On this page
- The five types of software trade businesses use
- Signs you are ready for job software, and signs a better paper routine will do
- Map one real job from first call to paid invoice before you book a demo
- Write your must-haves and nice-to-haves on one page
- Work out the whole cost over the contract, not the monthly price on the advert
- Run every demo around your own job, not the supplier's script
- Trial it with one person or one job type before you move the whole firm
- Check the link to your accounting software before you sign
- Move your data in, and make sure you can get it out again
- Keep the team using it after the first fortnight
- Fix the routine first if software is not the bottleneck
Job management software can take a lot of admin off a trade business: enquiries logged in one place, quotes that chase themselves, job sheets and photos that reach the office the same day, and invoices that go out before you have left the driveway. It can also cost far more than the advert suggests and leave your customer history stuck in a system you no longer want. This free guide is for UK plumbers, heating engineers, electricians, builders, roofers, joiners and property maintenance firms, usually owner-run with a partner or one person in the office. It shows you how to test any system against your own jobs, work out what it will cost over the whole contract, and make sure you can get your data out if you leave.
The five types of software trade businesses use
If you have been searching for job management software for tradesmen in the UK, you will have noticed that the results mix very different products. Many small firms end up with two or three of the types below, connected together. Knowing which type solves which problem stops you paying for a big system when a smaller one would do.
Job management and field service apps run the work from enquiry to invoice
These apps hold your customers and sites, book jobs into a diary, send job details to the engineer's phone, collect notes, photos, signatures and time on site, and turn the finished job into an invoice. Tradify, ServiceM8, Commusoft and Powered Now are examples of products sold to UK trades in this category. This is the type most people mean by job management software, and it is usually the most expensive part of the setup because it is priced per user.
Quoting and invoicing apps speed up paperwork without running your diary
A sole trader or a two-person firm often does not need scheduling at all. A quoting and invoicing app lets you build a quote from saved prices, send it from your phone, track whether it was opened, then convert it to an invoice with a payment link. If your main problem is quotes going out late and never being followed up, start with our guide to quoting and follow-up before paying for a full job system.
Accounting software keeps your tax records, and Making Tax Digital now requires it for many traders
Accounting software (Xero, QuickBooks, FreeAgent and Sage are examples) is where your income, costs, VAT and bank feeds live. For a lot of trade businesses this is no longer optional:

- VAT-registered businesses must use compatible software to keep VAT records and file VAT Returns under Making Tax Digital for VAT. HMRC says you need either a compatible software package or bridging software that connects something like a spreadsheet to HMRC.
- Sole traders and landlords registered for Self Assessment must use Making Tax Digital for Income Tax once their qualifying income from self-employment and property passes the threshold. HMRC's dates are below.
| If your qualifying income was over | In the tax year | You need to use MTD for Income Tax from |
|---|---|---|
| £50,000 | 2024 to 2025 | 6 April 2026 |
| £30,000 | 2025 to 2026 | 6 April 2027 |
| £20,000 | 2026 to 2027 | 6 April 2028 |
Under MTD for Income Tax, HMRC's guidance on choosing software says your software has to create and store digital records of your self-employment and property income and expenses, send a quarterly update to HMRC every three months (a summary, not a tax return), and submit your tax return by 31 January after the tax year. For standard update periods the deadlines are 7 August, 7 November, 7 February and 7 May. HMRC also says that if you are VAT registered you should check whether your VAT software will cover MTD for Income Tax as well. Partnerships are due to follow later, on a timeline HMRC has not yet set. HMRC's check if and when you need to use MTD for Income Tax page has a tool that works out your start date and any exemption.
Certificates software produces gas and electrical paperwork that customers and agents can find later
Gas engineers and electricians produce records that someone else will rely on months or years later. HSE says a landlord's gas safety record can be stored electronically, as long as it can be printed when needed, is secure from loss and interference, and identifies the Gas Safe registered engineer who did the check. Landlords must keep those records for at least two years. In England, landlords must have the electrics in rented homes checked at least every five years, and give tenants proof. If letting agents are a big part of your work, how quickly you can produce and resend a certificate matters. Some job management apps include certificate forms; others need a separate certificates product. Check with your registration body which certificate formats it accepts before you pay for either.
