    <SEC-DOCUMENT>0001562463-20-000098-index.html : 20201113
    <SEC-HEADER>0001562463-20-000098.hdr.sgml : 20201113
    <ACCEPTANCE-DATETIME>20201113162241
    ACCESSION NUMBER:		0001562463-20-000098
    CONFORMED SUBMISSION TYPE:	8-K
    PUBLIC DOCUMENT COUNT:		49
    CONFORMED PERIOD OF REPORT:	20201113
    ITEM INFORMATION:		Regulation FD Disclosure
    ITEM INFORMATION:		Financial Statements and Exhibits
    FILED AS OF DATE:		20201113
    DATE AS OF CHANGE:		20201113

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			First Internet Bancorp
    		CENTRAL INDEX KEY:			0001562463
    		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
    		IRS NUMBER:				203489991
    		STATE OF INCORPORATION:			IN
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		8-K
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-35750
    		FILM NUMBER:		201311782

    	BUSINESS ADDRESS:
    		STREET 1:		11201 USA PARKWAY
    		CITY:			FISHERS
    		STATE:			IN
    		ZIP:			46037
    		BUSINESS PHONE:		317-532-7900

    	MAIL ADDRESS:
    		STREET 1:		11201 USA PARKWAY
    		CITY:			FISHERS
    		STATE:			IN
    		ZIP:			46037
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>8-K
    <SEQUENCE>1
    <FILENAME>inbk-20201113.htm
    <DESCRIPTION>8-K
    <TEXT>
    Document 1 - file: inbk-20201113.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-99.1
    <SEQUENCE>2
    <FILENAME>inbkinvestorpresentation.htm
    <DESCRIPTION>EX-99.1
    <TEXT>
    Document 2 - file: inbkinvestorpresentation.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.SCH
    <SEQUENCE>3
    <FILENAME>inbk-20201113.xsd
    <DESCRIPTION>XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT
    <TEXT>
    Document 3 - file: inbk-20201113.xsd

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.CAL
    <SEQUENCE>4
    <FILENAME>inbk-20201113_cal.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT
    <TEXT>
    Document 4 - file: inbk-20201113_cal.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.DEF
    <SEQUENCE>5
    <FILENAME>inbk-20201113_def.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT
    <TEXT>
    Document 5 - file: inbk-20201113_def.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.LAB
    <SEQUENCE>6
    <FILENAME>inbk-20201113_lab.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT
    <TEXT>
    Document 6 - file: inbk-20201113_lab.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EX-101.PRE
    <SEQUENCE>7
    <FILENAME>inbk-20201113_pre.xml
    <DESCRIPTION>XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT
    <TEXT>
    Document 7 - file: inbk-20201113_pre.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>inbkinvestorpresentation001.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: inbkinvestorpresentation001.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>inbkinvestorpresentation002.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: inbkinvestorpresentation002.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>inbkinvestorpresentation003.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: inbkinvestorpresentation003.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>inbkinvestorpresentation004.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: inbkinvestorpresentation004.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>12
    <FILENAME>inbkinvestorpresentation005.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: inbkinvestorpresentation005.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>13
    <FILENAME>inbkinvestorpresentation006.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: inbkinvestorpresentation006.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>14
    <FILENAME>inbkinvestorpresentation007.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 14 - file: inbkinvestorpresentation007.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>15
    <FILENAME>inbkinvestorpresentation008.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: inbkinvestorpresentation008.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>16
    <FILENAME>inbkinvestorpresentation009.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: inbkinvestorpresentation009.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>17
    <FILENAME>inbkinvestorpresentation010.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: inbkinvestorpresentation010.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>18
    <FILENAME>inbkinvestorpresentation011.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: inbkinvestorpresentation011.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>19
    <FILENAME>inbkinvestorpresentation012.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: inbkinvestorpresentation012.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>20
    <FILENAME>inbkinvestorpresentation013.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: inbkinvestorpresentation013.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>21
    <FILENAME>inbkinvestorpresentation014.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: inbkinvestorpresentation014.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>22
    <FILENAME>inbkinvestorpresentation015.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: inbkinvestorpresentation015.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>23
    <FILENAME>inbkinvestorpresentation016.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: inbkinvestorpresentation016.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>24
    <FILENAME>inbkinvestorpresentation017.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: inbkinvestorpresentation017.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>25
    <FILENAME>inbkinvestorpresentation018.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: inbkinvestorpresentation018.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>26
    <FILENAME>inbkinvestorpresentation019.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: inbkinvestorpresentation019.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>27
    <FILENAME>inbkinvestorpresentation020.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: inbkinvestorpresentation020.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>28
    <FILENAME>inbkinvestorpresentation021.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: inbkinvestorpresentation021.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>29
    <FILENAME>inbkinvestorpresentation022.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: inbkinvestorpresentation022.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>30
    <FILENAME>inbkinvestorpresentation023.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: inbkinvestorpresentation023.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>31
    <FILENAME>inbkinvestorpresentation024.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: inbkinvestorpresentation024.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>inbkinvestorpresentation025.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: inbkinvestorpresentation025.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>33
    <FILENAME>inbkinvestorpresentation026.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 33 - file: inbkinvestorpresentation026.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>34
    <FILENAME>inbkinvestorpresentation027.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 34 - file: inbkinvestorpresentation027.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>35
    <FILENAME>inbkinvestorpresentation028.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 35 - file: inbkinvestorpresentation028.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>36
    <FILENAME>inbkinvestorpresentation029.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 36 - file: inbkinvestorpresentation029.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>37
    <FILENAME>inbkinvestorpresentation030.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 37 - file: inbkinvestorpresentation030.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>38
    <FILENAME>inbkinvestorpresentation031.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 38 - file: inbkinvestorpresentation031.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>39
    <FILENAME>inbkinvestorpresentation032.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 39 - file: inbkinvestorpresentation032.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>40
    <FILENAME>inbkinvestorpresentation033.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 40 - file: inbkinvestorpresentation033.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>41
    <FILENAME>inbkinvestorpresentation034.jpg
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 41 - file: inbkinvestorpresentation034.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>42
    <FILENAME>inbk-20201113_htm.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 42 - file: inbk-20201113_htm.html

    Document 42 - RAW XML: inbk-20201113_htm.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>43
    <FILENAME>R1.htm
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 43 - file: R1.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>EXCEL
    <SEQUENCE>44
    <FILENAME>Financial_Report.xlsx
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 44 - file: Financial_Report.xlsx

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>45
    <FILENAME>Show.js
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 45 - file: Show.js

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>46
    <FILENAME>report.css
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 46 - file: report.css

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>XML
    <SEQUENCE>47
    <FILENAME>FilingSummary.xml
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 47 - file: FilingSummary.html

    Document 47 - RAW XML: FilingSummary.xml

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>JSON
    <SEQUENCE>49
    <FILENAME>MetaLinks.json
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 49 - file: MetaLinks.json

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>ZIP
    <SEQUENCE>50
    <FILENAME>0001562463-20-000098-xbrl.zip
    <DESCRIPTION>IDEA: XBRL DOCUMENT
    <TEXT>
    Document 50 - file: 0001562463-20-000098-xbrl.zip

    </DOCUMENT>
    </SEC-DOCUMENT>