diff --git a/.changeset/seven-ravens-rest.md b/.changeset/seven-ravens-rest.md
new file mode 100644
index 000000000000..8a4f89f57f08
--- /dev/null
+++ b/.changeset/seven-ravens-rest.md
@@ -0,0 +1,5 @@
+---
+"ledger-live-desktop": minor
+---
+
+LLD: LIVE-15143 use a debounce on the memotag field
diff --git a/apps/ledger-live-desktop/src/newArch/features/MemoTag/__tests__/MemoTagField.test.tsx b/apps/ledger-live-desktop/src/newArch/features/MemoTag/__tests__/MemoTagField.test.tsx
index 8e75955c2f66..6dc92249e143 100644
--- a/apps/ledger-live-desktop/src/newArch/features/MemoTag/__tests__/MemoTagField.test.tsx
+++ b/apps/ledger-live-desktop/src/newArch/features/MemoTag/__tests__/MemoTagField.test.tsx
@@ -7,6 +7,14 @@ import { render, screen, fireEvent } from "tests/testUtils";
 import MemoTagField from "../components/MemoTagField";
 
 describe("MemoTagField", () => {
+  beforeAll(() => {
+    jest.useFakeTimers();
+  });
+
+  afterAll(() => {
+    jest.useRealTimers();
+  });
+
   it("renders MemoTagField with label and text field", () => {
     render(<MemoTagField showLabel={true} />);
     expect(screen.getByText(/Tag \/ Memo/gi)).toBeInTheDocument();
@@ -19,12 +27,14 @@ describe("MemoTagField", () => {
     expect(screen.queryByText(/Tag \/ Memo/gi)).not.toBeInTheDocument();
   });
 
-  it("should call onChange when input value changes", () => {
+  it("should call onChange when input value changes with a debounce", () => {
     const handleChange = jest.fn();
     render(<MemoTagField onChange={handleChange} />);
     fireEvent.change(screen.getByPlaceholderText(/Enter Tag \/ Memo/gi), {
       target: { value: "new memo" },
     });
+    expect(handleChange).not.toHaveBeenCalled();
+    jest.runAllTimers();
     expect(handleChange).toHaveBeenCalledTimes(1);
   });
 
diff --git a/apps/ledger-live-desktop/src/newArch/features/MemoTag/components/MemoTagField.tsx b/apps/ledger-live-desktop/src/newArch/features/MemoTag/components/MemoTagField.tsx
index a6be608741a6..c54b41585285 100644
--- a/apps/ledger-live-desktop/src/newArch/features/MemoTag/components/MemoTagField.tsx
+++ b/apps/ledger-live-desktop/src/newArch/features/MemoTag/components/MemoTagField.tsx
@@ -1,12 +1,12 @@
-import React from "react";
+import React, { useState, useEffect } from "react";
 import Input, { Props as InputBaseProps } from "~/renderer/components/Input";
+import { useDebounce } from "@ledgerhq/live-common//hooks/useDebounce";
 import Label from "~/renderer/components/Label";
 import Box from "~/renderer/components/Box";
 import { useTranslation } from "react-i18next";
 import { Flex, Text, Tooltip } from "@ledgerhq/react-ui";
 import styled from "styled-components";
 import InfoCircle from "~/renderer/icons/InfoCircle";
-
 const TooltipContainer = styled(Box)`
   background-color: ${({ theme }) => theme.colors.palette.neutral.c100};
   padding: 10px;
@@ -30,6 +30,7 @@ type MemoTagFieldProps = InputBaseProps & {
   placeholder?: string;
   label?: string;
   tooltipText?: string;
+  validationHandler?: (newValue: string) => string;
 };
 
 const MemoTagField = ({
@@ -44,8 +45,20 @@ const MemoTagField = ({
   placeholder,
   label,
   tooltipText,
+  validationHandler,
 }: MemoTagFieldProps) => {
   const { t } = useTranslation();
+  const [memoValue, setMemoValue] = useState(value);
+  const debouncedMemoValue = useDebounce(memoValue, 300);
+
+  useEffect(() => {
+    if (debouncedMemoValue !== value) onChange?.(debouncedMemoValue || "");
+  }, [debouncedMemoValue, onChange, value]);
+
+  const handleChange = (newValue: string) => {
+    setMemoValue(validationHandler ? validationHandler(newValue) : newValue);
+  };
+
   return (
     <Box flow={1}>
       {showLabel && (
@@ -68,10 +81,10 @@ const MemoTagField = ({
         <Flex justifyContent="end">{CaracterCountComponent && <CaracterCountComponent />}</Flex>
         <Input
           placeholder={placeholder ?? t("MemoTagField.placeholder")}
-          onChange={onChange}
+          onChange={handleChange}
           warning={warning}
           error={error}
-          value={value}
+          value={memoValue}
           spellCheck="false"
           ff="Inter"
           maxMemoLength={maxMemoLength}
diff --git a/apps/ledger-live-desktop/src/renderer/families/casper/MemoField.tsx b/apps/ledger-live-desktop/src/renderer/families/casper/MemoField.tsx
index 7aa6d2db2f7b..5183e649d2fa 100644
--- a/apps/ledger-live-desktop/src/renderer/families/casper/MemoField.tsx
+++ b/apps/ledger-live-desktop/src/renderer/families/casper/MemoField.tsx
@@ -14,7 +14,6 @@ const MemoField = ({ onChange, account, transaction, status, autoFocus }: MemoTa
 
   const onTransferIdFieldChange = useCallback(
     (value: string) => {
-      value = value.replace(/\D/g, "");
       if (value !== "") onChange(bridge.updateTransaction(transaction, { transferId: value }));
       else onChange(bridge.updateTransaction(transaction, { transferId: undefined }));
     },
@@ -32,6 +31,7 @@ const MemoField = ({ onChange, account, transaction, status, autoFocus }: MemoTa
       onChange={onTransferIdFieldChange}
       spellCheck="false"
       autoFocus={autoFocus}
+      validationHandler={newValue => newValue.replace(/\D/g, "")}
     />
   );
 };
diff --git a/apps/ledger-live-desktop/src/renderer/families/xrp/SendRecipientFields.tsx b/apps/ledger-live-desktop/src/renderer/families/xrp/SendRecipientFields.tsx
index 14b073addb19..8c9a3e56239d 100644
--- a/apps/ledger-live-desktop/src/renderer/families/xrp/SendRecipientFields.tsx
+++ b/apps/ledger-live-desktop/src/renderer/families/xrp/SendRecipientFields.tsx
@@ -15,7 +15,7 @@ const TagField = ({ onChange, account, transaction, autoFocus }: Props) => {
   const onChangeTag = useCallback(
     (str: string) => {
       const bridge = getAccountBridge(account);
-      const tag = BigNumber(str.replace(/[^0-9]/g, ""));
+      const tag = BigNumber(str);
       const patch = {
         tag:
           !tag.isNaN() &&
@@ -37,6 +37,7 @@ const TagField = ({ onChange, account, transaction, autoFocus }: Props) => {
       value={String(transaction.tag || "")}
       onChange={onChangeTag}
       autoFocus={autoFocus}
+      validationHandler={str => str.replace(/[^0-9]/g, "")}
     />
   );
 };