diff --git a/syncapi/storage/postgres/ignores_table.go b/syncapi/storage/postgres/ignores_table.go
index 055a1a23..97660725 100644
--- a/syncapi/storage/postgres/ignores_table.go
+++ b/syncapi/storage/postgres/ignores_table.go
@@ -19,6 +19,7 @@ import (
 	"database/sql"
 	"encoding/json"
 
+	"github.com/matrix-org/dendrite/internal/sqlutil"
 	"github.com/matrix-org/dendrite/syncapi/storage/tables"
 	"github.com/matrix-org/dendrite/syncapi/types"
 )
@@ -61,10 +62,10 @@ func NewPostgresIgnoresTable(db *sql.DB) (tables.Ignores, error) {
 }
 
 func (s *ignoresStatements) SelectIgnores(
-	ctx context.Context, userID string,
+	ctx context.Context, txn *sql.Tx, userID string,
 ) (*types.IgnoredUsers, error) {
 	var ignoresData []byte
-	err := s.selectIgnoresStmt.QueryRowContext(ctx, userID).Scan(&ignoresData)
+	err := sqlutil.TxStmt(txn, s.selectIgnoresStmt).QueryRowContext(ctx, userID).Scan(&ignoresData)
 	if err != nil {
 		return nil, err
 	}
@@ -76,12 +77,12 @@ func (s *ignoresStatements) SelectIgnores(
 }
 
 func (s *ignoresStatements) UpsertIgnores(
-	ctx context.Context, userID string, ignores *types.IgnoredUsers,
+	ctx context.Context, txn *sql.Tx, userID string, ignores *types.IgnoredUsers,
 ) error {
 	ignoresJSON, err := json.Marshal(ignores)
 	if err != nil {
 		return err
 	}
-	_, err = s.upsertIgnoresStmt.ExecContext(ctx, userID, ignoresJSON)
+	_, err = sqlutil.TxStmt(txn, s.upsertIgnoresStmt).ExecContext(ctx, userID, ignoresJSON)
 	return err
 }
diff --git a/syncapi/storage/postgres/notification_data_table.go b/syncapi/storage/postgres/notification_data_table.go
index 9cd8b736..708c3a9b 100644
--- a/syncapi/storage/postgres/notification_data_table.go
+++ b/syncapi/storage/postgres/notification_data_table.go
@@ -70,13 +70,13 @@ const selectUserUnreadNotificationCountsSQL = `SELECT
 
 const selectMaxNotificationIDSQL = `SELECT CASE COUNT(*) WHEN 0 THEN 0 ELSE MAX(id) END FROM syncapi_notification_data`
 
-func (r *notificationDataStatements) UpsertRoomUnreadCounts(ctx context.Context, userID, roomID string, notificationCount, highlightCount int) (pos types.StreamPosition, err error) {
-	err = r.upsertRoomUnreadCounts.QueryRowContext(ctx, userID, roomID, notificationCount, highlightCount).Scan(&pos)
+func (r *notificationDataStatements) UpsertRoomUnreadCounts(ctx context.Context, txn *sql.Tx, userID, roomID string, notificationCount, highlightCount int) (pos types.StreamPosition, err error) {
+	err = sqlutil.TxStmt(txn, r.upsertRoomUnreadCounts).QueryRowContext(ctx, userID, roomID, notificationCount, highlightCount).Scan(&pos)
 	return
 }
 
-func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error) {
-	rows, err := r.selectUserUnreadCounts.QueryContext(ctx, userID, fromExcl, toIncl)
+func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context, txn *sql.Tx, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error) {
+	rows, err := sqlutil.TxStmt(txn, r.selectUserUnreadCounts).QueryContext(ctx, userID, fromExcl, toIncl)
 	if err != nil {
 		return nil, err
 	}
@@ -101,8 +101,8 @@ func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context,
 	return roomCounts, rows.Err()
 }
 
-func (r *notificationDataStatements) SelectMaxID(ctx context.Context) (int64, error) {
+func (r *notificationDataStatements) SelectMaxID(ctx context.Context, txn *sql.Tx) (int64, error) {
 	var id int64
-	err := r.selectMaxID.QueryRowContext(ctx).Scan(&id)
+	err := sqlutil.TxStmt(txn, r.selectMaxID).QueryRowContext(ctx).Scan(&id)
 	return id, err
 }
diff --git a/syncapi/storage/shared/syncserver.go b/syncapi/storage/shared/syncserver.go
index b06d2c6a..778ad8b1 100644
--- a/syncapi/storage/shared/syncserver.go
+++ b/syncapi/storage/shared/syncserver.go
@@ -108,7 +108,7 @@ func (d *Database) MaxStreamPositionForAccountData(ctx context.Context) (types.S
 }
 
