Money coming into state coffers in July was well below government forecasts, continuing a trend that began in April, setting off a fresh debate about the health of the state's economy and budget.
The shortfalls come amid volatility in Washington and the global economy that has some officials concerned about the state's budget situation, despite its $2 billion rainy day fund.
"It underscores the danger of the budget we passed this year," said Sen. Richard Cohen, DFL-St. Paul, citing substantial tax cuts and spending increases.
If the shortfalls continue and equivalent savings are not found in spending, lawmakers and DFL Gov. Mark Dayton might have to reconsider the commitments they made when they agreed on a two-year, $45.5 billion budget in May.
By large bipartisan majorities, lawmakers passed tax cuts worth $650 million during the next two years for Social Security recipients, farmers, first-time home buyers, families with child care costs, small businesses with big property tax bills and college loan debtors, among other groups.
Dayton said the new numbers — revenue was 6.4 percent lower than expected in July — concerned him because of the "excessive" tax cuts passed by the GOP-controlled Legislature that "left us without much of a margin for error."
Susan Closmore, a spokeswoman for House Republicans, shot back that the budget balancing problem was on the spending and not the tax side.
For every dollar in tax relief provided, spending has increased by $10, she said.