diff --git a/src/Form/POSForm.php b/src/Form/POSForm.php
index 1519c24..9cd4448 100644
--- a/src/Form/POSForm.php
+++ b/src/Form/POSForm.php
@@ -249,16 +249,11 @@ class POSForm extends ContentEntityForm {
       $number_formatter = $number_formatter_factory->createInstance();
       $order_balance_amount_format = $number_formatter->formatCurrency($order_balance->getNumber(), Currency::load($order_balance->getCurrencyCode()));
       $keypad_amount = preg_replace('/[^0-9\.,]/', '', $order_balance_amount_format);
-      // Fetching fraction digit to set as step.
-      $fraction_digits = $this->currentStore->getStore()
-        ->getDefaultCurrency()
-        ->getFractionDigits();
       $form['keypad']['amount'] = [
-        '#type' => 'number',
+        '#type' => 'textfield',
         '#title' => $this->t('Enter @title Amount', [
           '@title' => $payment_gateways[$option_id]->label(),
         ]),
-        '#step' => pow(0.1, $fraction_digits),
         '#required' => TRUE,
         '#default_value' => $keypad_amount,
         '#commerce_pos_keypad' => TRUE,
@@ -444,12 +439,22 @@ class POSForm extends ContentEntityForm {
    */
   public function validatePaymentForm(array $form, FormStateInterface $form_state) {
     $triggering_element = $form_state->getTriggeringElement();
+
     if ($triggering_element['#name'] == 'commerce-pos-pay-keypad-add') {
       $keypad_amount = $form_state->getValue('keypad')['amount'];
 
       if (!is_numeric($keypad_amount)) {
         $form_state->setError($form['keypad']['amount'], $this->t('Payment amount must be a number.'));
       }
+
+      /** @var int $fraction_digits */
+      $fraction_digits = $this->currentStore->getStore()
+        ->getDefaultCurrency()
+        ->getFractionDigits();
+      list($whole, $decimal) = sscanf($keypad_amount, '%d.%d');
+      if (strlen($decimal) > $fraction_digits) {
+        $form_state->setError($form['keypad']['amount'], $this->t('The amount should be of two digit precision.'));
+      }
     }
   }