IT support for accountants means specialist managed IT for accounting firms with deep knowledge of Sage, IRIS, Xero, CCH, and TaxCalc — IT that never fails during 31 January Self Assessment or 31 March year-end. From £25/user/month. ICAEW/ACCA compliance, MTD infrastructure, Cyber Essentials certification. 15-min SLA, 365 days.
IT SUPPORT FOR
ACCOUNTANCY FIRMS
Sage · IRIS · Xero · CCH · MTD
4.9★ rated IT support for accountancy firms — specialist managed IT for accounting firms that never fails during 31 January or 31 March deadlines.
4.9★ · 97% retention · Microsoft Solutions Partner · Sage · IRIS · Xero · CCH · TaxCalc · London & UK
Coreitech provides specialist IT support for accountants and accounting firms across London and the UK. Sage, IRIS, Xero, CCH, TaxCalc, QuickBooks — all supported. Making Tax Digital IT infrastructure, Cyber Essentials certification, and Microsoft 365 — built around your practice calendar, not a generic SME template.
"Coreitech understand accounting software dependencies better than any IT company we've used. No more Sage going down before a deadline."
— Managing Partner, London Chartered Accountancy Practice
"They had us Cyber Essentials certified in 3 weeks — which our largest client required before renewing our contract."
— Director, Tax Advisory Firm, City of London
+ Capium, Moneysoft, Kashflow and other UK accountancy platforms.
"Coreitech eliminated our Sage downtime and got us Cyber Essentials certified in 3 weeks — our largest client required it before renewing."
A 22-user chartered accountancy practice in the City of London was experiencing recurring Sage 200 server failures during January Self Assessment — their previous IT provider had no specialist accounting software knowledge. After switching to Coreitech (Advanced plan — £50/user/month), Sage downtime was eliminated through proactive dependency monitoring, the firm achieved Cyber Essentials certification in 3 weeks, and the 15-minute critical SLA was maintained throughout the entire January deadline period.
Is your accounting firm experiencing
any of these IT problems?
If your firm is experiencing any of the below, the right IT support can make a significant difference to your security, compliance, and peace of mind.
Sensitive client data at risk
Accounting firms hold the most sensitive financial data of clients — tax records, payroll, accounts. A breach means ICO enforcement, professional body referrals, and client loss.
Sage, IRIS or CCH going down at deadline
When accountancy software fails during 31 January Self Assessment or March year-ends, the consequences are immediate and severe. Generic IT providers don't understand these dependencies.
Slow IT response killing productivity
Waiting hours for IT support during a tax deadline period is unacceptable. Most accounting firms suffer from slow, reactive IT that costs them clients and reputation.
Making Tax Digital compliance gaps
MTD infrastructure needs specialist configuration. Wrong setup means HMRC submission failures, penalty exposure, and client embarrassment — often undetected until it's too late.
Cyber Essentials now required by clients
Corporate clients and PI insurers increasingly require Cyber Essentials certification before renewing relationships. Firms without it are losing business to certified competitors.
GDPR obligations for client financial data
Client data is highly sensitive personal data under UK GDPR. Inadequate controls leave firms exposed to ICO action and the professional reputational damage that follows.
What is IT support for accountants?
IT support for accountants is specialist managed IT services tailored to the needs of accounting firms, chartered accountants, tax advisers, and bookkeepers. Unlike generic SME IT support, accountancy IT support requires deep expertise in practice-specific software (Sage, IRIS, CCH, Xero, TaxCalc), HMRC Making Tax Digital infrastructure, ICAEW and ACCA compliance obligations, and the critical deadline-driven nature of tax filing periods.
Accounting firm IT support typically includes unlimited helpdesk, proactive monitoring of Sage/IRIS/CCH server dependencies, cyber security aligned to professional body expectations, Cyber Essentials certification, Microsoft 365 management, and on-site engineering — all delivered for a fixed monthly per-user price. The defining characteristic of good IT support for accountants is that it never fails during 31 January Self Assessment or 31 March year-end deadlines.
Audit & software discovery
We inventory your Sage, IRIS, CCH, or Xero environment, server dependencies, MTD configuration, and security posture — before anything breaks.
Managed support & monitoring
Unlimited helpdesk, 24/7 proactive monitoring of accounting software dependencies, Microsoft 365 management, and 15-min SLA — 365 days including 31 January.
