{"id":4039,"date":"2026-10-19T04:07:50","date_gmt":"2026-10-19T04:07:50","guid":{"rendered":"https:\/\/getw9.tax\/blog\/?p=4039"},"modified":"2026-10-13T22:46:03","modified_gmt":"2026-10-13T22:46:03","slug":"fix-w9-mistakes-before-1099-filing","status":"publish","type":"post","link":"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/","title":{"rendered":"Fix W-9 Mistakes Before They Become 1099 Problems"},"content":{"rendered":"<p><strong>To fix W-9 mistakes before filing 1099s, check the taxpayer name, tax ID, tax classification, and mailing address. Ask the vendor to correct inaccurate information, then update your accounting records. If you received an IRS notice, follow its required response process.<\/strong><\/p>\n<p>Fall is a useful time to review vendor records before the 2027 filing season. A small error can create extra work when you prepare tax year 2026 information returns. This guide separates routine W-9 cleanup from IRS notice procedures so your team can take the right next step.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Eight_W-9_mistakes_to_check_before_1099_filing\" >Eight W-9 mistakes to check before 1099 filing<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#1_A_business_name_in_place_of_the_taxpayer_name\" >1. A business name in place of the taxpayer name<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#2_A_name_and_tax_ID_that_do_not_belong_together\" >2. A name and tax ID that do not belong together<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#3_An_LLC_classified_by_its_legal_label_rather_than_tax_treatment\" >3. An LLC classified by its legal label rather than tax treatment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#4_Missing_digits_or_an_incomplete_tax_ID\" >4. Missing digits or an incomplete tax ID<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#5_An_overlooked_certification_requirement\" >5. An overlooked certification requirement<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#6_An_older_form_that_needs_review\" >6. An older form that needs review<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#7_An_incomplete_mailing_address\" >7. An incomplete mailing address<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#8_Changes_that_never_reached_your_records\" >8. Changes that never reached your records<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#W-9_line_1_vs_line_2_a_quick_reference\" >W-9 line 1 vs. line 2: a quick reference<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#CP2100_notices_and_B-Notices_are_different\" >CP2100 notices and B-Notices are different<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#First_B-Notice_track_the_response_deadline\" >First B-Notice: track the response deadline<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Second_B-Notice_another_W-9_is_not_enough\" >Second B-Notice: another W-9 is not enough<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Missing_tax_IDs_need_prompt_attention\" >Missing tax IDs need prompt attention<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Prepare_for_the_FIRE-to-IRIS_transition\" >Prepare for the FIRE-to-IRIS transition<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#A_practical_plan_to_fix_W-9_mistakes_this_fall\" >A practical plan to fix W-9 mistakes this fall<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#How_getW9_helps_with_routine_W-9_cleanup\" >How getW9 helps with routine W-9 cleanup<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Frequently_asked_questions_about_W-9_mistakes\" >Frequently asked questions about W-9 mistakes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Can_I_change_a_vendors_signed_W-9_myself\" >Can I change a vendor\u2019s signed W-9 myself?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Does_a_bank_change_require_a_new_W-9\" >Does a bank change require a new W-9?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Do_I_need_a_new_W-9_from_every_vendor_each_year\" >Do I need a new W-9 from every vendor each year?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Can_getW9_send_the_required_B-Notice_for_me\" >Can getW9 send the required B-Notice for me?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/getw9.tax\/blog\/fix-w9-mistakes-before-1099-filing\/#Finish_W-9_cleanup_before_filing_season\" >Finish W-9 cleanup before filing season<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Eight_W-9_mistakes_to_check_before_1099_filing\"><\/span>Eight W-9 mistakes to check before 1099 filing<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Start with these checks. A form that looks complete can still contain the wrong taxpayer information.