How the 2026 Federal Budget Changes the FIRE Math

Treasurer Jim Chalmers delivered the 2026-27 federal Budget on Tuesday 12 May 2026 under the theme “Resilience and reform.” For most working Australians the headline is a modest tax cut from 2027-28 and a $1,000 instant work deduction from 2026-27. For investors, including most people running an Australian FIRE plan, the headline is harder. The 50% Capital Gains Tax discount is being replaced. Negative gearing on established homes is being wound back. A 30% minimum tax is coming for discretionary trusts.

Last week's blog post, What's changing for super and FIRE on 1 July 2026, covered the legislated super and tax changes that take effect in seven weeks. None of those changed on Budget night. The super system itself was untouched: contribution caps, Division 293, Division 296, the Transfer Balance Cap, preservation age, the Age Pension, and HECS/HELP all stay as previously published. The action in this Budget sits entirely on the non-super side of the balance sheet, which is exactly where most Australian FIRE planners build the bridge between early retirement and preservation age 60.

This post walks through the changes that matter for FIRE planning, with the effective dates that determine whether you have a window to act. The biggest single item is the CGT discount replacement on 1 July 2027, which is also the item with the longest runway. The smaller items are bundled at the end. Everything is cited against budget.gov.au or the originating department. Nothing here is advice; it is a description of what the Budget says.

1. The 50% CGT discount is being replaced (1 July 2027)

Since 1999, Australia's personal Capital Gains Tax rules have offered a flat 50% discount on the nominal gain for any asset held longer than 12 months. Half the gain is added to your assessable income and taxed at your marginal rate. The discount is the load-bearing piece of every Australian FIRE plan that uses ETFs, shares, managed funds or investment property to bridge the gap between early retirement and super preservation age 60.

From 1 July 2027, the Budget paper says, the Government will replace the 50% CGT discount with a discount based on inflation and introduce a minimum 30% tax on gains. The stated intent is that investors only pay tax on the real capital gain, not the inflation portion. The minimum 30% rate stops investors from deferring sales into low-income years (typically the first years of retirement) to access marginal rates below 30%. ABC News reports that pensioners and people on income support will be exempt from the 30% floor. The budget.gov.au tax-reform summary page does not list that exemption itself, so treat it as indicative until the Treasury Laws Amendment Act is published.

Three things matter for the timing:

• Gains arising before 1 July 2027 keep the 50% discount. The new rules apply only to gains made from that date forward.
• New-build property investors can elect either regime. Buy a property classified as a new build under the Treasury rules (the exact definition will be in the legislation) and you can choose the 50% discount or the new inflation-indexed settings when you sell.
• Pensioners and income-support recipients are reportedly exempt from the 30% floor (per ABC News; not in the published budget.gov.au summary). Subject to that, if your only income is the Age Pension at the point of sale, the floor doesn't apply.

How the new tax compares: three worked examples

Imagine you bought $400,000 of broad-market ETFs twelve years ago and sell them for $700,000 in 2030. The nominal gain is $300,000. Suppose CPI compounded at 2.6% a year over that period, so the indexed cost base is roughly $400,000 multiplied by 1.36, or $544,000. The real gain (the portion the new rules actually tax) is $700,000 minus $544,000, which is $156,000.

Now compare three FIRE-planning scenarios:

The pattern is clear. The new system hurts the bridge-phase FIRE planner most, because the 30% floor blocks the long-standing strategy of realising gains in low-income retirement years. It barely changes the maths for high earners selling pre-retirement, because their marginal rate already exceeded what the indexation discount delivers. Pensioners are left alone.

2. Negative gearing limited to new builds

Negative gearing lets a property investor deduct rental losses (interest, depreciation, property expenses minus rent) against other income, typically wages. For an Australian FIRE planner using investment property as part of the wealth-build, this can shave 30 to 47 cents of every dollar of loss off the tax bill.

From Budget night, the rules diverge by property type and when you bought:

The legislation commences 1 July 2027, but the cut-off for grandfathering is Budget night, 12 May 2026. If you buy an established investment property between tonight and 1 July 2027, the new ring-fence applies to that property from the day the law commences. If you bought before tonight, you are grandfathered for the life of the holding.

The Budget paper presents this as a supply-side measure: the new-build carve-out is designed to keep capital flowing toward construction, which is where housing supply actually comes from. Treasury estimates the combined CGT and negative-gearing changes raise $3.6 billion over five years and help around 75,000 first home buyers over the next decade, at the cost of an estimated $2 a week rise in average rents.

For FIRE planners, two practical effects:

• Existing portfolios are unaffected. If you bought your investment properties before tonight, nothing changes. The Treasurer specifically committed to not touching them.
• Future property additions need a re-run.The negative-gearing tax shield was load-bearing for some high-marginal-rate FIRE plans, particularly those counting on wage offsets to cover an interest-heavy early holding period. The new ring-fence (or the new-build pivot) has to be modelled. ProjectFi's property tracker models depreciation, rental income and interest deductions per property; you can flip the deduction destination to gauge the effect.

