These two bases of accounting produce wildly different results. If you are already doing business and it is not strictly cash, you can try it both ways. Choose a month (or a quarter, if you don't have many transactions) and for that month, record cash in and cash out -- actual payments you receive and make. Add the columns (in and out) and subtract the smaller from the larger. You've just created a cash-basis Profit and Loss Statement (P&L) for the month (or quarter). Now, run the numbers again, but this time list invoice amounts and cash sales (but not payments on invoices), and list the invoices that you have received from your vendors and cash purchases you made. But don't list the payments you made on invoices. Add the columns and do the math. You'll get a different outcome. Accountants usually recommend the accrual basis to get a better picture of how your business is doing. This is one of the first questions you'll have to decide when you set up your books.
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