New data has revealed a number of Kiwi couples are ending their marriages later in life.

Stats NZ shows the amount of divorces that involved people aged 50+ last year was 39.9 percent - up 7.1 percent in 10 years.

Bastion Chambers lawyer Jeremy Sutton says children growing up and leaving home can put stressors on a marriage.

"Once the last child has left home, that's often the catalyst to see if they've got the same interests or not. One party is often wanting to continue working in some way, while the other party is happy to do other things - maybe travel, maybe spend time with family."

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