Table of Contents
What makes an expense tax-deductible for a dealership
Expenses directly linked to the vehicle
Business structure and operating expenses
Staff and collaborator expenses
Marketing and customer acquisition expenses
Deductible VAT: when you can and cannot claim it according to the scheme
Particularities of Corporation Tax vs. Income Tax for dealerships
Expenses that seem tax-deductible but have limitations
How to document each transaction to avoid problems
Frequently Asked Questions
What makes an expense tax-deductible for a dealership
An expense is tax-deductible when it meets three conditions simultaneously: it is linked to the economic activity of the dealership (it is not a personal expense), it is supported by an invoice or valid document, and it is correctly recorded in the business accounts.
The criterion of connection to the activity is the one that generates the most doubts. A mobile phone can be a business expense if it is used for the business, but if it is also used for personal use, an allocation criterion must be applied. A company vehicle has specific deduction limits. The key is to be able to justify, in the event of a potential audit, that each expense has a genuine and proportional business purpose.
For a used vehicle dealership, deductible expenses are grouped into five categories: those directly linked to the vehicle, structure and operating costs, personnel costs, marketing and acquisition costs, and those related to input VAT.
Expenses directly linked to the vehicle
These are the expenses incurred between the purchase of the vehicle and its sale. They are all deductible under Corporation Tax or Income Tax as active business expenses, provided they are invoiced.
Repairs and maintenance prior to sale. Any workshop work carried out on a stock vehicle to bring it to retail standard: mechanics, bodywork, electrics, paint. These are deducted as an expense in the financial year in which they occur. The garage invoice is the mandatory supporting document.
Parts and spares fitted to the vehicle. If the repair includes parts that are permanently fitted to the vehicle, their cost is also deductible. The VAT on these invoices is also deductible, regardless of whether the vehicle is sold under the Margin Scheme or the standard VAT scheme.
Valeting and vehicle preparation. Costs for interior and exterior cleaning, polishing, upholstery treatment. Deductible with a service invoice.
MOT, type approval, and DVLA fees. The MOT fee, the cost of type approval for imported vehicles, and physical registration fees are deductible expenses linked to the vehicle.
Professional photography. If you hire a photographer for stock photos or use a car photography service, that cost is deductible as a marketing expense linked to the sale of each vehicle.
Vehicle transport and logistics. The cost of moving a vehicle from the point of purchase to the dealership (haulier, recovery truck, driving trade plates) is deductible as an acquisition cost. In the case of imports, transport costs to the EU border form part of the customs value, and costs from the border to the dealership are deductible as operating expenses.
HPI and CARFAX reports. The cost of vehicle history checks performed before each purchase is a deductible operating expense.
Vehicle warranties. If you purchase third-party warranty policies to cover the vehicles you sell, the premium is a deductible expense.
Now that you are clear on the expenses directly linked to the vehicle, you can calculate the margin on second-hand cars.
Business structure and operating expenses
These expenses are not linked to a specific vehicle but to the general running of the business. All of them are deductible provided they are relevant to the activity.
Premises or warehouse rent. The monthly rent of the site where you operate is 100% deductible. If part of the premises is used for residential or other purposes, only the proportional part linked to the business is deductible.
Business premises utilities. Electricity, water, gas, broadband, and phone for the premises are 100% deductible if the property is dedicated exclusively to the business. If there is mixed use, the proportional part is deducted.
Business insurance. Public liability insurance, premises contents insurance, vehicle stock insurance. All deductible with the premium invoice.
Software and management tools. The cost of any software used to run the business (DMS, CRM, accounting software, portal advertising tools) is deductible as an operating expense. For a retail dealership, this is one of the easiest expenses to justify.
Accounting and consultancy services. The fees of the advisor or accountant who handles the accounts, prepares tax returns, or manages transfer paperwork are 100% deductible.
Legal services. If you hire a solicitor to resolve a dispute or review contracts, those fees are deductible as business expenses.
Office supplies and consumables. Paper, ink, pens, stationery. Deductible with an invoice.
Professional training. Courses, seminars, or training courses related to the dealership's business are deductible as training expenses. Staff training costs are also deductible.
Staff and collaborator expenses
Salaries and National Insurance. If you have employees, gross salaries and the employer's National Insurance contributions are deductible. Payslips, employment contracts, and payroll tax returns are the back-up documentation.
Sales commissions. If you pay sales commissions to self-employed sales agents, these commissions are deductible. If the salesperson is registered as self-employed, they must issue an invoice with VAT.
