Assembly Democrats are drafting a budget plan to be introduced next week with an actual millionaire’s tax, meaning that people at seven figures of income and above would be assessed an additional surcharge above the rest of taxpayers, an elected official said Thursday.

The one-house measure would add at least a point to the 6.85 rate paid by other taxpayers  but enough to  raise about $700 million this year to help fund public education spending goals of Assembly Speaker Sheldon Silver’s conference. Details have not been made public, but Silver’s members believe the idea will have some appeal within the GOP-controlled Senate.

The current, so-called millionaire’s tax that is set to expire at month’s end actually has been triggered once a single taxpayer reached $200,000 in taxable income. Gov. Andrew Cuomo is eager to bid it goodbye and does not want to replace it with a substitute income tax surcharge on the wealthy.