TIN Verification, B-Notices, and Backup Withholding: Best Practices

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Issuers of 1099 Forms can significantly reduce risk and streamline year-end reporting by implementing key best practices and procedural safeguards. This informative webinar will guide participants through effective strategies to ensure accuracy in vendor names and Taxpayer Identification Numbers (TINs), crucial components of 1099 compliance. While recent changes to de minimis error rules allow for some leniency in dollar amount discrepancies, inaccuracies in payee names or TINs are never considered minor and can lead to costly IRS penalties.

This session will provide a comprehensive overview of essential practices such as TIN solicitation and verification, handling of IRS notices, proper issuance of B-Notices, and management of backup withholding requirements. Attendees will gain a clear understanding of how to analyze Form W-9, respond to IRS mismatches, and implement internal controls to prevent reporting errors. Additionally, participants will learn how to navigate the IRS TIN matching system, from registration to submission and follow-up procedures for mismatched records.

Topics Covered:
  • Reminders and what’s new
  • IRS matching process
  • Penalties
  • Establishing reasonable cause
  • Solicitations
  • TIN verification
  • Notices
  • Backup withholding
Your Benefits For Attending:
  • Understand the latest updates and reminders affecting 1099 reporting.
  • Learn how to effectively use the IRS matching process to ensure compliance.
  • Identify and avoid common errors that can lead to penalties.
  • Establish procedures to demonstrate reasonable cause and mitigate risk.
  • Gain insights into proper TIN solicitation and verification processes.
  • Learn how to manage IRS notices and backup withholding requirements.

This webinar is a must-attend for professionals seeking to enhance their compliance protocols and reduce their organization’s exposure to penalties. You'll walk away with actionable knowledge to safeguard your 1099 processes.

Who Should Attend:

This session is ideal for accounting professionals, compliance officers, tax preparers, and anyone involved in year-end 1099 processing and vendor management.

Level: Intermediate
Format: Live webcast
Instructional Method: Group: Internet-based
NASBA Field of Study: Taxes (2 hours)
Program Prerequisites: None
Advance Preparation: None
  1. Introduction
  2. Form MISC And Form-NEC Example 00:01:45
  3. Tax Code Requirements (IRC 3406) 00:06:30
  4. What Payments Are Subject To Backup Withholding? 00:09:43
  5. What Payments Are Subject To Backup Withholding? Cont’d 00:10:32
  6. What is a Taxpayer Identification Number (TIN)? 00:13:33
  7. What is an Individual Taxpayer Identification Number (ITIN)? 00:14:40
  8. How Do You Obtain Someone’s TIN or ITIN? 00:16:20
  9. Exemptions From Backup Withholding 00:20:00
  10. Exemptions From Backup Withholding Con’d 00:20:40
  11. Exemptions From Backup Withholding Con’d 00:21:09
  12. Foreign Persons 00:22:07
  13. Should I Backup Withhold On A Payee Who is A Nonresident Alien? 00:25:29
  14. How Is Backup Withholding Reported? 00:26:20
  15. What Should I Do If A Payee Refuses or Neglects To Provide A TIN? 00:29:39
  16. What Is A CP2100 Or CP2100A Notice? 00:34:31
  17. Solicitation requirement if CP2100 or CP2100A is Received 00:35:43
  18. What is a “B” Notice? 00:38:13
  19. “B” Notice Requirements 00:40:24
  20. First B-Notice Example 00:42:05
  21. Second B-Notice Example 00: 47:03
  22. What If You Receive A Second CP2100 or CP2100A Notice In The Same Calendar Year As The First Notice? 00:50:40
  23. What Should You Do If A “B” Notice is Returned As “Undeliverable”? 00:52:31
  24. When Do I Send  “B” Notice To A Payee? 00:53:42
  25. If you get a new TIN from a payee during the B Notice process, Do You Need To Correct The Form 1099 Filing That Was Issued? 00:56:02
  26. What If The Payment You Made Was A One-Time Payment And You Don’t Expect To Pay That Person Again? 01:12:41
  27. What Happens If You Don’t Comply With The B-Notice Procedure? 01:13:06
  28. Can The Penalties Be Abated? 01:16:01
  29. What Is The Relationship Between The Requirements To Make An Annual Solicitation and The Requirements To Send A “B” Notice? 01:18:00
  30. What Should I Do If A TIN Was Actually On File But Was Omitted From The Form 1099 or Reported Incorrectly? 01:18:22
  31. 18:22What Should I Do If This Is The First Notification And The Form W-9 is Returned With The Same Incorrect Information? 01:18:44
  32. If I Don’t Do Business Anymore With A Payee, Or If It Was Only A One Time Transaction, What Should I Do With The “B” Notice? 01:19:34
  33. When Should You File A Corrected 1099? 01:20:27
  34. Flowcharting for Incorrect Names/TINs 01:20:56
  35. Flowcharting for Incorrect Names/TINs Con’t’d 01:21:49
  36. Flowcharting for Missing TINs 01:23:58
  37. Flowcharting for Missing TINs Cont’d 01:23:55
  38. TIN Verification 01:24:15
  39. Accessibility 01:25:10
  40. Current TIN Matching Program 01:27:29
  41. Current TIN Matching Program Cont’d 01:28:18
  42. Current TIN Matching Program Cont’d 01:28:52
  43. Do I need To Register Through Secure Access? 01:31:22
  44. Registration 01:31:50
  45. Items Needed For Registration 01:33:05
  46. Items Needed For Registration Cont’d 01:34:40
  47. Verifying Your Identity 01:35:25
  48. Can I Change My Username When I Register Through Secure Access? 01:37:32
  49. Notes 01:38:10
  50. Wrap-Up 01:40:04
  51. Presentation Closing 01:41:30

