Attention, dawdlers, laggards, procrastinators and everyone else who has a very good reason for not yet filing a tax return: Your time's about up.

If you don't intend to burn the evening oil tonight, better ask for an extension. But take comfort. Those early filers will have to work just as many days this year as you will to pay all your taxes - a record 128.Tax Freedom Day will come May 8, the private Tax Foundation announced Monday. That is the latest date on record for the mythical point in the year at which the average worker is estimated to have earned enough to settle accounts with federal, state and local tax collectors.

That date last year was May 5. The three-day lengthening was the largest since 1976 and could get worse, the foundation predicted.

"The combined pressures of a persistent federal budget deficit, demands to expand funding for new and existing programs, budget crises in numerous states and the slowdown in income growth could easily make Tax Freedom Day even later on our calendars in future years," the foundation said.

Meantime, the Postal Service and Internal Revenue Service prepared to receive as many as 27 million returns this week - many of them being dropped into collection boxes close to tonight's midnight deadline.

In many areas, the IRS's toll-free telephone lines were open extra hours.