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How long to wait after getting a mortgage to increase my credit limit?
I'm not sure what raising your credit limit would do to your score in the short term.  I don't think it's a clear win, though.  Your percent utilization will go down (more available credit for the same amount of debt) but your available credit will also go up, which may be a negative, since potentially you can default on more debt. If you're interested in monitoring your score, Credit Karma will let you do that for free.