  • Chuck Borek

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  • Audit  01:03:54
  • Backup Withholding 00:00:08, 00:01:40, 00:06:55, 00:09:45, 00:11:13, 00:20:01, 00:33:55, 01:12:51, 01:27:34
  • B-Notice 00:00:07, 00:01:35, 00:35:51, 00:42:27, 00:52:36, 01:12:51
  • CP2100 00:34:35, 00:50:44, 00:55:47
  • CP2100A 00:34:36, 00:50:44
  • Dividends 00:10:25
  • EIN 0001:20, 00:13:44, 00:19:02
  • Exempt 00:20:07
  • Form 1099-B 00:10:52
  • Form 1099-C 01:00:02
  • Form 1099-DIV 00:10:26
  • Form 1099-INT 00:10:23
  • Form 1099-K  00:10:59
  • Form 1099-MISC 00:10:04
  • Form 1099-NEC 00:10:0
  • Form 1099-OID 00:10:45
  • Form 1099-PATR 00:10:38
  • Form 945 00:26:37
  • Form W-2 00:02:32
  • Form W2-G 00:10:56
  • Form W-9 00:02:06, 00:16:29, 00:22:30, 00:38:31
  • Green Card 00:14:55
  • Gross Proceeds Payment 00:09:59
  • Independent Contractor 00:02:20, 00:10:16, 00:31:23
  • IRC Section 3406(a) 00:06:38
  • IRS Notice 972CG 00:36:23, 01:13:28
  • IRS Secure Access 01:31:28
  • ITIN 00:14:47
  • Liability 00:57:21
  • Limited Liability Company (LLC 01:12:02
  • Nonresident Alien (NRA) 00:14:51, 00:25:37
  • Reasonable Cause 01:16:09
  • Resident Alien 00:14:50
  • TIN 00:00:05, 00:01:03, 00:03:08, 00:13:36,  00:19:01, 00:29:45, 000:33:, 00:55:36, 01:21:40
  • TIN Match Program 01:27:43
  • W-8BEN 00:22:25

Audit: A formal examination of an organization's or individual's accounts or financial situation

B-Notice: A notice from the IRS stating that one or more tax ID numbers were missing from a 1099 or do not match the IRS records.

Backup Withholding: Backup withholding is the tax that is levied on investment income, at an established tax rate, as the investor withdraws it. Backup withholding helps to ensure that government tax-collecting agencies (such as the IRS or Canada Revenue Agency) will be able to receive income taxes owed to them from investors' earnings. (www.investopedia.com)

CP-2100: It is a notice that tells a payer that he or she may be responsible for backup withholding. It is accompanied by a listing of missing, incorrect, and/or not currently issued payee TINs. Largevolume filers will receive a CD or DVD data file CP2100, mid-size filers receive a paper CP2100, andsmall filers receive a paper CP2100A.

CP2100-A: It is a notice that tells a payer that he or she may be responsible for backup withholding. It isaccompanied by a listing of missing, incorrect, and/or not currently issued payee TINs. Largevolume filers will receive a CD or DVD data file CP2100, mid-size filers receive a paper CP2100, andsmall filers receive a paper CP2100A.

