Please consult your tax advisor who may conrm the applicability of the U.S. tax law to your U.S. tax situation.
Income Tax Year for Filing
Purposes
The U.S. income tax year is based on the calendar
year. Tax returns and payment must generally
be led by April 15 of the following year. While
extensions may be led, interest and penalty may
be charged on any tax paid after April 15.
As previously mentioned, the U.S. taxes its
citizens and individuals, who are residents for
income tax purposes, on their worldwide income.
When income is sourced in a foreign country, the
U.S. generally allows a credit for the tax paid on
that same taxed income.
Tax Filing Options
In the U.S., married couples have the option to
le jointly or separately on their federal income
tax returns. By ling a joint tax return, you can
benet from several tax breaks compared to ling
separately. In some cases, it could make more
sense to le separate returns.
Taxpayer Identication Numbers
All individuals ling tax returns must have a U.S.
Social Security number (SSN) or an individual tax
identication number (ITIN). ITINs are important
for selling residences, obtaining driver’s licenses,
opening certain bank accounts and more.
Differences Between Australian –
U.S. Business Structures
Australians planning to work in the U.S. should be
aware that the U.S. has different business entities.
Australia generally has six main structures: sole
trader, company, partnership, trust, unlimited
proprietary (Pty) and proprietary limited (Pty Ltd).
The U.S. business structures also include several
entities, including limited liability companies
(LLCs), partnerships, C corporations, S
corporations and single-member LLCs.
For U.S. tax purposes, a C corporation pays
income tax at the corporate level separate from
its owners. Conversely, the income of a pass-
through entity (S corporation, LLC, partnership,
and single-member LLC) ows through to its
individual owner’s personal income tax return.
A pass-through entity generally does not pay
federal income tax on its own.
Keep in mind that the business structure you have
in Australia may be treated differently in the U.S.
2021 U.S. Tax Brackets
Rate Individuals Married Filing Jointly
10%
Up to $9,875 Up to $19,750
12%
$9,875 – $40,125 $19,750 – $80,250
22%
$40,125 – $85,525 $80,250 – $171,050
24%
$85,525 – $163,300 $171,050 – $326,600
32%
$163,300 – $207,350 $326,600 – $414,700
35%
$207,350 – $518,400 $414,700 – $622,050
37%
Over $518,400 Over $622,050
Standard Deduction: $12,400
Personal Exemption: Eliminated
Standard Deduction: $24,800
Personal Exemption: Eliminated
3 An Overview of the U.S. Tax System for Australian Expats