As planned, the IRS on Monday, Feb. 14, began accepting tax returns that had been delayed while the agency got its computer system up to speed with tax law changes enacted in December.

Now, however, the IRS is asking for one more favor from e-filers. Slow down!

The Council for Electronic Revenue Communication Advancement (CERCA), the association founded 15 years ago at IRS request to deal with the electronic filing of tax returns, says that although the IRS is now processing delayed returns -- primarily ones that include Schedule A itemized deductions -- there will be some continued delays in return and refund processing.

To help alleviate these continuing processing issues, the IRS would really, really appreciate it if "private sector transmitters of e-filed returns" (in plain English, that's tax preparers who've been holding onto the returns in anticipation of IRS filing acceptance) would stagger their submission of returns over the course of this week.

Uh, sorry IRS. Your request is probably too late. I've already heard from lots of tax pros who spent Monday punching "enter" on their computer keyboards, happily sending along the ready-to-go returns that had stacked up in their offices.

In a statement, CERCA implicitly acknowledged that the IRS request for e-filers to wait a bit longer is probably for naught. So the agency will take care of things on its own:

Due to the high volume of backlogged IRS returns beginning to be processed this week, the agency is limiting the number of returns it will accept daily to manage their systems capacity and to ensure successful filings of all returns.

Question to tax pros (and individuals who are this week finally e-filing), have you have any e-file attempts rejected?

Slowing refunds, too

This delayed filing rush also is expected to produce a back-up on the other end of the process.

Specifically, notes CERCA, "taxpayers may experience delays in their return processing and in the time it takes to receive their federal tax refunds."

That situation will surely have more folks checking the IRS smartphone refund app.

I'm doing my part. I'm not going to work on, much less file, my personal tax return until sometime in March ... or maybe April ... or perhaps between April 18 and Oct. 17. (The usual extension deadline of Oct. 15 falls on a Saturday this year, pushing the due day to the next Monday.)

As for all y'all who are e-filing this week, here's hoping that the backlog works itself out sooner than expected and that you'll soon have your refunds in hand.

A few more delays

OK, individual returns now are being processed, albeit slowly.

But the IRS has announced that some business tax returns containing "certain business-related forms" would still be delayed "until further notice."

More from Don't Mess with Taxes and MSN Money:

• 10 tax forms that will delay filing of your 2010 return
• Important 2010 tax-filing deadlines
• IRS commissioner chides Congress for its delay 
  in dealing with expired taxes
• Beware of three tax traps
• How to go electronic with your taxes
• Where to find free tax help