The city of Spokane will waive penalities for local companies delinquent on their city business registrations if they act by the end of August.

About 3,000 businesses operating within city limits haven’t registered with Spokane’s Tax and Licensing Department, which is required annually, officials said. Businesses that are not properly registered can be fined up to $536 per day.

The city will get the word out to businesses that haven’t complied, said Margaret Redd, taxes and licenses specialist for the city. Warning letters will be issued in the final month of the amnesty period. Previously unlicensed businesses can register without incurring the civil infraction penalty.

For more information on registration and costs, visit http://bls.dor.wa.gov/cities/spokane.aspx.