What Is the CP 575?

The CP 575 is an official IRS notice confirming that a business has been assigned an Employer Identification Number (EIN). It serves as proof of EIN issuance and is often requested by banks, lenders, or government agencies for verification—not typically required for routine tax filings. EINsearch.com is not affiliated with the IRS and cannot issue or retrieve official IRS documents like the CP 575 or 147C letters. If you’ve misplaced your CP 575, you’ll need to contact the IRS Business & Specialty Tax Line at 1-800-829-4933 to request a 147C EIN Verification Letter, which serves as the official replacement for a lost CP 575.

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Simplify Your Vendor Verification.

Whether you manage 10 or 10,000 vendors, EINsearch.com helps you validate TINs, search EINs, and screen for OFAC compliance—all in one place.

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What EINsearch.com Offers

EINsearch.com provides powerful, real-time business identity and compliance solutions—including real-time TIN validation, EIN lookup from an internal database of more than 20 million EINs OFAC sanctions checks, and both API and Batch TIN Matching capabilities.

These tools help organizations verify vendor and contractor information instantly, ensuring data accuracy, preventing IRS mismatches, and maintaining compliance with federal regulations. Whether onboarding new vendors, validating TINs prior to 1099 filings, or conducting KYC/KYB due diligence, EINsearch.com delivers fast, reliable, and secure verification solutions that streamline operations and minimize compliance risk.

Case Scenario 1: CP 575 Request

A new small business owner applies for an EIN through the IRS website to open a business bank account. Applicants who apply online typically receive the CP 575 immediately as a downloadable PDF, while fax or mail applications may take several weeks—this is the IRS letter confirming that their EIN has been issued.

Later, when the business applies for a government contract, the contracting agency requests a copy of the CP 575 as proof of the EIN assignment. Since this document can only be issued by the IRS, the business must contact the IRS directly if it has been misplaced, not a third-party service like EINsearch.com.

Case Scenario 2: Annual Vendor TIN and OFAC Verification

A mid-sized corporation prepares its annual 1099 filings for hundreds of vendors and contractors. Before submission, the accounting team uploads a file to a secure FTP provided by the EINsearch team to perform a batch TIN match and EIN lookup, verifying that each vendor’s TIN matches the legal business name on file.

In addition, the accounting team manually conducts OFAC sanctions checks through EINsearch.com to ensure that none of its vendors or payees appear on federal watchlists, safeguarding the company against potential compliance violations. By leveraging EINsearch.com’s database of over 20 million EINs, the corporation receives its completed batch in 72 hours or less and streamlines its year-end reporting process, reduces administrative errors, and supports full IRS and OFAC compliance.

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Run real-time TIN validations, EIN lookups, and OFAC checks in seconds. Protect your business from costly IRS mismatches and compliance risks.

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Customer Feedback

Not only is the information readily available, but it is very fairly priced.

“We are a busy tax office and frequently need to secure an EIN in a prompt manner. I have tried several services and although they had results, the cost was prohibitive for a small business. EINsearch has resolved that. Not only is the information readily available, but it is very fairly priced. We are glad we found it!”
-Siete Diaz Tax & Insurance
Fast, easy to work with!

“They help us validate our new customers when they come onboard. They are fast, easy to work with and provide updates whenever there are any issues with the IRS. Would recommend!”
-D.O., Brightwheel
Very reliable system!

"The system is very reliable and has proven to be a great source for our business needs."
-Get Movin’ Fundraising
A game changer!

"As a Procurement Manager for several local restaurants, EINsearch has been a game-changer. I no longer have to wait for vendors to provide their EINs—I can instantly look them up & add them to their vendor file or validate TINs, all under one subscription. Having these tools in one place saves me time & keeps my records accurate. When it’s time to send 1099s, everything is ready to go. Highly recommend for anyone managing multiple suppliers!"
-L.W., Procurement Manager & Director of Operations
A good system!

"Overall, it’s a good system. If I had to hone in on anything, though, it is its simplicity. That makes it so much easier to train everyone else."
-N.P., Vida Divina
Very user freindly!

EINsearch was very user friendly. After verifying multiple EIN numbers I feel more confident that our filing system is up to date accurate. If you work in finance or in accounts payable this is a needed tool for you! I highly recommend this company and the assurance it brings!
-Coastal Edge Electric

Ready To Get Started? Contact Us Today!

Ready to enhance compliance and expedite your workflow? Contact us today to learn more about our solutions and how we can support your compliance efforts. Whether you’re in the financial sector or managing client accounts, we’re here to help you navigate compliance with ease!