What is a job card?

A job card is a document that records everything about a single piece of work, from when it was raised to when it was completed. It tells everyone involved who is doing the job, what needs doing, which parts and materials are used, and how long it took. In field service and maintenance, a job card (also called a work card or job sheet) is the single record that the office, the engineer, and the customer can all refer back to.

Without a complete job card, invoicing stalls, the audit trail goes missing, and nobody can reconstruct what happened if a dispute arises. Finance Managers wait on paperwork before they can bill, and Contract Managers lose the evidence they need to prove compliance. A clean job card keeps the work record accurate and the billing correct.

What information a job card should include

A job card only works if the right fields are captured consistently. Missing information at the point of work means chasing details later, which slows invoicing and creates compliance risk.

A complete job card should cover:

• Customer and site details: name, address, contact, and any access notes
• Asset information: make, model, serial number, and on-site location
• Job description: what was reported, the priority level, and any service level agreement (SLA) requirements
• Engineer assignment: who is allocated, along with their relevant skills or qualifications
• Parts and materials: items used, stock codes, and quantities
• Labour and time: arrival, departure, travel time, and hours worked
• Notes and observations: engineer comments, photos, and any follow-up actions
• Sign-off: customer signature, completion status, and date

Every field above connects directly to a downstream task: parts feed into invoicing, labour feeds into job costing, and the sign-off closes the audit trail. Captured as the work happens rather than reconstructed later, this data means margins are visible before the invoice is even raised.

Extra fields UK trades often add

The core fields suit any trade. Many UK contractors add a few more so the card matches how their work is bought, certified and invoiced:

• Company details: legal name, company number and VAT number
• Scheme registration: Gas Safe registration number for gas work, NICEIC or NAPIT details for electrical work, and F-Gas certification details for refrigerant work
• Order references: the customer's PO number, works order number or contract reference, so the invoice matches what the customer expects to see
• SLA targets: the response and fix times promised, next to the actual arrival and completion times
• Safety information: risk assessment or RAMS reference, permits, and any site hazards
• Compliance outcome: pass or fail results, defects found, and any certificate number issued

Gas and refrigerant jobs also carry their own certificates and records on top of the job card. Joblogic has dedicated features for gas certificates and F-Gas compliance. Joblogic also ships default job sheet templates, and you can set a different default for each customer or site, so the extra fields a client needs appear on their jobs every time. The job sheets guide on the support portal shows how.

If you are still using paper, a structured job sheet template can help you capture the right information consistently while you plan your move to digital.

Job card vs job sheet vs work order

Job card, job sheet and work card usually describe the same thing: the record of a visit, completed by the engineer. Which name a business uses usually comes down to trade habit or software. Joblogic calls its digital version a job sheet.

A work order, sometimes written as works order, is usually a different document. It is the instruction to carry out the work, raised by the customer or your office before anyone goes on site. The job card is what comes back after the visit.

Some businesses use a single document for both jobs, with the instruction at the top and the completed work recorded underneath. That works, as long as the record of what happened on site is captured in full.

Paper vs digital job cards

Paper and digital job cards cover the same fields, but they behave very differently in practice.

Where paper work cards fall short

Paper job cards introduce delays and gaps at every stage of the job lifecycle, and the problems compound as your team grows. Information written on site often gets typed a second time into a separate system once it reaches the office, doubling the admin for the same job. At low volumes, these problems are manageable. As your team grows, paper becomes a serious operational drag that compounds over time.

Why digital job cards are easier to manage

A digital job card, such as a Joblogic job sheet, updates in real time as the engineer works on site. This is where Service Delivery Managers get the live status visibility that paper can't offer, seeing job status, parts used, and notes without waiting for paperwork to come back.

Digital records link to the correct customer and site, and the assets worked on are assigned to the job, so each asset builds up its own job history. The engineer's actions on the app are time-stamped and every job is searchable, so the full history of any job is available whenever you need it. Businesses that move to Joblogic report 95% less paperwork.

What goes wrong without a complete job card

Most job card problems surface later, in the office, rather than on site. Three come up again and again.

Invoice disputes

When a customer queries a bill, you need to show what was done, how long it took and who signed it off. A missing signature, an unreadable part number or a vague description holds the invoice while someone chases the engineer. Joblogic captures the customer signature on the app, so the evidence exists before the invoice does.

Callbacks and repeat visits

Thin job descriptions and missing asset details send engineers out without the right information or parts. If the fault isn't fixed on the first visit, you pay for a second one. In Joblogic, engineers can see the customer details and job history from the app, so the notes and photos from the previous visit tell the next engineer what was found and what was done.

Job costing leakage

Labour and parts that never reach the job card never reach the invoice. Travel time goes unrecorded, a part leaves the van without a stock code, and the job looks more profitable than it was. When hours and parts are recorded on the card as they are used, job costing shows the cost, sales value and profit on each job.

How digital job cards work in practice

1. Log and assign the job

A job card is created when work is raised, whether from a customer call, a portal request, or a planned maintenance schedule. For ad-hoc jobs, this is the stage that decides whether the visit goes smoothly: vague descriptions, missing assets, or incorrect site details cause confusion on site and often lead to return visits. With job management software like Joblogic, the job is then assigned from a drag-and-drop scheduling board that shows each engineer's skills, location, and availability, so the right engineer reaches the right job first time.

