<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>118 - Disclosure - Income Taxes</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>P01_01_2013To06_30_2013</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0001287701</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2013-01-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-30T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="6 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 30, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>1</Level><ElementName>us-gaap_IncomeTaxDisclosureAbstract</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Income Tax Disclosure [Abstract]</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_IncomeTaxDisclosureTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>verboseLabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="P01_01_2013To06_30_2013" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>              &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif "&gt;  &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &lt;strong&gt;12. Income Taxes&lt;/strong&gt;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  The Company has elected to be taxed as a REIT, under Sections 856  through 860 of the Internal Revenue Code beginning with its taxable  year ended December 31, 2004. To qualify as a REIT, the Company  must meet certain organizational and operational requirements,  including a requirement to distribute at least &lt;font style=" FONT-SIZE: 10pt"&gt;90&lt;/font&gt;% of its ordinary taxable income to  stockholders. As a REIT, the Company generally will not be subject  to U.S. federal income tax on taxable income that it distributes to  its stockholders. If the Company fails to qualify as a REIT in any  taxable year, it will then be subject to U.S. federal income taxes  on taxable income at regular corporate rates and will not be  permitted to qualify for treatment as a REIT for U.S. federal  income tax purposes for four years following the year during which  qualification is lost unless the Internal Revenue Service grants  the Company relief under certain statutory provisions. Such an  event could materially adversely affect the Company&amp;#8217;s net  income and net cash available for distributions to stockholders.  However, the Company believes that it is organized and will operate  in such a manner as to qualify for treatment as a REIT and the  Company intends to operate in the foreseeable future in such a  manner so that it will qualify as a REIT for U.S. federal income  tax purposes. The Company may, however, be subject to certain state  and local taxes. Our TRSs are subject to federal, state and local  taxes. The Company&amp;#8217;s Asset and Property management business,  Gramercy Asset Management, conducts its business through a  wholly-owned TRS. In addition to the limitation on the Company's  use of its net operating losses under Section 382, since the  Company uses separate taxable REIT subsidiaries to conduct  different aspects of its business, losses incurred by the  individual TRSs are only available to offset taxable income derived  by each respective TRS.&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  Beginning with the third quarter of 2008, the Company&amp;#8217;s board  of directors elected to not pay a dividend to common stockholders.  The board of directors also elected not to pay the Series A  preferred stock dividend of $&lt;font style=" FONT-SIZE: 10pt"&gt;0.50781&lt;/font&gt; per share beginning with the  fourth quarter of 2008. The unpaid preferred stock dividend has  been accrued for nineteen quarters as of June 30, 2013. The Company  expects that it will continue to elect to retain capital for  liquidity purposes; however, as the Company&amp;#8217;s new business  strategy is implemented and sustainable cash flows grow, the  Company will re-evaluate its dividend policy with the intention of  resuming dividends. However, in accordance with the provisions of  the Company&amp;#8217;s charter, the Company may not pay any dividends  on its common stock until all accrued dividends and the dividend  for the then current quarter on the Series A preferred stock are  paid in full.&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  For the three and six months ended June 30, 2013,&amp;#160;the Company  recorded&amp;#160;$&lt;font style=" FONT-SIZE: 10pt"&gt;4,441&lt;/font&gt;&amp;#160;and  $7,361&amp;#160;of income tax expense, including $&lt;font style=" FONT-SIZE: 10pt"&gt;0&lt;/font&gt; and&amp;#160;$&lt;font style=" FONT-SIZE: 10pt"&gt;2,515&lt;/font&gt;&amp;#160;within discontinued  operations, respectively. Tax expense for the three and  six&amp;#160;months ended June 30, 2013 in continuing operations is  comprised of federal, state and local taxes primarily attributable  to Gramercy Asset Management. Tax expense for the three and six  months ended June 30, 2013 included in discontinued operations is  comprised of federal, state and local taxes attributable to the  sale of the CDO management contracts to CWCapital.&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 15.1pt; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0in 0in 0pt"&gt;  &lt;font style="FONT-SIZE: 10pt" lang="EN"&gt;Net deferred tax assets of  $&lt;font style=" FONT-SIZE: 10pt"&gt;2,106&lt;/font&gt; and $&lt;font style=" FONT-SIZE: 10pt"&gt;0&lt;/font&gt; are included in other assets on the  accompanying Condensed Consolidated Balance Sheets at June 30, 2013  and December 31, 2012, respectively. Deferred tax assets as of  December 31, 2012 relate to net operating loss carry forwards of  TRSs, which are fully reserved. Deferred tax assets as of June 30,  2013 relate to the incentive fee from the management agreement with  KBSAS earned by our asset management TRS and the fully reserved net  operating loss carryforwards.&lt;/font&gt;&lt;/div&gt;  &lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  &amp;#160;&lt;/div&gt;    &lt;div style="clear:both; FONT-FAMILY:Times New Roman;FONT-SIZE: 10pt;TEXT-INDENT: 0.25in; MARGIN: 0pt 0px; FONT: 10pt Times New Roman, Times, Serif"&gt;  The Company&amp;#8217;s policy for interest and penalties, if any, on  material uncertain tax positions recognized in the&amp;#160;Condensed  Consolidated Financial Statements&amp;#160;is to classify these as  interest expense and operating expense, respectively. As of June  30, 2013, and December 31, 2012, the Company did not incur any  material interest or penalties.&lt;/div&gt;  &lt;/div&gt;        </NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 740

 -SubTopic 10

 -Section 50

 -Paragraph 15

 -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32718-109319



Reference 2: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 235

 -SubTopic 10

 -Section S99

 -Paragraph 1

 -Subparagraph (SX 210.4-08.(h))

 -URI http://asc.fasb.org/extlink&amp;oid=26873400&amp;loc=d3e23780-122690



Reference 3: http://www.xbrl.org/2003/role/presentationRef

 -Publisher SEC

 -Name Regulation S-X (SX)

 -Number 210

 -Section 08

 -Paragraph h

 -Article 4



Reference 4: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 740

 -SubTopic 10

 -Section 50

 -Paragraph 9

 -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32639-109319



Reference 5: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 740

 -SubTopic 10

 -Section 50

 -Paragraph 2

 -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32537-109319



Reference 6: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 740

 -SubTopic 10

 -Section 50

 -Paragraph 3

 -URI http://asc.fasb.org/extlink&amp;oid=6907707&amp;loc=d3e32559-109319



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Income Tax Disclosure [Text Block]</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Income Taxes</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://www.gramercycapitalcorp.com/role/IncomeTaxes</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows></InstanceReport>
