Publication 54
taxmap/pubs/p54-003.htm#en_us_publink100047368The requirements for determining who must pay estimated tax are
the same for a U.S. citizen or resident abroad as for a taxpayer in the United
States. For current instructions on making estimated tax payments, see Form
1040-ES.
If you had a tax liability for 2010, you may have to pay estimated
tax for 2011. Generally, you must make estimated tax payments for 2011 if you
expect to owe at least $1,000 in tax for 2011 after subtracting your withholding
and credits and you expect your withholding and credits to be less than the
smaller of:
- 90% of the tax to be shown on your 2011 tax return, or
- 100% of the tax shown on your 2010 tax return. (The return
must cover all 12 months.)
If less than two-thirds of your gross income for 2010 or 2011
is from farming or fishing and your adjusted gross income for 2010 is more than
$150,000 ($75,000 if you are married and file separately), substitute 110% for
100% in (2) above. See Publication 505 for more information.
The first installment of estimated tax is due on April 18, 2011.
taxmap/pubs/p54-003.htm#en_us_publink100047369When figuring your estimated gross income, subtract amounts you
expect to exclude under the foreign earned income exclusion and the foreign
housing exclusion. In addition, you can reduce your income by your estimated
foreign housing deduction. However, you must estimate tax on your nonexcluded
income using the tax rates that will apply had you not excluded the income. If
the actual amount of the exclusion or deduction is less than you estimate, you
may have to pay a penalty for underpayment of estimated tax.
For more information about figuring your estimated tax, see Publication
505.