2. Capture labour, parts, and notes on site

In Joblogic, the engineer opens the job card on their mobile app and records travel time, on-site hours, parts used, photos, and any notes. Required checklists and compliance forms are completed as part of the same workflow, and you can make a form mandatory against the visit or the asset so it can't be skipped. Nothing needs to be carried back to the office or re-entered by someone else.

3. Close the job and capture sign-off

When the work is done, the engineer marks the job complete and captures a customer signature on the app. The full record is immediately visible to the office, ready to review and invoice. Because every step happens in one connected system, there is less to chase between job completion and invoice creation, and nothing to re-key. Parr FM, for example, went from around 15 minutes to about one minute to prepare each invoice.

What to look for in a digital job sheet app

If you are comparing apps, the form itself matters less than how it behaves on site and what happens to the data afterwards. These are the checks worth making:

• Offline working: engineers can complete the job sheet with no signal, and it syncs when the connection returns
• Custom forms and checklists: the fields and compliance checks your trade needs, not a fixed template
• Photos, parts and time: recorded against the job on site, so nothing is re-keyed in the office
• Customer sign-off: a signature captured on the device
• Customer access: the customer can view the completed sheet without chasing you for a copy
• A link to invoicing: the completed job moves to an invoice without retyping

Joblogic's job sheet app covers each of these. It works offline, supports custom fields, branding and checklists, captures photos, parts usage and signatures, lets you share completed job sheets by email, download, print or a link through the customer portal, and can generate a draft invoice from the completed job's costs. Whichever app you shortlist, ask to see these checks run on a real job rather than a demo example.

Move from paper job cards to a digital workflow

Paper work cards served a purpose when field teams were small and job volumes were low. As teams and job volumes grow, the delays and gaps they create cost real money, in invoicing that stalls, compliance evidence that's hard to find, and job status nobody can see without a phone call.

Joblogic replaces paper job cards with a connected digital workflow covering the full job lifecycle, from logging and scheduling through to completion, compliance, and invoicing. Engineers capture everything on site, Service Delivery Managers see it in real time, Finance Managers get invoices out faster, and Contract Managers get an audit trail that holds up.

The right setup depends on your trade, your team size and the contracts you run, so start with the fields you can't afford to miss. If you want to see how digital job cards work in your operation, book a demo and speak to one of our specialists. They will walk you through the platform end to end, tailored to how your business runs.

Frequently asked questions

What should a job card include?

A job card should include the customer and site details, asset information, a job description with priority and SLA requirements, the engineer assigned, parts and materials used, labour and time, notes and photos, and the customer sign-off. UK trades often add their VAT number, scheme registration such as Gas Safe, NICEIC, NAPIT or F-Gas details, and order references.

What is the difference between a job card and a work order?

A work order is the instruction to carry out work. A job card is the record of what actually happened. In many businesses the two overlap, but a job card is specifically focused on capturing completed work for invoicing, compliance, and audit purposes.

Is a job card the same as a job sheet?

Yes. Job card, job sheet and work card are different names for the same record of a visit, completed by the engineer. Joblogic calls its digital version a job sheet.

Can job cards be used for planned maintenance as well as reactive jobs?

Yes. Job cards are used for both reactive call-outs and planned preventative maintenance (PPM) visits. In Joblogic, planned maintenance visits are generated automatically from the contract frequency, ready to be assigned to engineers in advance. This is particularly useful when you are running contracts across multiple sites, where visit schedules, asset lists, and compliance evidence all need to stay aligned without manual chasing. Forms completed on the Joblogic app are attached to the job automatically, and you can make them mandatory, so the compliance evidence for a PPM visit or an ad-hoc call-out sits in the same record.

What happens to a job card after a job is completed?

Once closed, the job card becomes a permanent record attached to the customer, site, and the assets worked on. You can use it to support invoicing queries, provide compliance evidence, and identify repeat faults on a specific piece of equipment. For VAT-registered businesses, GOV.UK says VAT records must be kept for at least six years. A job card that stays searchable alongside the invoice it supports makes any query from the customer or HMRC far easier to answer.

Do engineers need internet access to complete a digital job card?

No. Joblogic's mobile app works offline, so engineers can complete and update job cards without a connection and send the records to the back office when they have a signal. Many field service management (FSM) apps support offline working, but check how each one handles syncing before you choose.

How do you handle additional work identified during a job visit?

In Joblogic, the engineer can create an initial quote on site in the mobile app, and the office then prices and approves it. Once the customer approves, the quote's details and attachments copy across to the engineer's job sheet. This keeps the additional work linked to the correct site and assets without creating a separate paper trail.

Can customers see a completed job card?

Yes. In Joblogic, a completed job sheet can be shared with the customer by email, through a portal link, or as a download or print from the job's details page. The job sheets guide explains each option.

Where can I get a job card template?

Joblogic provides free job sheet templates you can download, and the system includes default job sheet templates that you can set for each customer or site.