opentax
Pricing
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Pricing

The Firm plan is for firms that use OpenTax in their practice. You get answers from the engineers who build it, and the features you need, built on a date you can plan around.

community
$0
  • Full source code
  • Community support on GitHub
  • No commercial products or resale
View on GitHub
firm planrecommended for firms
$19$9per seat per month

$12 $5 per seat from 6 seats

Launch price for firms that join by January 31, 2027, kept for as long as you stay subscribed.

  • Support from the engineers who build OpenTax

    Email us about a calculation, a rule, your integration or running OpenTax on your own servers. You get a reply within 24 hours.

  • Filing-season priority

    From January through April, replies within 4 business hours instead of 24.

  • Features built for your firm

    Tell us what your practice needs: a form, a state, an API change. You get a delivery date in writing within two business days, and we ship it within two weeks.

  • Early access to new features

    Try new forms, states and tools before they are released to everyone, and shape how they work.

  • Team management

    Add and remove staff from your account. Everyone on your plan gets the same support.

$9per month

1 × $9 per seat

Paid through Stripe, charged today and then every month. Add seats, switch to yearly or cancel from your account. Prices in USD, before any sales tax.

Your subscription also pays for the work on OpenTax: accurate tax and finance software that anyone can read and check.

embedding license
Custom

For software that people outside your company use: tax products, client portals, APIs and AI agent tools. Hosted API with an SLA available.

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Questions

What counts as a seat?+

A person at your firm, employee or contractor, who uses something built on OpenTax. Servers, staging sites and the number of clients you serve don't count.

Can we use it for client work?+

Yes. Projections, plans, reports and advice your staff produce with OpenTax are your work product. Giving clients their own login to run calculations needs an embedding license.

Does any client data leave our machines?+

No. The library makes no network calls. You can run it with the network off.

Can we pay yearly or by invoice?+

Yearly billing costs 11 months of the monthly price. For a purchase order or a signed order form, email founders@invaro.ai.

Full terms: Firm plan.