What Is an Electrical Installation Certificate (EIC)?
An Electrical Installation Certificate is the completion document you issue when you carry out new electrical installation work. That means new circuits, new consumer units, new wiring to an extension, a new outbuilding supply, or any other work that creates an installation rather than simply inspecting one that already exists. The EIC confirms that the work you designed, built, and tested meets the requirements of BS 7671:2018 Amendment 4:2026, the current wiring regulations. From 15 October 2026, Amendment 4 is the only version in force; until that date, the previous edition alongside A4 is acceptable, but if you are doing any work involving battery energy storage systems, Power over Ethernet, or ICT functional earthing, you need to be working to A4 already because those are new chapters.
The EIC has three sections: designer, constructor, and inspector and tester. On most sole-trader jobs you will sign all three yourself, which is perfectly legal so long as you are competent to do so. If a different person designed the installation and you built it, each party signs their own section. The certificate must accompany a schedule of inspections and a schedule of test results. Without those two schedules the EIC is incomplete and your certification body or local building control will reject it.
An EIC is not optional for notifiable work. Part P of the Building Regulations 2010 defines which electrical work in dwellings must be notified to building control. If you are registered with a competent person scheme such as NICEIC, NAPIT, or ELECSA, you self-certify by issuing the EIC and the scheme notifies building control on your behalf. If you are not registered, you must notify building control before you start the work and a building inspector will need to verify it. Failure to notify is a breach of Part P and can create serious problems when a property is sold, because solicitors will ask for the certificate.
- •Issued for: new circuits, rewires, new consumer units, extensions, outbuilding supplies
- •Confirms: the work meets BS 7671:2018 A4:2026
- •Must include: schedule of inspections and schedule of test results
- •Signed by: designer, constructor, inspector and tester (can be the same person)
- •Triggers: Part P notification via your competent person scheme
What Is an Electrical Installation Condition Report (EICR)?
An Electrical Installation Condition Report is an inspection and test of an existing electrical installation. You have not installed anything; you are assessing what is already there and reporting on whether it is in a satisfactory condition. The EICR is commonly called a periodic inspection report, and in domestic settings it is the document most people associate with landlord electrical safety checks.
The EICR produces a series of coded observations. C1 means danger present and requires immediate action. C2 means potentially dangerous and requires urgent remedial action. C3 is an improvement recommended but not required to achieve a satisfactory outcome. FI means further investigation is required before you can complete the report. An installation gets an overall outcome of either Satisfactory or Unsatisfactory. If there is a single C1 or C2 observation, the overall outcome must be Unsatisfactory regardless of everything else being fine.
For private rented properties in England, the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 make the EICR a legal requirement. Regulation 3 requires landlords to ensure that electrical installations are inspected and tested at intervals of no more than five years by a qualified person. Regulation 4 requires the landlord to supply a copy of the report to existing tenants within 28 days of the inspection, to new tenants before they occupy the property, and to the local housing authority within seven days if requested. Landlords who fail to comply face a financial penalty of up to £30,000 per breach. That figure comes directly from the Regulations and is worth quoting to any landlord who thinks an EICR is optional.
- •Issued for: inspection and testing of an existing installation
- •Produces: coded observations (C1, C2, C3, FI) and an overall Satisfactory or Unsatisfactory outcome
- •Legal basis in rented homes: Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020
- •Frequency in private rented sector: at least every five years
- •Penalty for non-compliant landlord: up to £30,000 per breach
Key Differences Between an EIC and an EICR
The fundamental difference is new work versus existing work. An EIC belongs to the electrician who carried out new installation work. An EICR belongs to the person who inspected an installation that was already there. You cannot substitute one for the other, and conflating them is one of the most common compliance errors in the trade.
The scope is also different. An EIC covers only the work you have done on that job. An EICR covers the whole installation, or a defined sample of it if the installation is too large to inspect in full, in which case you must state the extent and limitations clearly on the front page. An EIC confirms that new work is compliant. An EICR provides an opinion on the condition of an existing installation at the time of the inspection. That distinction matters in disputes: an EICR is a snapshot, not a guarantee that nothing will go wrong next week.
