diff --git a/docs/README.md b/docs/README.md
index ebf20798..e0cf1965 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -1097,6 +1097,36 @@ size: "sm"
 size = "sm"
 ```
 <!-- tabs:end -->
+
+## donation-rate
+
+> **The ‘donationRate’ parameter represents the amount that will be donated to the donation address.**
+
+?> The donationRate parameter is optional values accepted are integers between 0-100. Default value is 2. 
+
+
+**Example:**
+<!-- tabs:start -->
+
+#### ** HTML **
+
+```html
+donation-rate="10"
+```
+
+#### ** JavaScript **
+
+```javascript
+donationRate: 10
+```
+
+#### ** React **
+
+```react
+donationRate = 10
+```
+<!-- tabs:end -->
+
 # Contribute
 
 PayButton is a community-driven open-source initiative. Contributions from the community are _crucial_ to the success of the project.
diff --git a/docs/_sidebar.md b/docs/_sidebar.md
index ccb5ad35..940e9fdb 100644
--- a/docs/_sidebar.md
+++ b/docs/_sidebar.md
@@ -33,6 +33,8 @@
   - [auto-close](/?id=auto-close)
   - [disable-sound](/?id=disable-sound)
   - [size](/?id=size)
+  - [donation-rate](/?id=donation-rate)
+
 - [Contribute](/?id=contribute)
   - [Developer Quick Start](/?id=developer-quick-start)
     - [Getting Started](/?id=getting-started)
diff --git a/docs/zh-cn/README.md b/docs/zh-cn/README.md
index 88359d78..2e5addaa 100644
--- a/docs/zh-cn/README.md
+++ b/docs/zh-cn/README.md
@@ -1097,6 +1097,36 @@ size = "sm"
 ```
 <!-- tabs:end -->
 
+## donation-rate
+
+> **「donationRate」参数用于设置将捐赠到捐赠地址的金额。**
+
+?> donationRate 参数是可选的，接受的值为 0 到 100 之间的整数。默认值为 2。
+
+
+**Example:**
+<!-- tabs:start -->
+
+#### ** HTML **
+
+```html
+donation-rate="10"
+```
+
+#### ** JavaScript **
+
+```javascript
+donationRate: 10
+```
+
+#### ** React **
+
+```react
+donationRate = 10
+```
+<!-- tabs:end -->
+
+
 # 贡献
 
 PayButton是一个社群主导的开放源代码促进会。此项目的成功关键在于对社群的贡献。
diff --git a/docs/zh-cn/_sidebar.md b/docs/zh-cn/_sidebar.md
index d357fd36..6acc45ce 100644
--- a/docs/zh-cn/_sidebar.md
+++ b/docs/zh-cn/_sidebar.md
@@ -32,6 +32,7 @@
   - [auto-close](/zh-cn/?id=auto-close)
   - [disable-sound](/zh-cn/?id=disable-sound)
   - [size](/zh-cn/?id=size)
+  - [donation-rate](/zh-cn/?id=donation-rate)
 - [贡献](/zh-cn/?id=贡献)
   - [开发人员快速入门](/zh-cn/?id=开发人员快速入门)
     - [入门](/zh-cn/?id=入门)
diff --git a/docs/zh-tw/README.md b/docs/zh-tw/README.md
index d97ff142..c93271f1 100644
--- a/docs/zh-tw/README.md
+++ b/docs/zh-tw/README.md
@@ -1093,6 +1093,35 @@ disableSound: false
 disableSound = false
 ```
 <!-- tabs:end -->
+## donation-rate
+
+> **「donationRate」參數用於設定將捐贈到捐贈地址的金額。**
+
+?> donationRate 參數是可選的，接受的值為 0 到 100 之間的整數。預設值為 2。
+
+
+**Example:**
+<!-- tabs:start -->
+
+#### ** HTML **
+
+```html
+donation-rate="10"
+```
+
+#### ** JavaScript **
+
+```javascript
+donationRate: 10
+```
+
+#### ** React **
+
+```react
+donationRate = 10
+```
+<!-- tabs:end -->
+
 
 # 貢獻
 
diff --git a/paybutton/src/index.tsx b/paybutton/src/index.tsx
index 29f597a2..d6d911bc 100644
--- a/paybutton/src/index.tsx
+++ b/paybutton/src/index.tsx
@@ -104,7 +104,8 @@ const allowedProps = [
   'autoClose',
   'disableSound',
   'transactionText',
-  'size'
+  'size',
+  'donationRate',
 ];
 
 const requiredProps = [
diff --git a/react/lib/components/PayButton/PayButton.tsx b/react/lib/components/PayButton/PayButton.tsx
index e33a406e..0824c486 100644
--- a/react/lib/components/PayButton/PayButton.tsx
