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When
Should Married Couples File Separately?
I am often asked whether you and your spouse should
file a joint tax return or separate returns. As is often the case with tax
questions, the answer depends on your particular tax picture.
In general, your decision will depend upon which filing
status results in the lowest tax. But bear in mind that, if you and your spouse
file a joint return, each of you is jointly and severally liable for the tax on
your combined income, including any additional tax that IRS assesses, plus
interest and most penalties. This means that IRS can come after either of you to
collect the full amount. Although there are provisions in the law that offer
relief from joint and several liability, each of those provisions has its
limitations. Thus, even if a joint return results in less tax, you may choose to
file a separate return if you want to be certain of being responsible only for
your own tax.
In most cases, filing jointly offers the most tax
savings, particularly where the spouses have different income levels. The
“averaging” effect of combining the two incomes can bring some of it out of
a higher tax bracket. For example, for 2005, if one spouse has $75,000 of
taxable income and the other has just $15,000, filing jointly instead of
separately can save $1,920.75 in taxes.
Note that filing separately doesn't mean you go back to
using the “single” rates that applied before you were married. Instead, each
spouse must use the “married filing separately” rates. These rates are based
on brackets that are exactly half of the married filing joint brackets but are
still less favorable than the “single” rates. This means the “marriage
penalty” (which requires some marrieds to pay at a higher tax rate on the same
total income than they would pay if each were single) isn't eliminated by filing
separate returns. Note that although you may have heard that Congress has acted
to provide relief from the marriage penalty in the tax rates, those changes
don't provide a complete solution.
There is a potential for tax savings from filing
separately, however, where one spouse has significant amounts of medical
expenses, casualty losses, or “miscellaneous itemized deductions.” These
deductions are reduced by a percentage of adjusted gross income (AGI). Medical
expenses are deductible only to the extent they exceed 7.5% of AGI, and casualty
losses must exceed 10% of AGI. Miscellaneous itemized deductions, which include
a variety of deductions such as investment expenses (other than investment
interest), unreimbursed employee expenses, and tax return preparation costs, are
deductible to the extent their combined total exceeds 2% of AGI (often referred
to as a “2% floor”).
If these deductions are isolated on the separate return
of a spouse, that spouse's lower (separate) AGI, as compared to the higher joint
AGI, can result in larger total deductions. For example, if one spouse has
$7,000 in medical expenses and joint income is $90,000, then only $250 is
deductible on a joint return, because 7.5% of $90,000 is $6,750 (and $7,000 -
$6,750 = $250). But if the income of the spouse with the medical expenses is
separately only $15,000, the deduction increases to $5,875 on a separate return,
because 7.5% of $15,000 is only $1,125 (and $7,000 - $1,125 = $5,875).
On the other hand, the amounts you claim as a deduction
for exemptions and for certain itemized deductions, including miscellaneous
itemized deductions, are phased out (i.e., reduced) once your AGI goes above a
certain threshold, depending upon your filing status. The AGI threshold at which
phaseout of exemptions and itemized deductions begins is higher for joint
returns than for separate returns. For example, in the case of exemptions, the
threshold in 2005 for joint returns is $218,950 as compared to only $109,475 for
separate returns. Thus, if you file a separate return, your deduction for
exemptions is phased out if your AGI exceeds $109,475. But if you and your
spouse file a joint return, your deduction for exemptions doesn't begin to phase
out until your AGI exceeds $218,950. This means that a phaseout which might be
suffered on a separate return may be avoided if you and your spouse file a joint
return. The tax savings at stake will vary depending on how many exemptions are
claimed and your income levels. The required exemption and itemized deduction
phaseouts are scheduled to be reduced beginning in 2006. But until the phaseout
rules are completely eliminated (in 2010), they must be considered in
determining whether to file a joint or separate return.
Other tax factors may point to the advisability of
filing a joint return. For example, the child and dependent care credit,
adoption expense credit, Hope and Lifetime learning credits, and the deduction
for higher education expenses are available to a married couple only on a joint
return. And you can't take the credit for the elderly or the disabled if you
file separate returns unless you and your spouse lived apart for the entire
year. Nor can you deduct qualified education loan interest unless a joint return
is filed. You may also not be able to deduct contributions to your IRA if either
you or your spouse was covered by an employer retirement plan and you file
separate returns. Nor can you exclude adoption assistance payments or any
interest income from series EE savings bonds that you used for higher education
expenses if you file separate returns.
In addition, social security benefits may be more
heavily taxed to a couple that files separately. The benefits are tax-free if
your “provisional income” (your adjusted gross income with certain
modifications plus half of your social security benefits) doesn't exceed a
“base amount.” The base amount is $32,000 on a joint return, but zero on
separate return (or $25,000 if the spouses didn't live together for the entire
year).
The decision you make for federal income tax purposes
may have an impact on your state or local income tax bill, so the total tax
impact has to be compared. For example, an overall federal tax saving by filing
separately might be offset by an overall state tax increase, or a state tax
saving might offset a federal tax increase.
Unfortunately, I can't give you any hard and fast rules
of thumb for when it pays to file separately. The tax laws have grown so complex
over the years that there are often a number of different factors at play for
any given situation. However, there is one approach guaranteed to come up with
the correct decision. We can simply calculate your tax bill both ways: jointly
and separately. Then the approach that leads to overall tax savings could be
used.
I'd be happy to run the numbers for you to make sure
you pay the minimum amount of taxes possible. Please call to arrange for a
consultation or if you have any additional questions.
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