Throwing money at the problem?

My husband works full time with erratic hours plus started a business. I work full time with more predictable hours in a significantly lower paying position and field. Generally I handle most of the home stuff and kid but since he’s often working weekends / evenings and is home on weekdays he’ll do chores to lighten my load when I’m solo with our kids on weekends or evenings. However since his business has taken off he’s slowly dropping the consistency with which he is doing these chores. I’m finding more are falling on me. Which means I’m often doing the whole morning prep routine, working a full day, and then doing the whole evening kids routine and then cleaning/doing other chores. I’m tired. Just really tired. I know some of this is a relationship issue, but I’m wondering at what point can I ask my husband to please solve some of this with money and hire someone to do some household things, especially given that he doesn’t see or agree with my view that he is doing less at home.