Here’s whats recommend to get a quick rise out of your credit score:
Dispute Credit-Report Mistakes: Removing negative information from your credit report is perhaps the best way to generate substantial short-term credit-score improvement. But you can remove such information only if it’s wrong or the result of fraud.
So go over your report with a fine-tooth comb, cross-referencing each item with your own financial records. If you find something fishy, investigate it further and, if necessary, file a dispute with the credit bureau.
Become An ‘Authorized User’: If your spouse or other family member has excellent credit, ask him or her to add you as an authorized user on an existing credit card (preferably the oldest one with the highest credit limit and no negative records). This might take too long to process to benefit you in a month’s time, but it should provide a bump pretty quickly.
Request Removal Of Negative ‘Authorized-User’ Records: Not many people know this, but if you are/were an authorized user on an account that is dragging down your credit score because of negative information, you can simply ask the credit bureau to remove the record from your credit report. Authorized users are not responsible for unpaid balances, for example, but they can still benefit from responsible use by the primary accountholder.
Write A ‘Goodwill’ Letter: If your credit report bears only a minor blemish — perhaps a notation for one late payment — and the rest of your credit history is solid, you have the option of essentially asking the issuer for a favor. This could be as simple as calling them and making a case for why your past transgression should be forgiven and stricken from the record, so to speak. Or you could send an official “Goodwill Adjustment Letter,” which formalizes the request. This is easiest to achieve before a negative record actually makes its way to your credit report, but it’s worth a shot afterward as well.
Ask For A Higher Credit Limit: More available credit will reduce your overall credit utilization ratio, a key component of your credit score. However, many credit-card issuers will re-check your credit history — causing a hard inquiry and short-term credit-score damage — before approving a higher limit. So make sure to ask about your creditor’s policies before formally requesting a boost in your credit line.
Similarly, you should make sure that all of your credit limits are expressed accurately on your credit reports. If the listed limit is lower than it should be, ask the issuer to report an updated figure to the credit bureaus. Take note, however, that if you have an “NPSL” credit card, there might not be much you can do about an unusually reported credit limit.
Make A Big Debt Payment: If you’re carrying a credit-card balance from month to month or your end-of-month balance is high relative to your spending limit, both making a larger payment than normal and paying earlier than usual could help your credit score. If you can, try to reduce your credit utilization to less than 30% (below 10% is optimal) across all of your credit lines. The same principle applies to any loan without a prepayment penalty, too.
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