3. A 30% minimum tax on discretionary trusts (1 July 2028)

Discretionary trusts (sometimes called family trusts) are a long-standing structure used to hold investments and stream income to beneficiaries on lower marginal rates. A FIRE-adjacent example: a high-income earner holds an ETF portfolio in a discretionary trust and distributes the franked dividends to an adult child on a graduate salary, who pays less tax on the distribution than the earner would on the same income personally.

From 1 July 2028, the Government will introduce a minimum 30% tax on discretionary trust income. The trustee pays the tax; beneficiaries still declare the distribution and receive a credit for the tax already paid (similar mechanics to company franking). Where the beneficiary's marginal rate exceeds 30%, the existing rate applies; where it is below 30%, the trust pays the difference to bring the rate up to the floor.

Budget.gov.au confirms there are exemptions but does not publish the full list on the tax-reform summary page. ABC News reports the exemptions as fixed trusts, super funds, deceased estates, charitable trusts, primary-production income from farms, and certain income relating to vulnerable young people. Treat that list as indicative until the Treasury Laws Amendment Act is published; the final scope will be in the Schedule.

Two separate dates matter:

• 1 July 2028. The 30% minimum tax on discretionary trust income commences.
• 1 July 2027 to 30 June 2030. A three-year rollover relief window for restructuring out of discretionary trusts into companies or fixed trusts without triggering CGT. Note the rollover window starts one year before the floor takes effect, and continues for two years after, so a trust can be restructured tax-free during the first two years of the floor era.

4. Three smaller items

Three additional measures touch FIRE-planning territory. None are large enough to change a retirement date on their own, but each shifts a number you might have baked into your projection.

4a. Working Australians Tax Offset (WATO): $250 from 2027-28

The signature cost-of-living piece in this Budget is a new permanent annual offset of up to $250 for workers, which budget.gov.au confirms starts in the 2027-28 income year and covers 13 million Australian workers. The offset raises the effective tax-free threshold for workers by nearly $1,800, from $18,200 to $19,985 (or up to $24,985 when stacked with the Low Income Tax Offset).

Two FIRE-relevant features:

• Wage and salary income only. The budget.gov.au description repeatedly frames the WATO as for “working Australians,” and ABC News confirms it is unavailable to people whose income comes from investments rather than wages. The day you retire and switch off wage income is the day you lose the offset. Confirm the precise eligibility once the Treasury Laws Amendment Act is published.
• Compounds with the legislated Stage 4a and 4b cuts. Stage 4a (FY26-27, already legislated) drops the second bracket from 16% to 15% for a maximum $268 saving per person. Stage 4b (FY27-28, already legislated) drops it further to 14% for a maximum $536. The WATO adds another $250 on top from FY27-28. A $130,000 earner is looking at $786 of total annual tax saving by FY27-28 compared to FY25-26.

For accumulation-phase FIRE planners, this is a modest tailwind that compounds inside super and outside it for decades. For anyone retired or imminently retiring, it is irrelevant.

4b. $1,000 instant work-expense deduction (2026-27 onwards)

From the 2026-27 income year, Australians who earn wages or salary can claim a $1,000 standard work-expense deduction without itemising or keeping receipts. The budget.gov.au Cost of Living page estimates about 6.2 million workers benefit, with an average tax saving of $205.

Marginal effect on a FIRE plan is small. For a $130,000 earner the saving is $300 a year (30% of the $1,000 deduction). For accumulation-phase savers it compounds modestly, similar in magnitude to one Stage 4a cut. The bigger win is administrative: fewer receipts, less time on the tax return.

4c. Private health insurance rebate for over-65s scrapped

The Budget rolls the higher private health insurance rebates for over-65s back to the under-65 rate of 24%. Previously the rebate was 28% for ages 65 to 69 and 32% for over-70s. The change affects an estimated 3 million Australians who, per ABC News reporting, will pay on average between $226 and $255 more per year in premiums.

For retirement-phase FIRE planning, this is a real but modest hit to the budget for anyone planning to keep private cover through retirement. If your projection includes a line for private health (most should, given the Medicare Levy Surcharge for higher-income retirees without cover), bump it by about $250 a year per over-65 adult from the implementation date. The savings are being reinvested into aged care (5,000 additional residential beds annually from July 2027 and reversal of the in-home care funding cut).