Compliance & deadline resilience
Cyber Essentials certification, pre-deadline health checks, tested backups, and priority escalation during Self Assessment and year-end periods.
Coreitech vs other IT options for accountants
Not all IT support is equal for accounting firms. Here's how specialist accountancy IT support compares.
| Capability | Coreitech | Generic IT Company | In-House IT | Break-Fix |
|---|---|---|---|---|
| Sage, IRIS, CCH specialist knowledge | ✓ | Limited | Rarely | No |
| Making Tax Digital infrastructure | ✓ | Basic | Rarely | No |
| Pre-deadline health checks (Jan & Mar) | ✓ | No | No | No |
| 15-min SLA including 31 January | ✓ | 2–4 hrs | Varies | Next day |
| Cyber Essentials certification | ✓ | Extra cost | No | No |
| ICAEW / ACCA compliance alignment | ✓ | Limited | No | No |
| Fixed monthly price (no surprises) | ✓ | Sometimes | Salary + | Hourly |
| 24/7 proactive monitoring | ✓ | Business hrs | Business hrs | Reactive |
| On-site engineers (London & SE) | ✓ | Limited | 1 person | Extra cost |
10 Questions Every Accountant Should Ask Their IT Provider
Before you switch IT providers — or sign with one for the first time — use this free buyer's guide. The 10 questions accounting firms should ask to avoid costly mistakes around Sage/IRIS/CCH expertise, January deadline SLAs, MTD infrastructure, and Cyber Essentials readiness.
- Do you have proven experience supporting Sage, IRIS, CCH or our specific accounting software?
- What is your SLA response time on 31 January — the busiest day of our year?
- Is accounting software support included in your monthly fee or charged extra?
- How do you handle Making Tax Digital (MTD) infrastructure and HMRC API connectivity?
- Can you provide Cyber Essentials certification — and have you done it for other accountancy firms?
+ 5 more critical questions inside the full guide.
Enter your details — we'll email the full guide to you instantly.
IT support that understands
accounting deadlines
Accounting firms operate to hard deadlines — tax returns, year-end accounts, audit sign-offs, payroll runs. When IT fails during a critical deadline period, the consequences are immediate and serious: client commitments missed, HMRC penalties, and reputational damage. Most IT companies don't understand this. Coreitech does.
We support accounting firms with specialist knowledge of the software you use, the compliance requirements you face (ICAEW, ACCA, MTD), and the risk profile of your client data. Our IT support for accountants is built around your practice calendar — not a generic SME template.
Managed IT for Accountants
All-inclusive managed IT for accounting firms, chartered accountants, tax advisers, and bookkeepers. Unlimited helpdesk, proactive monitoring, on-site engineers, and patch management — one fixed monthly price.
Accounting Software Support
Expert support for Sage, Xero, QuickBooks, CCH, IRIS, Thomson Reuters, and specialist accountancy platforms. We understand accountancy software dependencies, Making Tax Digital (MTD) infrastructure, and HMRC connectivity.
Cyber Security for Accountants
Enterprise cyber security protecting client financial data. Email phishing defence, endpoint detection, dark web monitoring, and 24/7 threat monitoring. Aligned to ICAEW and ACCA security expectations.
Cloud & Microsoft 365 for Accountants
Microsoft 365 Business Premium and cloud migration for accounting practices. Secure client portals, SharePoint document management, Teams integration with practice management software, and Defender for Business.
Cyber Essentials for Accounting Firms
End-to-end Cyber Essentials and CE+ certification. Increasingly required for ICAEW/ACCA membership compliance, professional indemnity insurance, and supply chain security requirements from corporate clients.
Making Tax Digital (MTD) IT Support
IT infrastructure aligned to HMRC Making Tax Digital requirements. MTD-compatible software, secure HMRC API connectivity, data governance for client financial records, and bridging software support.
IT risks that keep accounting
firm partners awake
Ransomware during filing deadlines
Ransomware timed to hit during January Self Assessment, March year-ends, or other deadline periods maximises leverage. Proactive security and tested backups are essential for accounting firms.
Client financial data breach
Accountants hold highly sensitive client financial, personal, and commercially confidential data. Breaches trigger ICO investigations, potential fines, and professional body referrals.
MTD compliance failure
IT infrastructure that isn't correctly configured for Making Tax Digital can create submission failures, HMRC penalty exposure, and client service failures at the worst possible times.