From a qualification standpoint, note that the Electrotechnical Assessment Specification 2026 (EAS 2026) introduces a specific requirement from 1 October 2026 for any employed person carrying out periodic inspection and testing to hold the relevant Level 3 award. Sole traders are not captured by the EAS employed-person rule in the same way, but your competent person scheme will have its own qualification requirements for EICR work, and you should check those independently of the EAS.
- •EIC: new installation work | EICR: existing installation inspection
- •EIC: signed by the installing electrician | EICR: signed by an inspector
- •EIC: confirms compliance of work done | EICR: gives an opinion on current condition
- •EIC: triggers Part P notification | EICR: satisfies Regulations 2020 landlord duty
- •EIC: no recurring interval | EICR: maximum five-year interval in rented sector
- •EIC: no coded observations | EICR: C1, C2, C3, FI coding with overall outcome
When to Issue an EIC: Common UK Scenarios
You issue an EIC any time you complete new electrical installation work in a dwelling that is notifiable under Part P of the Building Regulations 2010. The most common scenarios are: installing a new or replacement consumer unit, adding a new circuit to a kitchen or bathroom, wiring a house extension, providing a supply to a new outbuilding or garden room, and installing EV charging equipment where a new circuit is required. If the work you have done is notifiable, the EIC is not optional. It is the document that proves the work was done correctly and allows your scheme to notify building control.
There is a nuance with minor works. If you are adding a new socket to an existing circuit and the work is not in a special location such as a bathroom or kitchen, that may fall outside Part P notification. In those cases you would issue a Minor Electrical Installation Works Certificate rather than a full EIC. The Minor Works certificate covers additions to an existing circuit. If you are unsure whether work is notifiable, the IET guidance and your scheme's own technical helpline are the places to go. Getting it wrong in either direction creates problems: over-certifying is administrative waste, under-certifying is a potential breach.
For commercial premises, Part P does not apply, but the Electricity at Work Regulations 1989 still require that electrical systems be constructed and maintained so as to prevent danger, so far as is reasonably practicable under Regulation 4(2). You would still issue an EIC for commercial new work because BS 7671 applies, and because your client will need evidence that the installation meets the standard, particularly for their insurer and for future periodic inspections.
When to Issue an EICR: Common UK Scenarios
The EICR is the right document when you are inspecting and testing something you did not install, or when a defined interval has elapsed and the installation is due for a check. For landlords in England, the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 make the EICR mandatory before a new tenancy and at least every five years. That is the biggest driver of EICR volume for most domestic electricians. You will also carry out EICRs when a homeowner is buying a property and wants confidence in the electrical installation, when a business is reviewing its maintenance obligations under the Electricity at Work Regulations 1989, or when remedial work has been done following a previous Unsatisfactory report and a new EICR is needed to confirm the installation is now satisfactory.
The five-year interval is a maximum, not a target. Older installations, installations with known defects, and installations in high-risk environments such as swimming pools or agricultural premises may need inspection more frequently. As the inspecting electrician it is your professional judgement that sets the recommended interval on the report, and you should state a shorter interval where the condition of the installation warrants it. If you write five years on every report regardless of condition, that is not exercising professional judgement and your scheme may take a view on it.
One scenario that catches sole traders out is the newly completed rental property. A developer builds a house, the electrician issues an EIC on completion, and the developer immediately rents it out. The landlord then asks whether the EIC satisfies the Regulations 2020 duty. It does not, at least not indefinitely. The EIC confirms the installation was built correctly, but the Regulations require the installation to be inspected and tested as an existing installation. In practice, many schemes and local authorities accept a recent EIC (typically less than five years old) as evidence of satisfactory condition for the purposes of the initial tenancy, but you should not advise a landlord client to rely on this without checking the position with their local authority.
