For Accountants
Stop estimating your clients'
tax bills. See them live.
Live CT and VAT forecasts for every Xero client. Every number explainable. Every forecast auditable.
No credit card required
Are you a business owner? See Rooby for businesses →
Features
Everything you need,
every step of the workflow.
Live corporation tax forecast, from Xero
Rooby reads your client's Xero P&L in real time and applies the full UK CT calculation, marginal relief, AIA, disallowables, depreciation add-back, automatically.
- Updated every time Xero syncs, no manual refresh
- Handles marginal relief and AIA timing automatically
- 12-month rolling forecast so you can see where the liability is heading
- Multi-client view, see every client's CT position at a glance
VAT forecasting that keeps up with your clients
Live VAT position pulled from Xero transactions. Spot underpayments and overpayments before the return date, not after.
- Standard rate, flat rate, and cash accounting supported
- VAT due and next payment date always visible
- Quarter-end summaries ready for review in seconds
Every number clickable. Nothing a black box.
Click any CT or VAT figure and see the full calculation behind it, inputs, adjustments, rates, rounding. Show a client exactly how their bill was arrived at.
- Full audit trail of every calculation
- Immutable snapshots, see what the position was on any date
- Defensible to HMRC: every figure traceable to source data
- Client-sharable explanations in plain English
Why accountants choose Rooby
Built for practising accountants.
Rooby isn't built by a tech company guessing what accountants need. Every feature is shaped around real client books, real CT600s, and real trades-client headaches.
- Trades-specialist logic, AIA timing, subcontractor signals
- Accountant-first, you control what clients see
- Every calculation fully transparent, no black boxes
- UK data residency, your clients' data stays in the UK
“We built Rooby because we were tired of the year-end scramble. Now we see every liability move in real time, and our clients get proactive advice instead of a nasty surprise.”
Adam Harvey, Founder & Director, Rooby
Xero App Store
Rated 5.0 stars by our early users.
★★★★★ 5.0 average, all five reviews on the Xero App Store
Much need app
Great app that perfectly fills a gap in the market. Easy to set up. Very easy to use.
Highly Recommend!
Fantastic app, extremely helpful!
Essential
Extremely helpful and I'd argue essential to any business.
Amazing app!
The perfect app to help me track my tax liabilities. I can't believe I didn't start using Rooby sooner. I recommend it to anyone who doesn't want to be caught short by surprise tax bills ever again!
Really Useful App
I use Rooby to track my tax liabilities for a company that rents out homes, found nothing else similar to it and is really easy to use!
Common questions
Questions from
accountants
Does it work with all Xero organisations or just UK ones?
Rooby is built specifically for UK Xero organisations. CT and VAT calculations are based on HMRC rules, it won't give meaningful results for non-UK entities. We handle UK Corporation Tax and UK VAT schemes (standard, flat rate, cash accounting).
How long does setup take?
Under 5 minutes per client. Sign up, click "Add Client," authorise via Xero's OAuth screen, and Rooby syncs 12–18 months of history. First forecast is usually ready within a minute.
Can my clients see the Rooby data?
Only if you choose to enable the client portal. It's off by default, you're always in control of what clients see. When enabled, clients get a read-only view of their dashboard. They can't see other clients, can't change anything, and can't access your firm-level data.
Does it replace my CT600 software?
No. Rooby fills the gap between year-ends, giving you a live CT estimate any day of the year. You still use your existing tax compliance software to file the actual CT600. Think of Rooby as the planning layer that sits on top.
How accurate are the forecasts?
The CT forecast is a best-estimate based on the data in Xero and the rules we apply. It handles the major adjustments automatically, but some items (e.g. capital allowances for specific assets, group relief elections) require manual input. Rooby flags where manual review is recommended rather than giving you a false sense of certainty.
Ready to start?
Stop estimating.
Start forecasting.
Replace end-of-year surprises with live, explainable tax forecasts for every client. 14 days free, no credit card needed.