Kalau dr pemahaman saya, you mean duit belanja kan? Actually, it's depends. Paling mudah, ask the wife, kalau rasa the figure higher than your expectation, discuss berapa the husband mampu beri. Like myself, we agree yg my husband willing to pay me 1k for each kids, sebab there are agreements between us lead to the amount. So, 5kids, 5k. Win - win situation. Nafkah yg wajib mmg dia dah sediakan. And alhamdulillah, income dia mampu yg membolehkan dia beri belanja seperti itu. So, yes. Discuss.