So he has decided to sell the ones his chickens lay to raise money for children in Gaza instead.
"I think they need it most at the moment.
"We got our chickens and we were getting so many eggs that I thought maybe I could sell them to make a profit, but then I decided I could give some of the money to charity."
The Kaikorai Primary School pupil is selling his eggs for $7 a dozen, giving 80% of proceeds to Unicef to help get medical and food supplies to Gaza, and keeping 20% "for expenses".
The chickens, Nugget and McBite, lay about two eggs a day.
So far, Isaac has sold about 70 eggs and raised $50.
He is planning on getting two more chickens and continuing the business for another 10 years.
Isaac’s mother, Alice Billington, said he came home from school one day with a business idea and orders for eggs written in permanent marker on his hands.
"I thought he just wanted to raise money to buy Nintendo Switch games ... but he was like ‘I want to give it to charity’."
Isaac said he also wanted to encourage other children to do what they could about important issues.
Dr Billington said they talked a lot about politics at home in a child-friendly way.
It was important to address tricky issues such as the war in Palestine with children to make sure there was not any misunderstanding.
"He’s a very curious kid and I think he would prefer we told him the truth rather than lied."
Isaac’s business idea showed children could understand and address things at their own level, she said.