Phone systems decide whether the enquiry ever reaches your job system
No job software helps with the boiler breakdown call you missed at 7am while you were under someone else's sink. Call handling, voicemail that turns into a callback list, and call forwarding to whoever is free all sit in front of the job system. GOV.UK says most UK customers are expected to have moved from old analogue landlines to digital lines by the end of January 2027, so if your office number is still on a traditional line, talk to your provider before you plan anything else around it. Our guides to stopping missed calls and comparing call-handling options cover this part.
Signs you are ready for job software, and signs a better paper routine will do
Software makes a working routine faster. It rarely fixes a routine the team does not follow.
You are probably ready if:
- More than one person books, attends or invoices jobs, and they keep asking each other where things are.
- Job details are retyped two or three times: from the call to the diary, from the diary to the job sheet, from the job sheet to the invoice.
- Invoices go out days after the work because paperwork lives in the van until Friday.
- You cannot quickly answer "when did we last service this boiler, and what did we find?"
- Landlords, agents or commercial customers ask for photos, certificates or signed job sheets, and finding them takes too long.
A better paper or spreadsheet routine may be enough for now if:
- You work alone, do a handful of jobs a week and already invoice on the day.
- Your real problem is that no single person owns callbacks or quote follow-up. That is a habit, and an app will just give you a prettier list of things that were never chased.
- You are about to change how you work anyway (taking on a first employee, moving into new-build work) and do not yet know what the job will look like in six months.
Our free software checklist asks five questions about your team and setup, then gives you three priorities and matching questions to put to suppliers, so you know what to look for before you book a demo.
Map one real job from first call to paid invoice before you book a demo

Pick a recent job that went slightly wrong, because those show where the gaps are. Write down each of these in order, with who did it and where the information was kept:
- How the enquiry arrived (call, text, website form, agent's email) and where it was written down.
- Who called back, how long it took, and how the visit was booked.
- How the quote was priced, sent and followed up, and how long the customer took to say yes.
- How the job was scheduled, and what happened when it moved.
- What the engineer needed on site, what they recorded, and any variation agreed with the customer.
- How the job was marked complete and handed to whoever invoices.
- When the invoice went out, how it was paid, and how often it was chased.
Mark every point where something was retyped, lost, or waited on one person. Those marks are your shopping list.
Illustrative example: an electrician quotes a consumer unit upgrade. On the day, the customer asks for an extra circuit for a garden office. The variation is agreed verbally, written on the back of the job sheet, and forgotten when the office invoices from the original quote. The fix the firm needs is a way to record and price variations on site so they reach the invoice. That is one specific feature to test in every demo, and it matters more to this firm than a dashboard. Our guide to job records and handovers goes into what a good completed-job record contains.
Write your must-haves and nice-to-haves on one page
Turn the gaps from your job map into a short list, split in two. A must-have is something without which you would not buy. A nice-to-have is something you would like but would not pay extra for.
| Example must-haves | Example nice-to-haves |
|---|---|
| Works on the phones your engineers already carry, including with poor signal in a loft or basement | Customer-facing booking page |
| Variations can be added on site and carried to the invoice | Automatic review requests after the job |
| Invoices pass into your accounting software without retyping | Route planning across several vans |
| Quotes can include provisional sums and options (for example, a bathroom refit with a provisional sum for tiling) | Stock tracking across vans |
| Full export of customers, sites, jobs, invoices and attachments | Built-in marketing emails |
Add any trade-specific rules. Builders working as subcontractors under the Construction Industry Scheme have deductions taken from their payments by the contractor, so your invoicing needs to handle CIS deductions correctly. Most building and construction services between VAT-registered businesses reported under CIS also fall under the VAT domestic reverse charge, so your invoices need to handle VAT differently for that work. If either applies to you, put it on the must-have list and ask to see a real CIS or reverse charge invoice in the demo.
Work out the whole cost over the contract, not the monthly price on the advert
The headline price is usually the cheapest version for one user, billed annually, before VAT. Ask every supplier for a written quote that covers each of the following.
Per-user pricing: count everyone who needs a login
Many job apps charge per user per month. Check whether the office person, an apprentice and a part-time subcontractor each need a paid licence, whether there are cheaper "field only" licences, and whether there is a minimum number of users.