Accounting software dependency failure
When Sage, IRIS, or CCH is down during a critical deadline period, the consequences are severe. Most accountancy platforms have specific server dependencies that generic IT companies don't understand.
IT support tailored to
your type of accounting practice
Sole Practitioners
Small to Medium Practices
Large Accounting Firms
Audit & Assurance Firms
IT support for accountants:
what makes us different
Most IT companies treat an accounting firm like any other SME. Coreitech doesn't. IT support for accountants requires a very different approach — one built around the software you rely on, the deadlines you work to, and the compliance obligations your professional body places on you.
We support accounting firms across London and the UK with specialist knowledge of Sage, IRIS, CCH, Xero, QuickBooks, and TaxCalc — including server-side dependencies, annual upgrade management, and MTD-compatible configurations. We understand that Sage 200 running on an ageing server is not the same problem as a broken Microsoft 365 inbox.
Our IT support for chartered accountants is used by practices ranging from sole practitioners to mid-size firms with multiple offices. We provide a single fixed monthly price covering unlimited helpdesk, proactive monitoring, on-site support, and accounting software expertise — the same transparent pricing model your clients expect from you.
Which accounting firms use our IT support?
IT support for accountants:
common questions
Q.What IT support do accountants and accounting firms need?
Accounting firms need IT that understands their specific software stack (Sage, Xero, IRIS, CCH), HMRC MTD connectivity, client data GDPR obligations, and the security expectations of ICAEW and ACCA. The busiest periods in accounting — tax filing deadlines, year-end audit periods — require IT that is reliable and proactively monitored, because downtime during a filing deadline is catastrophic. Coreitech specialises in accounting firm IT and understands these requirements.
Q.Can you support Making Tax Digital (MTD) IT requirements?
Yes. Making Tax Digital is reshaping accounting firm IT infrastructure — requiring MTD-compatible software, secure API connectivity to HMRC, digital record-keeping, and the ability to manage bridging software where needed. We support the full range of MTD-compatible platforms (Xero, QuickBooks, Sage, IRIS) and help accounting firms ensure their IT infrastructure is correctly configured for MTD for Income Tax (ITSA) and MTD for VAT.
Q.Do you support Sage, IRIS, CCH, and other accountancy platforms?
Yes. We support all major UK accountancy platforms including Sage 50, Sage 200, Sage Intacct, IRIS, CCH (Wolters Kluwer), Thomson Reuters CS Professional Suite, TaxCalc, Digita, and Capium. This includes server-side dependencies, print and PDF infrastructure, annual upgrade management, and licensing support. We also support payroll software (BrightPay, Moneysoft) and integration with cloud platforms (Xero, QuickBooks, FreeAgent).
Q.How do you protect client financial data for accounting firms?
Client financial data is highly sensitive personal and commercially confidential data subject to UK GDPR. We implement encrypted storage for client files, role-based access controls ensuring staff only access client data they're assigned to, secure client portals for document exchange (replacing email), email security controls preventing data leakage, MFA on all systems, and EDR on all endpoints. We also support DSAR processes for accountancy clients with data subject access obligations.
Q.What are ICAEW and ACCA IT security expectations?
ICAEW and ACCA both set expectations around member firms' data security and professional standards that have IT implications. Cyber security is increasingly referenced in quality assurance reviews. ICAEW's guidance on cyber security for accountants aligns closely with the Cyber Essentials framework. We help accounting firms achieve Cyber Essentials and CE+ certification, which provides documented evidence of security controls aligned to professional body expectations and PI insurer requirements.
Q.How much does IT support for an accounting firm cost?
Managed IT support for accounting firms from Coreitech costs £25/user/month (Standard plan) or £50/user/month (Advanced plan — includes Microsoft 365 management, on-site engineers, dedicated account manager, and cyber security). Both plans include unlimited helpdesk, on-site support, monitoring, and accounting software support with no hidden charges.
Q.Can you support remote and hybrid working accountants?
Yes. We support accountancy firm staff wherever they work — office, home, or on the go. This includes secure remote access to Sage, IRIS, and CCH via VPN or hosted desktop, Microsoft 365 Teams and SharePoint for collaboration, MDM (Intune or Jamf) for device management, and MFA enforcement across all cloud services. Remote-first and hybrid accounting practices are fully supported across all our plans.
Q.How do I switch my accounting firm's IT support to Coreitech?
