Business Tax Account for payers: who can be the Designated Official, what the IRS checks, and what only the DO can do

The roles

"An individual who wishes to access BTA on behalf of an entity must hold one of the roles described" in the manual, and "The authorization steps must be followed for each separate entity an individual wishes to access" (IRM 10.10.4.3, Mar. 5, 2025). There are four. An Individual Partner or Individual Shareholder with a Schedule K-1 on file gets a view-only look at the partnership's or S corporation's transcripts for the years they held an interest, and may make payments, nothing more. A Designated Official has full access and controls everyone else's. A Designated User has whatever the DO assigns.

"To have full access to BTA each entity must have at least one designated official. A DO is an individual authorized to legally bind the entity pursuant to state law or other applicable law ... Only a DO in BTA has the authority to add, modify or remove DUs, to add, or remove access to BTA features or to modify tax period access for DUs" (IRM 10.10.4.3.3). Every entity except a sole proprietorship may have more than one DO, and an entity cannot be a DO; the role belongs to a person.

Who can be the Designated Official

The manual is explicit that the DO is not the same as a tax representative: the term "does not refer to the entity's legal representative" under a power of attorney, and for partnerships it "does not refer to" the partnership representative under IRC 6223. A CPA or payroll provider does not become the DO by holding a Form 2848 or 8655. They can be made a Designated User by the DO.

For a sole proprietorship, "The sole proprietorship must have an EIN on record with the IRS for an individual to access BTA. It is not necessary that the sole proprietorship issued a W-2 or 1099 to obtain access to BTA. But an individual taxpayer filing a Schedule C ... with an SSN cannot access BTA for that entity" (IRM 10.10.4.3.3). For a single-member LLC, the answer depends on whether it is disregarded or taxed as a corporation.

The CP 311 PIN and the address of record

Two letters go to the address the IRS has for the entity, not to the person: the PIN, and a separate notice telling the entity that someone has asked to be its DO. That is a control, and it has a consequence. If the address of record is stale (a former office, a former payroll provider, a registered agent that forwards slowly), the PIN goes there, and the 30-day window runs from the request. Fixing the address of record first, with Form 8822-B, is often the real first step; the same stale address is what delays a Letter 147C and the notices described on the business name change checklist.

What the IRS checks

For a corporation or exempt organization: "The individual requesting DO status enters the entity's information and their title ... IRS systems will check the relevant Form W-2 on file to confirm employment of the individual requesting DO status by the entity. If no W-2 is on file for the most recent tax year the individual requesting DO status may still self-attest to their authority to act on behalf of the" entity, and "will also attest they are an employee" (IRM 10.10.4.3.3). For a corporation "the individual does not need to upload documents." An exempt organization and a partnership must upload proof: minutes, resolutions, bylaws or articles for the organization; the partnership agreement "and any amendments" or "Other documents as presented to external agencies or financial institutions that show the individual can legally bind the entity" for the partnership, whose general partner must also have a Schedule K-1 on file "for the most recent tax year."

The W-2 check is worth knowing about for two reasons. An officer paid through a PEO, whose W-2 carries the PEO's EIN, will not match and will be asked to self-attest. And an outside director or an unpaid officer of a small corporation has no W-2 at all and goes the same route. Self-attestation is permitted; it is a statement under the e-signature rules, and the manual's revalidation steps below are the check on it.

Designated Users, and what they cannot do

"A DU is an individual who will have authorization to perform certain functions on behalf of the entity within BTA as selected by the DO. A DU, through their electronic signature, must accept or reject access to BTA based on the role assigned by the DO within 30 days" (IRM 10.10.4.3.4). The DO supplies the user's name and SSN or ITIN, the tax periods, the tax forms and the features. The designation is a disclosure consent under IRC 6103(c), but "will not be captured in the CAF database," and an existing 2848 or 8821 on the CAF is not used to create a DU. The two systems do not talk to each other.

So a tax manager added as a DU can see the Form 945 transcript and the balance; requesting the 147C, reading the notices, setting up a payment plan and adding the next user are DO functions. Plan for at least two DOs, so a departure does not lock the account.

Revalidation and removal

"At least annually, a DO must revalidate their authority to act on behalf of the entity to retain access" (IRM 10.10.4.4). "A DO must revalidate a DU every six months ... DU access shall be automatically revoked if the DO does not revalidate the DU by this six-month deadline" (IRM 10.10.4.6). Removal of a DO is done in BTA by the DO or another DO; "Only a DO can remove a DU. Any DO can remove any DU. DUs cannot remove themselves or other DUs," and a DU added by a departed DO remains "a DU of the entity," visible to the remaining DOs (IRM 10.10.4.8). Put the six-month revalidation on the same calendar as the IRIS TCC application's 30-day update rule, described on the TCC lifecycle; both lapse quietly.

Why it matters for a payer

• Form 945 and the civil penalty module. The account view and the transcript show deposits, the TC 150 posting and any penalty; what the codes mean is on reading a business account transcript.
• Letter 147C on demand. Requesting the EIN confirmation letter is a DO-only feature, which is faster than the phone queue described on the 147C page.
• Notices. Viewing correspondence is DO-only, so the person who sees the CP2100 or the penalty notice online must be a DO.
• Separation from the TCC. BTA access and the IRIS TCC application are different systems with different people on them: Responsible Officials on the TCC, DOs and DUs in BTA. Neither grants the other.
• Not for TIN Matching. The IRS TIN Matching program runs through e-Services under its own application; BTA does not replace it.

Questions people ask