Every price is on this page.
3
Numbers
$499
Setup, once
Onboarding, data connection, first determination run.
No training course. Anything you need to know, ask Sal.
$99+
Platform, monthly
By company count. Tiers below.
$49
Per return
Any Washington state or local return. Sundry covers Washington today. You pay when your client signs off on the Sundry Worksheet.
Your number
$1,719
Per month
$249 platform + $1,470 returns · $499 setup, once
| Active companies | Monthly |
|---|---|
| Up to 15 | $99 |
| Up to 50 | $249 |
| Up to 150 | $499 |
| Over 150 | $899 |
Counted at the month's billing close. A company is active while you are still filing for it, whatever its filing cycle. A client with three entities is three companies.
Included. Every user at your firm. Every Washington state and local return we cover. And the statutory record behind every figure, captured before you file.
You can budget for this
An unpredictable bill is worse than a high one. You cannot quote a client on a cost you do not know.
No per-state subscription.
No per-seat charge.
Calculation API
Free to 5,000 transactions a month.
One cent per transaction over 5,000.
For companies that need a rate at the point of sale. Same engine as the returns, so checkout and the return agree.
Guarantee
If our determination or a proof we verified is wrong and your client underpays as a result, we refund what you paid us for that return. See the Sundry Guarantee.
Override a determination and that one is your call.
Questions
- Contract?
- Monthly. No annual commitment.
- What counts as a company?
- An entity that files under its own registration, counted at the month's billing close. A client with three separately registered LLCs is three companies. A company filing several returns is one. A company on an annual or quarterly cycle is active every month. A company is inactive only when you stop filing for it.
- I only file quarterly.
- Platform is monthly, returns are per return. You pay returns in the quarters you file.
- What counts as an API transaction?
- One finalized document that gets a tax result — an order, invoice or credit memo — however many lines it has.
- Above 150 companies?
- $899. Tell us if you're much larger and we'll publish a tier.
- Do I pay for users?
- No.
- AI receptionist?
- Coming soon. Billed per answered call, with no setup fee and a 14-day trial. Prices will be published here before launch. About the receptionist.