Split expenses as a couple, fairly — even when it isn’t 50/50
Many couples share costs in proportion to what each earns, or split some things evenly and others not. Sumzy handles each expense the way you agreed and keeps one running balance between you.
How couples use Sumzy
- Create a couple group and add your partner by email.
- Add shared costs with who paid. Split 50/50, or by percentage — say 60/40 — or by exact amounts.
- Settle up when you want. Sumzy shows one balance between the two of you; record a payment and it goes to zero.
Fair splits, not just equal ones
Percentages and shares
Split by percentage, by shares, by exact amounts, or equally with a fixed adjustment for one person. Sumzy rounds so the split always adds up exactly to the total.
Either of you can pay
Whoever paid adds the expense, and one bill can have two payers. The balance shows who is ahead without anyone doing math.
Your own spending too
Sumzy also has a personal side for your own expenses, kept apart from what you share.
Example: splitting by income
Gabi earns R$6,000 a month and Henrique R$4,000, so they split shared costs 60/40. Rent of R$2,500 becomes R$1,500 for Gabi and R$1,000 for Henrique. A weekend away is different: they agree to split it 50/50, so that expense uses an equal split instead.
Because each expense keeps its own split, the couple never has to recalculate a percentage by hand, and the running balance shows at a glance who has paid more so far.
Ways couples split money
- 50/50 on everything. Simple, and fair when incomes are similar.
- Proportional to income. Each person pays the same share of what they earn; set it as a percentage split.
- Some shared, some not. Split the home and groceries; keep hobbies and personal spending separate.
- Take turns paying. Whoever pays logs it, and the balance evens out over time.
Whichever you choose, Sumzy keeps every currency separate too, which helps couples who live between two countries or travel often.
Frequently asked questions
How do couples split expenses fairly?
A common approach is to split shared costs in proportion to income, for example 60/40. In Sumzy you can split each expense by percentage, by shares, by exact amounts or equally.
Can we use different splits for different expenses?
Yes. Every expense has its own split, so rent can be 60/40 while a dinner is 50/50.
Is Sumzy free for couples?
Yes. The free plan includes every split type, with up to 7 new expenses a day. Sumzy Pro removes the limit and adds recurring expenses.
Try Sumzy free
Download Sumzy, create a group and add your first expense.