Loss carry-back & refundability — demystified

Does this affect me?

Only if you run a Pty Ltd company (a registered company, not just an ABN). Both reforms are company-only.

Run a company under $1B turnover and had a bad year? Yes — you can claim back tax you paid in the last 2 years.
Pre-revenue startup in your first 2 years? Yes (from 2028) — your losses can convert to cash up to a wage-based cap.
Sole trader / tradie on an ABN? No — this doesn't apply. Your losses work differently (carried forward against your own future income via your personal tax return). The Budget's $1,000 instant deduction and tax cuts are where you'll see your wins instead.
PAYG employee? No direct impact, but stronger small-business cash flow generally means more job security in tough years.

TL;DR

The 2026-27 Budget locks in two cash-flow reforms for small and growing companies:

Permanent 2-year loss carry-back for companies up to $1 billion turnover, from income years after 1 July 2026. Benefits up to 85,000 companies/year. Reduces receipts by $2.3 billion over 5 years.
Loss refundability for startups in their first 2 years, from 1 July 2028. Capped at FBT + WHT on employee wages. Supports ~25,000 new businesses/year. Increases refundable-offset payments by $410 million over 5 years.

Anyone claiming "small business got nothing in this budget" is wrong. 85,000 companies get immediate cash-flow relief; 25,000 startups get refundability they couldn't access before.

Jargon decoder:

Loss carry-back = if your company makes a loss this year, you can apply that loss against last year's (or the year before's) profit and get a refund of tax you already paid. Cash in the door now, not "saved against future profits".

Company = a Pty Ltd business with its own ABN and ACN that pays company tax separately from its owner. Different from a sole trader (just you trading under your own ABN).

Refundability = the tax office actually pays cash to your business, instead of just letting the loss sit on the books waiting for future profits.

FBT + WHT = Fringe Benefits Tax + Withholding Tax. The two taxes employers pay on staff wages — used as the cap for how much loss refund a startup can claim.

Turnover = total business revenue for the year (sales before subtracting costs).

What's NOT in this budget

A blanket cash-back for all losses — both schemes have eligibility rules.
Loss carry-back for sole traders — these reforms apply to companies (Pty Ltd structures).
An indefinite carry-back window — capped at 2 prior income years.
Refundability for all companies — startups only (first 2 years).
A guarantee of tax refunds — claims are subject to tax-due-paid in prior years.

What IS in this budget

Reform 1 — Permanent 2-year loss carry-back

Item	Detail
Eligibility	Companies with aggregated turnover ≤ $1 billion
Effective from	Income years commencing on or after 1 July 2026
Carry-back window	2 prior income years
Mechanism	Loss applied against prior year's taxable income → refund of prior tax paid
Companies benefiting	Up to 85,000 / year
Receipt impact	-$2.3 billion over 5 years
Permanence	Permanent (was temporary under COVID-era settings)

Reform 2 — Loss refundability for startups

Item	Detail
Eligibility	Companies in their first 2 income years
Effective from	1 July 2028
Refund cap	Total FBT + WHT paid on employee wages
Mechanism	Eligible startup losses refunded up to the cap
Startups benefiting	~25,000 / year
Refundable-offset payments increase	+$410 million over 5 years

Why both reforms matter

Loss carry-back lets a profitable company that had a bad year claw back tax it paid in the prior 2 years — cash in the door fast, no waiting to "use" the loss against future profits.
Loss refundability for startups lets pre-revenue startups convert losses into cash up to the FBT+WHT cap — without needing taxable profits or a parent company to absorb the loss.

Together they cushion the cash-flow vulnerability that kills good companies during downturns or pre-revenue stages.

Key dates

Event	Date
Loss carry-back (companies ≤$1B turnover)	Income years from 1 July 2026
Loss refundability (startups, first 2 years)	From 1 July 2028
First claim window	2027 tax returns (carry-back); 2029 tax returns (refundability)

Worked example — TradeCo, 60-employee construction firm, $25M turnover

2025-26: taxable profit $4M → company tax paid: $1M.
2026-27: project slumps, taxable loss $1.5M.
Under the new permanent carry-back: TradeCo carries the $1.5M loss back to 2025-26.
Refund of company tax: ~$375,000 (25-30% of $1.5M).
Cash hits TradeCo's account fast — covers payroll through the slump.

Worked example — NimbleAI, 18-month-old SaaS startup, no revenue

2028-29: paying 6 staff at total wages ~$700,000. FBT+WHT paid: ~$170,000.
Operating loss of $1.2M.
Under new startup refundability: NimbleAI can claim a refund of losses up to its $170,000 FBT+WHT cap.
Cash in: ~$170,000 — equivalent to ~2 months of runway.
Without refundability, the loss just sits unused on the balance sheet.

