flagged before you proceed to filing.
  • Pre-Filing Verification: Before submitting your 1099s to the IRS, BoomTax validates your data against 500+ rules, including TIN format validation. Catch issues before they become penalties.
  • TINCorrect Integration: BoomTax works with TINCorrect, our companion TIN verification product, for businesses that want enhanced TIN verification capabilities.

Comprehensive 1099 Filing Platform

TIN verification is just the beginning. BoomTax provides a complete 1099 filing solution that includes:

  • All 1099 Form Types: File 1099-NEC, 1099-MISC, 1099-INT, 1099-DIV, 1099-B, 1099-R, and more
  • Bulk Upload: Import thousands of records from Excel, CSV, QuickBooks, and other accounting systems
  • Real-Time Validation: Every form is checked against IRS rules before filing
  • One-Click E-Filing: Submit directly to the IRS without obtaining your own transmitter credentials
  • Recipient Delivery: Print and mail recipient copies or use electronic delivery
  • State Filing: Automatic filing to states participating in the Combined Federal/State program
  • Corrections: File corrected 1099s easily when needed, with unlimited corrections at no extra charge

Multi-Company Support for Service Providers

For payroll bureaus, accounting firms, and other service providers managing 1099 filing for multiple clients:

  • Unlimited Companies: Manage all your clients under one BoomTax account
  • Efficient TIN Verification: Verify TINs across all clients from a single interface
  • Centralized Filing: File 1099s for all clients with streamlined workflows
  • Client Reporting: Track filing status and maintain records for each client

Get Started with BoomTax

Stop worrying about TIN mismatches and filing penalties. Create your BoomTax account today and experience a streamlined approach to TIN verification and 1099 filing. With BoomTax, you can verify TINs, prepare forms, e-file to the IRS, and deliver recipient copies - all from one platform.

Conclusion: Make IRS TIN Matching Part of Your Compliance Strategy

The question how do I use the IRS TIN matching service has a straightforward answer: register for e-Services, apply for TIN matching access, and verify your payee name/TIN combinations before filing information returns. The process is free, the benefits are substantial, and the risks of not verifying are significant.

Key takeaways for successful IRS TIN matching:

  • Register early: Do not wait until January to register. Complete your e-Services registration and TIN matching application well before filing season.
  • Verify at onboarding: Run TIN matching when you first engage a new vendor or contractor, before making payments.
  • Verify annually: Run bulk TIN matching each fall to catch any new mismatches before 1099 filing.
  • Act on mismatches: When you receive a Code 3 or other mismatch, follow up immediately to obtain corrected information.
  • Document everything: Keep records of your TIN matching activities to demonstrate due diligence.
  • Use integrated solutions: Tools like BoomTax that incorporate TIN verification into the filing workflow make compliance easier.

By making IRS TIN matching a standard part of your business processes, you protect your organization from preventable penalties, reduce administrative burden from B-notices, and ensure your information return filings are as accurate as possible.

For more information on 1099 compliance, explore our guides on verifying contractor TINs, collecting W-9s from contractors, avoiding 1099 penalties, and 1099 reporting requirements.

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