Best Invoicing Software for Contractors (2026): 10 Compared

Contractors rarely fall behind on work. They fall behind on paperwork: the quote that went out late, the invoice written on a Sunday night, the deposit nobody asked for. The right invoicing app gives those evenings back and gets invoices settled sooner, which matters more than any feature.

These are ten invoicing and job management tools in no particular order, sorted alphabetically, most from small, trade-focused companies. Each description comes from the company's own website, re-checked today. If winning more jobs is the next goal, my contractor's guide to marketing covers how to get noticed locally.

Contractor invoicing software at a glance

In the free plan column, Yes means the company's own site describes a free plan, Trial only means a time-limited trial without an ongoing free tier, and No means neither is stated.

Tool	Type	Good for	Free plan
Contractor Foreman	Construction management	General contractors	Trial only
Estimate Rocket	Estimating and invoicing	Proposals that win jobs	Trial only
Fergus	Job management for trades	Plumbers and electricians	Trial only
Invoice Ninja	Invoicing and payments	Simple invoicing on a free plan	Yes
Invoice Simple	Invoicing app	Invoices from your phone	Trial only
Joist	Estimates and invoices for contractors	Quote to invoice on site	Trial only
Markate	Field service CRM	Service businesses paying per feature	Trial only
ServiceM8	Job management app	Solo trades on a free plan	Yes
Tradify	Job management for trades	Small trade teams	Trial only
Workiz	Field service software	Field teams with dispatch	Trial only

Ten invoicing tools for contractors

Contractor Foreman

Best for: General contractors who want estimates, takeoffs, scheduling and invoicing in one construction app.

Estimate Rocket

Best for: Trade contractors who want polished estimates with e-signature that convert to jobs and invoices.

Fergus

Best for: Plumbers, electricians and HVAC businesses that want jobs, quotes and invoices tracked from first call to payment.

Invoice Ninja

Best for: Solo contractors who want simple invoicing, quotes and payments with a free plan to start.

Invoice Simple

Best for: Sole traders who want to create and send invoices from a phone in a couple of minutes.

Joist

Best for: Contractors who want estimates that turn into invoices on site, with deposits and accounting sync.

Markate

Best for: Small service businesses that want CRM, scheduling and invoicing and only want to add the features they use.

ServiceM8

Best for: Solo trades and small crews who want quotes, jobs and invoices on a phone, with a free plan for light use.

Tradify

Best for: Small trade businesses that want quoting, scheduling, timesheets and invoicing together, with a trial.

Workiz

Best for: Field service teams that want scheduling, dispatch, calls and invoicing in one system.

The UK VAT rule that changes construction invoices

Here's one that trips up UK subcontractors. GOV.UK's guidance says the VAT domestic reverse charge must be used for most supplies of building and construction services, and that it applies to standard and reduced rate services between businesses registered for VAT in the UK and reported within the Construction Industry Scheme. Under it, the customer accounts for the VAT instead of you charging it in the usual way.

If that applies to your work, your invoicing software needs to mark reverse charge invoices correctly and show the right wording. Check it supports the reverse charge before you switch, and ask your accountant to look at one test invoice. It's far easier than correcting a year of wrong invoices.

Quote, job, invoice: what a contractor app should connect

• Quotes that become jobs with one tap once the customer accepts.
• Deposits and progress payments for longer jobs.
• Photos and notes attached to each job as proof of work.
• Payment links and card readers so you can take payment before you leave.

Switching to contractor invoicing software in five steps

1. List the quote, job and invoice steps you follow today.
2. Add your standard items and labour rates as saved templates.
3. Connect your accounting software so invoices sync automatically.
4. Turn on automatic payment reminders.
5. Send your next real quote through the app and see how the customer responds.

Invoicing mistakes that slow payment

• Vague line items. Customers question what they don't understand.
• No due date. Always state when payment is due.
• Waiting until the end of the month. Invoice the day the job's finished.
• No easy way to pay. A payment link removes excuses.

Agree payment terms in writing before you start. A short line on every quote about deposits, stage payments and when the final invoice is due prevents most arguments, and good software adds it automatically so you don't forget on a busy day.

Keeping invoicing simple as you grow

When you take on staff, keep one person responsible for checking invoices go out each day. Small slips add up quickly when several jobs finish in one week. If you're new to the terms involved, this explainer on what invoicing means in basic accounting covers the basics in plain English.

Do you make invoicing or job management software for contractors? Tool makers can ask to be considered for a featured place on this list.

My plain advice on invoicing software for contractors

If you work alone and mainly need to quote and invoice, choose a simple app you'll use on your phone at the end of each job. If you run crews, pick a job management tool that connects scheduling, timesheets and invoicing, because that's where the hours disappear.

Whatever you choose, invoice on the day the job's done. The longer an invoice waits, the longer you'll wait for payment.

Frequently asked questions

What is the best invoicing app for a sole trader contractor?

A simple app that sends quotes and invoices from your phone and takes card payments suits most sole traders.

Can invoicing software take deposits?

Many contractor tools let you request a deposit when the quote is accepted and track progress payments.

Do UK subcontractors need reverse charge invoices?

GOV.UK says the VAT domestic reverse charge must be used for most building and construction services reported under CIS, so check whether it applies to you.

Is there free invoicing software for contractors?

Some tools describe a free plan for light use; most trade job management apps offer trials.

Should my invoicing app connect to my accounting software?

Yes, if you use one. Syncing saves rekeying and keeps your books up to date.

How do contractors get invoices settled faster?

Invoice on completion, add a payment link, ask for deposits on larger jobs and turn on automatic reminders.