Compliance
Compliance Focus: Penalty & Interest Regime Strengthened for Tax Avoidance and Underpayment
From July 2026 new rules will widen penalties and interest charges especially for large taxpayers and tax scheme mischaracterisations—learn what’s changing and how to prepare ahead.
By NomadicTax Research Team • 5-8 min read • November 24, 2025
## What’s Changing in Penalty & Interest Regime
The Australian Government has introduced amendments intended to **strengthen tax penalty and shortfall interest charge provisions**. Key changes will take effect from **1 July 2026**, targeting areas like mischaracterisation or undervaluation of interest or dividends where withholding tax applies. Also applying from **1 July 2026**, tax scheme penalties will apply even when taxpayers are in a **loss position**.([ato.gov.au](https://www.ato.gov.au/about-ato/new-legislation/in-detail/businesses/strengthen-penalty-and-shortfall-interest-charge-provisions?utm_source=openai))
One part of these measures—extending shortfall interest charges to repayments of **over-claimed tax offsets** for assessments—that affect assessments made on and after **1 April 2025** is now law.([ato.gov.au](https://www.ato.gov.au/about-ato/new-legislation/in-detail/businesses/strengthen-penalty-and-shortfall-interest-charge-provisions?utm_source=openai))
## Implications for Large Taxpayers and Corporates
- **Risk of larger penalty exposure**: Misstatements around dividends or interest could attract penalty even if taxpayer suffered a net loss.
- **Focus on withholding tax compliance**: Areas like dividend payments, interest paid to overseas persons, royalties will be under scrutiny to ensure accurate valuation and characterisation for withholding.
- **Tax offsets need careful audit**: Over-claimed offsets will attract shortfall interest charge if later reduced by amended assessment.
## How to Ensure Compliance & Minimise Risk
- Regularly review and validate your interest, dividend, and royalty transactions to align with ATO’s expectations for withholding obligations and transfer pricing.
- For tax offsets claimed (e.g., franking credits, R&D offsets), maintain documentation so offset amounts can be supported in event of audit or amendment.
- Where involved in aggressive tax scheme design, consider seeking independent assurance or rulings in advance.
## Example Situations & Outcomes
**Scenario 1:** Company A invested in overseas operations and transfers dividends to parent company but undervalued the withholding tax obligations. Under new rules, from 1 July 2026, it may face penalties even if overall profit was negative, due to mischaracterisation.
**Scenario 2:** Taxpayer B claimed a refundable tax offset for R&D credits. Later ATO amends the assessment, reducing the offset. For offsets claimed prior to that, shortfall interest charge applies to the over-claimed amount from the date it became payable.
## Practical Steps to Take Now
- Conduct comprehensive reviews of your financial records, particularly interest, dividends, royalty payments, and offset claims.
- Engage transfer pricing and withholding tax specialists to audit and adjust contracts where value may be mischaracterised.
- Design internal controls so that any claims of offsets are verified and supported by contemporaneous documentation.
- Consider whether structuring in advance (pre-July 2026) for major transactions makes sense, given upcoming stricter rules.