Subsistence and travel expenses. Travel costs related to the business (travelling to view a car for purchase, going to an auction, visiting a supplier) are deductible with the corresponding receipts. There are limits on tax-exempt subsistence allowances, although any excess remains deductible for corporation tax.
Collaborator partner. If you have a family member working in the business who is registered as self-employed, their fees are deductible with the corresponding invoice.
Marketing and customer acquisition expenses
Advertising on car portals. Fees for AutoTrader, eBay Motors, Gumtree, and any other portal where you publish stock are 100% deductible.
We talk about this topic in more detail in the article on the best portals for selling second-hand cars.
Social media and Google advertising. Spend on Meta Ads, Google Ads, or TikTok Ads campaigns is deductible as advertising expenses.
Graphic design and content creation. If you hire someone to create content for social media, design marketing materials, or manage your digital footprint, those expenses are deductible.
Website. The cost of developing, maintaining, and hosting the dealership's website is deductible.
Signage, vinyls, and banners. Any physical advertising material for the premises or the vehicles.
Deductible VAT: when you can and cannot claim it according to the scheme
This is the most specific point for used car dealers and the one that causes the most confusion.
In standard VAT transactions (vehicles bought with deductible VAT that are resold with VAT): the input VAT paid on purchasing the vehicle is deductible. The VAT on all operating expenses is also deductible.
In Margin Scheme (REBU) transactions (vehicles bought from private individuals with no VAT): there is no input VAT paid on the purchase of the vehicle (the private individual does not charge it), so there is nothing to deduct upon acquisition. However, the VAT on all business operating expenses (repairs, insurance, software, accountants, advertising, rent) is indeed deductible. The Margin Scheme limits the deduction of VAT on the purchase of the vehicle, not the VAT on business expenses.
Partial exemption / Prorrata: if the dealership operates under both schemes (Margin Scheme and standard VAT), it may be in a partial exemption position for VAT recovery: it can only deduct the percentage of input VAT on general expenses that corresponds to standard scheme transactions. The partial exemption rule is more complex and should be reviewed with your tax advisor depending on the mix of your business operations.
To delve deeper into when each scheme applies and its VAT implications, you can consult the complete guide to the Margin Scheme for dealerships.
Particularities of Corporation Tax vs. Income Tax for dealerships
Dealerships may pay tax as a sole trader (Self Assessment, under Income Tax) or as a corporate entity (limited company, under Corporation Tax). The rules for deductibility are similar in both cases, but there are differences that matter.
In Income Tax (sole trader), the net profit of the business is calculated as income minus deductible expenses. The tax rate is progressive. National Insurance contributions are deductible. Utility expenses for premises that are also used as a home generally have a limit of 30% of the proportional part allocated to business activity.
In Corporation Tax (company), the standard rate applies according to business size. Remuneration to director-shareholders has specific deductibility rules that should be reviewed with your accountant. Corporation Tax allows carrying forward tax losses to offset future profits, which can be useful in loss-making years.
For a comprehensive view on dealership taxation in 2026, you can check out the article on the tax guide for dealerships.
Expenses that seem tax-deductible but have limitations
Dealership company cars. A company car that you use for personal travel is not the same as stock. For the VAT on a company car to be 100% deductible, it must be used exclusively for business purposes. If there is personal use, the VAT deduction is limited to 50%, and the deduction in CT or Income Tax depends on proving the percentage of business use.
Entertainment expenses. Business lunches, client gifts, and entertainment expenses have strict deduction limits depending on local tax laws, and any excess is not deductible.
Fines and penalties. Speeding tickets, tax penalties, and any administrative fines are not deductible. They are the consequence of an infraction, not a business expense.
Expenses not backed by an invoice. A cash payment without an invoice or receipt is not deductible, even if it is a genuine business expense. An invoice is an essential requirement for any tax deduction.
How to document each transaction to avoid problems
The golden rule is that every deductible expense must have an invoice in the name of the business (with the company's registration details or the sole trader's details), showing a clear description and a breakdown of VAT if applicable.
Till receipts are not always valid as simplified invoices for all amounts: for expenses above certain thresholds, a full invoice complete with the recipient's details is mandatory. For smaller amounts, a receipt may be sufficient if it includes the supplier's details and basic transaction information.
Keeping invoices in a digital format linked to your accounts (and to the vehicle file when the expense is specific to a particular car) greatly simplifies preparing quarterly and annual returns, and reduces response times for any tax authority audits. To see how to manage documentation for each transaction efficiently, you can consult the guide on mandatory documentation in every buying and selling transaction.
