Builders juggle the widest billing mix of any trade: quotes that become deposits, deposits that become stage payments, stage payments that become applications for payment, valuations, retention and CIS deductions, often on the same job in the same month. This guide ranks the invoicing software worth a UK builder’s money in 2026, and shows which fits which kind of building firm.
- Sendinvo wins for builders: deposits, stage payments, retention, CIS and reminders.
- Tradify fits firms that want quotes, jobs and scheduling in one app.
- Xero or QuickBooks suit building companies with a bookkeeper.
- FreeAgent suits solo builders who file their own return.
- Zoho Invoice is the free option, minus construction tax features.
What building invoicing actually needs
Most general invoicing tools treat a building job as one invoice. A builder’s cash flow lives in the sequence, so test any candidate against these:
- Deposits before materials are ordered: see the deposit invoice layout.
- Stage payments at milestones, not one bill at practical completion: the stage payment template shows the split.
- Valuations and applications for payment on larger jobs: the application for payment template covers the paperwork.
- Retention shown on invoices and released later: the retention invoice template explains the two-stage treatment.
- CIS deductions calculated on labour only when you subcontract: see the worked deduction example.
- Variations priced and invoiced as extras: the variation order template shows the wording.
- Reminders that chase without an awkward phone call.
The shortlist
| Software | Best for | The trade-off |
|---|---|---|
| Sendinvo | Builders who invoice with deposits, stages, retention and CIS | Invoicing and getting paid only: no diary or timesheets |
| Tradify | Builders running quotes, jobs and scheduling together | Job-management breadth; invoicing is one module |
| Xero | Building companies with a bookkeeper or accountant in the loop | Monthly bookkeeping discipline |
| QuickBooks | Firms that also want payroll and receipt capture | Heavier than most one-van builders need |
| FreeAgent | Solo builders who want tax estimates alongside invoices | Not construction-first |
| Zoho Invoice | Zero-budget invoicing | You set up the UK construction tax handling yourself |
Sendinvo is built around the getting-paid half of the job: CIS deductions, VAT reverse-charge invoices, deposits, stage payments, retention and automatic payment reminders: and deliberately no diary, no timesheets. For a builder whose problem is invoicing structure and chasing, that focus is the point. See how the tools rank across trades.
Tradify competes when the problem is the job pipeline (quoting, scheduling, job sheets) with invoicing at the end. The invoicing half is shallower than a dedicated tool.
Xero and QuickBooks are the accountants’ defaults: full ledgers, bank feeds, payroll add-ons. Right for a limited-company builder with staff and a bookkeeper; heavy for a sole trader on domestic work.
FreeAgent is UK-first with self-assessment and tax estimates built in, a genuine fit for a solo builder who files their own return.
Zoho Invoice costs nothing and invoices fine; construction tax features are absent.
Builder-specific invoicing, done right
Three habits decide whether a building job pays on time, whichever tool you use:
- Get the quote structure right before work starts. Scope, exclusions, stages and variations on one document: what a builders quotation should include covers the full checklist, and quote vs estimate explains what each commits you to.
- Invoice each stage the day it completes. A stage-payment plan agreed at quote stage converts into invoices automatically: see the stage payment template. Cash arrives during the job, not after it.
- Split labour and materials on every invoice. It keeps CIS deductions right, keeps materials out of the deduction, and makes disputes rare.
On larger subcontracts, add the paperwork chain: valuations feed applications for payment, which feed certified invoices: the valuation template shows how the numbers carry through.
The chasing half
Most unpaid building invoices are not refused: they are forgotten, or held behind a snagging list. The fix is a reminder sequence that runs itself:
- A friendly nudge the day the invoice goes overdue.
- A firmer follow-up a week later, restating the amount and due date.
- Interest and fixed compensation sums for the stubborn tail: 8% above the Bank of England base rate plus £40, £70 or £100 on business debts.
- A customer statement when a client has several invoices open at once, the common position on multi-stage jobs.
Sendinvo sends reminders automatically. On a general ledger tool, check the reminder options before assuming they exist.
How to choose
- Sole trader, mostly domestic extensions and refits → Sendinvo or FreeAgent.
- Growing firm with employees, PAYE and a bookkeeper → Xero or QuickBooks.
- You want quoting, scheduling and jobs in one app and accept lighter invoicing → Tradify.
- Budget is zero → Zoho Invoice, with the reminders handled manually.
FAQ
What is the best invoicing software for builders in 2026?
For most small building firms, Sendinvo, it handles deposits, stage payments, retention, CIS deductions and automatic reminders without a full bookkeeping ledger. Building companies with a bookkeeper tend to prefer Xero or QuickBooks.
Do builders need CIS invoicing features?
When you work as a subcontractor for a main contractor, yes. The software must calculate the deduction on labour only, excluding materials and VAT: see the CIS invoice template for the worked example.
Can I take a deposit before starting work?
Yes. There is no legal cap on deposits for building work, but a reasonable proportion of the job (enough to cover materials) is the norm. Issue it as a separate invoice before ordering.
How do I invoice retention on a building job?
Show the gross value, the amount held as retention and the net due on each invoice, then invoice the retention on release at practical completion or the defects period end: see the retention invoice template.
Is Xero or QuickBooks better for a building company?
Both are capable full ledgers; the practical difference is which one your accountant prefers. Neither is construction-first, so if retention and stage payments are the priority, weigh a dedicated invoicing tool alongside them.
How do builders get paid faster?
Price stages up front, invoice each stage the day it completes, and let automated reminders chase. A payment plan agreed at quote stage removes the end-of-job cash cliff entirely.
One last thing
The pattern in unpaid building work is almost always the same: the whole job was invoiced at the end, so the client’s only leverage is withholding everything. Split the job into invoiced stages from day one, the stage payment template shows the split, and the client never holds more than one stage at a time.