Common Confusion Points and How to Avoid Them
The single most common mistake is a landlord or letting agent referring to an EICR as a 'landlord electrical certificate' or an 'electrical safety certificate' and then presenting an old EIC to a tenant as if it fulfils the same function. It does not. An EIC proves the installation was built to standard at the time of construction. An EICR proves the installation was in satisfactory condition at the time of inspection. They answer different questions. If a landlord pushes back on this, point them to Regulation 3 of the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, which specifically requires inspection and testing of an existing installation.
A second confusion point is remedial work following an Unsatisfactory EICR. When you go back and fix C1 and C2 observations, what do you issue? If the remedial work involves new wiring or a new circuit, the new work gets an EIC. The original EICR stays as the record of what was wrong. You then carry out a further inspection to confirm the remedial work has resolved the issues and issue a new EICR with a Satisfactory outcome. Some electricians issue only an EIC for the remedial work and consider the job done. That is not correct. The landlord needs a Satisfactory EICR to demonstrate compliance with the Regulations, not just evidence that new work was done.
A third point of confusion is around who can sign each document. Both the EIC and the EICR must be signed by a competent person. For EICRs specifically, the inspector must be competent to inspect and test the type of installation being assessed. From 1 October 2026, the EAS 2026 requires employed persons doing periodic inspection work to hold the relevant Level 3 award. Even if you are a sole trader and not directly captured by the employed-person requirement, your scheme will likely align its own requirements with EAS 2026 from that date, so it is worth checking your scheme's guidance well before October.
The Legal Framework: Which Laws Apply to Each Certificate
Part P of the Building Regulations 2010 is the primary legal basis for the EIC in domestic settings. It defines notifiable electrical work and sets the framework for competent person schemes to self-certify. Failure to notify notifiable work is a breach of Part P and carries the risk of enforcement action from the local authority. The practical consequence for a homeowner is that the electrical work cannot be evidenced on a property sale, which can delay or derail conveyancing. For a sole trader, it can mean your professional scheme suspending or removing your registration.
The Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020 are the primary legal basis for the EICR in rented residential properties. Regulation 3 sets the five-year maximum inspection interval. Regulation 4 sets the landlord's duty to supply copies of the report. Regulation 5 sets the duty to carry out remedial work within 28 days of receiving a report with a C1 or C2 observation, or sooner if the report specifies. The £30,000 civil penalty for breach is imposed by the local housing authority. These Regulations apply in England; Scotland, Wales, and Northern Ireland have separate and distinct requirements.
Underpinning both documents is BS 7671:2018 Amendment 4:2026, the IET Wiring Regulations. This is the technical standard against which installations are designed, built, and assessed. It is not a statute but it carries significant weight as the recognised standard of practice. Both the EIC and the EICR require you to confirm that the installation complies with or was assessed against BS 7671. From 15 October 2026, Amendment 4 is the only version in force. The new chapters added by A4, including Section 826 for stationary secondary batteries and BESS, the Power over Ethernet chapter, and the revised Section 710 for medical locations, are relevant to EIC work on those installation types from that date.
- •EIC legal basis: Part P of the Building Regulations 2010
- •EICR legal basis: Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, Regulation 3
- •Technical standard for both: BS 7671:2018 Amendment 4:2026 (mandatory from 15 October 2026)
- •EICR penalty for non-compliant landlord: up to £30,000 per breach under Regulation 4
- •Electricity at Work Regulations 1989, Regulation 4(2): underpins safe construction and maintenance of all electrical systems
Worked Scenario: A Landlord's Rental Property Refurbishment
Here is a realistic job that shows both documents in action. A landlord contacts you in March 2025 to rewire a three-bedroom terraced house in Birmingham that has not been touched since the 1980s. The property is empty between tenancies. You agree a price of £3,800 for a full rewire including a new consumer unit, all new circuits, smoke detectors on every floor, and a new earthing arrangement.
On completion you carry out your inspection and testing. The installation passes. You issue an Electrical Installation Certificate covering the full rewire, signed by yourself as designer, constructor, inspector, and tester. The certificate references BS 7671:2018 Amendment 4:2026 (or the then-current edition). Because this is a full rewire of a dwelling and includes a new consumer unit, it is notifiable under Part P of the Building Regulations 2010. Your NICEIC registration means you self-certify: you submit the notification through your scheme portal and NICEIC notifies Birmingham City Council on your behalf. The landlord receives a copy of the EIC, the schedule of inspections, and the schedule of test results.
