Business License

There are no such things as state or local sales taxes in Delaware and as such, sales tax exemption certificates and reseller certificates do not exist in Delaware.

Exemption Certificates - Division of Revenue - State of DelawareDivision of Revenue - State of Delaware

However, you do need a business license which costs roughly 75$ for the year. You need this license number to start an Amazon account. The steps of getting one are fairly straight forward:

You need to have a EIN number to start this process

1. Go to https://onestop.delaware.gov/
2. Crete an account and click on 'Register a business'

3. On the selection on what applies the best for your business, select 'My business is already incorporated in Delaware and I need a business license'

4. Fill in all the information and complete your application

5. Pay for the business license and you have officially gotten your business license