diff --git a/includes/admin/settings/class-wc-settings-tax.php b/includes/admin/settings/class-wc-settings-tax.php
index 1f9d1107c01..d9a4c77aeac 100644
--- a/includes/admin/settings/class-wc-settings-tax.php
+++ b/includes/admin/settings/class-wc-settings-tax.php
@@ -553,7 +553,7 @@ class WC_Settings_Tax extends WC_Settings_Page {
 					$state    = strtoupper( wc_clean( $tax_rate_state[ $key ][ $new_key ] ) );
 					$postcode = wc_clean( $tax_rate_postcode[ $key ][ $new_key ] );
 					$city     = wc_clean( $tax_rate_city[ $key ][ $new_key ] );
-					$rate     = number_format( wc_clean( $tax_rate[ $key ][ $new_key ] ), 4, '.', '' );
+					$rate     = number_format( (double) wc_clean( $tax_rate[ $key ][ $new_key ] ), 4, '.', '' );
 					$name     = wc_clean( $tax_rate_name[ $key ][ $new_key ] );
 					$priority = absint( wc_clean( $tax_rate_priority[ $key ][ $new_key ] ) );
 					$compound = isset( $tax_rate_compound[ $key ][ $new_key ] ) ? 1 : 0;