INDIANAPOLIS -- Property tax bills will be mailed in Marion County Friday, bringing bad news for taxpayers, some of whom will see their property tax bills take a big jump.

Some property owners called the Marion County Treasurer's Office Thursday for a sneak peek of the news, and many didn't like what they heard, 6News' Norman Cox reported.

The long-delayed bills should hit homeowners' mailboxes this weekend, just a day after Indianapolis Mayor Bart Peterson announced an unrelated public safety plan that would increase the county's income tax.

Clerks in Marion County Treasurer Michael Rodman's office doled out information to homeowners over the phone. At least one caller was told his bill had risen by more than 30 percent.

"My phone operators tell me that most people are … in pretty good humor," Rodman said. "They're not delighted. No one's happy about taxes, but we're not getting the angry calls."

Rodman said he could not yet calculate how much the average homeowner's bill increased, but can tell how much residential property assessments, used to calculate the tax, went up.

Assessments are up 20 percent countywide. Washington Township had the biggest increase, at 37 percent. Lawrence and Center Township increases are both more than 20 percent.

Perry and Decatur Township both had the lowest increases, in the single digits.

"I live in Center Township, and I think they're ridiculously high," said one homeowner 6News spoke with.

The treasurer's office was taking inquiries at 317-327-4444.

Mayor Calls On Gov. Daniels To Address Tax Issue In Special Session

Indianapolis Mayor Bart Peterson on Thursday called on Gov. Mitch Daniels to call a special session of the Legislature to deal with what he called the property tax crisis.

Peterson said he wants lawmakers to address issues they didn't in the regular session, such as the Marion County fire merger and having the state take over all child welfare costs.

Peterson said his plan would save Marion County taxpayers $88 million a year.

"That is a good portion, and with the rebate that is supposed to come later on this year or early next year, that might largely eradicate the property tax explosion that we have seen this year," Peterson said.

Thanks to a bill that the Legislature passed this year, the state will give property tax rebates to payers -- an action that is expected to effectively lower the average 24 percent increase to about 9 percent.

Taxpayers must pay their bills in full and receive the rebates later. The rebates were supposed to be mailed in November, but county treasurers said that estimate is probably too soon, Cox reported.