 func (d *Database) MaxStreamPositionForNotificationData(ctx context.Context) (types.StreamPosition, error) {
-	id, err := d.NotificationData.SelectMaxID(ctx)
+	id, err := d.NotificationData.SelectMaxID(ctx, nil)
 	if err != nil {
 		return 0, fmt.Errorf("d.NotificationData.SelectMaxID: %w", err)
 	}
@@ -1029,15 +1029,15 @@ func (d *Database) GetRoomReceipts(ctx context.Context, roomIDs []string, stream
 }
 
 func (d *Database) UpsertRoomUnreadNotificationCounts(ctx context.Context, userID, roomID string, notificationCount, highlightCount int) (pos types.StreamPosition, err error) {
-	err = d.Writer.Do(nil, nil, func(_ *sql.Tx) error {
-		pos, err = d.NotificationData.UpsertRoomUnreadCounts(ctx, userID, roomID, notificationCount, highlightCount)
+	err = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
+		pos, err = d.NotificationData.UpsertRoomUnreadCounts(ctx, txn, userID, roomID, notificationCount, highlightCount)
 		return err
 	})
 	return
 }
 
 func (d *Database) GetUserUnreadNotificationCounts(ctx context.Context, userID string, from, to types.StreamPosition) (map[string]*eventutil.NotificationData, error) {
-	return d.NotificationData.SelectUserUnreadCounts(ctx, userID, from, to)
+	return d.NotificationData.SelectUserUnreadCounts(ctx, nil, userID, from, to)
 }
 
 func (d *Database) SelectContextEvent(ctx context.Context, roomID, eventID string) (int, gomatrixserverlib.HeaderedEvent, error) {
@@ -1052,15 +1052,23 @@ func (d *Database) SelectContextAfterEvent(ctx context.Context, id int, roomID s
 }
 
 func (d *Database) IgnoresForUser(ctx context.Context, userID string) (*types.IgnoredUsers, error) {
-	return d.Ignores.SelectIgnores(ctx, userID)
+	return d.Ignores.SelectIgnores(ctx, nil, userID)
 }
 
 func (d *Database) UpdateIgnoresForUser(ctx context.Context, userID string, ignores *types.IgnoredUsers) error {
-	return d.Ignores.UpsertIgnores(ctx, userID, ignores)
+	return d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
+		return d.Ignores.UpsertIgnores(ctx, txn, userID, ignores)
+	})
 }
 
 func (d *Database) UpdatePresence(ctx context.Context, userID string, presence types.Presence, statusMsg *string, lastActiveTS gomatrixserverlib.Timestamp, fromSync bool) (types.StreamPosition, error) {
-	return d.Presence.UpsertPresence(ctx, nil, userID, statusMsg, presence, lastActiveTS, fromSync)
+	var pos types.StreamPosition
+	var err error
+	_ = d.Writer.Do(d.DB, nil, func(txn *sql.Tx) error {
+		pos, err = d.Presence.UpsertPresence(ctx, txn, userID, statusMsg, presence, lastActiveTS, fromSync)
+		return nil
+	})
+	return pos, err
 }
 
 func (d *Database) GetPresence(ctx context.Context, userID string) (*types.PresenceInternal, error) {
diff --git a/syncapi/storage/sqlite3/ignores_table.go b/syncapi/storage/sqlite3/ignores_table.go
index f4afca55..5ee1a9fa 100644
--- a/syncapi/storage/sqlite3/ignores_table.go
+++ b/syncapi/storage/sqlite3/ignores_table.go
@@ -19,6 +19,7 @@ import (
 	"database/sql"
 	"encoding/json"
 
+	"github.com/matrix-org/dendrite/internal/sqlutil"
 	"github.com/matrix-org/dendrite/syncapi/storage/tables"
 	"github.com/matrix-org/dendrite/syncapi/types"
 )
@@ -61,10 +62,10 @@ func NewSqliteIgnoresTable(db *sql.DB) (tables.Ignores, error) {
 }
 
 func (s *ignoresStatements) SelectIgnores(
-	ctx context.Context, userID string,
+	ctx context.Context, txn *sql.Tx, userID string,
 ) (*types.IgnoredUsers, error) {
 	var ignoresData []byte
-	err := s.selectIgnoresStmt.QueryRowContext(ctx, userID).Scan(&ignoresData)
+	err := sqlutil.TxStmt(txn, s.selectIgnoresStmt).QueryRowContext(ctx, userID).Scan(&ignoresData)
 	if err != nil {
 		return nil, err
 	}
@@ -76,12 +77,12 @@ func (s *ignoresStatements) SelectIgnores(
 }
 
