100% cloud based giving you anytime, anywhere access and potential hardware savings
Accounts Integration
Coretime can interface with your Accounts package, providing a two-way accounting interface so data only needs to be entered once and is shared across both applications. As a leading accounts integration software, Coretime is the ideal solution for businesses running their finances on Sage accounting integration or Xero accounting integration, enabling seamless financial management and automated data sync between accounting and timesheets.

Account Integration
Coretime can be easily integrated with accounting, CRM, and project management applications to eliminate double-entry of data common in many businesses. Information entered once is automatically shared across connected systems, reducing errors and saving time. This seamless integration streamlines workflows and provides a unified view of projects, timesheets, expenses, and client information.
Sage Business Cloud Accounting
Sage 50 Accounts
Designed for businesses up to 20 users, reducing time required to handle routine but time-consuming accounting tasks and reduce data entry
Sage 200 Standard
Logical upgrade for those that have outgrown Sage 50 Accounts or are looking for a cloud-based solution
Sage 200 Professional
Gives you more choice and more freedom. Consisted of highly integrated software modules designed to help your business run smoothly and efficiently, connecting up your business and sharing information.
Xero Accounts
100% online, easy to use accounting software, designed for small businesses to run their business accounting
Benefits
Coretime integrates with any Sage Accounts package, offering these benefits:
- Create Customers and Suppliers in either Sage Accounting or Coretime and send to the other system
- Create Sales Receipts in Sage and push to Coretime
- Enter expenses in Coretime and send to Sage Accounts
- Create Sales Invoices in Coretime and push to Sage Accounts
- Create Purchase Invoices in Sage Accounts and push to Coretime
Benefits of Coretime Integration with Xero:
- Create Customers and Suppliers in Xero and push to Coretime
- Create Sales Receipts in Xero and push to Coretime Receipts can only transfer to Coretime if entered manually in Xero. It does not work for payment process via Bank Feeds or Auto Allocations.
- Create Sales Invoices in Coretime and push to Xero
Get in touch
For more information please get in touch on +44 1423 653800 or email us on sales@coretime.com
Why not checkout our resources
View all our resources29 Aug 2025
Time Tracking Matters for Accountants, R&D Teams, and AEC Firms
Tracking employee hours accurately is essential for payroll, compliance, and productivity but outdated systems and spreadsheets often create errors and wasted time.
You’re in good company
Join the growing number of businesses transforming their operations with Coretime, starting from just £20/€25 per user per month. Our customers are strengthening client relationships, gaining real-time project visibility, and driving measurable growth.
Explore their success stories below and see how Coretime can deliver powerful results for your organisation at a price that makes sense.
Aircraft Leasing & Management
We have recently purchased Coretime through Onesys and were impressed with their responsiveness to our original enquiry and to our subsequent questions. The process for understanding what the software could do for us was efficient and straightforward, as was the administration involved in setting-up the account and finalising the agreement.

Nicola Plummer
Aircraft Leasing & Management
AJA Architects
For us, the main benefit is that our system is now more user-friendly in terms of project managers being able to access information, such as seeing how a project is performing against budget. They can analyse how time is being spent and what proportion of it is earning fees – it’s easy to translate.

Matt Simpson
AJA Architects
Callisto Consulting
Since purchasing Coretime our time spent on administrative tasks, especially around invoicing has greatly reduced. We can also now respond to Client queries much more efficiently and with a more accurate, trusted response.
Overall the processes that we undertake using Coretime are much quicker and simpler and along with the benefits we’re now receiving in how we can report on our Project data using different parameters, we expect to see a return on investment within a year based on administration time saved.

Paul Bunyan
Callisto Consulting
R.G. Parkins & Partners
The Coretime system is easy to use, accurate, and has helped to increase our efficiencies, we would absolutely recommend it to other companies in that we find it invaluable.

David Heron
R.G. Parkins & Partners
GWP Engineering Consultants
Coretime are a real business partner, I find them very helpful, and if I have any questions or queries the support team is there to help me instantly. In short, we’re delighted.

Amanda Godwin
GWP Engineering Consultants
Caulmert
With staff based at different office locations and sometimes different parts of the world, having Coretime has brought us all together using one easily accessible web based system.

Donna Milne
Caulmert
JNP Group
Coretime is one of the most important packages within the business and is based on an annual subscription with full cloud access. This is a truly fantastic system and very affordable for a company of our size, it’s a fraction of the cost of some systems such as Autodesk and Microsoft.

Jamie Seabrook
JNP Group
Deaton Lysaght
Coretime is simply the easiest, yet the most economically advantageous programme that does so much more than just time management. The overall impact of Coretime has improved both productivity and efficiency.
Elizabeth Churchard
Deaton Lysaght
Pete Stead – P+HS Architects
A huge positive for us is the reduction of double entry of information, not having to manipulate information and enter it somewhere else has made such a drastic difference to how we run our business, we can’t imagine not having Coretime now!

Pete Stead – P+HS Architects
Optima Systems
Coretime provides an excellent service. Their team keeps us regularly updated, which means we always feel informed, supported, and confident that we’re getting the most out of the system.

Rob Price
Optima Systems
Spark Architects
We will be able to easily track non-billable work such as fee proposals and revisions, track outstanding invoices versus paid, and understand budget versus actuals and profitability at both project level and RIBA stages.
Spark Architects
Wildfowl & Wetlands Trust
It’s cut the time spent on routine administrative tasks and enabled us to be more efficient, which means we can focus more on the actual projects. We can have around 20 live projects on the go at any one time and if a client wants a breakdown of where the time is going, we need to respond almost instantly.

Monica
Wildfowl & Wetlands Trust