diff --git a/androidutils/src/main/java/com/xihad/androidutils/AndroidUtils.kt b/androidutils/src/main/java/com/xihad/androidutils/AndroidUtils.kt
index 9c5b3b2..c7e730e 100644
--- a/androidutils/src/main/java/com/xihad/androidutils/AndroidUtils.kt
+++ b/androidutils/src/main/java/com/xihad/androidutils/AndroidUtils.kt
@@ -51,6 +51,8 @@ class AndroidUtils private constructor() {
 
         fun getDebounceUtils(): DebounceUtils = DebounceUtils
 
+        fun getPaymentUtils(): PaymentUtils = PaymentUtils
+
 
         /**
          * Quick Access methods
@@ -80,6 +82,8 @@ class AndroidUtils private constructor() {
         fun getJsonFromAsset(context: Context, fileName: String) =
             Utils.getJsonFromAsset(context, fileName)
 
+        fun validateEmailAddress(email: String?) = Utils.validateEmailAddress(email)
+
 
         /**
          * ApplicationUtil
@@ -105,6 +109,19 @@ class AndroidUtils private constructor() {
         fun decrypt(value: String) = EncryptionUtil.decrypt(value)
 
 
+        /**
+         * PaymentUtils
+         */
+        fun getIncludingTax(total: Double, tax: Double) = PaymentUtils.getIncludingTax(total, tax)
+
+        fun getExcludingTax(total: Double, tax: Double) = PaymentUtils.getExcludingTax(total, tax)
+
+        fun twoDigitDouble(value: Double) = PaymentUtils.twoDigitDouble(value)
+
+        fun twoDigitString(value: Double) = PaymentUtils.twoDigitString(value)
+
+        fun stringToNumber(inputNumber: String) = PaymentUtils.stringToNumber(inputNumber)
+
 
         /**
          * show a Toast in simple way
diff --git a/androidutils/src/main/java/com/xihad/androidutils/utils/PaymentUtils.kt b/androidutils/src/main/java/com/xihad/androidutils/utils/PaymentUtils.kt
new file mode 100644
index 0000000..ff1c446
--- /dev/null
+++ b/androidutils/src/main/java/com/xihad/androidutils/utils/PaymentUtils.kt
@@ -0,0 +1,166 @@
+package com.xihad.androidutils.utils
+
+import android.annotation.SuppressLint
+import java.text.DecimalFormat
+import java.util.*
+import kotlin.math.ceil
+
+object PaymentUtils {
+
+
+    fun getIncludingTax(total: Double, tax: Double): Double {
+        // VAT amount = Value inclusive of tax X tax rate ÷ (100 + tax rate)
+        return twoDigitDouble(total * tax / (100 + tax))
+    }
+
+    fun getExcludingTax(total: Double, tax: Double): Double {
+        return twoDigitDouble(total * tax / 100)
+    }
+
+
+
+
+    @SuppressLint("DefaultLocale")
+    fun twoDigitDouble(value: Double): Double {
+        var newVal = 0.00
+        try {
+            newVal = String.format(" %.2f", value).toDouble()
+        } catch (e: Exception) {
+            e.printStackTrace()
+        }
+        return newVal
+    }
+
+    @SuppressLint("DefaultLocale")
+    fun twoDigitString(value: Double): String {
+        var newVal = ""
+        newVal = try {
+            String.format(" %.2f", value)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            value.toString()
+        }
+        return newVal
+    }
+
+    fun stringToNumber(inputNumber: String): Double {
+        var outputNumber = 0.00
+        try {
+            outputNumber = inputNumber.toDouble()
+        } catch (e: NumberFormatException) {
+            e.printStackTrace()
+        }
+        return outputNumber
+    }
+
+    fun getCashOption(totalPrice: Double): List<CashModel> {
+
+        val cashList: MutableList<CashModel> = ArrayList()
+        val decimalFormat = DecimalFormat("#.00")
+        val currencyArray: MutableList<Double> = ArrayList()
+        if (totalPrice > 0.00) {
+            currencyArray.add(twoDigitDouble(totalPrice))
+            var gtm5 = totalPrice % 5
+            gtm5 = decimalFormat.format(gtm5).toDouble()
+            if (gtm5 != 0.0) {
+                currencyArray.add(twoDigitDouble(totalPrice - gtm5 + 5))
+            }
+            var gtm10 = totalPrice % 10
+            gtm10 = decimalFormat.format(gtm10).toDouble()
+            if (gtm10 != 0.0) {
+                currencyArray.add(twoDigitDouble(totalPrice - gtm10 + 10))
+            }
+            var gtm20 = totalPrice % 20
+            if (gtm20 != 0.0) {
+                gtm20 = decimalFormat.format(gtm20).toDouble()
+                currencyArray.add(twoDigitDouble(totalPrice - gtm20 + 20))
+            }
+            var gtm50 = totalPrice % 50
+            if (gtm50 != 0.0) {
+                gtm50 = decimalFormat.format(gtm50).toDouble()
+                currencyArray.add(twoDigitDouble(totalPrice - gtm50 + 50))
+            }
+            if (currencyArray.isNotEmpty() && currencyArray[0] % 1 != 0.0) {
+                currencyArray.add(1, twoDigitDouble(ceil(currencyArray[0])))
+            }
+            val hs: Set<Double> = HashSet(currencyArray)
+            currencyArray.clear()
+            currencyArray.addAll(hs)
+            currencyArray.sort()
+            if (currencyArray.size == 6) currencyArray.removeAt(5)
+            currencyArray.add(-5.5)
+            for (i in currencyArray.indices) {
+                val cashModel = CashModel()
+                if (i == 0) {
+                    if (currencyArray[i] == 5.501) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+                if (i == 1) {
+                    if (currencyArray[i] == -5.5) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+                if (i == 2) {
+                    if (currencyArray[i] == -5.5) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+                if (i == 3) {
+                    if (currencyArray[i] == -5.5) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+                if (i == 4) {
+                    if (currencyArray[i] == -5.5) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+                if (i == 5) {
+                    if (currencyArray[i] == -5.5) {
+                        cashModel.amount = 0.0
+                        cashModel.labelAmount = "Custom"
+                    } else {
+                        cashModel.labelAmount = twoDigitString(currencyArray[i])
+                        cashModel.amount = twoDigitDouble(currencyArray[i])
+                    }
+                    cashList.add(cashModel)
+                }
+            }
+        }
+        return cashList
+    }
+
+
+}
+
+class CashModel {
+    var labelAmount = ""
+    var amount = 0.0
+    var isSelected = false
+}
\ No newline at end of file
diff --git a/androidutils/src/main/java/com/xihad/androidutils/utils/Utils.kt b/androidutils/src/main/java/com/xihad/androidutils/utils/Utils.kt
index 81ba3c8..eb7441b 100644
--- a/androidutils/src/main/java/com/xihad/androidutils/utils/Utils.kt
+++ b/androidutils/src/main/java/com/xihad/androidutils/utils/Utils.kt
@@ -7,9 +7,19 @@ import java.io.IOException
 import java.text.DecimalFormat
 import java.text.DecimalFormatSymbols
 import java.util.*
+import java.util.regex.Pattern
 
 object Utils {
 
+
+    fun validateEmailAddress(email: String?): Boolean {
+        val address =
+            Pattern.compile("^[A-Z0-9._%+-]+@[A-Z0-9.-]+\\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE)
+        val matcher = email?.let { address.matcher(it) }
+        return matcher?.find() ?: false
+    }
+
+
     fun postDelayed(milliSecond: Long, func: () -> Unit) {
         Handler(Looper.getMainLooper()).postDelayed({
             func()