 func (s *ignoresStatements) UpsertIgnores(
-	ctx context.Context, userID string, ignores *types.IgnoredUsers,
+	ctx context.Context, txn *sql.Tx, userID string, ignores *types.IgnoredUsers,
 ) error {
 	ignoresJSON, err := json.Marshal(ignores)
 	if err != nil {
 		return err
 	}
-	_, err = s.upsertIgnoresStmt.ExecContext(ctx, userID, ignoresJSON)
+	_, err = sqlutil.TxStmt(txn, s.upsertIgnoresStmt).ExecContext(ctx, userID, ignoresJSON)
 	return err
 }
diff --git a/syncapi/storage/sqlite3/notification_data_table.go b/syncapi/storage/sqlite3/notification_data_table.go
index eaa11a8c..66d4d438 100644
--- a/syncapi/storage/sqlite3/notification_data_table.go
+++ b/syncapi/storage/sqlite3/notification_data_table.go
@@ -72,7 +72,7 @@ const selectUserUnreadNotificationCountsSQL = `SELECT
 
 const selectMaxNotificationIDSQL = `SELECT CASE COUNT(*) WHEN 0 THEN 0 ELSE MAX(id) END FROM syncapi_notification_data`
 
-func (r *notificationDataStatements) UpsertRoomUnreadCounts(ctx context.Context, userID, roomID string, notificationCount, highlightCount int) (pos types.StreamPosition, err error) {
+func (r *notificationDataStatements) UpsertRoomUnreadCounts(ctx context.Context, txn *sql.Tx, userID, roomID string, notificationCount, highlightCount int) (pos types.StreamPosition, err error) {
 	pos, err = r.streamIDStatements.nextNotificationID(ctx, nil)
 	if err != nil {
 		return
@@ -81,8 +81,8 @@ func (r *notificationDataStatements) UpsertRoomUnreadCounts(ctx context.Context,
 	return
 }
 
-func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error) {
-	rows, err := r.selectUserUnreadCounts.QueryContext(ctx, userID, fromExcl, toIncl)
+func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context, txn *sql.Tx, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error) {
+	rows, err := sqlutil.TxStmt(txn, r.selectUserUnreadCounts).QueryContext(ctx, userID, fromExcl, toIncl)
 	if err != nil {
 		return nil, err
 	}
@@ -107,8 +107,8 @@ func (r *notificationDataStatements) SelectUserUnreadCounts(ctx context.Context,
 	return roomCounts, rows.Err()
 }
 
-func (r *notificationDataStatements) SelectMaxID(ctx context.Context) (int64, error) {
+func (r *notificationDataStatements) SelectMaxID(ctx context.Context, txn *sql.Tx) (int64, error) {
 	var id int64
-	err := r.selectMaxID.QueryRowContext(ctx).Scan(&id)
+	err := sqlutil.TxStmt(txn, r.selectMaxID).QueryRowContext(ctx).Scan(&id)
 	return id, err
 }
diff --git a/syncapi/storage/tables/interface.go b/syncapi/storage/tables/interface.go
index 468d26ac..193881b4 100644
--- a/syncapi/storage/tables/interface.go
+++ b/syncapi/storage/tables/interface.go
@@ -189,14 +189,14 @@ type Memberships interface {
 }
 
 type NotificationData interface {
-	UpsertRoomUnreadCounts(ctx context.Context, userID, roomID string, notificationCount, highlightCount int) (types.StreamPosition, error)
-	SelectUserUnreadCounts(ctx context.Context, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error)
-	SelectMaxID(ctx context.Context) (int64, error)
+	UpsertRoomUnreadCounts(ctx context.Context, txn *sql.Tx, userID, roomID string, notificationCount, highlightCount int) (types.StreamPosition, error)
+	SelectUserUnreadCounts(ctx context.Context, txn *sql.Tx, userID string, fromExcl, toIncl types.StreamPosition) (map[string]*eventutil.NotificationData, error)
+	SelectMaxID(ctx context.Context, txn *sql.Tx) (int64, error)
 }
 
 type Ignores interface {
-	SelectIgnores(ctx context.Context, userID string) (*types.IgnoredUsers, error)
-	UpsertIgnores(ctx context.Context, userID string, ignores *types.IgnoredUsers) error
+	SelectIgnores(ctx context.Context, txn *sql.Tx, userID string) (*types.IgnoredUsers, error)
+	UpsertIgnores(ctx context.Context, txn *sql.Tx, userID string, ignores *types.IgnoredUsers) error
 }
 
 type Presence interface {