diff --git a/src/ledger/delta.go b/src/ledger/delta.go
index 1fc3f10..929e5e9 100644
--- a/src/ledger/delta.go
+++ b/src/ledger/delta.go
@@ -10,6 +10,7 @@ const (
 
 type Delta struct {
 	Date        string
+	OtherDates  []string
 	Name        string
 	Value       float64
 	Currency    Currency
@@ -23,9 +24,10 @@ type Delta struct {
 	with     []Delta
 }
 
-func newDelta(transaction string, payee bool, d, desc, name string, v float64, c string, isSet bool, fileName string, lineNo int) Delta {
+func newDelta(transaction string, payee bool, d, desc, name string, v float64, c string, isSet bool, fileName string, lineNo int, otherDates []string) Delta {
 	return Delta{
 		Date:        d,
+		OtherDates:  otherDates,
 		Name:        name,
 		Value:       v,
 		Currency:    Currency(c),
diff --git a/src/ledger/delta_test.go b/src/ledger/delta_test.go
index 53304df..2bd5ffa 100644
--- a/src/ledger/delta_test.go
+++ b/src/ledger/delta_test.go
@@ -6,7 +6,7 @@ import (
 
 func TestDelta(t *testing.T) {
 	d := "2099-08-07"
-	delta := newDelta("x", true, d, "", "name", 34.56, "$", false, "", 0)
+	delta := newDelta("x", true, d, "", "name", 34.56, "$", false, "", 0, []string{"d2"})
 
 	if delta.Transaction != "x" {
 		t.Error(delta.Transaction)
@@ -17,6 +17,9 @@ func TestDelta(t *testing.T) {
 	if delta.Date != d {
 		t.Error(delta.Date)
 	}
+	if delta.OtherDates[0] != "d2" {
+		t.Error(delta.OtherDates)
+	}
 	if delta.Name != "name" {
 		t.Error(delta.Name)
 	}
diff --git a/src/ledger/file.go b/src/ledger/file.go
index 95c8182..0df4781 100644
--- a/src/ledger/file.go
+++ b/src/ledger/file.go
@@ -99,8 +99,12 @@ func (files Files) add(payee string, delta Delta) error {
 	if delta.Currency != USD {
 		currencyValue = fmt.Sprintf("%.2f %s", delta.Value, delta.Currency)
 	}
+	date := delta.Date
+	for _, otherDate := range delta.OtherDates {
+		date += "=" + otherDate
+	}
 	return files.append(fmt.Sprintf("%s   %s\n%s%s%s%s\n%s%s",
-		delta.Date, delta.Description,
+		date, delta.Description,
 		filesAppendDelim, delta.Name, filesAppendDelim+filesAppendDelim+filesAppendDelim, currencyValue,
 		filesAppendDelim, payee,
 	))
diff --git a/src/ledger/file_test.go b/src/ledger/file_test.go
index c568b34..e814a7c 100644
--- a/src/ledger/file_test.go
+++ b/src/ledger/file_test.go
@@ -73,12 +73,13 @@ func TestFileAmend(t *testing.T) {
 		},
 		"payee": {
 			from: `
-2006-01-02  description
+2006-01-02=2006-01-03  description
                recipient  $3.45
                payee
          `,
 			old: Delta{
 				Date:        "2006-01-02",
+				OtherDates:  []string{"2006-01-03"},
 				Name:        "payee",
 				Value:       -3.45,
 				Currency:    "$",
@@ -86,16 +87,17 @@ func TestFileAmend(t *testing.T) {
 			},
 			now: Delta{
 				Date:        "2106-11-12",
+				OtherDates:  []string{"2006-01-03"},
 				Name:        "1payee",
 				Value:       -13.45,
 				Currency:    "T",
 				Description: "1description",
 			},
 			want: `
-2006-01-02   description
+2006-01-02=2006-01-03   description
 	payee			$3.45
 	recipient
-2106-11-12   1description
+2106-11-12=2006-01-03   1description
 	1payee			-13.45 T
 	recipient`,
 		},
diff --git a/src/ledger/transaction.go b/src/ledger/transaction.go
index 979fe39..0b068fe 100644
--- a/src/ledger/transaction.go
+++ b/src/ledger/transaction.go
@@ -106,6 +106,7 @@ func (transaction Transaction) Payee() string {
 
 type transaction struct {
 	date        string
+	otherDates  []string
 	description string
 	payee       string
 	recipients  []transactionRecipient
@@ -142,6 +143,7 @@ func (t transaction) deltas() Deltas {
 			recipient.isSet,
 			t.fileName,
 			t.lineNo+i,
+			t.otherDates,
 		))
 	}
 	for currency, value := range sums {
@@ -162,6 +164,7 @@ func (t transaction) deltas() Deltas {
 				false,
 				t.fileName,
 				t.lineNo,
+				t.otherDates,
 			))
 		}
 	}
@@ -287,16 +290,17 @@ func _readTransaction(name string, r *bufio.Reader) (transaction, error) {
 		return transaction{}, err
 	}
 
-	dateDescriptionPattern := regexp.MustCompile(`^([0-9]+-[0-9]+-[0-9]+)\s+(.*)$`)
-	dateDescriptionMatches := dateDescriptionPattern.FindAllSubmatch(firstLine, 4)
+	dateDescriptionPattern := regexp.MustCompile(`^([0-9]+-[0-9]+-[0-9]+)((=[0-9]+-[0-9]+-[0-9]+)*)\s+(.*)$`)
+	dateDescriptionMatches := dateDescriptionPattern.FindAllStringSubmatch(string(firstLine), 4)
 	if len(dateDescriptionMatches) != 1 {
 		return transaction{}, fmt.Errorf("bad first line: %v matches: %q", len(dateDescriptionMatches), firstLine)
-	} else if len(dateDescriptionMatches[0]) != 3 {
+	} else if len(dateDescriptionMatches[0]) != 5 {
 		return transaction{}, fmt.Errorf("bad first line: %v submatches: %q", len(dateDescriptionMatches[0]), firstLine)
 	}
 	result := transaction{
-		date:        string(dateDescriptionMatches[0][1]),
-		description: string(dateDescriptionMatches[0][2]),
+		date:        dateDescriptionMatches[0][1],
+		otherDates:  strings.Split(strings.Trim(dateDescriptionMatches[0][2], "="), "="),
+		description: dateDescriptionMatches[0][4],
 		name:        name,
 	}
 
diff --git a/src/ledger/transaction_test.go b/src/ledger/transaction_test.go
index e531792..07e35cc 100644
--- a/src/ledger/transaction_test.go
+++ b/src/ledger/transaction_test.go
@@ -58,12 +58,13 @@ func TestReadTransaction(t *testing.T) {
 		},
 		"verbose": {
 			input: `
-2003-04-05            Reasoning here
+2003-04-05=2003-04-06=2003-04-07 Reasoning here
    A:B   $1.00
    C:D   $-1.00
          `,
 			want: transaction{
 				date:        "2003-04-05",
+				otherDates:  []string{"2003-04-06", "2003-04-07"},
 				description: "Reasoning here",
 				payee:       "A:B",
 				recipients: []transactionRecipient{