How to close the cash register in your business

What a cash close is

A cash close is the process of comparing the money in the drawer at the end of the day against the total registered sales. If the two numbers match, the drawer balances. If not, there's a discrepancy — either a shortage (less money than there should be) or an overage (more money than there should be).

The formula is simple: what you opened with + sales for the day - expenses paid from the drawer = what you should have at closing. If the physical cash doesn't match that number, something wasn't recorded.

Why it's important to do it every day

• Catches incorrect change given before errors accumulate.
• Lets you know if an employee is taking money without recording it.
• Gives you the real total of the day's sales — not an estimate.
• If there's a discrepancy, it's much easier to trace on the same day than at the end of the week.
• Over time, closing data shows which days and hours sell the most.

How to do it step by step

• 1. Before opening: set a fixed opening amount (the float). Always record it.
• 2. During the day: register each sale the moment it happens. Don't batch sales to record later.
• 3. At closing: count the physical money — bills and coins separately.
• 4. Enter the counted total into the system.
• 5. The system calculates the difference against registered sales.
• 6. If there's a difference, review the day's movements: change given, cash expenses, unregistered sales.

The most common causes of discrepancies

• Incorrect change given during peak hours — the most frequent error.
• Sale registered at the wrong price.
• Expense paid from the drawer that wasn't recorded (a purchase, supplier payment).
• Sale that was charged but not entered into the system.
• Money taken from the drawer without logging it.
• The opening amount wasn't separated from the total when counting.

How a POS simplifies the cash close

With a notebook or spreadsheet, closing requires manually adding up all sales and comparing them to the counted cash. With a POS, the system accumulates sales throughout the day and at closing you only need to enter how much you counted. The system calculates the difference in seconds.

If there's a discrepancy, the movement history for the day lets you review sale by sale to find where it happened. That turns a 30–60 minute close into a 5–10 minute process with a clear result.

Mistakes to avoid

• Not opening with a fixed amount: without knowing how much was there at the start, the close has no reference point.
• Leaving sales unregistered to log later: memory fails and the numbers end up incomplete.
• Ignoring small discrepancies: a $1 difference repeated every day is $30 a month disappearing without explanation.
• Allowing multiple people to handle the drawer with no record of who did what: the error becomes impossible to trace.