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AI bookkeeping tools for garages and mechanics in the UK

Garage bookkeeping mixes items with different VAT treatment on one invoice: MOT fees with no VAT, parts and labour at 20%, and sometimes used cars sold under a margin scheme. Parts suppliers' accounts, core charges and warranty claims add more lines. Software that handles mixed VAT per invoice line saves errors on every VAT return.

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.

MOTs and VAT

The maximum MOT fee for a car is £54.85, and no VAT is charged on the fee (GOV.UK). If you're VAT-registered, set the MOT as a no-VAT line and repairs at 20%, so one invoice can carry both. Xero and Sage support Making Tax Digital for VAT (checked 14 and 15 October 2026).

Used car sales

VAT margin schemes charge VAT on the difference between buying and selling price of eligible second-hand goods, and there are separate rules for second-hand vehicles (GOV.UK). The records needed are specific, so agree how to keep them with your accountant before you sell under a scheme.

Parts accounts and Making Tax Digital

Match monthly parts statements to job cards so you can see the margin on each repair. If your turnover was over £50,000 in 2024 to 2025, Making Tax Digital for Income Tax applies from 6 April 2026 (GOV.UK).

The options, with prices

Tool	Price and free plan	UK notes and source
Xero Cloud accounting for invoices, bank feeds, VAT and payroll, with AI-assisted features.	Ignite: £18 a month. Grow: £39. Comprehensive: £55. Ultimate: £70 (all excl. VAT). When checked, the first 6 months were 90% off. Payroll £1.50 per person. No free plan; a free trial and introductory discounts are offered.	UK pricing in pounds; Making Tax Digital compatible. Source, checked 15 October 2026
Sage Accounting UK accounting and payroll software with the Sage Copilot AI assistant included in every plan.	Start: £20 a month. Standard: £43 a month. All excl. VAT. Offer when checked: 90% off for 6 months. No free plan; introductory discount instead.	UK company, pounds, Making Tax Digital and CIS support. Source, checked 14 October 2026
QuickBooks Cloud accounting with invoicing, expenses and VAT, plus Intuit Intelligence AI features (some in beta).	Plans: Sole Trader Plus, Simple Start, Essentials, Plus and Advanced, each with a 30-day free trial. All include CIS calculation and submission; VAT submission isn't in Sole Trader Plus. Prices load dynamically on the UK pricing page, so check the current figure there. No free plan; 30-day free trial.	UK pricing in pounds. 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
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

What to check before you choose

Is it on HMRC's list of software that works with Making Tax Digital for Income Tax? Check HMRC's finder, not only the provider's page.
Does it read receipts from a photo and match them to your bank feed?
Can one invoice carry a no-VAT MOT line and 20% repair lines?
Introductory discounts: budget for the full price (FreeAgent, Xero and Sage all had offers when checked on 14 and 15 October 2026).
Can your accountant log in?

A prompt to start with

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

You're helping me with bookkeeping for my garage. Here are this month's invoices and parts statements: [paste]. Split income into MOT fees (no VAT), repairs and servicing (20%), and any used car sales; match parts to job cards; and flag invoices where the VAT looks wrong. Don't give tax advice.

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). Near the VAT threshold? Use the VAT threshold checker and read should I register for VAT? Already registered? See if the VAT Flat Rate Scheme calculator would save you money. MOT reminder, estimate and extra-work prompts: ChatGPT prompts for garages. Estimate your tax bill with the self-employed tax calculator, see what you owe in January and July with the payments on account calculator, or see whether a company would leave you better off with the sole trader vs limited company calculator. Over £50,000 turnover? Making Tax Digital for Income Tax has applied since 6 April 2026; check your date with the Making Tax Digital checker.

Questions

Do I charge VAT on an MOT?

No. GOV.UK says no VAT is charged on the MOT fee. Repairs and parts are standard-rated if you're VAT-registered.

Can I use the margin scheme for used cars?

Possibly. GOV.UK says second-hand vehicles have their own margin scheme rules; check them with your accountant.

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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