Can I change my monthly installment amount? March 30, 2023 13:55 Updated No. When you buy using Splitit, the total purchase price is divided into equal monthly instalments and this cannot be changed. To find out for about payments, click here. Related articles Can I pay my plan in full early? Can I change my payment date? Can I make additional payments on my installment plan? How do I update my credit card? Can I change the card I use to pay my Splitit installments from my credit card to my debit card? Comments 0 comments Please sign in to leave a comment.