diff --git a/pain/pain_regexp.go b/pain/pain_regexp.go
index 8debdd6..467fa7e 100644
--- a/pain/pain_regexp.go
+++ b/pain/pain_regexp.go
@@ -27,8 +27,10 @@ var (
 		"BIC":              BICIdentifier,
 		"CreDtTm":          ISODateTime,
 		"CtrlSum":          RestrictedDecimalNumber,
+		"EndToEndId":       RestrictionIdentificationSEPA1,
 		"IBAN":             IBAN2007Identifier,
 		"Id":               RestrictedPersonIdentifierSEPA,
+		"InstrId":          RestrictionIdentificationSEPA1,
 		"MsgId":            RestrictedIdentificationSEPA1,
 		"NbOfTxs":          Max15NumericText,
 		"Nm":               Max70Text,
diff --git a/pain/payment_information_transactions.go b/pain/payment_information_transactions.go
new file mode 100644
index 0000000..7107973
--- /dev/null
+++ b/pain/payment_information_transactions.go
@@ -0,0 +1,36 @@
+package pain
+
+import (
+	"fmt"
+	"strings"
+)
+
+type DrctDbtTxInf struct {
+	Id     PaymentId          `xml:"PmtId"`
+	Amount CurrencyWithAmount `xml:"InstdAmt"`
+}
+
+type CurrencyWithAmount struct {
+	Currency string `xml:"Ccy,attr"`
+	Value    string `xml:",innerxml"`
+}
+
+type PaymentId struct {
+	InstrumentId string `xml:"InstrId"`
+	EndToEndId   string `xml:"EndToEndId"`
+}
+
+func (p *PaymentId) Valid() error {
+	var err []string
+	if !SEPARegexps["InstrId"].MatchString(p.InstrumentId) {
+		err = append(err, "instrument id does not match format")
+	}
+	if !SEPARegexps["EndToEndId"].MatchString(p.EndToEndId) {
+		err = append(err, "end-to-end id does not match format")
+	}
+
+	if len(err) > 0 {
+		return fmt.Errorf("payment id not valid: %v", strings.Join(err, ", "))
+	}
+	return nil
+}