If you spend over 10,000 yen, taxes included, you'll get XX!
All purchases totalling 10,000 yen or more including tax come with a XX!
この場合、次のような言い方ができますよ。
ーIf you spend over 10,000 yen, taxes included, you'll get XX!
「税込1万円以上お買い上げで、XXをプレゼント！」
ーAll purchases totalling 10,000 yen or more including tax come with a XX!
「税込1万円以上購入で、XXがついてくる！」
ご参考まで！
カナダ 