Worked example — GiantCorp, $5B turnover, $50M loss in 2026-27

Above the $1B turnover cap → NOT eligible for loss carry-back.
Loss is carried forward under existing rules.
No cash refund — same as today.

Myths vs reality

Myth 1: "Small business got nothing in this budget" — FALSE

85,000 companies benefit from carry-back; 25,000 startups benefit from refundability. Real cash impact for both groups.

Myth 2: "It's a tax cut for big business" — FALSE

The carry-back is capped at $1B turnover. Companies bigger than that don't qualify.

Myth 3: "Sole traders get the same deal" — FALSE

These reforms are for companies (Pty Ltd structures). Sole traders work through individual tax returns — different mechanism. (Sole traders have their own write-off + WFH deduction reforms — see related articles.)

Myth 4: "All losses are cash-refundable now" — FALSE

Loss carry-back is refundable but only against tax already paid in 2 prior years.
Startup refundability is capped at FBT+WHT paid on employee wages.
Neither gives unlimited cash refunds.

Myth 5: "The startup refundability is unlimited" — FALSE

Capped at FBT + WHT on employee wages — meaning startups with low payroll get smaller refunds than startups with bigger teams. By design.

Myth 6: "It's effective today" — DEPENDS

Loss carry-back: income years from 1 July 2026 — so first claims hit 2027 returns. Startup refundability: from 1 July 2028.

Myth 7: "Carry-back was permanent before, now it's temporary" — FALSE

Other way around. It was temporary under COVID-era settings; this makes it permanent.

Myth 8: "Companies will manufacture losses to claim refunds" — DEPENDS

The ATO retains all existing anti-avoidance powers. Genuine commercial losses qualify; arrangements designed primarily to access the refund don't.

Myth 9: "The $2.3B figure means the policy is a giveaway" — MISLEADING

The $2.3B is the receipts reduction over 5 years — i.e., what stays in business hands instead of coming to Treasury. Total receipts forgone is small against ~$100B+ corporate tax base.

Myth 10: "It's effectively a startup subsidy" — TRUE

For the refundability piece, yes — it's a targeted cash subsidy for early-stage companies. That's the policy intent.

But what if...

...I had a bad year as a sole trader — can I use this? No. Loss carry-back is companies only (Pty Ltd). As a sole trader, your business losses get applied against your other income (wages, investment income) in the same year via your personal tax return — and any leftover loss carries forward to future years. Different system. If you're considering incorporating, talk to your accountant about whether the cash-flow upside is worth the company-tax overhead.

...I'm a tradie with an ABN — does this help me? Depends on your structure. Just an ABN as a sole trader? No. Trading through a Pty Ltd company (you'd have an ACN too)? Yes — if your company made a loss this year and paid tax in the last 2 years, you can claim it back. Check your business name registration to be sure which structure you're in.

...what counts as a "loss"? For a company, it's when your tax-deductible expenses (wages, materials, rent, depreciation) exceed your taxable income for the year. It's an accounting loss, not just "I had a quiet year". Your accountant calculates it for the tax return.

...how fast does the cash actually arrive? After lodgement of the tax return — usually within weeks once the ATO processes it. Not instant, but a lot faster than carrying a loss forward and waiting years to use it against future profits.

...what if I made a loss but didn't pay tax in the prior 2 years? Then there's nothing to refund — carry-back only refunds tax actually paid. The loss carries forward against future profits instead. Same outcome as before the reform.

...does the ATO see this as a red flag? No more than usual. Genuine commercial losses are fine. The ATO retains its general anti-avoidance powers (Part IVA) for arrangements designed primarily to harvest refunds — see Myth 8.

Where genuine debate lives

Whether the $1B turnover cap is the right line — UK uses smaller thresholds, US has no cap.
Whether 3-year carry-back would be better than 2 (Canada uses 3).
Whether startup refundability should be capped at FBT+WHT or at a fixed dollar amount.
Whether the 1 July 2028 startup refundability start is too far away — many advocates wanted immediate effect.

A useful filter

Company or sole trader? This is companies-only.
Loss-making this year + profitable in prior 2? Carry-back.
Loss-making startup in first 2 years? Refundability (from FY 2028-29).
Above $1B turnover? Not eligible for carry-back.

Sources

Budget Paper 1 — lines 2010-2050 (loss carry-back + refundability)
Theme 03 — Productivity
Theme 04 — Tax Reform
Factsheet — Backing Small Business

85,000 companies are getting tax refunds you didn't hear about