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_A_business_name_in_place_of_the_taxpayer_name\"><\/span>1. A business name in place of the taxpayer name<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Do not assume a trade name belongs on line 1. Use the taxpayer name required for the vendor\u2019s tax classification. Put a different business or DBA name on line 2.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"2_A_name_and_tax_ID_that_do_not_belong_together\"><\/span>2. A name and tax ID that do not belong together<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Check line 1 and Part I together. For example, a disregarded LLC\u2019s name paired with its individual owner\u2019s SSN can cause a mismatch. Ask the vendor to confirm the correct combination.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"3_An_LLC_classified_by_its_legal_label_rather_than_tax_treatment\"><\/span>3. An LLC classified by its legal label rather than tax treatment<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u201cLLC\u201d alone does not tell you how a business is taxed. A disregarded LLC follows its owner\u2019s classification. An LLC taxed as a corporation or partnership uses the applicable classification. Ask the vendor to confirm uncertain cases with their adviser.<\/p>\n<p>Tax classification is only one part of deciding whether a payment needs a 1099. Payment type, amount, method, and exceptions also matter. See the <a href=\"https:\/\/www.irs.gov\/instructions\/iw9\">IRS instructions for W-9 requesters<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"4_Missing_digits_or_an_incomplete_tax_ID\"><\/span>4. Missing digits or an incomplete tax ID<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>SSNs and EINs contain nine digits. Flag blanks, extra digits, and letters for review. A number with the correct length can still be wrong, so do not treat a format check as validation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"5_An_overlooked_certification_requirement\"><\/span>5. An overlooked certification requirement<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Do not label every unsigned W-9 invalid. For many ordinary business payments, a correct TIN is required but a signature generally is not, unless the payee was notified of a previously incorrect TIN. A First B-Notice response requires a signed W-9. Your collection policy may also request a signature.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"6_An_older_form_that_needs_review\"><\/span>6. An older form that needs review<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Use the current IRS form for new requests. However, age alone does not mean a stored W-9 is wrong. Review whether the information is still accurate and whether any relevant fields or certifications need updating.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"7_An_incomplete_mailing_address\"><\/span>7. An incomplete mailing address<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Check street details, suite or unit numbers, city, state, and ZIP code. Address errors can lead to returned recipient copies. Address standardization helps mailing accuracy; it does not establish the vendor\u2019s identity.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"8_Changes_that_never_reached_your_records\"><\/span>8. Changes that never reached your records<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ask vendors to report changes to taxpayer names, tax IDs, addresses, and tax treatment. Review what changed before requesting a replacement form. A bank-account change is a separate payment-control issue; a W-9 does not authorize new payment instructions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"W-9_line_1_vs_line_2_a_quick_reference\"><\/span>W-9 line 1 vs. line 2: a quick reference<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The examples below assume U.S. vendors. They illustrate common cases, not every ownership structure.<\/p>\n<table>\n<caption>Common taxpayer-name and tax-ID combinations<\/caption>\n<thead>\n<tr>\n<th scope=\"col\">Vendor type<\/th>\n<th scope=\"col\">Line 1<\/th>\n<th scope=\"col\">Line 2<\/th>\n<th scope=\"col\">Tax ID in Part I<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sole proprietor<\/td>\n<td>Individual owner\u2019s name<\/td>\n<td>Business or DBA name, if different<\/td>\n<td>Owner\u2019s SSN or EIN, if the owner has one<\/td>\n<\/tr>\n<tr>\n<td>Single-member LLC disregarded for tax purposes, with an individual owner<\/td>\n<td>Individual owner\u2019s name<\/td>\n<td>LLC\u2019s name<\/td>\n<td>Owner\u2019s SSN or EIN, if the owner has one<\/td>\n<\/tr>\n<tr>\n<td>LLC taxed as a partnership or corporation<\/td>\n<td>Entity\u2019s tax-return name<\/td>\n<td>Different business or DBA name<\/td>\n<td>Entity\u2019s EIN<\/td>\n<\/tr>\n<tr>\n<td>C or S corporation<\/td>\n<td>Corporation\u2019s tax-return name<\/td>\n<td>Different business or DBA name<\/td>\n<td>Corporation\u2019s EIN<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Use the <a href=\"https:\/\/www.irs.gov\/pub\/irs-pdf\/fw9.pdf\">current Form W-9 instructions<\/a> for name, TIN, and signature rules. For an entity-owned disregarded LLC, follow the owner rules rather than assuming an individual\u2019s name belongs on line 1.