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Cairos for car repair workshops

The invoicing software for car repair workshops

The workshop is one of the few businesses where a quote up front is compulsory by law and the invoice has to be itemised. On top of that come the insurers, parts from different suppliers and a customer who wants to know what it is going to cost before leaving the car.

A signed quote up frontParts and labour itemisedVeriFactu included
erp.cairos.es
General
Dashboard
Invoices
Quotes
Contacts
Expenses
Products
Accounting
18.940 €
Invoiced this month
6.220 €
Outstanding from insurers
€42/h
Workshop hourly rate
11
Open orders
OR-0412Timing gear + belt · 4 h486,20 €In the workshop
P-0198Clutch quote1.104,00 €Accepted
F-2026/0233Bodywork · insurance company2.310,00 €Overdue
F-2026/0232Service + ITV182,00 €Paid
What changes

What is particular about invoicing in car repair workshops

The regulations for vehicle repair workshops impose obligations no other trade has, and most of the sector's consumer penalties come from there.

The quote up front is compulsory

Article 14 of Real Decreto 1457/1986 says it without hedging: work can only start once the customer has signed the quote or has waived it in a verifiable way. The quote is valid for a minimum of twelve working days, and if a hidden fault appears during the repair you have to tell them within 48 hours and wait for their express agreement.

The invoice is itemised

Article 15 requires a written, signed and stamped invoice, properly itemised: the work carried out, the parts or components used and the hours worked, with the amount for each item. A workshop invoice with a single «repair» line does not comply, and it is the first one a customer disputes.

The deposit receipt

Whenever the vehicle stays at the workshop — to be quoted for or to be repaired — you have to hand over a receipt with the workshop's, the customer's and the vehicle's details, what is going to be done and the expected delivery date. If there is a quote signed by both parties, that acts as the receipt. It is the document that avoids half the arguments about what was agreed.

The insurers pay when they feel like it

Part of the work is invoiced to companies with their own loss-adjusting circuit and their own timescales. Without keeping an eye on due dates, the workshop finances the insurer without noticing.

Day to day

How it is done today, and how it looks with Cairos

In the workshop the paperwork gets done in the gap between two cars, and it shows at the end of the quarter.

Day-to-day work in car repair workshops

Without Cairos

  • The quote is given verbally and then the customer argues about the amount.
  • The invoice comes out with one line and without itemising the hours.
  • Parts are ordered by phone and the delivery note turns up two weeks later.
  • Nobody knows how much each insurer owes or since when.
  • The margin per repair is not worked out: it is assumed.

With Cairos

  • The quote is issued, sent and accepted before work starts.
  • The invoice comes out of the quote, with labour and parts already separated.
  • Supplier orders are recorded and the delivery note is matched with its invoice.
  • Due dates by customer and by insurer are in plain sight.
  • Every repair order says what it cost and what it left.
Taxes

The workshop's VAT, item by item

In vehicle repairs almost everything goes at the standard rate. The exceptions that do exist are few, and worth knowing so as not to apply them where they do not belong.

ItemVATNote
Repair labour21 %The standard rate: there is no reduced rate for vehicle repairs.
Parts and spares21 %They are invoiced separately from the labour, even though they carry the same rate.
Tyres, oil and consumables21 %The same.
A repair invoiced to an insurer21 %What changes is who pays, not the rate. The invoice is made out to whoever the policy says.
Sale of a used vehicle bought from a private individualThe special regime for second-hand goodsVAT is not charged on the total but on the margin. It is a separate regime, with its own record book.
Handling the ITV, the roadworthiness test, on the customer's behalfSuplido, no VATOnly if you pay the fee in the customer's name, under their express instruction, and keep the receipt in their name. That VAT, if there is any, you do not deduct.

With the second-hand goods regime the opposite of what people believe happens: it applies by default to purchases made from private individuals, and what you have to do expressly is opt out of it, transaction by transaction and without telling Hacienda (art. 120.Cuatro of the VAT Act). It is only available when the vehicle was bought from a private individual, from a reseller who already applied the regime or in an exempt supply: if you bought it with an invoice and deductible VAT, you go to the general regime. It deserves a conversation with your accountancy firm before you start.

The modelos you end up filing

FormWhenWhy in your case
303QuarterlyThe VAT on the repairs less the VAT on the parts and the utilities.
390JanuaryThe annual summary, which has to reconcile with the four quarters.
111QuarterlyThe withholdings for the mechanics on the payroll.
115QuarterlyThe withholding on the rent for the unit, which there almost always is.
347FebruarySpare parts suppliers go over €3,005.06 easily.
130 or 200Quarterly, or JulyDepending on whether you are an autónomo or a company.

Try it with your workshop's invoices

Free plan with up to 30 documents a year, no card needed. And if it does not work for you, your data leaves with you.

Questions from car repair workshops

Yes: labour lines with hours and an hourly rate, parts lines and any others you need. The quote is sent to the customer, it is accepted and the invoice comes out of it, already itemised as the workshop regulations require.
Yes, unless the customer waives it in a verifiable way. Article 14.5 of Real Decreto 1457/1986 says so: the service can only be provided once the user has signed the quote or waived it. It is not a habit of the trade: it is the law, and skipping it is a consumer-protection infringement.
At least three months or 2,000 kilometres, whichever comes first; on commercial vehicles, fifteen days or 2,000 kilometres. And if a part fitted carries a longer guarantee, the longer one governs. The guarantee covers materials, labour and any costs it causes, including transport. It is in article 16 of Real Decreto 1457/1986.
Yes, if you issue invoices with a program. If the workshop is a company, from 1 January 2027; if you are an autónomo, from 1 July 2027. It is all on the VeriFactu page, with the dates kept up to date.
Yes: spare parts stock, minimums with alerts and supplier prices compared, from the Ámbar plan. Splitting the stock across several warehouses and transferring between them is already the Jade plan. For a workshop that only orders on demand, expenses and purchase orders are enough.
The special regime for second-hand goods has a mechanism of its own — you are taxed on the margin, not on the price — and its own record book. And it applies by itself, by default, when the car was bought from a private individual: opting out of it is a decision taken transaction by transaction. Cairos lets you run the activity and the data, but it is a regime worth setting up with your accountancy firm from the start.

Your workshop invoices differently. So does the program.

No minimum term · VeriFactu included · Native support in Spanish, Catalan, Galician, Basque and English

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