The anonymous tipster who led cops to the parents of accused Michigan high-school shooter Ethan Crumbley is set to reap a reward of up to $20,000, a new report says.

“My understanding, and I was talking to the sheriff and a couple of other people about that investigation, and it looks like that tip — that caller will be eligible for the reward,” Detroit Police Chief James White told the Detroit Free Press on Sunday.

“So, I’m happy about that,” White said.

The US Marshals Service offered a $10,000 reward for information leading to the whereabouts of either parent while James and Jennifer Crumbley were hiding out as prosecutors sought them in connection with Tuesday’s deadly shooting at Oxford High School.

The tipster could end up with as much as $20,000 for helping to net both parents, the Free Press said.

The couple’s 15-year-old son is being held without bail on charges of first-degree murder, terrorism and assault with intent to murder for allegedly killing four students and wounding seven others.

The teen’s parents purchased the 9 mm semiautomatic handgun used in the attack and allegedly allowed him access to it while being aware of deeply troubling recent behavior by the boy.

Authorities had announced that they were charging the parents with involuntary manslaughter in the case, and the couple vanished. Police launched a manhunt for them and nabbed them Saturday.

The Crumbleys, who were found in the basement of an art studio around 10:30 p.m. Saturday, are now being held on $500,000 bail each.

On Sunday, police said they had identified 65-year-old Detroit artist Andrzej Sikora as a person of interest suspected in helping the Crumbleys hide from the police.

Sikora has not been charged, and it is unclear how he knows the Crumbleys.