EIN: The Employer Identification Number, also known as the Federal Employer Identification Number or the Federal Tax Identification Number, is a unique nine-digit number assigned by the Internal Revenue Service to business entities operating in the United States for the purposes of identification.

Exempt : Exempt employee is a term that refers to a category of employees set out in the Fair Labor Standards Act. They do not receive overtime pay, nor do they qualify for the minimum wage

Form 1095-B: Form 1095-B is used as proof of Minimum Essential Coverage (MEC) when filing your state and/or federal taxes. It should be kept with your other tax information in the event the Internal Revenue Service (IRS) or Franchise Tax Board (FTB) requires you to provide it as proof of your health care coverage.

Form 1099-C: According to the IRS, nearly any debt you owe that is canceled, forgiven or discharged becomes taxable income to you. You'll receive a Form 1099-C, "Cancellation of Debt," from the lender that forgave the debt.

Form 1099-DIV : Form 1099-DIV: Dividends and Distributions is an Internal Revenue Service (IRS) form sent to investors who receive distributions from any type of investment during a calendar year. Investors can receive multiple 1099-DIVs. Each Form 1099-DIV should be reported on an investor's tax filing.

Form 1099-INT: Form 1099-INT is the IRS tax form used to report interest income. The form is issued by all payers of interest income to investors at year end and includes a breakdown of all types of interest income and related expenses. Payers must issue Form 1099-INTs for any party to whom they paid at least $10 of interest during the year.

Form 1099-K: A payment settlement entity (PSE) must file Form 1099-K for payments made in settlement of reportable payment transactions for each calendar year. A PSE makes a payment in settlement of a reportable payment transaction, that is, any payment card or third party network transaction, if the PSE submits the instruction to transfer funds to the account of the participating payee to settle the reportable payment transaction.

Form 1099-MISC: The Form 1099-MISC is an Internal Revenue Service (IRS) tax return document used to report miscellaneous payments made to nonemployee individuals, such as independent contractors, during the calendar year. (www.shrm.org)

Form 1099-NEC: In the context of 1099 tax filing, NEC stands for “Nonemployee Compensation” (the first letters of the three words None, Employee and Compensation). Most tax payers recognize NEC as box 7 on Form 1099-MISC. NEC is used to report income paid to independent-contractors / the-self-employed (referred to as 1099 employees for simplification purposes). So, while employers report income that gets paid to employees on Box 1 (Wages, tips, other compensation) of the W2 form, payers report income that gets paid to none-employees on Box 7 (NEC) of the 1099-MISC form. As an individual, if you received form 1099-MISC instead of Form W-2 then the payer did not consider you an employee and did not withhold income tax or social security and Medicare tax.

Form 1099-OID: Form 1099-OID is a tax form intended to be submitted to the Internal Revenue Service by the holder of debt instruments which were discounted at purchase to report the taxable difference between the instruments' actual value and the discounted purchase price.

Form 1099-PATR: File Form 1099-PATR, Taxable Distributions Received From Cooperatives, for each person to whom the cooperative has paid at least $10 in patronage dividends and other distributions described in section 6044(b), or from whom you withheld any federal income tax under the backup withholding rules regardless of the amount of the payment.

Form 945: IRS Form 945 is titled Annual Return of Withheld Federal Income Tax. Form 945 is used to report withheld federal income tax from nonpayroll payments, including distributions from qualified retirement plans.

Form W-2: Form W-2 is an Internal Revenue Service tax form used in the United States to report wages paid to employees and the taxes withheld from them. Employers must complete a Form W-2 for each employee to whom they pay a salary, wage, or other compensation as part of the employment relationship. - Wikipedia (https://en.wikipedia.org/)

Form W-9: Form W-9 (officially, the "Request for Taxpayer Identification Number and Certification") is used in the United States income tax system by a third party who must file an information return with the Internal Revenue Service (IRS). It requests the name, address, and taxpayer identification information of a taxpayer (in the form of a Social Security Number or Employer Identification Number). - Wikipedia (https://en.m.wikipedia.org/)

Form W2-G: File this form to report gambling winnings and any federal income tax withheld on those winnings. The requirements for reporting and withholding depend on: the type of gambling, the amount of the gambling winnings, and. generally the ratio of the winnings to the wager.

Green Card: A Green Card, also known as a Permanent Resident Card, is an identification card issued by USCIS (.gov) to foreign nationals who have been granted lawful permanent resident status in the United States. It serves as proof that the holder is authorized to live and work permanently in the U.S. While the physical card has an expiration date (usually 10 years), the underlying status as a lawful permanent resident does not automatically expire.

