You need to make sure your inventory is accurate, sales tax is calculate correctly and items are priced correctly. No matter which system you choose it is important that it meets your needs. When choosing a system you will need to consider the following things
Does the system have good reviews?
Just like when buying a product in Amazon; you want to make sure other people have used the system with success. A quick google search such as "PHP Point Of Sale POS Reviews" will be a good start. You will want to make sure the reviews you are reading are from a reputable source for software and NOT on the only on the companies website.
Is the product supported well?
You will want to make sure if you get stuck you have help. Phone and email support should be included for free or a reasonable price.
Does it have all the features I need?
Your business is unique and you want to make sure you have all the features you need. Do you have store accounts or process layaways? Do you need integrated credit card processing? Do you want to have an online store? You should have a list of all your features that you want and make sure the POS can meet these needs for you.
Does the system run in cloud or is it standalone?
Many systems these days run in the cloud. The cloud is just a fancy way of saying on a companies servers. This means the software is NOT installed on your computer which allows access from anywhere with an internet connection.
This is very useful for companies as you can check into the system from anywhere and makes it super easy for mobile sales. You will need a reliable internet connection for this but this is usually a great option.
Some software will also offer standalone systems that you would install on each computer at your store. These can also work well. Some downsides are that you cannot access easily from outside store AND you must do your own backups in case the computer crashes or is stolen.
Does it meet my budget and can grow with my business?
And last but not least. Does the software fit in my budget and will it grow with me as my business grows? POS software has a wide variety of price from Free and thousands of dollars. Many point of sale systems charge per register. This can really add up as you expand. You should look for a fair pricing model that works for your business. As you expand you don't want the costs to sky rocket; but you want to make sure the system can work when you add another register or another physical location.
I hope this article helps you find a point of sale system. Our system can meet many business needs and has great support! You can do a trial for 14 days for free!