The Penny Test. There are several popular ways to check your tire tread depth. One easy way is the penny test. Simply insert a penny into your tire's tread groove with Lincoln's head upside down and facing you. If you can see all of Lincoln's head, your tread depth is less than 2/32 inch and it's time to replace your tires.
1 Hourly rates for an outside bookkeeping service run $20-$50 an hour, depending on complexity and location. 2  Usually you can hire a trained, experienced bookkeeper on a contract basis for $30-$40 an hour, but there can be a minimum monthly charge of $100-$150 for small businesses that don't require a lot of work hours. A typical salary for an in-house bookkeeper in the United States runs $30,400-$39,898 according to Salary.com. 2  The average annual pay for a bookkeeping account executive is $68,294, or $57,600 for a payroll manager, according to BookkeeperList.com.
Below is a general breakdown of billing rates for various staff members at professional accounting and bookkeeping firms. Nevertheless, keep in mind that large national firms tend to have higher rates than smaller regional or local firms. CPAs are at the top of the pay scale, commanding $150 to $250 per hour in most cases.