Xero Integration · Oxford
Xero Integration in Oxford
Connecting Xero to the other systems a Oxford business runs, so invoices, payments and contacts stop being rekeyed. Xero's API is capable and rate-limited, which matters more than it sounds — a naive integration pushing a day's invoices in a loop will hit those limits and stop partway.
Why this comes up
The problem
Sales are recorded in one system and invoices are created again in Xero by hand. Payments are matched manually, and month-end starts with reconciling two versions of the same activity.
What you get
What we deliver
- Invoices created from your source system automatically, with correct tax treatment
- Payments and settlements reconciled, including processor fees as separate lines
- Contacts synced without creating duplicates in either system
- Nominal and tracking codes mapped so reporting stays meaningful
- Rate limits respected through batching and queuing rather than retry storms
- Failures surfaced to whoever does the books, not buried in a log
Want this scoped for your business in Oxford?
Thirty minutes, no charge, no sales script. You leave with a written summary of what xero integration would actually involve — whether or not you use us.
Working in Oxford
South East
Oxford's economy runs on research and life sciences, and a lot of the work here starts with a research group or spin-out that needs a prototype turned into something other people can safely use.
Research groups and spin-outs needing a prototype turned into a supportable product make up most of the local demand.
Sectors we work with in Oxford
- Research & Higher Education
- Life Sciences
- Publishing
- Technology
- Tourism
What we work with
Technologies and platforms
- Xero API
- TypeScript
- Node.js
- PostgreSQL
- OAuth 2.0
Who we work with
Industries we serve
- Professional services
- Ecommerce
- Construction
- Hospitality
- Retail
Why us
Why Oxford businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Oxford
Looking for the full picture? See our Xero Integration services, everything we do in Oxford or browse everything we do.
Xero Integration in Oxford — common questions
- What usually breaks a Xero integration?
- Rate limits and OAuth token expiry. Xero caps calls per minute and per day, so bulk pushes need batching and queuing. Tokens also need refreshing on schedule — an integration that only refreshes after a failure will fail first, usually at month-end.
- How should VAT be handled?
- By mapping tax rates explicitly from the source system rather than relying on defaults. Getting it wrong produces returns that need correcting, and since Making Tax Digital requires digital record-keeping, the mapping is worth agreeing with your accountant.
- Can it handle payment processor fees?
- Yes, and it should. A Stripe or PayPal settlement arrives net of fees, so posting only the net figure understates both revenue and costs. Splitting gross and fee into separate lines is what makes bank reconciliation match without manual adjustment.
- Will it create duplicate contacts?
- Only if matching rules are not defined. Xero matches on name by default, which produces duplicates the moment a name is entered slightly differently. Matching on your own identifier is more reliable and worth setting up first.
- Do you work with businesses across Oxfordshire?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout South East, including Oxford and the surrounding Oxfordshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Oxford businesses do you usually work with?
- Research groups and spin-outs needing a prototype turned into a supportable product make up most of the local demand. Beyond that we work across Research & Higher Education, Life Sciences, Publishing, Technology and Tourism.
- Do you cover the areas around Oxford?
- Yes — we work throughout South East, including Reading, Milton Keynes, Cambridge, London. Oxford is an urban area of roughly 170,000+, and we take on work across the wider Oxfordshire region rather than the city boundary alone.
Talk to us about Xero Integration in Oxford
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise