Trade, base reform and the minimum tax converge.

The United States opens a sixty-economy tariff front that now names Australia, the CGT and negative gearing Bill clears the House, and the Pillar Two filing machinery locks into place with twenty-five days to the first GIR.

On 4 June 2026 the Office of the United States Trade Representative proposed Section 301 action against sixty economies, finding that each had failed to adequately prohibit or enforce bans on importing goods produced with forced labour. Australia is named in the group. The proposed remedy is a 10% additional tariff on non-exempt products, with an express carve-out for goods that are compliant with the United States-Mexico-Canada Agreement. The proposal follows the March 2026 initiation of sixty investigations under Section 301 of the Trade Act of 1974, is open for public comment, and proceeds to public hearings on 7 July 2026. It does not sit in isolation: in the same week the United States further adjusted its Section 232 metals tariffs, expanding the 15% rate to a wider set of industrial equipment, and a United States trade court declined to stay an injunction against a separate 10% import surcharge. The tariff landscape is both widening and legally unstable.

The friction runs in both directions. On 4 June, the same day as the tariff proposal, Meta accused Australia of breaching the Australia-United States Free Trade Agreement through the proposed News Bargaining Incentive, a 2.25% charge on large platforms' Australian revenue that can be offset by signing news licensing deals worth about 1.5% of revenue, and pointed Washington toward the trade action the United States has taken against other countries that tax its technology firms. The measure is cast as media policy, but its trade and tax character is unmistakable, and it sets a digital-services dispute alongside the forced-labour tariff action as a second pressure point in the relationship. The lesson for Australian-connected groups is that a domestic tax or levy can now invite an external trade response, and that the boundary between tax design and trade exposure has effectively dissolved.

Why it matters. For Australian inbound and outbound groups, this is the point at which the customs function and the tax function stop being separate conversations. A forced-labour enforcement finding now carries a tariff price, which means supply-chain due diligence has become a tax-sensitive control rather than a procurement formality. The duty has to be borne somewhere in the group, and the intercompany pricing of cross-border goods flows is where that cost is allocated. A 10% surcharge layered onto a related-party supply can distort a tested margin, strand a limited-risk distributor with a cost it was never priced to absorb, or convert a routine return into a loss that invites a transfer pricing adjustment from the other side.

What clients should do. Map customs exposure by tariff line and by counterparty, and identify where named-economy sourcing touches goods destined for the United States. Treat forced-labour supply-chain compliance as a documented control, not an assurance. Model the tariff cost into intercompany pricing now, and decide deliberately which entity bears the duty rather than letting it fall by default. Where a group has a United States-facing distribution or procurement hub, the 7 July hearing is a live submission window. Above all, build the customs and transfer pricing analysis together, because a decision taken in one without the other will be wrong in both.

The Treasury Laws Amendment (Tax Reform No 1) Bill 2026, together with the companion Income Tax Rates Amendment (Tax Reform No 1) Bill 2026, passed the House of Representatives on 4 June 2026 and now sits with the Senate Economics Legislation Committee, which is expected to report by 22 June 2026; the Government has signalled that it intends to pass the legislation in the sittings between late June and early July. Schedule 1 replaces the 50% CGT discount for individuals, trusts and partnerships with a cost base indexation method, and the companion Bill imposes a 30% minimum tax on real capital gains, both from 1 July 2027, through extensive amendments to Divisions 102, 110, 112, 114, 115 and Subdivision 960-M of the ITAA 1997. The new rules apply to all gains accruing on or after 1 July 2027, with transitional rules preserving the exemption for gains accrued before that date. The structurally important consequence is that gains accruing on pre-CGT assets after 1 July 2027 become taxable for the first time, and for assets acquired between 1985 and 1999 the discount survives only for gains accrued before that date. Concessions allow individual investors in new residential builds and affordable housing to elect between the discount (50%, or 60% for affordable housing) and the new method.

Schedule 2 quarantines net rental losses on residential dwellings acquired on or after 7.30pm AEST on 12 May 2026, from the 2027-28 income year, through amendments principally to Division 26. Such losses become deductible only against net residential rental income or against gains on residential dwellings, and can no longer shelter salary, business or other investment income, with carve-outs for new dwellings, widely held trusts and complying superannuation entities. Schedule 3 introduces a non-refundable Working Australians Tax Offset of up to $250 from 2027-28, and Schedule 4 introduces a $1,000 standard deduction for work-related expenses under a new section 25-130 from the 2026-27 income year, with consequential substantiation, capital allowance and fringe benefits tax amendments that prevent it being combined with salary packaging. Moving in parallel, the Treasury Laws Amendment (Delivering an Efficient and Trusted Tax System) Bill 2026 also passed the House, removing the $2 threshold for deductible gift recipient donations, modernising trustee tax file number reporting for closely held trusts from 1 July 2026, excluding tobacco and gambling activities from the research and development incentive from 1 July 2025, and lifting the Medicare levy low-income thresholds.

A point that has drawn less attention than the headline rate sits in the transitional loss rules. Under the current law a taxpayer can choose how to apply capital losses across a year's gains, and the tax-effective choice is to absorb them against gains that do not attract the 50% discount, preserving the discounted gains. The Bill reverses that freedom: capital losses must be applied first, on a gross basis, against gains that would have qualified for the 50% discount, broadly on a first-in, first-out basis. The effect is to force losses onto gains that would have been taxed on only half their value, consuming the loss at a lower effective benefit and leaving fully taxed gains exposed. For clients carrying forward capital losses into the transition, the shelter value of those losses falls, and realisation sequencing across 1 July 2027 should be modelled against the mandated ordering rather than the old freedom of choice.

Why it matters. For private clients, and for the executives and shareholders behind multinational groups, the window to 30 June 2027 is the most consequential CGT planning period in the life of the regime. Pre-CGT assets lose their post-2027 shelter, the discount that underpins most realisation modelling disappears, and any structure built on deferring gains into low-rate years must be re-examined against the new 30% floor. The negative gearing change is already operative in the sense that it fixes the acquisition cut-off at Budget time, so residential investment decisions taken now are taken under the new rules whether or not the Bill has received assent.

What clients should do. Refresh valuations and establish the indexation base that will apply from 1 July 2027, because the deemed-acquisition mechanics will determine it. Re-model holdings that rely on the discount, and review trust and private investment structures for the interaction with the new minimum tax. For residential investment, price decisions against the quarantining rules, not the old deductibility. Where a client has a view worth putting to Government, the Senate inquiry is the live channel, with the committee due to report by 22 June.

The consolidated commentary to the global minimum tax rules, released on 28 May, was followed within days by the machinery that turns it into an operating compliance system. Across the past week, country-by-country information return exchange agreements under the relevant multilateral competent authority framework were signed or formally approved by several jurisdictions; Portugal gazetted the European directives that incorporate the crypto-asset reporting framework and extend administrative cooperation to the global minimum tax, complete with penalties for non-compliance; the United Kingdom updated its list of in-scope territories and taxes; Malaysia issued further clarification of its filing requirements; the European Commission confirmed that the income inclusion rule of Cyprus is qualified; Belgium gazetted its domestic minimum top-up tax return form for assessment year 2024; and the Bahamas proposed instalment payment of its domestic minimum tax. The interpretive text and the exchange plumbing have arrived in the same fortnight.

Why it matters. The compliance question has changed shape. A month ago it was whether the rules and safe harbours would settle in time. Now they have, and the operative risk is mechanical: whether every constituent entity in a group has a filing path and an exchange path that actually connect. Central filing by an ultimate parent only relieves a local obligation where an exchange agreement is in force between the two jurisdictions, and the agreements signed this week change that map. A constituent entity sitting in a jurisdiction outside the exchange network as at the filing date keeps its local lodgement obligation, and a group that assumed central filing would cover it may discover a gap with penalties attached.

What clients should do. For December 2024 year-ends, the first Australian lodgement is on 30 June, twenty-five days away, with the domestic minimum tax return following on 30 July under the thirty-day administrative deferral. Confirm the Designated Local Entity election where more than one Australian entity is in scope, and confirm the central filing election where the ultimate parent jurisdiction will lodge. Map each non-Australian constituent entity to its filing obligation and to current exchange coverage, refreshed for this week's signatures. Re-run the transitional country-by-country safe harbour against the consolidated commentary and document the conclusion in the lodgement workpapers, because the transitional penalty relief is scoped to good-faith first-year errors, not to documentation that was never prepared. Two practical traps deserve attention for the end-of-July window. First, central preparation is not the end of the Australian obligation: where the ultimate parent jurisdiction has no qualifying exchange agreement with Australia, the Australian entity must lodge locally, and even a centrally prepared return must be converted into the prescribed GIR XML schema before it can be filed, which takes time and tooling that local filers should secure now. Second, the available relief is asymmetric: the Commissioner can defer the domestic minimum tax return and can decline to impose penalties on a late GIR, but cannot extend the statutory GIR due date itself, so a penalty remission is not a substitute for meeting the lodgement date.

On 1 June 2026 the OECD released a public consultation proposing to rebuild Chapter VII of the transfer pricing guidelines, which governs intra-group services. The draft reorganises the chapter around accurate delineation of the actual transaction, applies a more refined version of the benefit test, adds guidance on interconnected transactions, and introduces a dedicated section on evidentiary and documentation expectations. Most significantly for pricing, it expressly recognises that more complex methods, including the profit split, may be appropriate where the parties make unique and valuable contributions or share economically significant risk, rather than defaulting to a cost-based charge. The arm's length baseline that most groups apply to management fees and shared services is, in other words, under active revision.

Why it matters. Management charges, centralised functions and shared services are the most common related-party flows for Australian-connected groups, and they are usually priced on cost-plus with a benefit test applied lightly. A shift toward delineation-first analysis and value-based pricing raises the evidentiary bar for those charges and opens the door to profit-based methods where a service is genuinely high-value. The change also interacts with the Australian record-keeping framework and the simplified approach to low-value-adding services, and it matters wherever a service charge sits alongside an embedded right to use intangibles, where characterisation as a royalty carries withholding consequences.

What clients should do. Inventory intra-group service flows and test whether a cost-plus characterisation still holds once the transaction is accurately delineated. Strengthen benefit-test evidence, which remains the first point of attack in an audit. Identify any high-value services where a profit-based method may be both more defensible and more accurate. Align documentation now, ahead of the automatic transfer pricing penalty regime that applies from 1 July 2026, so that the support exists before, not during, a review.

Periodic cross-border payments held assessable. In a decision handed down on 28 May ([2026] FCAFC 75), the Full Federal Court allowed the Commissioner's appeal and held that roughly $33 million received by an Australian resident over a decade from a Vanuatu supermarket business was assessable as ordinary income, not gifts from a sibling. The Court found the primary judge's contrary conclusions glaringly improbable on the whole of the evidence and held that the taxpayer had failed to discharge the onus of proof under section 14ZZO. The case is a sharp reminder that regular cross-border payments to Australian residents carry ordinary-income and onus-of-proof risk, whatever the asserted family characterisation.

Is Bitcoin property? The Commissioner intervenes in the High Court. The Commissioner has been granted leave to intervene in a private dispute on appeal to the High Court that turns on whether a holding of Bitcoin is property at general law. The administrative position since 2014 treats Bitcoin as a CGT asset, and potentially trading stock, and the Commissioner has noted that a finding that a Bitcoin holding is not property could unsettle the CGT base. The outcome will matter for the characterisation of digital assets across the tax law.

Research and development promoter penalties. On 28 May the Federal Court found that a promoter had contravened the promoter penalty provisions (section 290-50 of Schedule 1 to the Taxation Administration Act 1953) across twelve research and development tax exploitation schemes ([2026] FCA 658), with penalty to be fixed at a later hearing. It lands alongside a renewed compliance posture on the research and development incentive, where advisers are being asked to police eligibility and taxpayers are being reminded that they bear the consequences of adviser conduct.

Superannuation guarantee: dentist was an employee. On 22 May the Administrative Review Tribunal upheld about $70,000 of superannuation guarantee charge against a dental clinic ([2026] ARTA 895), finding that a practitioner engaged on a 40% commission was an employee within the extended definition in section 12(3) of the Superannuation Guarantee (Administration) Act 1992. Commission-based engagements in professional practices remain exposed where the contract is wholly or principally for the individual's labour.

Queensland landholder duty: reconstruction exemption narrowed. The Queensland Court of Appeal allowed the Commissioner's appeal on the corporate reconstruction exemption, construing the group property requirement as fixed at a single first-ownership point in time rather than offering alternative qualifying moments. Intra-group restructures that touch Queensland land should be tested against the narrower reading before relying on the exemption.

Whistleblowing regimes under review. On 2 June Treasury opened a consultation on the tax and corporate whistleblowing regimes introduced in 2019, examining their scope, operation and effectiveness. Submissions close on 29 July 2026.

Research and development incentive redesign. The Budget 2026 changes, proposed to commence from 1 July 2028, would limit eligibility to core research and development activities, confine the refundable offset to companies in their first ten years, lift the refundable turnover threshold for small and medium entities to $50 million, and raise the maximum expenditure threshold to $200 million. Exposure draft legislation and a consultation are expected, and the trade of breadth for intensity will leave many programs with significant supporting activity worse off.

A working view of the registration, filing and exchange milestones now in play for in-scope groups. Confirm each entity's obligation against its local rules; central filing relieves a local obligation only where an exchange agreement is in force. Where it does not, the Australian entity must file locally in the GIR XML schema even if the return is prepared centrally, and the Commissioner can remit late-filing penalties but cannot extend the GIR due date.