It may become easy to lose control when handling taxes in more than one state. This is the reason several companies are opting to hire sales tax services. Typical duties that are performed by these services include state registrations, determination of nexus, filing of tax returns and remittances. Under the professional sales tax services, companies will maintain pace with evolving regulations and minimize chances of penalty or audit. To the companies that spread their operations in the U.S., this type of systematic control over the taxes may simplify business significantly.