How often should a BIA Function Register be reviewed?

It is commonly reviewed at least annually, or whenever there are major changes to operations, suppliers, systems, premises, or regulatory requirements.

Is a Business Impact Analysis Function Register legally required in the UK?

No single UK law requires every business to have one, but it supports good governance, resilience, risk management, and compliance with sector-specific continuity expectations.

Can a BIA Function Register help with disaster recovery planning?

Yes. It can identify critical systems, data, suppliers, and recovery priorities needed for effective IT disaster recovery and operational resilience planning.

What is the difference between RTO and maximum tolerable downtime?

Recovery Time Objective (RTO) is the target time to restore a function. Maximum Tolerable Downtime (MTD) is the longest acceptable disruption before serious harm occurs.

How can an AI-generated BIA Function Register be used?

An AI-generated BIA Function Register provides a fast, structured starting point that can be tailored to your organisation’s UK operations and continuity planning needs.

EN-GB>Governance>Business Continuity Plan>UK Business Impact Analysis Function Register

Business Impact Analysis Function Register In The United Kingdom

Created: 8 Jun 2026

This dataset helps United Kingdom organisations identify critical functions, assess operational dependencies, and prioritise recovery planning. It supports practical resilience decisions as part of an AI Generated Business Continuity Plan for use in the United Kingdom.

