There is no magic formula to increase your credit score by 100 points within a month. Points assigned vary from situation to situation. Improving your credit score first involves understanding what is causing your score to drop or remain the same. The major factors, like credit utilization rate and payment history, can be improved in multiple ways. These two factors make up more than 65% of your FICO® credit score.
To reduce your credit utilization, you need to spend as little as possible through your credit card. The maximum utilization rate must be no more than 30% of the credit limit. This way you will keep the amount of revolving credit as low as possible. You can also request an increase in credit limit while keeping your balances the same. Applying for a new credit card reduces your credit score by a few points because of a hard inquiry, but improves your score in the long run by increasing your average credit limit. Again, provided that the new credit card usage remains limited.
You could also take out a personal loan to pay off your credit card debt. This not only lowers your credit utilization, but also improves your credit mix because a personal loan is an installment loan (repaid in equal payments over months or years and by a specific date) while credit cards are a kind of revolving credit (allowing you to borrow money up to a set limit, repay it over time, and borrow again as needed).
.
