Compliance
Compliance Overhaul for Closely Held Trusts: TFN Withholding Reporting to be Mandatory from Mid-2026
From 1 July 2026, closely held trusts will face stricter reporting on beneficiaries’ TFNs—if a beneficiary hasn’t provided theirs, trustees must withhold tax at the top rate and comply with annual reporting.
By NomadicTax Research Team • 5 min read • June 3, 2026
## What’s Being Proposed?
Under the ATO’s **Modernisation of Tax Administration Systems (MTAS) Phase 2**, the law reform will introduce **mandatory beneficiary Tax File Number (TFN) reporting** for *closely held trusts*, embedded in the trust return starting **1 July 2026**. ([softwaredevelopers.ato.gov.au](https://softwaredevelopers.ato.gov.au/MTAS220260121?utm_source=openai))
If a beneficiary is presently entitled to trust income and hasn’t quoted their TFN, the trustee must withhold tax at 47%. The reporting changes aim to consolidate the withholding obligations and reporting into the annual trust tax return. ([austax.tools](https://austax.tools/tax-insights/trust-tfn-withholding-annual-reporting-2026/?utm_source=openai))
## Implications & Compliance Challenges
- **Higher withholding risk**: Beneficiaries without TFNs will immediately become subject to high withholding rates, which can tie up cash and create timing mismatches.
- **Data collection**: Trustees will need to ensure they collect TFNs from all beneficiaries, maintain accurate records, and possibly follow up with non-quoting beneficiaries to avoid withholding.
- **Software & system readiness**: The ATO’s MTAS infrastructure must support the embedding of the requirement in the trust return, including new labels (like “No TFN Provided”) and possibly trust indicators. Trustees using tax software will need to ensure updates are in place. ([softwaredevelopers.ato.gov.au](https://softwaredevelopers.ato.gov.au/MTAS220260121?utm_source=openai))
## Actionable Steps for Trustees Now
- Conduct a **TFN audit** of all beneficiaries to identify missing TFNs. Reach out proactively to get them.
- Update trust deeds and distribution resolutions to include clauses or policies for what happens if a TFN isn’t provided.
- Confirm that accounting and tax software (or your tax agent’s software) will be ready to support the new reporting labels, statements of distribution with trust indicators, and annual reporting.
- Budget for cash flow mismatches: when tax is withheld at 47% it may exceed the beneficiary’s actual liability temporarily, leading to refunds only after settlement at tax time.
## Example Scenario
A family discretionary trust has 4 individual beneficiaries. At 30 June 2026:
- Two have provided their TFNs.
- One has not.
- One is a minor without legal capacity to quote a TFN immediately.
Here’s how things change from 1 July 2026:
- For undisclosed TFN beneficiaries, trustee must withhold 47% of their distribution entitlements at the time they are declared.
- On the trust return, include a “No TFN Provided” label for those beneficiaries and numbers in the Statement of Distribution.
- Trustee lodges this report as part of annual trust return—no need for separate quarterly or ad-hoc reporting.
## Key Takeaways
- The proposed change is not yet enshrined in law, but it has clear policy momentum under MTAS.
- Trusts that fail to adapt may find themselves facing unexpected high withholding or compliance penalties.
- For closely held trusts, ensuring TFNs are collected and staying on top of reporting will become non-negotiable.
> **Action point:** As trustee, reach out to beneficiaries to collect missing TFNs, confirm your software is ready, and map out cash flow impacts of the withholding rule. Delay is risk if your trust has undisclosed TFN beneficiaries.