Business Function	Criticality Level	Key Outputs	Key Dependencies	Maximum Tolerable Period of Disruption
Executive Management
Crisis and incident management	Critical	Decisions, escalation, stakeholder instructions	Crisis team, communications, incident plans, contact lists	0-4 hours
Executive leadership and delegated authority	Critical	Authorisations, priorities, emergency approvals	Directors, deputies, board packs, secure communications	0-8 hours
External crisis communications	Critical	Public statements, media responses, customer updates	Approved messages, website, social media, spokespeople	4-12 hours
Human Resources
Internal employee communications	Critical	Staff alerts, safety instructions, work updates	HR system, email, SMS, intranet, managers	0-8 hours
Finance
Supplier and creditor payments	Important	Approved payments, remittance advice	Banking portal, ERP, approvers, supplier data	2-5 working days
Finance, Human Resources
Payroll processing	Critical	Salary payments, payslips, payroll reports	Payroll software, bank access, HR data, HMRC submissions	1-3 working days before pay date
PAYE real time information reporting	Critical	Full Payment Submissions to HMRC	Payroll software, Government Gateway, pay data	Before or on payday
Finance, Sales
Customer invoicing	Important	Invoices, credit notes, billing files	ERP, CRM, contract terms, pricing data	2-5 working days
Finance
Credit control and cash collection	Important	Collections, statements, debtor updates	Accounts receivable, banking data, customer contacts	3-7 working days
Cash management and liquidity monitoring	Critical	Cash forecasts, funding decisions	Bank feeds, finance team, forecasts, lenders	1-2 working days
VAT return preparation and submission	Important	VAT return, payment instruction	Accounting records, MTD software, HMRC access	Before statutory filing deadline
Finance, Legal and Compliance
Statutory accounts preparation and filing	Important	Annual accounts, Companies House filing	Accounting records, directors, accountants, filing access	Before statutory filing deadline
Corporation tax return and payment	Important	CT600 return, tax payment	Tax computations, accounts, HMRC access, adviser	Before statutory filing or payment deadline
Finance
Month-end financial close	Standard	Management accounts, reconciliations, reports	ERP, bank feeds, finance staff, journals	5-10 working days
Human Resources
Recruitment and onboarding	Standard	Offers, starter packs, onboarding tasks	ATS, HR staff, managers, identity checks	1-3 weeks
Human Resources, Legal and Compliance
Right to work checks	Important	Verified work eligibility records	Candidate documents, Home Office service, HR records	Before employment starts
Human Resources
Sickness and absence management	Important	Absence records, SSP processing, cover plans	HR system, managers, payroll, medical evidence	2-5 working days
Human Resources, Legal and Compliance
Employee relations and grievances	Standard	Case records, outcomes, advice	HR staff, managers, policies, legal advice	1-2 weeks
Facilities, Human Resources, Legal and Compliance
Workplace health and safety management	Critical	Risk controls, safety instructions, incident records	Competent persons, premises data, HSE guidance, managers	0-24 hours
RIDDOR incident reporting	Critical	Reportable incident notifications	Incident details, responsible person, HSE reporting portal	Immediately for specified serious incidents
Operations
Core product or service delivery	Critical	Delivered goods or services	Skilled staff, systems, premises, materials, suppliers	0-24 hours
Operations, Sales, Customer Service
Order processing and fulfilment	Critical	Accepted orders, fulfilment instructions	CRM, ERP, stock data, payment system, staff	4-24 hours
Operations
Warehousing and dispatch	Critical	Picked, packed and dispatched orders	Warehouse staff, WMS, couriers, stock, premises	4-24 hours
Operations, Procurement
Logistics and transport coordination	Important	Transport bookings, delivery schedules	Carriers, routing tools, fuel, drivers, customs data	1-3 working days
Inventory and stock control	Important	Stock records, replenishment alerts	ERP, barcode scanners, stock counts, suppliers	1-3 working days
Operations
Quality assurance and release checks	Important	Inspection results, release approvals	QA staff, test equipment, standards, records	1-5 working days
Production or resource scheduling	Important	Schedules, capacity plans, work allocations	Planning tools, demand forecasts, supervisors, availability data	1-3 working days
Customer Service
Customer contact centre	Critical	Calls answered, chats, support tickets	Telephony, CRM, knowledge base, trained agents	0-8 hours
Customer Service, Legal and Compliance
Customer complaints handling	Important	Complaint responses, remedies, case records	CRM, complaints policy, managers, legal advice	2-5 working days
Customer Service, Finance, Operations
Returns, refunds and cancellations	Important	Refunds, return authorisations, cancellation records	Payment system, CRM, warehouse, consumer terms	2-7 working days
Customer Service
Customer issue triage and escalation	Critical	Prioritised tickets, escalations, workarounds	Ticketing system, support staff, product specialists	0-12 hours
Customer Service, Operations
Service level monitoring	Important	SLA reports, breach alerts	CRM, reporting tools, contract terms, managers	1-3 working days
Information Technology
IT service desk	Critical	Incident tickets, fixes, user support	Ticketing system, technicians, remote access, knowledge base	0-4 hours
Information Technology, Legal and Compliance
Cyber incident response	Critical	Containment actions, evidence, recovery decisions	Security tools, logs, backups, specialists, legal input	0-4 hours
Information Technology
Data backup and restoration	Critical	Restored systems, recoverable data	Backup platform, storage, credentials, recovery runbooks	0-24 hours
Identity and access management	Critical	User access, MFA, account changes	Directory services, IAM tools, admins, approvals	0-8 hours
Network and connectivity management	Critical	Internet, VPN, LAN and Wi-Fi availability	ISPs, routers, firewalls, monitoring, network engineers	0-4 hours
Core business application support	Critical	ERP, CRM and workflow availability	Application owners, vendors, cloud hosting, databases	0-24 hours
Information Technology, Sales
Website and ecommerce operations	Critical	Online sales, content, customer self-service	Hosting, CMS, payment gateway, DNS, web team	0-12 hours
Finance, Information Technology, Sales
Card and online payment processing	Critical	Authorised payments, settlement files	Payment gateway, acquirer, fraud tools, banking data	0-8 hours
Legal and Compliance, Information Technology
Data protection compliance	Critical	Compliance advice, records, risk assessments	DPO or lead, processing records, policies, systems	1-3 working days
Personal data breach assessment and notification	Critical	Breach assessment, ICO notification, data subject notices	Incident facts, legal advice, DPO, security logs	Within 72 hours where notifiable
Legal and Compliance, Customer Service
Data subject access request handling	Important	DSAR responses, identity checks, disclosures	Data maps, systems access, legal review, ID verification	Within one month of request
Legal and Compliance, Sales, Procurement
Contract management	Important	Signed contracts, variations, renewal notices	Contract repository, approvers, legal counsel, counterparties	3-10 working days
Legal and Compliance, Executive Management
Regulatory reporting and notifications	Critical	Regulator notices, reports, attestations	Compliance staff, incident data, board input, portals	0-72 hours where incident-driven
Company secretarial filings	Important	Confirmation statement, director changes, registers	Company records, directors, Companies House access	Before statutory filing deadline
Finance, Legal and Compliance, Facilities
Insurance notification and claims management	Important	Claim notifications, evidence packs, loss records	Policy documents, broker, incident evidence, finance data	1-5 working days
Facilities
Premises access and security	Critical	Secure access, visitor controls, lock management	Keys, access control, guards, landlord, security systems	0-8 hours
Utilities and building services	Critical	Power, heating, water, ventilation availability	Utility providers, contractors, plant rooms, landlord	0-24 hours
Facilities, Legal and Compliance
Fire safety management	Critical	Fire risk controls, evacuation arrangements	Responsible person, alarms, inspections, contractors	Immediate before occupation
Facilities
Facilities maintenance and repairs	Important	Repairs, maintenance logs, safe workplaces	Contractors, helpdesk, spares, landlord, permits	1-5 working days
Facilities, Legal and Compliance
Physical records and document storage	Standard	Retrieved files, archived records	Storage provider, indexing, access permissions, transport	1-3 weeks
Procurement
Supplier sourcing and purchasing	Important	Purchase orders, supplier selections	Procurement system, budgets, approvers, supplier lists	2-5 working days
Procurement, Operations, Information Technology
Critical supplier management	Critical	Supplier escalations, continuity assurance, alternatives	Supplier contacts, contracts, SLAs, risk assessments	0-24 hours for critical suppliers
Procurement, Finance
Purchase order approval	Standard	Approved POs, spend commitments	ERP, budget holders, delegation limits, supplier records	3-10 working days
Procurement, Legal and Compliance
Supplier onboarding and due diligence	Standard	Approved suppliers, due diligence records	Supplier data, checks, contracts, risk criteria	1-3 weeks
Sales
Sales enquiry handling	Important	Qualified leads, responses, appointments	CRM, website forms, phones, sales team	1-3 working days
Quotation and proposal management	Important	Quotes, proposals, bid documents	Pricing tools, templates, product data, approvals	2-5 working days
Sales, Customer Service
Key account management	Important	Client updates, renewals, retention actions	Account managers, CRM, contracts, service data	3-7 working days
Sales, Executive Management
Sales pipeline reporting	Standard	Forecasts, pipeline dashboards	CRM data, sales managers, reporting tools	1-3 weeks
Sales
Marketing campaign execution	Standard	Campaigns, emails, adverts, landing pages	Marketing platform, content, approvals, customer data	1-4 weeks
Sales, Legal and Compliance, Finance
Bid and tender submissions	Important	Tender responses, clarifications, pricing schedules	Bid portal, contributors, pricing, approvals, legal review	Before tender deadline
Executive Management, Operations, Legal and Compliance
Business continuity plan maintenance	Important	Updated BCPs, tests, lessons learned	Function owners, risk data, test schedules, management approval	Review after major change or incident
Executive Management, Legal and Compliance, Operations
Important business services mapping	Critical	Service maps, impact tolerances, scenario tests	Board, service owners, third parties, systems, data	As set by impact tolerance
Information Technology, Human Resources, Facilities
Remote working enablement	Critical	Remote access, devices, collaboration tools	VPN, laptops, MFA, cloud services, IT support	0-24 hours
Legal and Compliance, Information Technology
Records retention and legal hold	Standard	Retention schedules, preserved records, deletions	Document systems, legal instructions, data owners	1-4 weeks
Finance, Information Technology, Legal and Compliance
Fraud prevention and payment approval controls	Critical	Fraud checks, approvals, blocked payments	Bank controls, approvers, MFA, supplier verification	0-24 hours
Legal and Compliance, Finance, Sales
Anti-money laundering checks	Critical	Customer due diligence, monitoring, reports	CDD systems, trained staff, sanctions data, MLRO	Before regulated transaction or onboarding
Legal and Compliance, Finance, Sales, Procurement
Sanctions screening	Critical	Screening results, blocked escalations	Sanctions lists, screening tool, customer and supplier data	Before payment, onboarding or transaction
Facilities, Legal and Compliance
Mailroom and post handling	Standard	Received post, scanned documents, outgoing mail	Premises access, postal services, scanning, staff	3-10 working days
Executive Management, Finance, Operations
Management information reporting	Standard	Dashboards, KPIs, board reports	BI tools, source data, analysts, management timetable	1-4 weeks
Human Resources, Legal and Compliance
Mandatory training administration	Standard	Training records, completion reminders	LMS, staff lists, compliance requirements, managers	2-6 weeks
Executive Management, Legal and Compliance
Board governance and minutes	Standard	Agendas, minutes, resolutions, action logs	Directors, company records, meeting tools, advisers	2-6 weeks

