The IRS offers tax professionals and other authorized users a collection of online services under the e-Services umbrella. Each service addresses specific tasks and carries its own eligibility requirements, authentication mechanisms and authorization boundaries. Selecting the correct entry point and understanding what each service can and cannot do prevents unnecessary roadblocks and protects client information. This guide explains how to navigate the e-Services directory, distinguish between service login and client authority, and recognize when your role or legal capacity determines your access path.
Service categories and their purposes
The IRS e-Services portal groups tools by function rather than user type. E-file provider services handle electronic filing transmission and administrative tasks for authorized Electronic Return Originators and transmitters. Transcript Delivery System provides transcript retrieval for eligible return preparers and representatives holding proper client authorization. TIN Matching allows payers and reporting agents to validate taxpayer identification number and name combinations before filing information returns. Information Returns Intake System supports filing Forms 1099, 1098 and other information returns without an Electronic Filing Identification Number, using a Transmitter Control Code. ACA Information Returns services handle Affordable Care Act reporting.
Each service maintains separate eligibility criteria. Holding one credential or completing one application does not automatically grant access to all tools in the directory. An ERO with an EFIN approved for individual income tax returns will not automatically gain TIN Matching privileges or an ACA Transmitter Control Code. A Circular 230 practitioner with a valid PTIN may use the IRS Tax Pro Account to request third-party authorization but still needs proper client consent and recorded authorization to retrieve transcripts through the Transcript Delivery System.
The following table maps common tasks to the appropriate e-Services tool:
| Task | Service | Eligibility gate |
|---|---|---|
| Transmit client income tax returns electronically | E-file provider services (ERO) | Approved EFIN application and suitability check |
| Request or view recorded third-party authorization for individual taxpayer | Tax Pro Account | Valid PTIN, practice authority for power of attorney requests |
| Retrieve individual or business tax return transcript with authorization | Transcript Delivery System | Eligible ERO or Circular 230 practitioner with recorded Form 2848 or 8821 |
| Validate name and TIN combinations for 1099 series | TIN Matching | Reporting agent or payer registration |
| File Forms 1099 or 1098 without EFIN | IRIS with TCC | Complete TCC application for information returns |
Authentication and identity verification
Sign in through the official IRS entry point for the service you need. Account authentication, service eligibility and client authority are separate checks. In Tax Pro Account, linking an individual CAF associates it with the assigned person’s SSN or ITIN; linking a business CAF associates it with the EIN through an authorized user. Linking shows active recorded authorizations and permitted taxpayer information, but does not create new client authority.
E-file provider applications operate separately from Tax Pro Account. Completing an EFIN application through the e-Services portal triggers a suitability review that examines firm tax compliance, credit history, criminal background and prior e-file participation. Principals and Responsible Officials holding current qualifying professional status as attorneys, CPAs or enrolled agents provide that information. Individuals without those credentials complete electronic fingerprinting through an IRS-authorized vendor using the scheduling link provided during the application process. The review can take up to 45 days from submission, though timing varies. Approval delivers an EFIN that identifies the firm as an authorized provider for the selected filing categories. The EFIN is distinct from your individual PTIN and does not replace client authorization requirements.
Transcript Delivery System eligibility depends on your professional standing and the specific authorization instrument on file. EROs and Circular 230 practitioners may access TDS if they hold a properly executed Form 2848 or Form 8821 for the taxpayer and meet the service's access requirements. Viewing taxpayer account information in Tax Pro Account does not automatically enable full transcript document retrieval through TDS. Each system applies its own verification checks.
Authority to act versus authority to access
Legal capacity to act on behalf of a taxpayer differs from permission to use an IRS service. A fiduciary appointed under state law to administer an estate or trust stands in the taxpayer's position and may perform acts the taxpayer could perform, subject to fiduciary duties. Form 56 notifies the IRS of the creation or termination of a fiduciary relationship under section 6903 and gives notice of qualification under section 6036. Filing Form 56 does not create the fiduciary status itself—the court appointment or trust instrument establishes the legal capacity. The notice informs the IRS which entity or person to recognize when the fiduciary contacts the Service regarding the applicable tax matters and periods listed on the form.