+++ b/react/lib/components/PayButton/PayButton.tsx
@@ -3,7 +3,7 @@ import React, { useState, useEffect, useCallback, useRef } from 'react';
 import { Theme, ThemeName, ThemeProvider, useTheme } from '../../themes';
 import Button, { ButtonProps } from '../Button/Button';
 import { Socket } from 'socket.io-client';
-
+import config from '../../paybutton-config.json'
 import {
   Transaction,
   Currency,
@@ -19,7 +19,8 @@ import {
   setupAltpaymentSocket,
   setupChronikWebSocket,
   CryptoCurrency,
-  ButtonSize
+  ButtonSize,
+  DEFAULT_DONATION_RATE
 } from '../../util';
 import { PaymentDialog } from '../PaymentDialog';
 import { AltpaymentCoin, AltpaymentError, AltpaymentPair, AltpaymentShift } from '../../altpayment';
@@ -56,6 +57,8 @@ export interface PayButtonProps extends ButtonProps {
   contributionOffset?:number
   size?: ButtonSize;
   sizeScaleAlreadyApplied?: boolean;
+  donationAddress?: string;
+  donationRate?: number;
 }
 
 export const PayButton = ({
@@ -88,6 +91,8 @@ export const PayButton = ({
   contributionOffset,
   size = 'md',
   sizeScaleAlreadyApplied = false,
+  donationRate = DEFAULT_DONATION_RATE,
+  donationAddress = config.donationAddress
 }: PayButtonProps): React.ReactElement => {
   const [dialogOpen, setDialogOpen] = useState(false);
   const [disabled, setDisabled] = useState(false);
@@ -111,7 +116,6 @@ export const PayButton = ({
   const cryptoAmountRef = useRef<string | undefined>(cryptoAmount);
 
 
-
   const [paymentId] = useState(!disablePaymentId ? generatePaymentId(8) : undefined);
   const [addressType, setAddressType] = useState<CryptoCurrency>(
     getCurrencyTypeFromAddress(to),
@@ -204,6 +208,7 @@ export const PayButton = ({
           expectedOpReturn: opReturn,
           expectedPaymentId: paymentId,
           currencyObj,
+          donationRate
         }
       })
     }
@@ -347,6 +352,8 @@ export const PayButton = ({
         newTxs={newTxs}
         disableSound={disableSound}
         transactionText={transactionText}
+        donationAddress={donationAddress}
+        donationRate={donationRate}
       />
       {errorMsg && (
         <p
diff --git a/react/lib/components/PaymentDialog/PaymentDialog.tsx b/react/lib/components/PaymentDialog/PaymentDialog.tsx
index 71cfce94..e22d5c55 100644
--- a/react/lib/components/PaymentDialog/PaymentDialog.tsx
+++ b/react/lib/components/PaymentDialog/PaymentDialog.tsx
@@ -62,7 +62,9 @@ export interface PaymentDialogProps extends ButtonProps {
   newTxs?: Transaction[],
   autoClose?: boolean | number | string;
   disableSound?: boolean;
-  transactionText?: string
+  transactionText?: string;
+  donationAddress?: string;
+  donationRate?: number;
 }
 
 export const PaymentDialog = ({
@@ -122,6 +124,8 @@ export const PaymentDialog = ({
   transactionText,
   disabled,
   theme: themeProp,
+  donationAddress,
+  donationRate
 }: PaymentDialogProps): React.ReactElement => {
   const [success, setSuccess] = useState(false);
   const [internalDisabled, setInternalDisabled] = useState(false);
@@ -247,6 +251,8 @@ export const PaymentDialog = ({
           newTxs={newTxs}
           disableSound={disableSound}
           transactionText={transactionText}
+          donationAddress={donationAddress}
+          donationRate={donationRate}
           foot={success && (
             <ButtonComponent
               onClick={handleWidgetClose}