The landlord asks you: 'Is this all I need before I rent it out?' The honest answer is: not quite. The new EIC confirms the installation was built correctly. To comply with Regulation 3 of the Electrical Safety Standards in the Private Rented Sector (England) Regulations 2020, the landlord needs an EICR showing the installation as satisfactory before a new tenancy begins. Because the installation is brand new, you carry out an EICR immediately after completing the rewire. The EICR shows no C1 or C2 observations, the overall outcome is Satisfactory, and you recommend the next inspection in five years, placing that at March 2030. The landlord now has both documents. The EIC is the completion record for the rewire. The EICR is the compliance document for the tenancy. The landlord supplies the EICR to the new tenant before they move in, as required by Regulation 4. Total cost of the EICR on top of the rewire: £120 for your time carrying out the periodic inspection procedures on a newly completed installation. Some electricians include this in their rewire quote; others charge it separately. Either way, make it clear in writing what each document is and what legal purpose it serves.
Record Keeping, Storage, and What Happens If You Lose a Certificate
Both the EIC and the EICR need to be retained, and not just by the client. As the issuing electrician, you should keep a copy of every certificate you sign. The Limitation Act 1980 is not directly relevant to technical inspection work, but practically speaking, a complaint or claim about electrical work can surface years later, and having your own copy of the certificate and test results is your first line of defence. Your competent person scheme may have its own minimum retention requirements, typically six years, which aligns with general commercial practice.
If a certificate is lost, the situation differs depending on which document it is. For an EIC covering notifiable work, your competent person scheme holds a record of the notification. You may be able to obtain a copy of the notification reference from the scheme, but a duplicate EIC is not automatically available because the original was a live document signed at the time. For an EICR, losing the report is more straightforwardly resolved: a new inspection is carried out and a new EICR issued reflecting the current condition of the installation. That is the correct approach, not attempting to recreate a previous report from memory.
Digital storage is increasingly standard. Most competent person scheme portals allow you to download and store PDFs of your notifications and certificates. Some electricians use dedicated document management tools or trade software. The important thing is that you can produce the certificate quickly when a landlord's letting agent, a solicitor's conveyancing query, or a local authority inspection request lands in your inbox. Having to scramble for paperwork weeks after a job is completed is avoidable with a simple consistent filing habit.
What Changes Under BS 7671 Amendment 4:2026 Affect EIC and EICR Work?
BS 7671:2018 Amendment 4:2026 was published on 15 April 2026. There is a six-month transition period, so from 15 October 2026 it is the only version in force. For most EIC and EICR work on standard domestic and commercial installations, the practical impact is modest. The schedule of inspections and schedule of test results formats are updated, and you should use the A4 versions from that date. Your competent person scheme will issue updated certificate forms aligned to A4, and you should not be using pre-A4 forms after October 2026.
The areas where A4 makes a material difference are the new chapters. Section 826 covers stationary secondary battery systems and battery energy storage systems (BESS). If you are issuing an EIC for a job that includes a BESS installation alongside solar PV, you now have a dedicated chapter in the regulations to work to. Section 826 was not present in previous editions, and this is a significant change for the growing number of electricians doing domestic battery storage work. The Power over Ethernet chapter and the ICT functional earthing and equipotential bonding requirements are relevant to commercial and mixed-use premises where structured data cabling and electrical installations interact.
For EICR work, A4 means that when you are assessing an existing installation that includes BESS, PoE infrastructure, or ICT earthing arrangements, you are now working to a more detailed and specific framework. Observations and codes need to reflect the A4 requirements from 15 October 2026 onwards. If you are carrying out EICRs on medical locations such as private clinics, dental surgeries, or care home treatment rooms, the revised Section 710 in A4 is a substantial update and you should read it carefully before carrying out inspection work in those environments.
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