Switching IT providers is straightforward with Coreitech. We conduct a free IT audit first to understand your accounting software stack, infrastructure, and any gaps. We then provide a fixed-price proposal with a clear onboarding plan. We handle everything: notifying your incumbent provider, documenting all your Sage/IRIS/CCH/Xero configurations, onboarding your staff, and transferring monitoring. Most accountancy firm transitions complete within 48 hours. We schedule go-live around your deadline calendar — never during January Self Assessment or March year-ends.
Q.Can Coreitech work alongside our existing in-house IT person?
Yes. Many accounting firms have an internal IT coordinator or office manager who handles basic requests but lacks specialist accounting software expertise or cyber security capability. Coreitech offers co-managed IT for accounting firms — your internal person handles day-to-day user support while Coreitech provides specialist Sage/IRIS/CCH escalation, 24/7 security monitoring, Cyber Essentials certification, and on-site engineering backup. This is common in practices with 20–100 staff.
Q.What questions should I ask an IT support company for my accounting firm?
Key questions to ask any IT provider before engaging for accountancy IT support: (1) Do you have experience supporting Sage, IRIS, CCH, or our specific accounting software? (2) What is your SLA on 31 January — the busiest and most critical day? (3) Do you include accounting software support in your monthly fee or charge extra? (4) How do you handle our MTD infrastructure and HMRC API connectivity? (5) Can you provide Cyber Essentials certification — and have you done this for other accounting firms? (6) What is your onboarding process and how long does transition take? Coreitech answers yes to all of these.
IT that never fails
during filing deadlines
For accountants, IT downtime during January Self Assessment, March year-ends, or payroll runs is catastrophic. Most IT companies treat these as normal incidents. We treat them as emergencies — because they are.
Coreitech accountancy clients benefit from priority escalation during deadline periods, proactive pre-deadline health checks (the week before 31 January and 31 March), and guaranteed 15-minute critical response SLA — 365 days a year.
All prices + VAT. Accounting software support included in all plans.
Get an exact quoteWhat accounting firms say
about Coreitech
"Coreitech understand Sage and IRIS server dependencies better than any IT company we've used. No more downtime before the January deadline. The 15-minute SLA is real — on 31 January at 10pm they were still responding in under 5 minutes."
"They had us Cyber Essentials certified in 3 weeks — which our largest client required before renewing our outsourced payroll contract. The MTD infrastructure they built also passed HMRC audit first time."
"We moved from a break-fix provider and the difference is staggering. Issues that used to derail deadline periods are now resolved before we even notice them. Their understanding of CCH and TaxCalc is genuine, not just claimed."
How to switch your accounting firm's
IT support to Coreitech
Switching IT providers sounds disruptive — it doesn't have to be. Coreitech handles the full transition from your existing provider, including taking over contracts, documenting your accounting software dependencies, onboarding your users, and ensuring continuity of service throughout. Most accountancy firm transitions complete within 48 hours with zero disruption.
We take a full inventory of your Sage, IRIS, CCH, or Xero environment before go-live — so we know your system before we touch it, not after something breaks.
Already have an in-house IT person?
We work alongside them
Some accounting firms have an internal IT coordinator or office manager handling basic IT. Coreitech can work in a co-managed IT model — your internal person handles day-to-day requests and user onboarding, while Coreitech provides the specialist accounting software expertise, cyber security, infrastructure monitoring, and senior escalation they can't deliver alone.
This is increasingly common in mid-size accounting practices (20–100 staff) where a full outsourced model doesn't fit but the in-house resource lacks specialist Sage/IRIS/CCH expertise or cyber security capability.
How we deliver accountancy IT support
Our methodology is built around the realities of running an accounting practice — software dependencies, filing deadlines, and professional body compliance.
Software-first audit
Every engagement starts with a full inventory of your Sage, IRIS, CCH, Xero, and TaxCalc environment — including server dependencies, licensing, and MTD configuration.
Deadline-aware SLAs
Our 15-minute critical response SLA applies 365 days a year — including 31 January Self Assessment and 31 March year-ends. No exceptions, no surcharges.
Compliance by default
Cyber Essentials certification, ICAEW/ACCA-aligned security controls, and GDPR-compliant client data handling are included — not bolted on after a breach.
Continuous monitoring
24/7 proactive monitoring of accounting software dependencies, server health, and backup integrity — issues resolved before they reach your team.
IT support built for
accounting practices
Book a free accounting IT audit. We'll review your software stack, security posture, MTD readiness, and Microsoft 365 setup.