How much personal spending money each partner gets, and how to set it
by Lee Schmidt
Published September 20, 2026
Personal spending money is a fixed amount each partner gets every month to spend with no questions asked, and the right amount is what is left after the shared bills, the savings transfer, and the shared spending, divided by two, and the same for both of you. It is moved to each person's own account on the same day each month and never tracked, by either partner. Equal amounts, rather than amounts proportional to income, are what keep the money personal: the fairness of contribution is handled by how the shared bills are split, and the personal money is what each person has once that fairness has been settled.
Why personal money exists
Most money arguments between partners are not about the rent. They are about a purchase one person made that the other would not have, at a size too small to matter and too visible to ignore. Personal money ends the argument by moving that purchase into a space that is not shared. The coffee, the game, the second pair of running shoes come out of a figure that was agreed, and the agreement is that nobody asks.
It also protects the shared budget. Without a personal figure, every want is negotiated against the household, and the negotiation is either constant or avoided by not mentioning the purchase. With one, the household budget covers the household, and each person's wants have a home that is theirs.
Equal amounts, not proportional ones
When incomes differ, the shared bills are usually split in proportion to income, so that each partner contributes a similar share of what they earn. Personal money is different: it is what each person has to spend on themselves, and if it is proportional too, the lower earner has a smaller life inside the same home. Equal amounts say that the household's surplus belongs to the household, and each person gets half of the part of it that is personal.
The exception is a couple that has chosen fully separate finances with a fixed contribution each to shared costs; there, whatever each person keeps after the contribution is their personal money by construction, and it is already unequal. See Yours, mine and ours, and the three ways couples combine money for how the arrangement decides this.
Size it
- Start from combined take-home pay.
- Subtract the shared bills, the fixed and semi-fixed costs of the household.
- Subtract the savings transfer, the amount agreed to leave on payday.
- Subtract the shared variable spending, groceries, household, fuel, dining together, from three months of real transactions.
- Divide what is left by two. That is each partner's personal money. If it is too small to feel like anything, the shared spending or the savings transfer is where the conversation goes, not the split.
A worked example
Each partner receives $350 on the 1st, in their own account, and the household's picture stops at that transfer. If one partner spends it on lunches and the other saves it for six months toward a bicycle, both have used it correctly. The figure is revisited when income or the shared costs change, at a monthly check-in, not when one person had an expensive week.
What is personal and what is shared
Decide the boundary once, in writing, because the same purchase is personal in one household and shared in another.
The third column is where the arguments live, and the answer is whichever the two of you say, as long as it is said in advance. A household that decides clothes are shared budgets a clothing line; one that decides they are personal sizes the personal figure to allow for it.
Run it
- Move it on the same day each month, by automatic transfer, to an account only that person uses.
- Never track it. Not in the shared budget, not in a category, not in a question. The account balance is the only record, and it is that person's.
- Let leftovers stay personal. Money not spent this month is not returned to the household; it is the start of that person's next purchase.
- Revisit the figure at the monthly check-in when income, the bills, or the shared spending changes, and only then.
Common mistakes
- Setting it proportional to income. The lower earner lives smaller in the same house; keep it equal and split the bills proportionally instead.
- Setting it from what is left after everything else, including wants. Then it is zero, and the wants go back to being negotiated.
- Tracking it "just to see." The point is that nobody sees.
- Leaving the boundary undecided. The clothes purchase becomes the argument the figure was meant to end.
- Paying personal purchases from the joint account and settling later. The settling never happens, and the shared categories absorb personal spending.
- Raising one person's figure after a raise. A raise is the household's; it changes the bills' split or the savings line, and the personal figure rises for both or neither.
Common questions
How much personal spending money should each partner have? What is left after the shared bills, the savings transfer, and the shared spending, divided by two. There is no right figure in dollars; the worked example lands at $350 each on a $6,400 household, and a household with higher rent or a larger savings goal lands lower. If the result is too small, the shared lines are the conversation.
Should personal money be equal if one of us earns much more? Yes, in most arrangements. The income difference is handled by splitting the shared bills in proportion to income, so each person contributes a fair share; the personal money is what each person has after that, and equal amounts mean equal freedom inside the same household. See How to split shared bills fairly when incomes differ for the split.
What counts as personal spending? Whatever the two of you decide in advance, written down. Lunches, hobbies, and single-user subscriptions are personal almost everywhere; clothes, gifts, and personal care are decided household by household.
Can personal money be saved up? Yes, and it should be able to be. A partner who saves six months of it for something large has spent it correctly, and the household has no claim on it.
What if one partner keeps running out? The figure is revisited at the check-in, for both partners, and the boundary is checked: a partner running out is often paying for something shared, such as the kids' lunches, from personal money. If the boundary is right and the figure is right, running out is that partner's to solve, which is what makes the money personal.
How Zypper handles this
Zypper lets the personal accounts sit outside the shared budget without leaving the picture. A couple plan gives each of you your own private login to the same household, where connected accounts, transactions, and budgets are shared; each partner's personal account can be excluded from the budget with the Include in the budget setting, so its balance still counts toward household net worth while none of its transactions reach the budget's figures, which is the "never tracked" rule built in. The monthly transfer into each personal account is recognized as a movement between your own accounts, not spending, and the shared account's groceries, fuel, and dining land in the shared categories as they sync. See Editing and removing accounts and Inviting your partner or family member for the details, or get started with Zypper to keep the personal money personal.