Seamlss vs StackGo
Seamlss is built for firms that want engagement letters, onboarding admin and AML run from one separate app. StackGo is built for the whole onboarding and AML job, from intake to ongoing monitoring, set up the way your firm works and run from the practice software you already use.
What each product does, the facts side by side, and which firms each suits.
Facts checked against Seamlss's own published sources on 23 Aug 2026.
What Seamlss is
An Australian client onboarding and engagement platform for accounting firms. It began with engagement letters and onboarding requests, and has added AML features since February 2026, including PEP and sanctions screening and, from August 2026, a risk assessment. Onboarding runs in Seamlss, and each client is then pushed to Xero Practice Manager.
Where StackGo fits
The whole job, from intake to monitoring. StackGo runs five workflows: Intake, Verify, Screen, Assess and Monitor. Use one or all of them, for individuals and for companies, trusts and SMSFs, with the beneficial owners found and checked.
Set up the way your firm works. Ready-made intake forms show each client only the questions that apply to them. On Growth plans and above you add your own wording and fields, and edit the risk questionnaire to your AML/CTF program, scored against your own thresholds. Medium and High risk clients get enhanced due diligence, and each client's review cycle follows their risk.
Starts and ends in your practice software. Tick KYC Command on a client in Xero Practice Manager or FYI to start a check, or send clients your intake link. Each result is written back to the client record, and on Growth plans and above the collected details and a PDF of the check go back too. StackGo is listed on the Xero App Store, Karbon, FYI and MYOB, with an API and webhooks for other systems.
Do it yourself, or have it done for you. Your team can set everything up. If you need a form or a step that isn't there, StackGo can build it. Plans are published and run month to month.
Where Seamlss fits
Engagement admin with AML. Engagement letters, e-signature, ITR forms, ATO agent linking and ethical clearances sit in the same subscription as its AML checks.
Published pricing. $600 a year plus $7.70 per screening, including GST, on its website.
On the Xero App Store. Rated 4.9 and a Xero 2024 Awards finalist. It can deploy jobs to Xero Practice Manager from its onboarding requests.
How the difference plays out
Where the work happens. In Seamlss, onboarding runs in Seamlss: a client is added there or imported from XPM, and is onboarded there. Each one then goes back to Xero Practice Manager from the client's page in Seamlss: "Push to XPM", then "Sync new client to XPM", one entity at a time. In StackGo the work starts from the client already in your practice system, or from your intake link, and the result comes back to that record without a separate push.
Clients that need different handling. A tax-return individual, a family trust and a higher-risk company need different questions and different checks. StackGo lets you set the intake form, the risk questionnaire, the scoring and the review cycle to your own program, so each kind of client follows the path that fits it.
Practice systems beyond XPM. Seamlss connects to Xero Practice Manager and sends documents one way to FYI. StackGo also works with Karbon and MYOB, and has an API for other systems.
The facts, with sources
| Integration depth | Tier 3, writeback · record kept in your practice system What the tiers mean |
| Records in your system | — |
| Pricing | Published |
| Subscription | 600/year, GST inclusive |
| AML screening | 7.70 per screening, GST inclusive |
| Jurisdictions | AU |
Review platforms
| Platform | Rating | Reviews | Type |
|---|---|---|---|
| Xero App Store | 4.9 | 0 | — |
Invited reviews are requested by the vendor, usually at onboarding. Organic reviews are written unprompted.
Switching from Seamlss
Keep what StackGo does not do. Seamlss also handles ATO agent linking and ethical clearances, which StackGo does not. Some firms keep it for those and move only identity and AML.
What moves. StackGo starts each check from the client record in Xero Practice Manager and writes the result back, so there is nothing to key in again. Keep the records of past Seamlss checks as your evidence.
Book a demo and bring your current setup. We will map your client steps onto StackGo so you can judge the move before you make it. Book a demo
Which suits your firm
Seamlss suits smaller firms on Xero Practice Manager whose onboarding follows one standard path, and who want engagement letters, agent linking, ethical clearances and AML checks from one app at a published price.
StackGo suits firms that want the whole onboarding and AML job, from intake to ongoing monitoring, set up the way your firm works and run from the practice software you already use. You can start free without a sales call.
Ready to make onboarding minutes, not hours?
Start free and run your first check today, or book a demo and we will walk you through it.