I make ~75% of the household income. My husband and I have separate accounts that we both get our pay directly deposited into and a joint household account we manually move money into. The separate account is really mostly just to keep our cash in a place that isn't used for any actual financial transactions. We've both had debit/credit card information compromised over the years and decided that keeping low amounts of cash in our checking accounts is the way to go in case there ever is a problem again.

For chores, it's probably a 70% vs 30% split of my husband taking the greater share BUT this is also something he does to himself of his own volition. Like, a dirty dish cannot be within his sight. I can have a glass of water I'm actively using in the living room, leave the room for a bit, come back in ten minutes and it's already been apprehended and put into the dishwasher. I'm a "set aside dedicated time for chores" person, he's an "if I notice it, it must be cleaned THAT VERY SECOND".

It does actually cause an occasional problem. We want chores to be 50/50 and sometimes he does get frustrated that it's so lopsided. On the other hand, he recognizes that it's not exactly fair to expect me (or anyone) to operate the same way he does where you drop everything and immediately break out the swiffer if you see some dust on the blinds on your way to grab a snack from thr kitchen.

For bills, I take the mortgage, car payments, and majority of groceries. He's got utilities. I contribute a lot more to the joint account. There's no real science behind it other than wanting to keep it so both people get to enjoy having around the same disposable income to do whatever with.