diff --git a/fio_splitter.sh b/fio_splitter.sh
index ba29be9..b8b7063 100644
--- a/fio_splitter.sh
+++ b/fio_splitter.sh
@@ -101,8 +101,66 @@ log() {
     echo `date '+%Y-%m-%d %H:%M:%S'` "$@"
 }
 
+#
+# Gets only given header
+# $1 - path to file
+# $2 - header name
+get_header_field() {
+    grep "^$2" "$1"
+}
 
+#
+# Splits given file into twelve months
+split_year() {
+    # Examine name
+    CSVNAME="$1"
+    bname=${CSVNAME##*/}
+    ACCNO=${bname%%-*}
+    rest=${bname##*-}
+    YEAR=${rest%%.*}
+    log Splitting "$CSVNAME" year "$YEAR" account "$ACCNO"
+
+    # Read header
+    accountId=`get_header_field $CSVNAME accountId`
+    bankId=`get_header_field $CSVNAME bankId`
+    currency=`get_header_field $CSVNAME currency`
+    iban=`get_header_field $CSVNAME iban`
+    openingBalance=`get_header_field $CSVNAME openingBalance`
+    closingBalance=`get_header_field $CSVNAME closingBalance`
+    dateStart=`get_header_field $CSVNAME dateStart`
+    dateEnd=`get_header_field $CSVNAME dateEnd`
+    idFrom=`get_header_field $CSVNAME idFrom`
+    idTo=`get_header_field $CSVNAME idTo`
+
+    # Emit months
+    for month in `seq 1 12` ; do
+	MONTH=$month
+	if [ $MONTH -lt 10 ] ; then
+	    MONTH=0$MONTH
+	fi
+	MCSVNAME="$BANK_DIR_PARTS/$ACCNO-$YEAR-$MONTH.csv"
+	log $MCSVNAME
+    done
+}
+
+# Current year (last in seq)
+CYEAR=`date +%Y`
+
+# Process all known accounts
 log Started
 while read accnt ; do
-    log $accnt
-done
+    # Extract account number and starting year
+    ACCNO=${accnt%% *}
+    accrest=${accnt#* }
+    accrest2=${accrest#* }
+    YEAR=${accrest2%% *}
+
+    # Process the account
+    log ==== ACCNO=$ACCNO YEAR=$YEAR
+
+    # Iterate over years
+    for year in `seq $YEAR $CYEAR` ; do
+	CSVNAME="$BANK_DIR_PARTS/$ACCNO-$year.csv"
+	split_year $CSVNAME
+    done
+done < "$APIKEYS_FILE"