Best Invoicing App for Self-Employed Tradespeople in the UK (2026)
The best invoicing app for self-employed tradespeople in the UK in 2026 is one that handles the full workflow: quote, approval, invoice, and payment tracking – all from your phone, without unnecessary complexity. This guide reviews the options for sole trader tradespeople specifically.
What Self-Employed Tradespeople Need From an Invoicing App
For a self-employed tradesperson, the invoicing workflow is:
- Quote the job (professional PDF sent to customer)
- Customer approves the quote
- Complete the job
- Convert the quote to an invoice instantly
- Send the invoice and track payment
An invoicing app that handles steps 1-5 in a single tool eliminates duplicated data entry, reduces errors, and means every invoice is automatically traceable back to the original approved quote. This matters both for professional presentation and for handling any payment disputes.
CoreQuote: Built for Trades Invoice and Quote
CoreQuote is a quoting and invoice app built specifically for trades businesses. Currently free for 6 months during the beta.
Why CoreQuote works for self-employed tradespeople: – Quote Invoice in one tap – no re-entering job details – Professional branded documents with your company logo – Customer approval tracking – you know when a quote is accepted – Customer database – all your contacts in one place – Mobile-first – works on site, not just at a desk – From £3.40/month after beta – lower than any comparable trade-specific tool
Comparing the Main Options
| App | Price | Trade-specific | Mobile | Quote to Invoice |
|---|---|---|---|---|
| CoreQuote | Free 6mo, then £3.40/mo | Yes – built for trades | Yes – mobile first | Yes |
| Tradify | £35+/user/mo | Yes | Yes | Yes |
| ServiceM8 | £29+/mo | Yes | Yes (iOS) | Yes |
| Billdu | Free tier, paid from £5/mo | No – generic | Yes | Basic |
| Invoice Ninja | Free tier, paid from £10/mo | No – generic | Limited | Basic |
| QuickBooks | £14+/mo | No – accounting focus | Yes | Yes |
| FreeAgent | £19/mo | No – accounting focus | Limited | Basic |
For self-employed tradespeople: CoreQuote offers the best combination of trades-specific design, mobile-first usability, and low cost. Tradify and ServiceM8 are better for multi-person businesses with complex scheduling needs. QuickBooks and FreeAgent are accounting tools, not primary quoting tools.
The Hidden Cost of Generic Tools
The temptation for self-employed tradespeople is to use a generic invoicing tool like Billdu or Invoice Ninja because they have free tiers. The real cost isn’t the subscription – it’s time. A generic tool wasn’t built for the way trades businesses quote (labour + materials, site-specific items, trade certification details). You spend time adapting the tool to your workflow instead of quoting efficiently.
A trades-specific tool like CoreQuote is built around how you actually work.
Frequently Asked Questions
What is the best free invoicing app for a self-employed tradesperson? CoreQuote is free for 6 months with no credit card required – and it’s built specifically for tradespeople rather than adapted from a generic tool. See kwowta.com for what’s included. After the beta, it’s from £3.40/month.
Do I need accounting software as well as invoicing software? Probably yes, for tax purposes. QuickBooks, FreeAgent, or even a simple spreadsheet handles the accounting. Your invoicing app (CoreQuote) handles the customer-facing document workflow. Many tradespeople use both – the invoicing app for quotes and invoices, accounting software for tax returns.
Is CoreQuote available on Android and iOS? Yes. CoreQuote works on Android and iOS. See kwowta.com for download details.
CoreQuote is the invoicing and quoting app built for self-employed tradespeople. Try free for 6 months at kwowta.com.
Want to quote faster? CoreQuote is a free quoting app built specifically for UK trades businesses — create professional quotes in seconds, get digital sign-off from customers, and convert to invoices with one tap. Try it free today.
