Change it with social security first. Then change it with all you creditors that report to the 3 credit agencies. (Credit Cards, Bank Loans, etc. Utility Companies usually don't report unless it goes to collections.) After a few months the creditors will start to report with the same SS# and your new name. (Gender is not on the credit report anywhere.) The only bad thing is that on Experian, any previous name will show up on your report (for up to 7 years.) So basically your credit report can out you, but only if it's a detailed report. (Like a Mortgage or car loan would require.) Sometimes you can ask to have it removed but it usually doesn't work.
I changed my name last June (right after I leased a new Honda CRV) and last week applied for a Lane Bryant card. It was the first time I had applied for credit since my name change. I was approved and didn't have any issues. I went on the annual credit report site (the one you get for free once a year) to see if everything was on there. The Experian it gave me, and everything on my old one from last year was still there with the changes from the last year. The other two (Experian and TransUnion), said I had to mail in the form and send proof with a photocopy of SSN and Driver's License. I should get those in a few weeks and find out what they say. I've heard that they sometimes start a new file, others say they don't. I guess I'm going to find out.
Also my wife ran hers and on two of them it had my new name on the joint accounts but said she was married to my old name.
Also if you don't have anything reporting, you can send a letter to each of them to the following addresses:
Equifax
P.O. Box 740256
Atlanta, GA 30374
TransUnion LLC
P.O. Box 2000
Chester, PA 19022
Experian
National Consumer Assistance Center
P.O. Box 2002
Allen, TX 75013
An example letter format should be:
QuoteRe: Request to change name on credit report
Dear Sir or Madam:
My credit information with your company current is currently held under my previous name: Full previous name. However, I have recently changed my name and now am legally known as: Full new name.
This letter is my formal request that you change your records to reflect my new legal name.
If you have any questions about these changes, you can contact me by mail at my new address or by telephone at work phone number during business hours.
I also am enclosing a copy of my court order. This will verify my name change and ensure accurate spelling on my updated credit report.
Thank you for your prompt attention to my request.
Your Signature
Your Typed Name
Your Address
City, State and ZIP Code
Enclosure: Court order (copy)