Setting up the Zamp Tax Vendor
This is a required step as this vendor will be used to assign all Sales Tax liabilities generated from transactions using the Zamp Tax Code (from a later step).1
In the Global Search bar, Navigate to:
Lists > Relationships > Vendors > New
2
Configure the Vendor
- Company Name: Zamp Tax
- Category: Tax Agency
- The remainder of the values can be in accordance to your company
Setting up the Zamp Tax Type
1
In the Global Search bar, Navigate to
Setup > Tax > Tax Types
2
Configure the Tax Type
- Name: External Tax (Zamp)
- DO NOT DEVIATE FROM THIS FORMAT
- Select United States as the Country
- Liability / Sales Tax Account can be blank
- Under the Accounts subtab, this will list any nexus that Zamp is configured to calculate tax on.
- For each Nexus, you can map the account to your GL that will house all of your liability. Zamp makes it easy to see a breakdown state-by-state.
Subsidiary Nexus
Configuring Subsidiary Nexus
1
Find your Subsidiary
Setup > Company > Subsidiaries > (Pick your subsidiary)
2
Configure the Subsidiary Tax Registrations
- Tax Agency: The NetSuite agency record for the nexus (not Zamp)
- Tax Reg. Number: As assigned by the taxing agency
- Tax Engine: SuiteTax Engine
- Leave this as such
- Tax Exempt: LEAVE UNCHECKED
- DO NOT check this box unless you are absolutely certain that subsidiary should never collect sales tax.
- Effective From: The date Zamp should begin calculating tax
- Valid Until: Optional
Preventing Additional SuiteTax Override
1
Find your Subsidiary
Setup > Company > Subsidiaries > (Pick your subsidiary)
2
Configure the Subsidiary Tax Registrations
- Click on the Tax Registrations subtab
- Click Edit
- For any configured nexus that does NOT have the Zamp Tax for the Tax Agency:
- Mark the Valid Until date to either the current day, the next day, or the date you plan on enabling Zamp calculations and posting
- If you run into an error setting a Valid Until date, due to transactions existing in the future, reach out to your Zamp representative for instructions on how to identify those future transactions.
- If you have future transactions causing conflicts with saving, you will see the below error:

- If you have future transactions causing conflicts with saving, you will see the below error:
- Repeat for the remainder of nexuses set up for any subsidiary Zamp will handle calculations for.
- Then, navigate to Zamp > Tasks > API Connection > View (Zamp | Sales Tax Settings) and hit Edit
- For the nexuses you entered Valid Until dates, pick the earliest date as the Zamp Start Date. This will ensure that nexus conflict errors will not appear for any transactions before the nexus cutoff dates.