Help centre
How OneSixth pricing works, what's included in each plan, and what happens when things change.
How OneSixth pricing works: graduated per-organisation tiers for practices, fixed monthly tiers for businesses by entity count, and a 25% charity discount that applies to either plan.
Business gets a 30-day full-product trial with no card needed. Practices get a 90-day welcome offer where the first organisation is free. Here's how each works and what happens at expiry.
Registered charities get 25% off either OneSixth plan (Practice or Business). We accept Charity Commission, OSCR and CCNI registration numbers, and HMRC CASC clubs by name. The discount is retroactive from when you provide your details.
Pro-rata charges when you add an organisation mid-cycle, automatic credit when you remove one, and how graduated tiers recompute.
Move between Practice and Business, change the billing contact email, hand over an organisation to or from a practice, or transfer between practices.
How to cancel, the 7-day export window, paid retention options for the HMRC six-year requirement, and what gets deleted when.
The dunning retry schedule, when an account moves to read-only, and how to recover after a failed payment.
How the Practice and Business plans differ, what we monitor for plan-fit issues, and how to switch if you've picked the wrong one.
Plain-English explanation of the trial, payment-issue, and cancelled / retention banners you may see at the top of OneSixth, and what to do about each one.
Email hello@onesixth.app and a human will reply within one working day.