Which Business Functions Should A UK Business Prioritise In A Business Impact Analysis?

The register shows that the highest-priority functions are usually those that protect cash flow, customers, people, regulated obligations and essential technology. Payroll, incident management, cyber security, customer support, order fulfilment, finance operations and statutory reporting commonly need recovery within hours or a few days, rather than weeks.

How Should Recovery Times Be Set For A Business Continuity Plan?

Maximum tolerable periods of disruption should be set by business impact, not by convenience. Functions linked to legal duties, customer harm, payment deadlines, data protection, health and safety or contractual service levels should normally have shorter tolerances. UK organisations should also consider sector rules, including FCA operational resilience requirements where applicable, and statutory duties such as HMRC payroll reporting, Companies House filings and UK GDPR compliance.

What Dependencies Should Be Tested Before A Disruption?

Technology dependencies: ERP, CRM, payment platforms, telephony, collaboration tools, identity access, backups and cyber monitoring are shared dependencies across many critical functions.
People dependencies: payroll, customer service, procurement, finance and incident response often rely on named specialists, delegated authorities and trained deputies.
External dependencies: banks, insurers, logistics providers, cloud providers, utilities, landlords and outsourced service providers can determine whether recovery objectives are realistic.
Legal and compliance dependencies: breach notification, statutory filings, contract management and employment obligations should be mapped to accountable owners and escalation routes.

What Should UK Businesses Document In A Business Continuity Plan?

A practical UK business continuity plan should convert this register into recovery priorities, contact lists, manual workarounds, supplier escalation routes, system recovery sequences and decision authorities. It should clearly identify which functions must restart first, the minimum staffing and systems required, and the point at which legal, insurance, customer or regulator notifications are triggered.

Business Impact Analysis Function Register

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FAQs

What is a Business Impact Analysis Function Register?

A Business Impact Analysis (BIA) Function Register is a structured list of business functions, their priorities, dependencies, recovery time objectives, and operational impact if disrupted.

Why is a BIA Function Register important for UK businesses?

What should a Business Impact Analysis Function Register include?

How does a BIA Function Register support a Business Continuity Plan?

Who should complete a Business Impact Analysis Function Register?

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