Merchant account applications ask for a tax identification number, and the terms EIN, tax ID and TIN are often used as if they mean the same thing. They are related but not identical. Understanding the difference helps you complete your application correctly and avoid underwriting delays caused by mismatched information.
In everyday business use, yes: when a form asks for a business tax ID, it usually means your Employer Identification Number. An EIN is a nine-digit number the IRS assigns to identify a business entity for federal tax purposes. The phrase tax ID is a general label, though, so it can also refer to other identifiers.
EIN vs tax ID is partly a question of terminology. EIN is the specific name of the number issued to businesses. Tax ID is a catch-all term that people use for whichever number identifies a taxpayer. On a merchant application, the safest approach is to enter the number that matches your legal business name in IRS records, which for most businesses is the EIN.
TIN vs EIN comes down to category and example. TIN, or taxpayer identification number, is the umbrella term. An EIN is one type of TIN. Other types include the Social Security number used by individuals and the individual taxpayer identification number for certain people who are not eligible for a Social Security number. So every EIN is a TIN, but not every TIN is an EIN.
Is EIN the same as TIN? Not exactly. An EIN is a type of TIN, so the two terms overlap, but TIN is the broader term. You may also see FEIN, which stands for Federal Employer Identification Number and refers to the same thing as an EIN.
Use the legal business name and taxpayer number exactly as they appear on IRS records. Corporations, LLCs and partnerships generally use their EIN. Some sole proprietors may use a Social Security number, depending on how the business is registered. If you are unsure, confirm with your tax professional or the IRS before submitting.
Underwriters verify the legal name, taxpayer number and business address against public and bank records. A name that does not match the number on file is a common reason applications stall or require extra documents. Read our step-by-step guide to setting up a merchant account to prepare the rest of your application.
For most businesses, yes. The tax ID on an application is typically the EIN.
Most processors request a taxpayer identification number, usually an EIN. Requirements vary by structure and processor.
Yes, subject to underwriting. See our high-risk merchant account solutions.
Every merchant's processing setup is different, so the right answer depends on your industry, sales channels, average ticket size and chargeback history. CARDZ3N's payments specialists review those details with you and match your business with the right sponsor bank, gateway and risk tools, whether you sell online, in store, by invoice or on a recurring subscription.
We work with merchants across the USA, Canada, the UK and the EU, including high-risk, B2B and fast-growing businesses that traditional processors often turn away. If you would like a second opinion on your current rates, contract terms or approval options, contact our team for a free, no-obligation processing review.
Joshua Benedetti is the CEO of CARDZ3N, a Las Vegas-based merchant services provider specializing in high-risk payment processing and B2B payment technology.
Joshua Benedetti on LinkedInCARDZ3N Inc is headquartered in Las Vegas, Nevada, and provides merchant services to businesses that traditional processors turn away. Backed by top-tier sponsor banks and processors, CARDZ3N combines institutional stability with the speed of a specialized team that understands high-risk industries. Services include high-risk account underwriting and placement, gateway solutions across the major gateway platforms, POS integrations, ACH and check processing, chargeback prevention through ChargebackZ3N, and business lending and working capital. Its AerospacePay division serves OEMs, MROs, FBOs, and repair stations with B2B and B2G payment processing. CARDZ3N serves merchants in the USA, Canada, the UK, and the EU.
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