Add-ons: price the features on your must-have list
Certificates, planned maintenance, text message reminders, extra storage for photos and integrations are sometimes extra modules or only included in a higher tier. Check the tier that contains every must-have, not the entry tier.
Payment processing fees: these can cost more than the subscription
Payment links on invoices are convenient and can get you paid faster, but card and online payments usually carry a percentage fee plus a fixed amount per transaction. Ask what the rate is, who sets it, whether you can use your existing payment provider instead, and whether customers can still pay by bank transfer at no cost to you. See our getting paid guide for ways to get paid faster that do not depend on software.
Contract length and cancellation: know what you owe if it does not work out
Monthly rolling contracts cost more per month but let you leave. Annual contracts are cheaper but you may owe the rest of the year if you stop. Ask how much notice you must give, whether the contract renews automatically, and how much notice the supplier gives before a price rise. Rely on the written contract, not the demo.
Setup, migration and data export: the one-off costs people forget
Ask whether onboarding, importing your existing customers and training are charged, and whether exporting your data when you leave is free and in what format.
Illustrative example: what a "£30 a month" job app might cost over two years
Illustrative example. These figures are made up to show the method. They are not any supplier's prices. A heating firm with the owner, one engineer and an office partner compares the advertised price with a full costing over a 24-month contract. All figures exclude VAT.
| Cost item | How it is worked out | Total over 24 months |
|---|---|---|
| Three user licences | 3 users × £30 a month × 24 months | £2,160 |
| Certificates module | £15 a month × 24 months | £360 |
| Text message reminders | £10 a month × 24 months | £240 |
| Fourth user (apprentice) from month 7 | £30 a month × 18 months | £540 |
| Onboarding and customer import | One-off charge | £250 |
| Card payments through invoice links | £8,000 a month paid by card at 1.5% plus 20p on 40 payments = £128 a month × 24 months | £3,072 |
| Total | £6,622 |
The advert said £30 a month, which is £720 over two years. The full picture is more than nine times that, and almost half of it is payment fees. That does not make the system a bad buy: if it gets invoices out the same day and cuts the hours spent chasing, it may pay for itself. It does mean you should compare the full figure, not the headline, and check whether some of those card fees replace fees you already pay. In this example, if the firm had signed a 12-month contract and stopped after six months, it could still owe six months of licences and modules (£690) on top.
Run every demo around your own job, not the supplier's script
A sales demo shows the product running smoothly on a tidy example. Send the supplier your job map and must-have list before the call, and ask them to show your job live. Good tasks to ask for:

- Log a missed call from a landlord's agent and assign the callback to the office.
- Build a quote with a provisional sum and two options, send it, and show what happens when it is not answered for a week.
- Move a boiler service because the engineer was pulled onto a breakdown, and show what the customer is told.
- Complete the job on a phone like your engineer's, with photos, a signature and a variation, then show it arriving in the office.
- Raise the invoice for an agent who pays on 30-day terms and needs a purchase order number on it.
- Export a customer's full history, including attachments, and open the file.
During the demo, keep three columns: shown working, only described, and unknown. Anything in "only described" is a claim, not a feature, until you have seen it. Ask for a follow-up in writing on the unknowns.
Trial it with one person or one job type before you move the whole firm
Many suppliers offer a free trial. Use it on real work, but small enough that it can be undone. That might be one engineer for four weeks, or every boiler service but nothing else. Before you start, decide what success looks like in terms you can count: for example, every trial job invoiced within 24 hours of completion, or no job sheets left in the van at the end of the week.

Keep the old way running for everything outside the trial. Note admin time, problems and how support responded. Before real customer details go into a trial, check the supplier's data protection terms (see below). At the end, look at your notes, not your impression of how slick the app felt.
Check the link to your accounting software before you sign
Many job and quoting apps say they "integrate" with accounting packages. That word covers a lot. Ask exactly what passes across and in which direction: customers, invoices, credit notes, payments, VAT codes, CIS deductions, and supplier bills for materials. Ask which system is the master copy for customer details, and what happens when someone edits an invoice after it has synced.