Form 56 is not a substitute for Form 2848 power of attorney. A fiduciary already acting in that capacity does not need to appoint themselves as an agent using a third-party authorization form to perform fiduciary duties. However, the fiduciary must still provide appropriate evidence of authority and follow the IRS channels for the specific task. Accessing transcripts through TDS, for example, requires meeting the system's eligibility criteria and proving the legal relationship through proper documentation, not simply asserting fiduciary status.
An agent holding a power of attorney under Form 2848 exercises authority within the scope granted by the taxpayer. That authorization appears in the Centralized Authorization File once the IRS processes and records the form. The agent may then use services that recognize CAF authority for the specified tax matters and periods. The authorization does not extend beyond the matters listed. If the taxpayer grants authority for income tax but not employment tax, the agent cannot retrieve employment tax transcripts or represent the taxpayer in employment tax examinations.
Tax Pro Account currently supports digital power of attorney and tax information authorization requests for individual taxpayers who have a United States address on file matching IRS records. The taxpayer must accept the request through their own IRS online account. If the taxpayer does not yet have an online account, they may create one after the practitioner submits the request. Business taxpayer authorization requests are not available through the digital request feature. Digital requests that the taxpayer approves process in real time under service conditions. Requests the taxpayer rejects or that encounter processing issues may not display a status update. This digital route is separate from uploading a completed Form 2848 or Form 8821 PDF through the account, which the IRS processes manually.
Choosing your access route
When you need to accomplish a specific task, start by identifying the nature of your relationship with the taxpayer or reporting obligation. If you are the taxpayer's authorized representative under a recorded Form 2848 or Form 8821, confirm that the authorization covers the tax type and period relevant to your task. Check whether the authorization appears in your linked CAF record through Tax Pro Account. If the authorization is absent, determine whether the form was submitted, processed and recorded, or whether you need to submit a new authorization.
Fiduciaries should confirm that Form 56 has been filed if required for the relationship type, then follow the appropriate channel for the requested information or action. Executors and administrators of estates, trustees, guardians and conservators each operate under different legal frameworks. The October 5, 2026 IRS clarification specifies that only receivers, similar fiduciaries and assignees for creditors file Form 56 with the Dallas Insolvency office. Other fiduciary relationships file with the IRS service center where the person for whom they are acting is required to file tax returns. Consult the current instructions and clarified filing addresses rather than outdated general guidance.
If you are applying to become an e-file provider for the first time or adding a filing category, access the e-file application through the e-Services portal and complete the firm application. Gather details for all Principals and Responsible Officials, confirm current professional credentials if applicable and prepare for the suitability review timeline. Once approved, your EFIN enables electronic filing transmission for the authorized categories but does not grant access to unrelated services such as TIN Matching or TDS without meeting those services' separate requirements.
Reporting agents and payers needing to validate TIN and name combinations before filing information returns should register for TIN Matching through the appropriate e-Services application. Entities filing Forms 1099 or 1098 without an EFIN may apply for an IRIS Transmitter Control Code instead. The TCC is not interchangeable with an EFIN and does not authorize income tax return filing.
Common boundaries and workflow intersections
Multiple services may touch a single client engagement without overlapping in function. A tax return preparer holding an EFIN for electronic filing might also need to retrieve a verification of non-filing letter or a tax return transcript to verify prior year information before preparing the current year return. The EFIN authorizes transmission of the completed return. Retrieving the transcript or non-filing letter requires either proper third-party authorization through Form 2848 or Form 8821 recorded in CAF, or the taxpayer obtaining the document themselves and providing it to the preparer.
