How a 7-Partner DA50 Group Automated Their Entire Admin
Seven partners share a Diamond DA50 in the Netherlands. It's a great airplane and a great group, and like most flying groups it came with a steady drumbeat of admin. Every month, the same loop: calculate everyone's hours, create the invoices, send them out, chase the late ones, then manually re-enter everything into Yuki, match payments, handle the VAT, and start again. For one airplane and seven people, that ran into hours each month. Not flight hours. Spreadsheet hours.
What they actually changed
They connected two things. Their Stripe account for payments. Their Yuki account for accounting. That was the whole intervention.
The flow now runs end-to-end without anyone having to drive it. A member flies and logs their hours in Kai. Landing fees get added automatically for the airports where the group has an account, and when the ATC fees come in later, they're easy to match back to the specific flight. Kai calculates the total cost from the group's rates and generates an invoice. The member pays online via Stripe. The invoice syncs into Yuki automatically. VAT is handled along the way. From the flight to fully reconciled books, nobody has to touch anything.
The VAT bit that quietly matters
Because the invoices flow into Yuki the moment they're created, the group can file their quarterly BTW return to the Belastingdienst directly from Yuki — no re-entry, no recreating invoices in a different format, no manual VAT calculations. The data is already structured and already there. For anyone who's filed Dutch quarterly VAT by hand, that's the part that goes from "Sunday afternoon" to "ten minutes."
Setting it up
The Yuki integration takes about two minutes. Settings → Accounting Integration → Yuki, paste in your API key and administration ID, and you're done. Kai syncs invoices into your Yuki administration as they're created and paid — no CSV exports, no manual imports, no copy-paste between systems.
What it actually feels like afterwards
Monthly admin collapsed from hours to almost nothing. Invoices go out on their own. Payments come in via Stripe. Everything lands in Yuki without anyone lifting a finger. VAT is correct. The books stay current. The treasurer still reviews — that part should never go away — but reviewing is a very different job from doing all of it by hand.
If you're not using Yuki
Kai integrates with the other Dutch and European accounting platforms most groups end up on — Moneybird, Exact Online, and e-Boekhouden — with the same shape. Connect the account, invoices sync automatically. The specific features vary by platform, but the point is the same: stop doing the admin that software can handle for you.
And while this story is about a flying group, the same setup applies to any shared asset. Boats, cars, vacation properties — if your group creates invoices and needs them in an accounting system, this is for you.
Settings → Accounting Integration.