diff --git a/react/lib/components/Widget/Widget.tsx b/react/lib/components/Widget/Widget.tsx
index e5fe61a7..e77194af 100644
--- a/react/lib/components/Widget/Widget.tsx
+++ b/react/lib/components/Widget/Widget.tsx
@@ -12,6 +12,7 @@ import { Socket } from 'socket.io-client'
 import { Theme, ThemeName, ThemeProvider, useTheme } from '../../themes'
 import { Button, animation } from '../Button/Button'
 import BarChart from '../BarChart/BarChart'
+import config from '../../paybutton-config.json'
 import {
   getAddressBalance,
   Currency,
@@ -33,7 +34,10 @@ import {
   setupChronikWebSocket,
   setupAltpaymentSocket,
   CryptoCurrency,
-} from '../../util'
+  DEFAULT_DONATION_RATE,
+  DEFAULT_MINIMUM_DONATION_AMOUNT,
+  DONATION_RATE_FIAT_THRESHOLD
+} from '../../util';
 import AltpaymentWidget from './AltpaymentWidget'
 import {
   AltpaymentPair,
@@ -100,6 +104,8 @@ export interface WidgetProps {
   setAddressType?: Function
   newTxText?: string
   transactionText?: string
+  donationAddress?: string
+  donationRate?: number
 }
 
 interface StyleProps {
@@ -155,9 +161,10 @@ export const Widget: React.FunctionComponent<WidgetProps> = props => {
     altpaymentError,
     setAltpaymentError,
     isChild,
-  } = props
-
-  const [loading, setLoading] = useState(true)
+    donationAddress = config.donationAddress,
+    donationRate = DEFAULT_DONATION_RATE
+  } = props;
+  const [loading, setLoading] = useState(true);
 
   // websockets if standalone
   const [internalTxsSocket, setInternalTxsSocket] = useState<Socket | undefined>(undefined)
@@ -249,6 +256,12 @@ export const Widget: React.FunctionComponent<WidgetProps> = props => {
 
   const theme = useTheme(props.theme, isValidXecAddress(to))
 
+  const [thisAmount, setThisAmount] = useState(props.amount)
+  const [hasPrice, setHasPrice] = useState(props.price !== undefined && props.price > 0)
+  const [thisCurrencyObject, setThisCurrencyObject] = useState(props.currencyObject)
+
+  const blurCSS = isPropsTrue(disabled) ? { filter: 'blur(5px)' } : {}
+  const [donationAmount, setDonationAmount] = useState<number | null>(null)
   // inject keyframes once (replacement for @global in makeStyles)
   useEffect(() => {
     const id = 'paybutton-widget-keyframes'
@@ -388,12 +401,6 @@ export const Widget: React.FunctionComponent<WidgetProps> = props => {
     }
   }, [success, loading, theme, recentlyCopied, copied])
 
-  const [thisAmount, setThisAmount] = useState(props.amount)
-  const [hasPrice, setHasPrice] = useState(props.price !== undefined && props.price > 0)
-  const [thisCurrencyObject, setThisCurrencyObject] = useState(props.currencyObject)
-
-  const blurCSS = isPropsTrue(disabled) ? { filter: 'blur(5px)' } : {}
-
   const bchSvg = useMemo((): string => {
     const color = theme.palette.logo ?? theme.palette.primary
     return `data:image/svg+xml,%3C%3Fxml version='1.0' encoding='UTF-8'%3F%3E%3Csvg version='1.1' viewBox='0 0 34 34' xmlns='http://www.w3.org/2000/svg'%3E%3Cg transform='translate(1,1)'%3E%3Ccircle cx='16' cy='16' r='17' fill='%23fff' stroke-width='1.0625'/%3E%3C/g%3E%3Cg transform='translate(1,1)' fill-rule='evenodd'%3E%3Ccircle cx='16' cy='16' r='16' fill='${window.encodeURIComponent(
@@ -565,11 +572,33 @@ export const Widget: React.FunctionComponent<WidgetProps> = props => {
         ? getCurrencyObject(convertedAmount, thisAddressType, randomSatoshis)
