Indirect Tax Determination Engine
A determination layer that sits in your order or billing flow: jurisdiction resolution, product taxability, exemption certificate validation, and a stored decision record so a three-year-old transaction can be explained.
Scope of the build
Fixed scope, fixed timeline, 100% U.S.-based senior engineers on Eastern-time hours.
- Address and jurisdiction resolution
- Product taxability matrix management
- Exemption certificate capture and validation
- Real-time determination API with caching
- Return-ready transaction ledger
- Audit reproduction of any past decision
What you get
Right rate, every line
Determination happens at transaction time.
Certificates hold
Expired exemptions blocked, not discovered in audit.
Reproducible
Any historical decision replayed with its inputs.
Where this fits
- → Multi-state SaaS
- → Marketplaces
- → Manufacturers with resale sales
- → ERP replacements
From signature to production
The same delivery rhythm on every engagement. You always know what shipped last week and what ships next.
- Week 0
Scope lock
Two working sessions with your team. We write the spec, the acceptance criteria, and the integration list, then fix the price against it.
- Weeks 1-2
Spine first
Data model, auth, environments, CI, and the riskiest integration go in before any screen is polished. You see it running in staging.
- Mid-build
Weekly demo
Working software every Friday, on your staging environment. Scope changes get priced in the same call, never discovered at the end.
- Go-live
Handover that holds
Runbooks, monitoring, test suite, and a recorded walkthrough for your engineers. You own the repo and the accounts from day one.
Before you book a call
Straight answers on price, timeline, ownership, and who writes the code. If your question is not here, ask it on the call — we answer it the same way.
Scope indirect tax determination engine →What does indirect tax determination engine cost?
From $58,000. The price is fixed against a written scope after a two-session discovery, so the number you approve is the number you pay. Typical delivery runs 8–11 weeks.
How long does it take to go live?
8–11 weeks from scope lock to production for the scope listed on this page. You see working software in your staging environment every week, starting in week two.
What does it integrate with?
Out of the box we wire Avalara, Stripe, NetSuite, Shopify and Snowflake. Anything with an API or a file drop can be added during scope lock.
Who actually builds it?
Senior U.S.-based engineers on Eastern-time hours. No offshore handoff, no rotating junior bench. The people on your kickoff call are the people writing the code.
Do we own the code?
Yes. Your repo, your cloud accounts, your data — from the first commit. We hand over runbooks, tests, monitoring, and a recorded walkthrough so your team can take it forward without us.
Can this start smaller than the full scope?
Usually. We can carve a first slice that proves the hardest part of indirect tax determination engine in a few weeks, then sequence the rest once it is running in production.
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Buying for tax & compliance? These usually ship together.
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