Gross Proceeds Payment: When a business sells an asset, whether tangible or intangible, it receives a payment, which is the gross proceeds. The amount includes the costs of production and other costs and expenses related to the transaction.

IRC Section 3406(a): Requires that, under certain circumstances, including the payee's failure to provide a TIN, the payer must perform backup withholding.

IRS Notice 972CG: The IRS started mailing 972CG penalty notices in July 2013 regarding 1099's with missing or incorrect TIN/Name Combinations. A 972CG is a NOTICE OF PROPOSED CIVIL PENALTY. A simple way to prevent this costly penalty is to verify that your information is correct prior to filing.

IRS Secure Access: The IRS is using ID.me, a trusted technology provider, to provide identity verification and sign-in services. If you have an ID.me account from a state government or federal agency, you can sign in without verifying your identity again. If you’re a new user, you’ll have to create a new ID.me account. This identity verification process applies to IRS services including Online Account, Get Transcript Online, Online Payment Agreement, Get an Identity Protection PIN (IP PIN), Tax Pro Account, and Submit Forms 2848 and 8821 Online. The purpose is to prevent taxpayer impersonations and account takeovers by identity thieves.

ITIN : An Individual Taxpayer Identification Number is a United States tax processing number issued by the Internal Revenue Service. It is a nine-digit number that begins with the number 9, and the 4th and 5th digits, also known as second section, range from 70 to 88, 90 to 92 and 94 to 99.

Independent Contractor: An independent contractor is a person or entity contracted to perform work or provide services to another entity as a non-employee. As a result, independent contractors must pay their own Social Security and Medicare taxes. - Investopedia (https://www.investopedia.com/)

Liability: In financial accounting, a liability is defined as the future sacrifices of economic benefits that the entity is obliged to make to other entities as a result of past transactions or other past events, the settlement of which may result in the transfer or use of assets, provision of services or other yielding of economic benefits in the future.

Limited Liability Company (LLC): An LLC is a corporate structure where members cannot be held accountable for the company’s debts or liabilities. This can shield business owners from losing their entire life savings if, for example, someone were to sue the company. Can be a single member (much like a sole proprietor) or a multi-member. It shares certain traits of both corporations as well as partnerships or sole proprietorships. It is not a corporation.

Nonresident Alien (NRA): This income is taxed at a flat 30% rate, unless a tax treaty specifies a lower rate. Nonresident aliens must file and pay any tax due using Form 1040NR, U.S. Nonresident Alien Income Tax Return or Form 1040NR-EZ, U.S. Income Tax Return for Certain Nonresident Aliens with No Dependents.

Reasonable Cause : Reasonable cause is based on all the facts and circumstances in your situation. The IRS will consider any reason which establishes that you used all ordinary business care and prudence to meet your federal tax obligations but were nevertheless unable to do so.

Resident Alien : A resident alien is a foreign person who is a permanent resident of the country in which he or she resides but does not have citizenship. To fall under this classification in the United States, a person needs to either have a current green card or have had one in the previous calendar year.

S Corporation: An S corporation, for United States federal income tax, is a closely held corporation that makes a valid election to be taxed under Subchapter S of Chapter 1 of the Internal Revenue Code. In general, S corporations do not pay any income taxes.

TIN: A Taxpayer Identification Number is an identifying number used for tax purposes in the United States and in other countries under the Common Reporting Standard. In the United States, it is also known as a Tax Identification Number or Federal Taxpayer Identification Number.

TIN Match Program: TIN Matching is part of a suite of Internet-based pre-filing e-services that allows “authorized payers” the opportunity to match 1099 payee information against IRS records prior to filing information returns.

W-8BEN: Form W8-BEN, Certificate of Foreign Status of Beneficial Owner for U.S. Tax Withholding, is used by a foreign person to establish both foreign status and beneficial ownership, and to claim income tax treaty benefits with respect to income other than compensation for personal services. Give Form W-8 BEN to the withholding agent or payer if you are a foreign person and you are the beneficial owner of an amount subject to withholding. Submit Form W-8 BEN when requested by the withholding agent or payer whether or not you are claiming a reduced rate of, or exemption from, withholding.