         : null
       if (convertedObj) {
+        let amountToDisplay = thisCurrencyObject.string;
+        let convertedAmountToDisplay = convertedObj.string
+        if ( donationRate && donationRate >= DONATION_RATE_FIAT_THRESHOLD){
+          const thisDonationAmount = thisCurrencyObject.float * (donationRate / 100)
+          const amountWithDonation = thisCurrencyObject.float + thisDonationAmount
+          const amountWithDonationObj = getCurrencyObject(
+            amountWithDonation,
+            currency,
+            false,
+          )
+          amountToDisplay = amountWithDonationObj.string
+
+          const convertedDonationAmount = convertedObj.float * (donationRate / 100)
+          const convertedAmountWithDonation = convertedObj.float + convertedDonationAmount
+          const convertedAmountWithDonationObj = getCurrencyObject(
+            convertedAmountWithDonation,
+            thisAddressType,
+            randomSatoshis,
+          )
+          convertedAmountToDisplay = convertedAmountWithDonationObj.string
+          setDonationAmount(convertedAmountWithDonationObj.float)
+        }
         setText(
-          `Send ${thisCurrencyObject.string} ${thisCurrencyObject.currency} = ${convertedObj.string} ${thisAddressType}`,
+          `Send ${amountToDisplay} ${thisCurrencyObject.currency} = ${convertedAmountToDisplay} ${thisAddressType}`,
         )
-        nextUrl = resolveUrl(thisAddressType, convertedObj.float)
-        setUrl(nextUrl ?? '')
+        const url = resolveUrl(thisAddressType, convertedObj.float)
+        setUrl(url ?? "")
       }
     } else {
       const notZeroValue =
@@ -660,20 +689,38 @@ export const Widget: React.FunctionComponent<WidgetProps> = props => {
     setRecentlyCopied(true)
   }, [disabled, to, url, setCopied, setRecentlyCopied])
 
-  const resolveUrl = useCallback(
-    (currencyCode: string, amount?: number) => {
-      if (disabled || !to) return
-      const prefix = CURRENCY_PREFIXES_MAP[currencyCode.toLowerCase() as (typeof CRYPTO_CURRENCIES)[number]]
-      if (!prefix) return
-      let thisUrl = `${prefix}:${to.replace(/^.*:/, '')}`
-      if (amount) {
+  const resolveUrl = useCallback((currency: string, amount?: number) => {
+    if (disabled || !to) return;
+
+    const prefix = CURRENCY_PREFIXES_MAP[currency.toLowerCase() as typeof CRYPTO_CURRENCIES[number]];
+    if (!prefix) return;
+
+    let thisUrl = `${prefix}:${to.replace(/^.*:/, '')}`;
+
+    if (amount) {
+      if (donationAddress && donationRate && Number(donationRate)) {
+        const network = Object.entries(CURRENCY_PREFIXES_MAP).find(
+          ([, value]) => value === prefix
+        )?.[0];
+        const decimals = network ? DECIMALS[network.toUpperCase()] : undefined;
+        const donationPercent = donationRate / 100
+        const thisDonationAmount = donationAmount ? donationAmount : amount * donationPercent
+        const minimumDonationAmount = network ? DEFAULT_MINIMUM_DONATION_AMOUNT[network.toUpperCase()] : 0;
+        thisUrl += `?amount=${amount}`
+        if(thisDonationAmount > minimumDonationAmount){
+          thisUrl += `&addr=${donationAddress}&amount=${thisDonationAmount.toFixed(decimals)}`;
+        }
+      }else{
         thisUrl += `?amount=${amount}`
       }
-      if (opReturn) {
-        const separator = thisUrl.includes('?') ? '&' : '?'