When the taxpayer receives an IRS CP14 notice indicating a balance due and wishes to request an installment agreement using Form 9465, the representative with power of attorney for the relevant tax matters may submit the installment agreement request on the taxpayer's behalf. The POA does not eliminate the need for the taxpayer to provide financial information or authorize the agreement terms. The representative facilitates the process within the scope of their authority, but the taxpayer remains the obligor.
No credential or service login substitutes for proper client authorization. Accessing taxpayer information without authorization violates federal law and IRS e-Services terms of use. Sharing login credentials between individuals, firms or systems compromises security and violates service agreements. Each professional must authenticate using their own identity verification and access only the information their authorization permits.
Verifying eligibility before you start
Before beginning an application or requesting access to a new service, review the current IRS eligibility page for that tool. Requirements change, and outdated guidance or assumptions can waste time. Confirm that your professional credentials, firm registration status and authorization instruments satisfy the stated criteria. If you hold multiple roles—practicing as both a return preparer and a reporting agent, for example—recognize that each role may require a separate registration or access path even though you are the same individual.
When technical issues arise or a service behaves unexpectedly, consult the official IRS help resources linked from the service page rather than attempting workarounds or assuming the system is unavailable. Use the current instructions at the official service entry point if sign-in or access is not working. If a service requires an action you cannot complete, contact the IRS through the published support channels for that service.
The e-Services directory is a starting point, not a complete onboarding process. Each linked service provides its own instructions, eligibility criteria and submission requirements. Reading those instructions in full before beginning an application or requesting authorization avoids incomplete submissions and processing delays.
Access-route checklist
Use this as a firm review aid, not a new IRS requirement.
- [ ] Identify the task and the correct IRS service entry point.
- [ ] Check that the intended user meets that service’s eligibility rules.
- [ ] Confirm client authority or the evidence of legal capacity for the matter and periods.
- [ ] Keep account authentication separate from CAF linking and client authorization.
- [ ] Record application or request status without treating a receipt as approval.
- [ ] Use official IRS help for a channel-specific access problem.
Frequently asked questions
Does linking my CAF number in Tax Pro Account automatically authorize me to access all my clients' information?
No. Linking your CAF number associates your individual or business record with your account and allows you to view authorizations the IRS has already recorded for you. It does not create new authorizations or grant access to taxpayer information beyond the scope of those recorded forms. Each client's authorization must be properly executed, submitted and processed before you can use services that rely on CAF authority for that client.
Can I use my EFIN to retrieve transcripts through the Transcript Delivery System?
Eligibility for TDS depends on your status as an ERO or Circular 230 practitioner and whether you hold proper client authorization through a recorded Form 2848 or Form 8821. An EFIN alone does not grant TDS access. Some practitioners may meet both the e-file provider criteria and the TDS criteria, but the EFIN itself is not the authorization instrument for transcript retrieval.
If I am the executor of an estate, do I need a power of attorney to request information from the IRS about the decedent or the estate?
No. As executor, you have legal capacity under your appointment to act in that fiduciary role. Filing Form 56 notifies the IRS of your status for the specified tax matters and periods. You do not need to appoint yourself as an agent under Form 2848 to perform fiduciary duties. However, you must still provide appropriate evidence of your appointment and follow the correct IRS procedures for each type of request or action. The fiduciary role does not bypass eligibility requirements for specific IRS systems or eliminate the need to substantiate your authority when requested.
If your engagement requires reporting-agent authorization, Form 8655 covers the signature, scope, and receipt workflow separately from your e‑Services registration. Agent authorization does not replace tool registration or eligibility checks.
For tax firms
Authorization and transcript workflows intersect with client intake, return preparation and correspondence management. Clarifying which team members hold which credentials, ensuring authorization forms are submitted promptly and tracking when CAF records update reduces delays during filing season and client representation.
Discuss your firm’s authorization, transcript and CRM workflow in a 26T1 demo.