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"CP2100_notices_and_B-Notices_are_different\"><\/span>CP2100 notices and B-Notices are different<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>A CP2100 or CP2100A is an IRS notice to the payer about missing or incorrect payee tax IDs. A B-Notice is the notice the payer sends to an affected payee when the applicable mismatch rules require it.<\/p>\n<p>First, compare the IRS listing with your records. A reporting error, record update, or IRS processing error may require a different response from an unresolved vendor mismatch. Do not automatically send every listed vendor a new W-9. See the <a href=\"https:\/\/www.irs.gov\/individuals\/understanding-your-cp2100-or-cp2100a-notice\">IRS CP2100\/CP2100A guidance<\/a>.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"First_B-Notice_track_the_response_deadline\"><\/span>First B-Notice: track the response deadline<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>When required, send the First B-Notice and Form W-9 within 15 business days of the IRS notice date or receipt date, whichever is later. If the payee does not return a signed W-9, begin backup withholding no later than 30 business days from that same starting date.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Second_B-Notice_another_W-9_is_not_enough\"><\/span>Second B-Notice: another W-9 is not enough<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A second qualifying notification within three calendar years follows a different process. Send the required Second B-Notice; do not include a W-9. Obtain the prescribed IRS or SSA validation. Publication 1281 includes special rules for repeated notices in the same year.<\/p>\n<p>Follow <a href=\"https:\/\/www.irs.gov\/pub\/irs-pdf\/p1281.pdf\">IRS Publication 1281<\/a> for mailing requirements, validation documents, and withholding deadlines. It also explains why a CP2100 response generally does not call for a corrected 1099 solely to fix a name\/TIN mismatch. Separate filing errors may need a different correction process.<\/p>\n<p>A routine secure W-9 request or reminder does not replace a required B-Notice or its delivery rules.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Missing_tax_IDs_need_prompt_attention\"><\/span>Missing tax IDs need prompt attention<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Do not assume a missing TIN gets the same waiting period as a First B-Notice mismatch. For payments subject to backup withholding, a missing TIN generally requires withholding immediately. The current rate is 24%.<\/p>\n<p>Ask your tax professional to apply the <a href=\"https:\/\/www.irs.gov\/businesses\/small-businesses-self-employed\/backup-withholding\">IRS backup-withholding rules<\/a>, including exceptions, deposits, and reporting. Keep records of TIN requests and follow-up actions.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Prepare_for_the_FIRE-to-IRIS_transition\"><\/span>Prepare for the FIRE-to-IRIS transition<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The IRS says current FIRE users must transition to IRIS for tax year 2026 information returns filed during the 2027 filing season. If your business uses FIRE, review access, software, and filing arrangements now. See the <a href=\"https:\/\/www.irs.gov\/newsroom\/irs-reminder-information-return-e-file-system-transitioning-to-a-new-platform\">IRS transition announcement<\/a>.<\/p>\n<p>Do not assume every mismatch rejects an entire submission. Read the acknowledgment and follow the process for its status. Accepted-with-errors and rejected filings require different handling. Check the <a href=\"https:\/\/www.irs.gov\/filing\/e-file-information-returns-with-iris\">IRS IRIS resources<\/a> before resubmitting, so you avoid duplicate filings.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"A_practical_plan_to_fix_W-9_mistakes_this_fall\"><\/span>A practical plan to fix W-9 mistakes this fall<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ol>\n<li><strong>Review incoming notices.<\/strong> Record receipt dates and assign someone to track required responses.<\/li>\n<li><strong>Review active vendor records.<\/strong> Use restricted access. Avoid emailing spreadsheets containing full tax IDs.<\/li>\n<li><strong>Flag exceptions.<\/strong> Look for blanks, incorrect formats, unclear classifications, and incomplete addresses.