diff --git a/main.go b/main.go
index 6479690..b6d0a51 100644
--- a/main.go
+++ b/main.go
@@ -35,10 +35,10 @@ func (t *Transaction) Values() []string {
 		tType = "Sale"
 	}
 	return []string{
-		tType, // "Type"
-		t.Date.Format("01/02/2006"),                    // "Trans Date"
-		t.Date.Format("01/02/2006"),                    // "Post Date"
-		t.MerchantName,                                 // "Description"
+		tType,                       // "Type"
+		t.Date.Format("01/02/2006"), // "Trans Date"
+		t.Date.Format("01/02/2006"), // "Post Date"
+		t.MerchantName,              // "Description"
 		strconv.FormatFloat(-1.0*t.Amount, 'f', 2, 64), // "Amount"
 	}
 }
@@ -91,6 +91,33 @@ func (s *Statement) Reconcile() (float64, bool) {
 	return total, isOK
 }
 
+// FixEndOfYearEdgeCase checks if there are both January and December transactions.
+// If both months are present, all December transactions are changed to the previous year.
+func (s *Statement) FixEndOfYearEdgeCase() bool {
+	hasDecember := false
+	hasJanuary := false
+
+	for _, t := range s.Transactions {
+		month := t.Date.Month()
+		if month == time.December {
+			hasDecember = true
+		}
+		if month == time.January {
+			hasJanuary = true
+		}
+	}
+
+	if hasDecember && hasJanuary {
+		for i, t := range s.Transactions {
+			if t.Date.Month() == time.December {
+				s.Transactions[i].Date = t.Date.AddDate(-1, 0, 0)
+			}
+		}
+		return true
+	}
+	return false
+}
+
 var findStatements = regexp.MustCompile(`(?m)^([0-9]{0,2})/([0-9]{0,2}) (.*) ([0-9\-\.,]+)`)
 
 var (
@@ -157,6 +184,9 @@ func main() {
 	} else {
 		log.Fatal("could not find ending balance :( ")
 	}
+	if fixed := (statement.FixEndOfYearEdgeCase()); fixed {
+		log.Print("found end of year transactions and revised december dates")
+	}
 	sort.Sort(statement.Transactions)
 	if val, res := statement.Reconcile(); !res {
 		log.Fatalf("reconciliation doesn't match :(, actual: %v, expected %v", val, statement.EndingBalance)