About Under Budget
Under Budget is a personal budgeting app for tracking spending against a budget, syncing transactions from your bank, and handling the small recurring math — like bills that need recategorizing every month, or costs you split with someone else.
Bank sync via SimpleFIN
Link your accounts through SimpleFIN Bridge and pull in new transactions automatically.
Budgets & monthly overviews
Set category allocations and track spending vs. budget for the month or the year.
Recurring bills and rules
Give every bill a rule, so its charges are categorized and bills still to come show up in your budget.
Split cost rules
Calculate your share of costs you split with someone else, like groceries or utilities.
Reserved categories
Every budget comes with three categories that are created automatically and can't be renamed or given an allocation. They're tracked separately from your spending categories, so they never count against your budget — but putting transactions in the right one keeps your spending, income and savings numbers accurate.
Income
Income is for money coming in — paychecks, freelance payments, interest, tax refunds, or reimbursements you don't want to net against a spending category. Anything in Income is always recorded as a positive amount, no matter how your bank reported it, and it never counts against your budget. Instead it feeds the income figures on your Budgets page and the Spending vs Income chart on the dashboard, so you can see how much came in next to how much went out. Add subcategories (like Salary or Side Work) if you want to see where it came from.
Savings
Savings is for money you deliberately set aside — transfers into a savings account, contributions to an investment or retirement account, or putting money toward a goal. It's recorded as money leaving the account it came from, but it isn't counted as spending, so saving more never makes it look like you overspent. The dashboard shows it as its own savings total for the month, which makes it easy to check how much you actually put away. Use subcategories (like Emergency Fund or Vacation) to track separate goals.
Internal
Internal is for money moving between your own accounts that isn't really spending or saving — paying off a credit card, moving money from checking to a joint account, or covering a transfer between banks. These are excluded from spending totals, which matters most for credit cards: the individual purchases on the card are already counted in their own categories, so counting the payment too would count that spending twice. If a transaction shows up on both sides of a transfer, put both halves in Internal.