The Lowest-Balance Budget: Find the Day Checking Gets Tight
A monthly budget can add up and still miss the hardest day. Income may cover the month's expenses on paper, but rent can leave on the 1st while the first paycheck arrives on the 5th. The same totals create a cash crunch when the dates are out of order.
The lowest-balance budget keeps the same income and expense plan, then adds dates and a running balance. The smallest projected balance anywhere between now and the next round of major bills becomes the number to watch.
Start with a reconciled checking balance. If the bank's available balance already reflects a pending withdrawal, do not subtract that withdrawal again. Add pending transactions that are not yet reflected, list dependable deposits and scheduled withdrawals by date, and include realistic chunks for groceries, transportation, care, and other essentials. An unconfirmed deposit does not belong in the base map.
Use one line per cash event rather than one line per calendar day. A blank day cannot change the checking balance. An ordinary spreadsheet works, but paper is enough when the list is short.