#3 Stop spreadsheet taxes: automate with Avalara in Business Engine
Automated tax calculation with Avalara in COS Business Engine
If you’re doing end-user billing in COS Business Engine, taxes don’t have to be scary. Our new Avalara integration automatically calculates the correct taxes and fees on subscriber invoices based on the service location and the applicable tax rules. Avalara keeps jurisdictional rates up to date and handles returns and remittances, helping you stay compliant with less manual work.
What you’ll get
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Accurate, location-based tax calculation at invoice time (quotes show estimates until the invoice is generated).
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Always-up-to-date rates & rules for communications taxes—no spreadsheets or one-off patches.
If you want, Avalara can take care of sales tax preparation, filing, remittance, and notice management.

Who it’s for
Operators using subscriber invoicing in Business Engine who are (or will become) Avalara customers.
Ready to turn on automated taxes?