<\/li>\n<li><strong>Ask vendors to correct their information.<\/strong> Keep their submitted forms intact. Record what changed and update the relevant systems.<\/li>\n<li><strong>Use TIN Matching if eligible.<\/strong> The <a href=\"https:\/\/www.irs.gov\/tax-professionals\/taxpayer-identification-number-tin-matching\">IRS TIN Matching service<\/a> checks name\/TIN combinations before filing. Confirm eligibility and registration. A match does not prove vendor identity.<\/li>\n<li><strong>Reconcile before filing.<\/strong> Compare the W-9, vendor profile, and filing export. Resolve differences before submission.<\/li>\n<li><strong>Protect your records.<\/strong> Limit access and follow retention rules. Read our guide to <a href=\"https:\/\/getw9.tax\/blog\/protecting-w9-1099-data-irs-security-campaign\/\">protecting W-9 and 1099 data<\/a>.<\/li>\n<\/ol>\n<h2><span class=\"ez-toc-section\" id=\"How_getW9_helps_with_routine_W-9_cleanup\"><\/span>How getW9 helps with routine W-9 cleanup<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/getw9.tax\/\">getW9<\/a> lets vendors complete W-9s online through secure links. Completed PDFs and details are stored in your account. Its published features include automatic reminders, bulk requests, data exports, and QuickBooks Online integration.<\/p>\n<p>The Giga plan includes USPS address validation to help catch mailing errors. getW9 also states that it encrypts information using AES-256.<\/p>\n<p>These features support collection and recordkeeping. Your team still needs to review accuracy, apply reporting rules, and complete any required IRS notice process.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_asked_questions_about_W-9_mistakes\"><\/span>Frequently asked questions about W-9 mistakes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Can_I_change_a_vendors_signed_W-9_myself\"><\/span>Can I change a vendor\u2019s signed W-9 myself?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Ask the vendor to submit corrected information rather than altering their certification. Keep the original form and an audit trail of updates to your records.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_bank_change_require_a_new_W-9\"><\/span>Does a bank change require a new W-9?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A bank change alone is not a change to W-9 tax information. Verify payment instructions separately through a trusted contact. Request updated tax information when that information changes.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Do_I_need_a_new_W-9_from_every_vendor_each_year\"><\/span>Do I need a new W-9 from every vendor each year?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Use a review process instead of assuming every form expires annually. Confirm whether the vendor\u2019s information changed or a specific notice or requirement calls for new documentation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_getW9_send_the_required_B-Notice_for_me\"><\/span>Can getW9 send the required B-Notice for me?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A normal getW9 request is a collection tool. Do not treat it as the required B-Notice. Use the IRS process for formal notices, and use getW9 for routine collection where appropriate.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Finish_W-9_cleanup_before_filing_season\"><\/span>Finish W-9 cleanup before filing season<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Fix W-9 mistakes early so your team has time to resolve exceptions. Keep the vendor\u2019s form, your accounting records, and your filing data aligned.<\/p>\n<p>Ready to simplify collection? <a href=\"https:\/\/getw9.tax\/\">Explore getW9 and start a 7-day free trial<\/a>.<\/p>\n<p><em>Reviewed October 5, 2026. This guide provides general information, not individualized tax or legal advice. Follow current IRS instructions and consult your tax professional about your situation.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fix W-9 mistakes before 1099 filing. Check taxpayer names, tax IDs, LLC classifications, and addresses, and learn how to respond to IRS notices.<\/p>\n","protected":false},"author":2,"featured_media":4040,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[206],"tags":[159,157,160,67,240,89],"class_list":["post-4039","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-w-9-accuracy","tag-cp2100","tag-form-w-9","tag-name-tin-mismatch","tag-tin-matching","tag-vendor-data","tag-w-9-compliance"],"blocksy_meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fix W-9 Mistakes Before 1099 Filing | getW9<\/title>\n<meta name=\"description\" content=\"Fix W-9 mistakes before 1099 filing. 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