Firms that form entities for many clients rarely file just one EIN. Every new LLC or corporation needs its own Employer Identification Number, and each application has to match the entity’s formation documents before the IRS will process it. Run that across dozens or hundreds of entities and the EIN stops being a one-time task. It becomes an ongoing tracking problem: which entities have their number, which applications are still pending, and where the confirmation letters actually live.
For CPAs, law firms, and corporate service providers, the EIN is one of the first things a new client entity needs and one of the easiest to lose track of at volume. This piece covers how to keep EIN applications accurate and organized alongside the formations and compliance filings they belong to, managed from a single system rather than a spreadsheet.
An EIN is one of the first things a new business needs, and errors in the application cause delays that push back everything that comes after. Most banks require an EIN before they will open a business bank account, so a delayed number holds up payments, payroll setup, and basic operations from the start.
Three things make this harder as the number of entities grows.
First, the application itself is exacting. The IRS Form SS-4 requires accurate information about the entity type, the responsible party, and the business purpose. Any inconsistency with the entity’s state formation documents can trigger an IRS rejection and a delay of days or weeks. One rejected SS-4 is one client kept waiting.
Second, foreign ownership adds a separate track. Entities with a foreign responsible party cannot use the IRS online application system, so they follow a different process that takes significantly longer. A portfolio that mixes domestic and foreign-owned entities is really running two workflows at once.
Third, and most relevant to high-volume firms, is the coordination problem. CPAs, law firms, and corporate service providers forming entities for multiple clients have to manage EIN applications alongside formations, registered agents, and compliance filings, and most do it without a centralized system to track it all. The result is scattered confirmation letters, no single view of which entities are covered, and a number that only surfaces when a bank or an accountant asks for it.
The EIN comes after formation, not before. You need to form the business entity first because the application requires the entity’s legal name and state of formation. Applying too early, or before the state has approved the entity, is one of the common ways an application stalls.
FileForms handles both steps in the same workflow. You can form an LLC or corporation and obtain its EIN together, with FileForms coordinating both filings and submitting the EIN application immediately after the state approves the entity. For a firm spinning up many entities, that sequencing is the point: the EIN goes in at the right moment as part of the formation, rather than being remembered and filed separately later.
Accuracy is what keeps a portfolio moving. FileForms prepares the IRS Form SS-4, cross-referencing the entity’s formation documents so the two are consistent and the application is complete before it is submitted. That cross-check is what reduces the risk of an IRS rejection or a follow-up request, and at scale it is the difference between a batch of entities that clear cleanly and a queue of exceptions to chase.
Timing depends on the responsible party. For entities with a US-based responsible party, EINs are typically issued by the IRS within one to two business days when filed online. For entities with a foreign responsible party, online filing is not available, so the process runs through the correct alternate IRS pathway and takes longer. FileForms manages both, so a firm does not have to maintain two separate procedures for the domestic and foreign entities in the same book of business.
This is where the multi-entity problem actually gets solved. Once the IRS issues an EIN, FileForms delivers the confirmation letter directly to your compliance dashboard, where it is stored securely and available whenever a bank, an accountant, or another party needs it.
The capability extends across a whole portfolio. FileForms handles EIN applications for portfolios of any size, from single entities to hundreds, and firms use it to manage those applications alongside entity formations and the rest of their compliance workflows from a single dashboard. The EIN confirmation ends up sitting next to the annual report deadline and the registered agent for the same entity, rather than in a separate email thread.
For firms managing at real volume, FileFormsPRO is the layer that carries this. It gives a firm a central repository with secure, role-based access to every entity, filing, and document in one place. Hundreds of entities can be loaded and managed through bulk CSV upload or API rather than entered by hand. Automated reminders and real-time compliance monitoring keep the entire portfolio on track, and an administrator dashboard shows filing status and compliance health across every client entity. Against that backdrop, an EIN is not a loose document but one field in an entity’s record, tied to the formation that created it and the filings it now owes.
A firm can also put EIN work under its own name. CPAs, law firms, and corporate service providers can offer EIN services under their own brand through FileFormsPRO, with bulk workflows, client portals, and wholesale pricing for high-volume practices. The platform white-labels fully, so clients see the firm’s logo and colors, and the firm can set its own fees and bundle EIN procurement with the other services it already delivers. Through the API, FileFormsPRO connects to the practice management, CRM, and accounting systems a firm already runs.
On price, the two paths are distinct. A standard EIN application from FileForms is a $99 flat fee, and there is no separate IRS fee for obtaining an EIN. Firms operating through FileFormsPRO price EIN work under their own brand at wholesale rates for high-volume practices, and the platform’s filing services more broadly start at $100 per filing with volume discounts, with custom enterprise pricing available for the largest firms.
Client tax identifiers are sensitive records, and holding them for dozens or hundreds of entities raises the stakes. Every EIN application and confirmation letter FileForms handles is protected by SOC 2 compliance and enterprise-grade encryption, which are the security standards professional service firms and institutional clients expect.
FileFormsPRO carries the same posture across the whole portfolio: client data sits on AWS backend infrastructure with end-to-end encryption and SOC 2 compliance, and the platform is built to collect and manage key client information securely across hundreds of entities. In practice that means a confirmation letter lives in a controlled, access-managed system rather than in a shared inbox, and a firm can see who has access to what.
One boundary is worth stating plainly. An EIN is a federal tax identification number issued by the IRS. Many states also require a separate state tax ID number for state tax purposes, and that is a different registration. FileForms focuses on federal EIN procurement. For any additional state tax registration a specific entity may need, consult your tax advisor.
FileForms handles EIN applications accurately and efficiently, and keeps them organized alongside the formations and compliance filings each entity carries, so your firm can see the whole portfolio in one place. Start an EIN application through FileForms EIN services, or book a demo of FileFormsPRO to see how it manages EINs across a full book of client entities.
How long does it take to get an EIN?
For entities with a US-based responsible party, EINs are typically issued by the IRS within one to two business days when filed online. Entities with a foreign responsible party cannot file online, so that process takes longer. FileForms delivers the confirmation letter to your dashboard as soon as the IRS issues the number.
Can FileForms obtain EINs for multiple entities at once?
Yes. FileForms handles EIN applications for portfolios of any size, from single entities to hundreds, and firms manage those applications alongside entity formations and the rest of their compliance workflows from a single dashboard.
How much does an EIN cost through FileForms?
FileForms charges a $99 flat fee for an EIN application, covering preparation, submission, and secure delivery of the confirmation letter. There is no separate IRS fee for obtaining an EIN.
Can our firm offer EIN services under our own brand?
Yes. Through FileFormsPRO, CPAs, law firms, and corporate service providers can offer EIN services under their own brand, with bulk workflows, client portals, and wholesale pricing for high-volume practices.
Do we need to form the entity before applying for the EIN?
Yes. The application requires the entity’s legal name and state of formation, so the entity has to be formed first. FileForms can handle the formation and the EIN application in the same workflow and submits the EIN application immediately after the state approves the entity.
Is an EIN the same as a state tax ID?
No. An EIN is a federal tax identification number from the IRS. Many states require a separate state tax ID as well. FileForms handles federal EIN procurement; check with your tax advisor about state tax registration for a given entity.
