Double-entry bookkeeping is more robust. It follows the principle that every transaction affects at least two accounts, and they are recorded as debits and credits. For example, if you make a sale for $10, your cash account (assets) will be debited (increased) for $10 and your sales account (assets) will be credited (decreased) by the same amount. In the double-entry system, the total credits must always equal the total debits. When this happens, your books are “balanced.”
Using the double-entry method for bookkeeping makes more sense if your business is large, public, or buys and sells on credit. Enterprises often choose the double-entry system because it leaves less room for error. In a way, it ‘double-checks’ your books because each transaction is recorded as two matching but offsetting accounts.