What is NOT changing

Worth listing because each of these was speculated about in the run-up to the Budget:

• Superannuation contribution caps. The legislated 1 July 2026 step-ups still apply: concessional cap to $32,500, non-concessional to $130,000, bring-forward to $390,000. Covered in detail in last week's post.
• Division 293 ($250k threshold). No change. The 15% extra contributions tax for high earners stays put.
• Division 296 ($3m super tax). Still commences 1 July 2026 as legislated; the threshold, rate and unrealised-gains mechanics weren't touched by this Budget.
• Transfer Balance Cap. Still steps to $2.1m on 1 July 2026.
• Preservation age. Still 60 for anyone born on or after 1 July 1964. Always.
• Age Pension thresholds. Continue on their normal CPI indexation cadence (20 March and 20 September each year). No Budget-night change.
• HECS/HELP marginal repayment system.The FY25-26 redesign sticks. No changes to bands, rates or indexation.
• Foreign investor ban extended. The two-year ban on foreign nationals buying established homes is extended to mid-2029. Irrelevant for the domestic FIRE audience but worth noting for context.

The strategic timing window

Two real deadlines emerge for FIRE planners:

• 1 July 2027: the CGT discount changeover.Any capital gains crystallised before this date keep the 50% discount. If you were going to sell anyway (rebalancing, paying down a mortgage, downsizing into a smaller risk profile pre-retirement), pre-1 July 2027 is materially cheaper than post. If you were not going to sell anyway, do not let tax timing drive a sale you would otherwise hold; the after-tax outcome of holding usually wins over the after-tax outcome of selling-then-rebuying.
• 1 July 2028: the discretionary-trust floor starts. Rollover relief for restructuring out of discretionary trusts into companies or fixed trusts runs 1 July 2027 to 30 June 2030 (three years). If you hold investments in a family trust where most distributions go to lower-bracket beneficiaries, the rollover window opens twelve months before the floor and stays open for two years after, so there is more time than the headline dates imply. Talk to your accountant well before 30 June 2030.

Neither deadline implies you should restructure a sound plan. The principle remains: hold the assets you would hold for non-tax reasons, in the structure you would use for non-tax reasons, and accept the tax outcome as the consequence. The deadlines matter only when you were already on the verge of a transaction the Budget re-prices.

Bottom line for Australian FIRE planning

Net effect on the median ProjectFi user's plan: a modest headwind. The CGT discount replacement is the biggest single change and bites hardest in the bridge-phase scenario most Australian FIRE planners are building toward. The negative-gearing change affects new property purchases only and is moot for existing portfolios. The discretionary-trust change affects a smaller, higher-income cohort.

Three takeaways:

• The super system remains the most tax-favoured wrapper. Contributions are taxed at 15% (concessional) or 0% (non-concessional), earnings at 15% in accumulation and 0% in pension phase (up to the Transfer Balance Cap of $2.1m from 1 July 2026), and drawdowns are tax-free after 60. None of this changed. For post-preservation income, super is more valuable relative to non-super than it was on Monday.
• Bridge-phase planning needs a re-run.If your plan relied on the 50% CGT discount to make ETF drawdown work in your low-income retirement years, the maths shifts on 1 July 2027. The 30% floor materially reduces the after-tax bridge income from large gains realised post-retirement. Plans built on modest annual realisations (selling enough to fund the year, no more) are less affected; plans built on chunky one-off realisations are hit harder. If the ABC-reported pensioner exemption ships in the legislation, the discount issue partially eases once Age Pension qualifying age is reached.
• Property in the FIRE plan needs a fresh look only if you're still buying. Existing investment properties are grandfathered. New builds keep full negative gearing. Established homes bought after tonight have their negative gearing ring-fenced. If you were planning to add an investment property as part of the bridge, the choice between new build and established home is now also a tax choice.

Sources

• Australian Government, Budget 2026-27 home page. Delivered Tuesday 12 May 2026, themed “Resilience and reform”.
• Australian Government, Tax reform. Source for the CGT discount replacement (effective 1 July 2027), the negative-gearing limitation to new builds, and the 30% minimum tax on discretionary trusts (effective 1 July 2028 with rollover relief from 1 July 2027).
• Australian Government, Cost of living. Source for the Working Australians Tax Offset (WATO, $250 from 2027-28) and the $1,000 instant work deduction from 2026-27.
• ABC News, Federal budget 2026: Winners and Losers. Source for the pensioner exemption from the 30% CGT floor, the private health insurance rebate change for over-65s, the $3.6 billion combined revenue from CGT + negative gearing, and the 75,000 first-home-buyer estimate over a decade.
• ATO, Capital gains tax. Current published rules for the 50% discount. Watch this page for the post-Budget guidance on the inflation-indexed discount formula.
• Services Australia, Age Pension. Current Age Pension thresholds, deeming rates and eligibility rules. Relevant if the ABC-reported pensioner exemption from the new CGT floor lands in the legislation as described.
• For underlying engine constants and how ProjectFi handles multi-FY rule transitions: the methodology page.