I need to send a check to the IRS. My check has a different address than the one I provided in forms 1040X and 1040. Is that okay or should the addresses match?
It doesn't seem to me like they should care so long as it clears, but they instruct you to provide the correct info on the front of the check.
Here's Everything You Need to Know About Making Federal Tax Payments from the horses mouth:
Always provide on the front of your check or money order your correct name, address, Social Security number listed first on the tax form, daytime telephone number, tax year and form number
Note it doesn't say the address must be the same as anything you sent previously, just that it is correct.