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AI invoicing tools for window cleaners in the UK

Window cleaners collect lots of small payments. Chasing cash and 'I'll pay next time' customers costs more time than the cleaning. Automatic invoices with a payment link, sent when each job is done, fix most of it.

Prices were re-checked on each provider's own page; the date is next to each one. Rules and figures from GOV.UK are linked where they're used.

Invoice on completion

Mark the job done on the round and let the app send the invoice and payment link.

Commercial accounts

Bill shops and offices monthly. Statutory interest on late business payments is 8% plus base rate (GOV.UK).

Keeping under the VAT threshold

If you're near £90,000 taxable turnover, track your rolling 12 months with the VAT threshold checker.

The options, with prices

Tool	Price and free plan	UK notes and source
ServiceM8 Job management for trade and service businesses: quotes, scheduling, job cards, invoices and customer texts, priced by jobs a month rather than per user.	Free: £0 a month for 1 user and 30 jobs a month. Starter: £25 a month (50 jobs). Growing: £59 (150 jobs). Premium: £119 (500 jobs). Premium Plus: £269 (1,500+ jobs). All paid plans have unlimited users. 14-day free trial. Free plan: 1 user, 30 jobs a month, SMS at 5p each.	UK pricing in pounds on the UK site. Source, checked 15 October 2026
Tide A business account app with invoicing, expense cards and accounting integrations.	Free plan with no plan fee. Smart: £12.49 a month. Pro: £27.49 a month. Max: £69.99 a month. Essential tools for getting started with no monthly plan fee (transaction limits vary by plan).	UK; Tide is authorised by the FCA as an e-money institution. Source, checked 15 October 2026
Zoho Books Accounting software with a free plan for very small businesses and paid UK plans.	Free: £0. Standard: £12 a month (£10 billed annually). Professional: £24 (£20). Premium: £30 (£25). Per organisation. Free plan for sole traders and micro businesses.	UK pricing in pounds. Source, checked 15 October 2026
Jobber Job management for service businesses: quotes, scheduling, invoicing and payments, with an AI Receptionist add-on.	Core: $49 a month ($29 billed annually). Connect: $139 ($99 annually). Grow: $199 ($149 annually), for one user; extra users $29 a month. Add-ons: AI Receptionist $29, Sales Pipeline $49, Marketing Suite $99 a month. 14-day free trial, no card required. No free plan; free trial without a card.	Confirm UK pricing and support. Source, checked 15 October 2026
FreeAgent UK accounting software for sole traders, partnerships and small companies.	Sole traders: £19 a month. Limited companies: £33 a month or £330 a year. All excl. VAT, with 50% off the first six months when checked. Free with a NatWest, RBS or Ulster Bank business account, or Mettle (conditions apply). Free for eligible NatWest, RBS, Ulster Bank and Mettle customers; otherwise a 30-day free trial.	UK company, pounds. Source, checked 15 October 2026

What to check before you choose

Invoices sent from the round.
Card or bank payment links.
Monthly statements for commercial customers.
Free plans for small rounds.

A prompt to start with

Paste this into ChatGPT or Claude, filling in the brackets:

Write a friendly text reminding [name] that £[amount] is outstanding for window cleans on [dates], with the payment link. Under 40 words, British English.

Free tools

Price a job with the quote and VAT calculator (20%, 5%, 0% and reverse charge), or work out your day rate (see how much to charge per hour). Comparing job management apps? Read Tradify vs Jobber. If a business customer pays late, the late payment interest calculator works out the statutory interest you can add, and how to chase a late payment sets out the steps. Over £50,000 turnover? Making Tax Digital for Income Tax has applied since 6 April 2026.

Questions

Free options?

ServiceM8's free plan covers 1 user and 30 jobs a month; Tide and Zoho Books have free plans. Checked 15 October 2026.

Recurring payments?

Jobber lists automatic payments for recurring work. Checked 15 October 2026.

Are these prices in pounds?

Not all. Where a provider only publishes US dollar prices we show dollars, so check the price in pounds at checkout.

Do you get paid if I sign up?

Some links may become affiliate links, and we'll label them when they do. It doesn't change what we list. See how we make money.

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