I am calling this the "Mistake post".

Wait. Did I post this by mistake?....

No, I promise. This is a bookkeeping post about the mistakes that quietly cost business owners money. There are many, so I will take one mistake at a time. This post is only about Mistake 1.

Mistake 1: Mixing personal and business spending One coffee here, one grocery bill there, and by the end of the month nobody knows whose money was spent. Yes, that coffee was a "business meeting". With yourself.

It looks small. It is not. Here is what it quietly does to your business:

Your profit becomes wrong. Personal costs sit inside business expenses, so the numbers do not show how the business is really performing.

Your bank reconciliation becomes slow. Every personal payment needs an explanation before your books can match the bank statement.

Your tax work becomes harder. When costs are mixed, it is difficult to prove which expenses truly belong to the business.

You lose clarity. You cannot tell how much the business earned and how much you took out for yourself.

Check your statement once a week. Small habit. Clean books. Much less stress at year end.

Mistake 2 is coming in the next post, so follow along so you do not miss it.