Moving to the USA: The Everyday Things Aussies Don’t See Coming

So you’ve done it. You’ve signed up for the great American adventure: the job, the money, the road trips, the absurdly large breakfasts. The visa is sorted, the boxes are nearly packed, and you’re feeling pretty across it all.

And you probably are, on the big stuff. It’s the small stuff that ambushes Aussies in America. The everyday rhythms of money and life over there run on slightly different rails, and the differences have a way of costing you, in dollars or in confusion, until you learn them. Here are three of the big ones, plus the one that’s a genuine tax trap rather than just a quirk.

Health care: brace your wallet

Let’s not sugar-coat it. The American health system is expensive and, to an Australian, faintly baffling. There’s no Medicare-style universal public option waiting to catch you. Health cover mostly comes through your employer, so when you’re weighing up a job offer, the health plan attached to it is part of the salary, not a footnote. Read it like one.

Even with solid employer insurance, you’ll meet a vocabulary of out-of-pocket costs that Australia largely spares you: the deductible (what you pay before insurance kicks in), the copay (your flat fee per visit), and coinsurance (your percentage share after the deductible). A routine visit to the doctor can still leave you reaching for your wallet in a way that feels deeply wrong to an Aussie. Budget for it, understand your plan before you need it, and never, ever let your cover lapse between jobs.

Renting: same idea, different rules

Renting works, but the dials are set differently. Back home, rent is quoted per week; in the US it’s quoted per month, so do the mental arithmetic before you get excited or horrified by a number. Location is everything: the great American middle is often genuinely cheap, while the coastal job magnets bite hard. If you’re headed for San Francisco, New York or Boston, prepare for sticker shock and then add a bit.

Two upfront-cost quirks catch Aussies out. Landlords commonly want first and last month’s rent plus a security deposit, so the cash you need to walk in the door can be a hefty multiple of one month’s rent. And your American credit history (which you won’t have on day one) matters enormously. With no US credit score, you may be asked for a larger deposit, a guarantor, or several months’ rent in advance. Start building US credit early, because over there, having no credit history is treated with almost as much suspicion as having a bad one.

Retirement: meet the 401(k) and the IRA

Americans save for retirement through a patchwork that makes Australia’s compulsory super look like a model of tidy design. The two names you’ll hear constantly are the 401(k) (an employer-based plan, roughly the US cousin of super) and the IRA, or Individual Retirement Arrangement (one you set up yourself).

The big cultural difference: contributions generally aren’t compulsory the way super is. Many Americans save far too little as a result, and surveys routinely find a big chunk of the population badly under-prepared for retirement. So if your US employer offers to match your 401(k) contributions, that’s free money, and you grab it with both hands; the matched portion is part of your real pay. For 2026 you can put up to US$24,500 into a 401(k) as an employee (more if you’re 50 or older), and up to US$7,500 into an IRA, with the usual tangle of income limits and tax rules attached. The tax breaks are real and worth using, so get advice on which accounts suit you.

The big one: no, you can’t just “bring your super over”

Here’s where the original version of this article (and a lot of well-meaning advice) gets people into trouble, so read this twice.

You generally cannot transfer your Australian super into a US 401(k) or IRA. They are not connected systems, there’s no rollover bridge between them, and trying to force it doesn’t work. On top of that, your super is preserved under Australian rules, meaning you usually can’t access it until you reach preservation age or meet another condition of release, regardless of which country you’re living in. So for most people, the super stays exactly where it is: in Australia, quietly compounding away.

And it gets thornier, because as a US tax resident your Australian super doesn’t get the friendly treatment it enjoys back home. The US tax system doesn’t neatly recognise super, which can create genuine tax and reporting headaches (think foreign trust questions, FBAR and Form 8938). This is a real and underappreciated trap, and we’ve written a whole piece on it: Aussie Super and the US Taxman. If you have super and you’re moving to the States, read that before you do anything clever with it.

The bottom line

Most of what trips up Aussies in America isn’t dramatic, it’s the daily mechanics: budgeting for health costs that used to be free-ish, navigating rent quoted monthly with hefty upfront cash, and getting your head around a voluntary retirement system. But the genuine landmine is super, because leaving Australia changes how it’s taxed without changing where it sits. Sort the everyday stuff yourself, and get proper advice on the super before the IRS gets interested.

Tread your own path. Just pack a working understanding of the local rules alongside the thongs and the Vegemite.

Moving to the US? Get the tax side sorted before you fly.

The lifestyle adjustments you’ll figure out as you go. The tax ones are far less forgiving, especially around your super, your Australian assets, and the dual filing obligations that kick in the moment you become a US tax resident. Get them right from the start and you’ll save yourself money, penalties, and a great deal of stress.

Our specialist cross-border tax team helps Australians moving to and living in the US get all of this right, from the super question to your final Australian return, entirely remotely.

Book an appointment with our cross-border tax specialists today, ideally before you board the plane. Your future self (and your hip pocket) will thank you.

General information only. This article doesn’t consider your personal circumstances and isn’t tax, financial or migration advice. US and cross-border tax positions depend heavily on your specific facts. Speak to our specialist cross-border tax team today, or another suitably qualified adviser, before acting.

References

1. Internal Revenue Service, “401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500” (2026 contribution limits for 401(k) plans and IRAs): irs.gov
2. Internal Revenue Service, “Topic no. 451, Individual Retirement Arrangements (IRAs)” (overview of traditional and Roth IRAs): irs.gov
3. Australian Taxation Office, “Accessing your super” (preservation age and conditions of release for Australian superannuation): ato.gov.au
4. HealthCare.gov (US Government), “Glossary” (definitions of deductible, copayment and coinsurance in US health insurance): healthcare.gov