My traditional IRA custodian filed form 5498 with a wrong tax year. I
opened the account and sent deposit in Feb.,2005 meaning the deposit
is for the tax year of 2004.  I filed a tax return for the year 2004
claiming deduction.  Recently I received form 5498 which indicates
that the deposit was recorded for the tax year 2005.

The custodian refuses to re-file the form because I haven't indicated
the tax year on the check and it was more than 6 months since the
deposit.

What can/should be done to correct this error?

Talk to someone higher up and make them change it.

otherwise, just keep records of what happened so if the IRS ever makes
in inquiry you can show them the paperwork and all will be good. (I
had a similar problem and the IRS sent a letter; I replied with a well
written letter and attached a few documents... and all was good).

You also want to clean up the custodian's record for another reason;
when you want to put in your 2005 contribution, your custodiuam might
not let you do it claiming u already put in your full amount.

good luck.