Rillet

Rooftop-accurate sales tax on your Rillet contracts and recurring invoices, with a Zamp team that owns compliance end to end.

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Integration overview.

Tax on contracts and recurring invoices.

Invoices and credit memos posted in real time.

Product taxability mapped by experts.

Why Zamp for Rillet.

Built for an AI-native ERP.

Zamp runs inside Rillet’s close, so tax is right on the invoice instead of fixed at month end.

Software taxability done right.

Zamp maintains its own taxability library and gives you the state guidance and citations behind each decision.

Prior periods, recalculated.

Turn on recalculation to bring historical invoices to the right rate for nexus and filing.

A team that owns the outcome.

U.S.-based sales tax specialists handle registrations, filings, remittance and state notices, with your approval at each step.

Everything you need for global sales tax — in one place.

4 simple steps to integrate Zamp to Rillet.

  • G2 Easiest Setup, Summer 2026
  • G2 Easiest to Do Business With, Summer 2026
  • G2 Easiest Admin, Winter 2026
  • G2 Best Usability, Summer 2026

Enable the Zamp Connector.

Your Zamp contact turns on connector access for your account.

Connect your API keys.

Save a Rillet API key with write access and your Zamp API token, then turn on calculation and sync.

Add the Rillet webhook.

Invoices and credit memos post to Zamp when they’re created, updated or deleted.

Map products and exemptions.

Assign tax codes one by one or by spreadsheet import and map exempt customers in the Connector.

FAQs.

Still have questions? Call us at 1-866-438-9267 or email us at support@zamp.com.

Is the Zamp integration live in Rillet?

Yes. Zamp is live inside Rillet and listed on Rillet’s integrations page.

Which Rillet records does Zamp handle?

Contracts and recurring invoices are calculated, and invoices and credit memos post to Zamp in real time for filing.

Where are customer exemptions stored?

Exemption codes are mapped in the Zamp Connector rather than in Rillet, so exempt customers are applied on every invoice.

What if a product isn’t mapped?

Unmapped products default to tangible personal property until you assign a tax code. Zamp’s team reviews mappings during onboarding.

Can I test before going live?

Yes. A free sandbox lets you validate configuration and workflows before production.

How is Zamp priced?

Pricing is tied to committed transactions sent to Zamp, not to API calls, which are never metered. You know what you’ll pay as volume grows.

Platforms we support.

We connect where you sell. Explore the platforms we integrate with to see how Zamp simplifies your sales tax compliance.

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Switch to the new standard in sales tax compliance.

Talk to a sales tax specialist about your states, your systems and what we take over.

#1 rated support on G2

Three colleagues reviewing their accounts together at a sunlit table.