-        thisUrl += `${separator}op_return_raw=${opReturn}`
-      }
-      return thisUrl
+    }
+
+    if (opReturn) {
+      const separator = thisUrl.includes('?') ? '&' : '?';
+      thisUrl += `${separator}op_return_raw=${opReturn}`;
+    }
+
+    return thisUrl;
     },
     [disabled, to, opReturn]
   )
diff --git a/react/lib/components/Widget/WidgetContainer.tsx b/react/lib/components/Widget/WidgetContainer.tsx
index 37ace822..af95d88c 100644
--- a/react/lib/components/Widget/WidgetContainer.tsx
+++ b/react/lib/components/Widget/WidgetContainer.tsx
@@ -19,6 +19,7 @@ import {
   resolveNumber,
   shouldTriggerOnSuccess,
   isPropsTrue,
+  DEFAULT_DONATION_RATE,
 } from '../../util';
 
 import Widget, { WidgetProps } from './Widget';
@@ -51,6 +52,8 @@ export interface WidgetContainerProps
   setNewTxs: Function
   disableSound?: boolean
   transactionText?: string
+  donationAddress?: string
+  donationRate?: number
 }
 
 const snackbarOptionsSuccess: OptionsObject = {
@@ -131,6 +134,8 @@ export const WidgetContainer: React.FunctionComponent<WidgetContainerProps> =
       isChild,
       disableSound,
       transactionText,
+      donationAddress,
+      donationRate,
       ...widgetProps
     } = props;
     const [internalCurrencyObj, setInternalCurrencyObj] = useState<CurrencyObject>();
@@ -139,7 +144,9 @@ export const WidgetContainer: React.FunctionComponent<WidgetContainerProps> =
     const [internalNewTxs, setInternalNewTxs] = useState<Transaction[] | undefined>();
     const thisNewTxs = setNewTxs ? newTxs : internalNewTxs;
     const thisSetNewTxs = setNewTxs ?? setInternalNewTxs;
-
+    if (donationRate === undefined){
+      donationRate = DEFAULT_DONATION_RATE
+    }
     const [thisPaymentId, setThisPaymentId] = useState<string | undefined>();
     const [thisPrice, setThisPrice] = useState(0);
     const [usdPrice, setUsdPrice] = useState(0);
@@ -238,7 +245,8 @@ export const WidgetContainer: React.FunctionComponent<WidgetContainerProps> =
         altpaymentShift,
         thisPrice,
         currencyObj,
-        randomSatoshis
+        randomSatoshis,
+        donationRate
       ],
     );
 
@@ -316,6 +324,8 @@ export const WidgetContainer: React.FunctionComponent<WidgetContainerProps> =
           disableAltpayment={disableAltpayment}
           contributionOffset={contributionOffset}
           transactionText={transactionText}
+          donationAddress={donationAddress}
+          donationRate={donationRate}
         />
       </React.Fragment>
     );
diff --git a/react/lib/example-config.json b/react/lib/example-config.json
index 728432f0..96c153f1 100644
--- a/react/lib/example-config.json
+++ b/react/lib/example-config.json
@@ -15,5 +15,6 @@
       "https://chronik.pay2stay.com/xec2"
     ],
     "bitcoincash": ["https://bch.paybutton.org", "https://chronik.pay2stay.com/bch"]
-  }
+  },
+  "donationAddress":"ecash:qp2v7kemclu7mv5y3h9qprwp0mrevkqt9gprvmm7yl"
 }
diff --git a/react/lib/util/constants.ts b/react/lib/util/constants.ts
index a9d873e9..448b32c2 100644
--- a/react/lib/util/constants.ts
+++ b/react/lib/util/constants.ts
@@ -16,4 +16,14 @@ export const CURRENCY_PREFIXES_MAP: Record<typeof CRYPTO_CURRENCIES[number], str
     xec: 'ecash',
 };
 
-export type ButtonSize = 'xs' | 'sm' | 'md' | 'lg' | 'xl' | "extrasmall" | "small" | "medium" | "large" | "extralarge" | undefined;
\ No newline at end of file
+export type ButtonSize = 'xs' | 'sm' | 'md' | 'lg' | 'xl' | "extrasmall" | "small" | "medium" | "large" | "extralarge" | undefined;
+
+export const DEFAULT_DONATION_RATE = 2;
+
+export const DONATION_RATE_FIAT_THRESHOLD = 5;
+
+
+export const DEFAULT_MINIMUM_DONATION_AMOUNT: { [key: string]: number } = {
+    BCH: 0.00001000,
+    XEC: 10,
+};
diff --git a/react/lib/util/types.ts b/react/lib/util/types.ts
index 8ea4ac95..9ca41d6c 100644
--- a/react/lib/util/types.ts
+++ b/react/lib/util/types.ts
@@ -154,5 +154,6 @@ export interface CheckSuccessInfo {
   expectedPaymentId?: string
   expectedAmount?: BigNumber | number
   expectedOpReturn?: string,
-  currencyObj?: CurrencyObject
+  currencyObj?: CurrencyObject,
+  donationRate?: number
 }