Why a million more retirees are being dragged into income tax—and what it means for your nest egg

You have to feel for anyone who thought retirement meant waving goodbye to the taxman. The latest official forecasts landed like a thud this week, and they are enough to put anyone off their morning cuppa. We are looking at 600,000 more pensioners being dragged into income tax as early as next year, a figure that swells to a cool one million by the end of the decade.

How the age pension finally swallowed the tax threshold

The maths here is brutally simple. The tax-free threshold—the amount you can earn before paying a penny of income tax—has been welded to $18,200 since 2021 and is now frozen solid until at least 2031 thanks to Rachel Reeves’ November Budget. Meanwhile, the age pension, protected by the triple lock, just keeps climbing. This financial year, the full single age pension sits at about $28,000, creeping ever closer to the limit. But by April 2027, even a minimum 2.5% rise shoves it over the edge.

At that point, someone with only the age pension would technically owe the taxman about $58 a year. The Chancellor has made sympathetic noises, promising that those whose sole income is the age pension won’t actually have to write a cheque during this Parliament. But the mechanism for that promise is about as clear as mud, and the relief only lasts until the next election. It is a stay of execution, not a pardon.

The unfairness baked into the system

Here is where it gets properly messy. Sir Steve Webb, the former Pensions Minister who now spends his days answering desperate questions from savers, points out the obvious flaw: the exemption only helps people with literally no other income. If you scrimped and saved for a small superannuation pension that pays out, say, a hundred bucks a week, you lose the protection. You are suddenly a taxpayer, while your neighbour who never saved a penny gets off scot-free. It penalises the very habit governments have spent decades trying to encourage.

And let us not forget the millions still on the old-style age pension, many of whom are already over the threshold because their payments include additional supplements. There are around 2.5 million pensioners on that old system who will watch the new cohort get kid-glove treatment while they keep paying. Fair? Not in my book.

What happens if you keep working?

This is where those long-tail concerns about paying tax without a tax return and working part time in retirement come into sharp focus. A huge number of people in their sixties are either staying in work or picking up a part-time gig just to make ends meet. But the interaction between the wage, the pension, and means-tested benefits is a minefield.

Take a typical scenario: you are drawing the full age pension and decide to take a job paying $24 an hour for 24 hours a week. Because the age pension already eats up almost all of your tax-free threshold, every penny you earn from that job gets taxed at 19%. On $576 gross weekly pay, you lose about $109 to income tax straight away.

Then the real kicker arrives. If you currently get rent assistance or council tax support, that take-home pay of $467 will slash your entitlements. Rent assistance tapers by 50 cents for every dollar you earn, which could wipe out up to $150 of your weekly help. Council tax support, depending on your local council, could swallow another $50. Do the sums:

• Gross pay: $576
• Minus income tax: $109
• Minus lost rent assistance: up to $150
• Minus lost council tax support: up to $50
• Net gain for 24 hours of work: potentially as little as $267 a week.

Before you factor in bus fares or a sandwich at work. It is enough to make anyone wonder if it is worth the hassle. As Steve Webb put it bluntly, if you rely on benefits to cover major costs, the financial advantage of a part-time job can be vanishingly small.

Where does the money come from if you are not on PAYG?

For those who do tip over the threshold, the tax usually gets collected through a tweaked tax code if you have a super pension or job. The ATO simply tells your super provider to deduct a bit more at source. But if your only income is the age pension and you go over, you are looking at something called a Notice of Assessment—a letter after the financial year end telling you what you owe.

If you are self-employed in retirement, or if your affairs are more complex, you might need to go down the tax return route. Online tax forums are full of people like "andy457" trying to work out whether a bit of casual work tips them into the 37% bracket. The official answer: if it is PAYG, they just tweak your code; if it is self-employment, you are filling in a return.

Wider ripples: bond yields, bank results and closed property funds

None of this exists in a vacuum. The chatter in the financial district, from trading floors to money podcasts, ties together bond yields, bank earnings and the odd property fund closure. Government bond yields matter because they affect annuity rates and the health of defined-benefit schemes. The high street lenders are reporting against a backdrop of frozen thresholds and stagnant growth. One City analyst summed up the mood this week when he said the UK economy is still "stuck in the mud".

When markets wobble and property funds gate, it is a reminder that anyone with an account-based pension or an SMSF is exposed to the same headwinds. The freezing of tax thresholds might be a stealth tax, but volatile markets can eat a pension just as effectively.

What can you actually do about it?

If you are approaching retirement or already there, burying your head is not an option. A few practical moves might soften the blow:

• Check your Age Pension forecast on the official Services Australia website so you know exactly what is coming.
• Use your tax-free super lump sum wisely. If you have a pot of money, taking some tax-free cash and using it to supplement income can keep you under the threshold.
• Lean on super pension phase. Money drawn from a super pension account is tax-free if you're over 60, full stop. If you have savings in super, using them before dipping into other income can reduce your bill.
• If you are considering part-time work, run the numbers first. Use a benefits calculator or seek independent financial advice. The marginal gain might be far smaller than you expect.
• Keep an eye on your tax notice. If the ATO thinks you owe tax, they will send you a notice. Make sure the estimate of your age pension and other income is accurate, or you could end up overpaying.

The truth is, the era of the tax-free retirement is quietly ending for everyone except the very poorest. The frozen thresholds are doing exactly what they were designed to do—hauling more people into the net without a vote-losing tax rise. For the million-plus pensioners about to discover they owe the tax office a few quid, it is going to feel like a very unwelcome birthday present.