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Frequently Asked Questions

TIN (Taxpayer Identification Number) verification is the process of confirming that the name and tax ID number provided by a payee on Form W-9 match IRS records before issuing a 1099 information return. It is a critical compliance safeguard because while recent de minimis error rules provide some leniency for small dollar amount discrepancies on 1099s, inaccuracies in payee names or TINs are never treated as minor errors and can lead to significant IRS penalties. Unverified or mismatched TINs trigger CP2100 or CP2100A notices from the IRS, initiating a compliance response process that is significantly more burdensome than preventing the mismatch in the first place. The IRS TIN Matching Program allows authorized payers to verify TIN and name combinations against IRS records electronically before filing, providing a proactive opportunity to resolve discrepancies. Organizations that establish systematic TIN solicitation and verification processes significantly reduce their year-end 1099 compliance burden. Chuck Borek, attorney and CPA, provides comprehensive TIN verification best practices in Aurora Training Advantage's TIN Verification, B-Notices, and Backup Withholding webinar.
A B-Notice is a notification sent to a payer (employer or business) by the IRS indicating that one or more payee TINs reported on 1099 forms are either missing or do not match IRS records. There are two types: a First B-Notice is issued when there is a TIN mismatch; a Second B-Notice indicates the mismatch has persisted across multiple filings. Upon receiving a B-Notice, the payer must solicit a new Form W-9 from the affected payee within 15 business days and begin backup withholding at the current rate (24%) if the payee does not respond within 30 days with a valid TIN. For a Second B-Notice, the payee must provide a Social Security Number verification from the Social Security Administration or an EIN verification from the IRS—a Form W-9 alone is not sufficient. Failing to follow B-Notice procedures exposes organizations to substantial penalties under IRC Section 3406. Chuck Borek, who has extensive experience advising on 1099 compliance, walks through complete B-Notice response procedures in Aurora Training Advantage's TIN Verification and Backup Withholding webinar.
Backup withholding is a mechanism that requires payers to withhold federal income tax at a flat rate—currently 24%—on certain payments when specific IRS-required conditions are not met. Common triggers include: a payee fails to provide a TIN; the IRS notifies the payer via a B-Notice that the TIN provided is incorrect; the payee fails to certify that they are not subject to backup withholding; or backup withholding is required under specific statutory payment categories. Payments subject to backup withholding include most 1099-reportable payments—interest, dividends, rents, royalties, non-employee compensation, and others—with certain exemptions for corporations and foreign persons (who instead fall under Chapter 3 withholding). Backup withholding amounts must be reported on Form 945 (Annual Return of Withheld Federal Income Tax), not on Form 941. The withheld amounts are deposited with the IRS on the same schedule as other employment tax deposits. Chuck Borek covers all backup withholding triggers, exemptions, and reporting requirements in Aurora Training Advantage's TIN Verification, B-Notices, and Backup Withholding webinar.
The IRS TIN Matching Program is an internet-based e-service that allows authorized payers to verify that payee name and TIN combinations match IRS records before submitting 1099 information returns. Using TIN Matching proactively—before filing—enables organizations to identify and correct mismatches without triggering IRS penalty notices, B-Notice obligations, or backup withholding requirements. Eligibility to use the system requires registration through the IRS e-Services portal using Secure Access authentication. Organizations can submit TIN matching requests interactively (one at a time) or in bulk for larger payee populations. The system returns a match or mismatch indicator for each submitted combination, allowing the payer to contact affected vendors for corrected W-9s before the filing deadline. Implementing TIN matching as a standard onboarding procedure—verifying every new vendor's TIN before making the first payment—is the most efficient approach, preventing mismatches from ever appearing in the 1099 filing. Chuck Borek provides complete registration and usage guidance for the TIN Matching Program in Aurora Training Advantage's TIN Verification webinar.
The IRS imposes tiered penalties for 1099 information returns with incorrect or missing TIN/name combinations, and the amounts are substantial for organizations with large vendor populations. Penalties for incorrect information returns range from $60 to $330 per return depending on how quickly the error is corrected—lower penalties apply if corrections are made within 30 days of the due date, and the maximum applies when errors are not corrected at all. For intentional disregard, the minimum penalty is $660 per return with no cap. Beyond information return penalties, failure to comply with B-Notice backup withholding procedures triggers additional penalties under IRC Section 3406. Reasonable cause is the primary defense against 1099 penalties, and it requires demonstrating that the payer used ordinary business care and prudence in attempting to comply. Documentation of TIN solicitation efforts—sending W-9 requests promptly, following up on non-responses, and maintaining records of all attempts—is the foundation of a reasonable cause defense. Chuck Borek, an attorney and CPA who has advised extensively on 1099 compliance, covers penalty structures and reasonable cause documentation in Aurora Training Advantage's TIN Verification, B-Notices, and Backup Withholding webinar.