Frequently Asked Questions

Prices for EINsearch can be found on our pricing page, with options for teams of all sizes, from individual lookups to enterprise API access.

We update our database as frequently as possible and re-validate all EINs at least quarterly.

Yes. Contact our sales team for batch matching services and help processing large files.

Yes. EINsearch annual plans are available through API, making it straightforward to integrate with accounts payable and compliance workflows.

No. EINsearch is operated by Liberty Data, Inc., a private company. Much of the platform data is obtained through government agencies.

An Employer Identification Number is a unique nine-digit tax identification number issued to a business or other legal entity.

Businesses commonly need an EIN when forming an entity, hiring employees, opening business accounts, filing taxes, or avoiding use of a personal Social Security Number.

EINs identify businesses when filing taxes, submitting government documents, opening bank accounts, and applying for loans or credit.

You may need another company’s EIN when preparing Form 1099, validating vendor details, opening an account, processing a loan, or conducting KYC/KYB checks.

An EIN gives a business a recognized identifier and can help owners protect their personal Social Security Number.

Apply directly through the IRS using Form SS-4 or the online EIN application. Online applications can often be completed in minutes.

Yes. The domain changed from FEINsearch.com to EINsearch.com, while the same TIN Matching, EIN Validation, and EIN Lookup services remain available.

The EIN remains affiliated with the entity. The IRS does not cancel or reassign unused EINs.

There is no IRS fee to acquire or maintain an EIN, and you are not obligated to use it.

You generally need a valid taxpayer identification number plus the entity name, address, formation date, and purpose.

Online applications may be approved immediately. Applications sent by fax or mail can take several weeks.

Yes. A mismatch between the business name and EIN can cause IRS B-Notices and 1099 rejections.

Employers paying federal taxes generally need an EIN. Speak with a tax professional if you believe an exception applies.

LLCs, partnerships, corporations, nonprofit organizations, trusts, and estates commonly require an EIN.

A sole proprietor may use a Social Security Number, although an EIN may still be useful. Ask a tax professional which is best.

Yes. Register the business legally before applying for an EIN with the IRS.

You can apply for an EIN for free through the IRS website.

No. An EIN does not expire, though an entity may need a new EIN after certain ownership or structure changes.

An EIN is one type of Tax Identification Number. Not every TIN is an EIN.

TIN is a broad term covering tax identification numbers. EINs, SSNs, and ITINs are different types of TINs.

TIN validation confirms whether a name and TIN combination matches IRS records and returns a pass or fail result.

Contact the IRS or check prior tax returns, bank documents, and official IRS correspondence that may include the EIN.