Test it with awkward cases during the trial: an invoice with a deposit already paid, a part payment, a credit note for a cancelled job, and an invoice at the reduced VAT rate if you do work that qualifies. Then check the accounting software shows the right figures.
For VAT-registered businesses this is more than a convenience. HMRC's VAT Notice 700/22 says that once data is in the software that makes up your VAT records, any further transfer between programs must be by a digital link, and gives copying information over by hand as an example of what is not acceptable. If your plan is to type invoice totals from a job app into your accounts every month, ask your accountant whether that setup follows the rules.
Move your data in, and make sure you can get it out again
Your customer list, site addresses, appliance details, service history and certificates are some of the most valuable things your business owns. The software is where they live, not who they belong to.
Clean your data before you import it
Name one person to own the move. Remove duplicate customers, decide how much old job history you need, and keep a full copy of the old system or spreadsheet that you can still open. Import a test batch first and check that addresses, notes, attachments and reference numbers came through intact before you move everything.
Ask how a full export works before you sign
Ask which records can be exported, in what format (CSV files can be opened in any spreadsheet), whether photos and PDF certificates come out too, whether it costs anything, and how long you can still log in after cancelling. You will need those records after you leave. GOV.UK says self-employed people must keep records for at least five years after the 31 January submission deadline for the tax year, and limited companies must generally keep records for six years from the end of the financial year they relate to.

Know the UK GDPR basics that apply to job software
When a software company stores your customers' details on your behalf, it is normally acting as your processor and you are the controller. The ICO says a contract with a processor must cover certain terms, including that at the end of the contract the processor deletes or returns all the personal data, at your choice. Look for this in the supplier's data processing terms.
Your customers also have rights. The ICO explains that the right to data portability lets individuals get personal data they gave you in a structured, commonly used, machine-readable format, where you process it by automated means on the basis of consent or a contract. Requests normally need a response within one month. Make sure your system can produce one customer's records cleanly. The ICO notes this guidance is being reviewed following the Data (Use and Access) Act, so check the current version.
Keep the team using it after the first fortnight
When new software fails in a small firm, it is often not the features. Half the team carries on with paper, and the office ends up keeping two systems.
- The owner uses it first. If you still text job details to engineers, they will keep reading texts.
- Set a date when the old way stops. After that date, paper job sheets are not accepted for invoicing.
- Keep the on-site forms short. Every extra mandatory field is another reason for an engineer to fill it in later from memory, or not at all.
- Fix annoyances quickly. A weekly ten-minute check-in for the first month catches the small things that put people off.
- Review at renewal. Before the contract renews, check which features and licences are in use and drop the rest.
Fix the routine first if software is not the bottleneck
If your job map showed that most of the chasing comes from one gap, you may get further by fixing that gap first, with or without new software:
- Missed calls and callbacks with no owner: stop losing enquiries to missed calls.
- Quotes sent and never followed up: quote faster and follow up without nagging.
- Jobs coming back with missing photos, notes or variations: get complete job records from site to office.
- Invoices going out late and money chased for weeks: get paid faster and chase less.
- Not sure what to look for in software: use the free software checklist.
Use the free software checklist, then start with the calls guide
Sources checked for this guide
Making Tax Digital, record-keeping and data protection points checked against official guidance. The job map, must-have list, demo tasks and cost example are our suggestions; the cost figures are illustrative and are not any supplier's prices.
- GOV.UK: Find software that's compatible with Making Tax Digital for VAT
- GOV.UK: Choose the right software for Making Tax Digital for Income Tax
- GOV.UK: Send quarterly updates for Making Tax Digital for Income Tax
- GOV.UK: Find out if and when you need to use Making Tax Digital for Income Tax
- HSE: Gas safety check records
- GOV.UK: Electrical safety standards in the private and social rented sectors
- GOV.UK: UK transition from analogue to digital landlines
- GOV.UK: What is the Construction Industry Scheme
- HMRC: VAT domestic reverse charge for building and construction services
- HMRC: VAT Notice 700/22, Making Tax Digital for VAT
- GOV.UK: How long to keep your records (self-employed)
- GOV.UK: Company and accounting records
- ICO: What needs to be included in a controller-processor contract
- ICO: Right to data portability


