It depends on the specifics of why your score is low in the first place. If your score dropped after a single missed payment, you can likely boost your score in as little as 30 days once you’ve made the payment. If your credit is low due to multiple missed payments or collection accounts, it will take a few months of positive credit habits to move the needle on your score. The answer to how to raise your credit score, along with how long it will take, will always vary depending on your unique circumstance.