Company, Trust and Partnership TFN: Apply or Find

A company TFN belongs to the company, separate from its directors’ numbers. Companies, trusts and partnerships that lodge returns need their own TFN. Apply for a new entity through the Australian Business Register, and recover an existing number through secure records.

Use the TFN guide to distinguish applications, recovery and handling across the client group.

Does a Company Need a TFN

Yes, a company that must lodge a tax return needs its own Tax File Number (TFN). The Australian Taxation Office (ATO) identifies the company’s return using that number. Trusts and partnerships that lodge also use their own TFNs.

An Australian Business Number (ABN) identifies a business for business dealings. It does not replace the TFN on an income tax return. Government guidance on business TFNs separates the entity number from the owner’s personal number.

A newly established company, trust or partnership might receive its ABN while its TFN application is still being processed. That temporary position does not remove its return obligations. An ABN confirmation is not proof that the TFN notification has arrived.

Keep a corporate trustee and its trust separate in your records. The trust’s return uses the trust’s TFN. Assess any return obligation of the trustee company in its own capacity before treating it as another trading company.

Sole Traders Use Their Individual TFN

A sole trader uses their individual TFN and reports business income on their individual tax return. There is no separate sole-trader business TFN.

When a client asks for a business TFN, first confirm the entity. They might mean an ABN or be moving from sole trading to a company. A new company needs its own registrations. The owner’s personal TFN stays with the owner.

When the Entity Already Has a TFN

Recover a previously issued company, trust or partnership TFN instead of lodging another application for the same entity. There is no public company TFN lookup. ABN Lookup and ASIC searches cannot supply the private number.

Ask whether the entity has lodged before and whether its previous accountant holds the number. Use the secure TFN recovery guide for the records and authorised ATO enquiry path. Confirm the caller’s authority before discussing the entity’s tax record. A director’s personal TFN does not become the company’s TFN because the director has lost its paperwork.

Applying for a Company TFN

The Australian Business Register (ABR) accepts company TFN applications after the company exists. The Australian Securities and Investments Commission (ASIC) issues its Australian Company Number (ACN) when it registers the company.

Collect the setup information before opening the application. Tax Genie’s separate entity registration form collects what your practice needs for the registration. Your practice uses those details to apply through the official channel, which issues the TFN.

1. Confirm the company’s legal name and ACN against its registration records. Collect its registered office, business location and postal address.
2. Identify its authorised contact and collect directors’ details and the public officer’s details. For a combined ABN application, include the shareholders required for the company type.
3. Choose the ABR business TFN application. A business TFN can be requested alone or with an ABN. The ABN application guide covers the wider registrations.
4. If your practice applies as the registered tax agent, use ABR tax professional services with Digital ID. Supply your agent registration number and the company details.
5. Check the applicant entity and postal address before lodging. Retain the application reference in the company’s restricted tax file.

The ABR says the TFN notification letter should arrive within 28 days of receiving the completed application. If it has not arrived after that period, follow the ATO contact link on the ABR application page. Keep the reference ready. Do not lodge a duplicate application while waiting.

For incomplete or mismatched details, compare the application with the company records and the associates’ ATO records. Correct the mismatch through the official enquiry route. Once the letter arrives, match its entity name to the company before recording the TFN.

Trust TFN Application

The trustee applies for the trust’s TFN, or authorises the registered tax agent to apply. Establish the trust before requesting its number. An intended trust name and an unsigned draft deed do not establish the trust.

1. Collect the trust’s legal name, signed deed and the date it was signed. Obtain evidence that the settlement occurred, such as the settlement receipt or record.
2. Confirm the trustee shown in the deed and their authority to instruct your practice. Collect the trustee’s details and TFN securely, with company identifiers for a corporate trustee.
3. Use the ABR TFN route, including the combined ABN route where the trust carries on an enterprise and is entitled to an ABN.
4. For a paper application, including a trust without an ABN, use the ATO’s entity TFN application, NAT 3799. Follow its evidence instructions and have an authorised individual sign the declaration before mailing it.

Prepare the deed and settlement records using the family trust setup guide. The ABR trust guidance explains the trustee’s responsibility and the trust’s ABN entitlement. Record the issued TFN against the trust, with the trustee’s details held separately.

Partnership TFN

A partnership that lodges a partnership return needs its own TFN. Each partner continues using their own number for their individual or entity tax affairs.

1. Confirm who the partners are and collect the partnership agreement or other records establishing the partnership.
2. Collect each individual partner’s name, date of birth and position. The ABR accepts their TFN or residential address. For an entity partner, collect its legal name and registration identifier, with its TFN or address and formation details.
3. Request the partnership TFN with its ABN through the appropriate ABR business or tax-agent route. Use the partnership as the applicant.
4. Save the application reference and match the notification to the partnership before setting up its return record.

The ABR associates guidance identifies the partners required for each partnership type. A missing partner or mismatched name can prevent the records from being matched.

An Individual Needs Their Own Application Path

An individual client, including a sole trader, uses the individual TFN application path. The combined ABN application does not issue their personal TFN.

NAT 1432 is the ATO’s Tax file number - application or enquiry for individuals. Its enquiry function covers an individual who is unsure whether they have a TFN or cannot find it. Company, trust and partnership applications use the separate entity route.

Route the client to the individual TFN application guide for the appropriate online, Australia Post or paper route. Do not send a director to an individual application form to obtain the company’s number.

Collecting an Entity TFN at Onboarding

Ask the entity client for its TFN through a secure channel, a recent notice of assessment where available and the previous accountant’s contact details. A new entity will have no assessment yet. Record its application status instead of treating that missing document as evidence of a lost TFN.

Use the professional clearance guide when contacting the previous accountant. Once you have the number, the ABN and TFN checking guide explains what a format check can establish.

Keep TFNs in restricted records protected by encryption and individual staff sign-in. Limit access to staff who need the number for authorised tax work. Avoid copying it into routine emails or shared task notes.

The OAIC’s TFN guidance makes a distinction that matters here. The Privacy (Tax File Number) Rule 2015 protects individuals’ TFN information, including a sole trader’s personal TFN. It does not cover the entity TFN of a company, partnership or trust. Taxation law still protects entity TFNs. Personal TFNs collected for directors, trustees or partners remain within the individual rule.

Tax Genie keeps every collected TFN hidden until authorised staff reveal it, and logs every reveal. TFNs stay out of emails, exports and generated documents. Every TFN is removed before AI reviews the client’s form. See Tax Genie’s TFN handling for the collection and access details.

Keep the company, trust and partnership records distinct. Mark each as holding a recovered TFN or awaiting a new application, so the first return uses the right entity’s number.