More than 750 dealerships already use Dealcar to manage their day-to-day operations
Dealcar allows you to link the expenses of each vehicle (repairs, MOT, logistics, preparation) directly to its record in stock, which simplifies calculating the actual margin per transaction and justifying every cost to the tax office. Expenses are always associated with the specific vehicle and sale, ready for any review.
If you want to see how it works, you can book a free demo at dealcar.io.
Frequently Asked Questions
Can I deduct 100% of the rent if I live and work in the same place?
No. If the premises where you carry out the activity is also your main home, you can only deduct the proportional part of the space used for the business. Tax offices are strict on this point and require the allocation of space to be genuine and verifiable.
Do car portal subscriptions get deducted immediately or must they be depreciated?
Monthly or annual subscription fees for portals (AutoTrader, eBay Motors, etc.) are expenses of the financial year and are deducted in the period they are paid. They do not need to be depreciated.
Can I deduct my mobile phone if I use it for the business?
If the phone is used exclusively for the business, yes, 100%. If it has mixed personal and business use, tax authorities generally accept a 50% deduction, though in an audit they may ask you to justify the percentage of business use.
Are commissions to finance platforms deductible?
Yes. The commissions paid to finance companies for deals closed through the dealership are income for the dealership, and any expenses associated with that activity (admin, paperwork) are deductible. The commission itself is recorded according to standard accounting and tax principles.
What happens if I have costs on a vehicle that didn't sell by the end of the year?
The costs of a vehicle that remains in stock at the end of the financial year form part of the value of that inventory. They are not deducted as an expense in the year they are incurred; instead, they increase the stock value and are recognised as a cost of sale in the year the car is sold.
Table of Contents
What makes an expense tax-deductible for a dealership
Expenses directly linked to the vehicle
Business structure and operating expenses
Staff and collaborator expenses
Marketing and customer acquisition expenses
Deductible VAT: when you can and cannot claim it according to the scheme
Particularities of Corporation Tax vs. Income Tax for dealerships
Expenses that seem tax-deductible but have limitations
How to document each transaction to avoid problems
Frequently Asked Questions
What makes an expense tax-deductible for a dealership
An expense is tax-deductible when it meets three conditions simultaneously: it is linked to the economic activity of the dealership (it is not a personal expense), it is supported by an invoice or valid document, and it is correctly recorded in the business accounts.
The criterion of connection to the activity is the one that generates the most doubts. A mobile phone can be a business expense if it is used for the business, but if it is also used for personal use, an allocation criterion must be applied. A company vehicle has specific deduction limits. The key is to be able to justify, in the event of a potential audit, that each expense has a genuine and proportional business purpose.
For a used vehicle dealership, deductible expenses are grouped into five categories: those directly linked to the vehicle, structure and operating costs, personnel costs, marketing and acquisition costs, and those related to input VAT.
Expenses directly linked to the vehicle
These are the expenses incurred between the purchase of the vehicle and its sale. They are all deductible under Corporation Tax or Income Tax as active business expenses, provided they are invoiced.
Repairs and maintenance prior to sale. Any workshop work carried out on a stock vehicle to bring it to retail standard: mechanics, bodywork, electrics, paint. These are deducted as an expense in the financial year in which they occur. The garage invoice is the mandatory supporting document.
Parts and spares fitted to the vehicle. If the repair includes parts that are permanently fitted to the vehicle, their cost is also deductible. The VAT on these invoices is also deductible, regardless of whether the vehicle is sold under the Margin Scheme or the standard VAT scheme.
Valeting and vehicle preparation. Costs for interior and exterior cleaning, polishing, upholstery treatment. Deductible with a service invoice.
MOT, type approval, and DVLA fees. The MOT fee, the cost of type approval for imported vehicles, and physical registration fees are deductible expenses linked to the vehicle.
Professional photography. If you hire a photographer for stock photos or use a car photography service, that cost is deductible as a marketing expense linked to the sale of each vehicle.
Vehicle transport and logistics. The cost of moving a vehicle from the point of purchase to the dealership (haulier, recovery truck, driving trade plates) is deductible as an acquisition cost. In the case of imports, transport costs to the EU border form part of the customs value, and costs from the border to the dealership are deductible as operating expenses.
HPI and CARFAX reports. The cost of vehicle history checks performed before each purchase is a deductible operating expense.
Vehicle warranties. If you purchase third-party warranty policies to cover the vehicles you sell, the premium is a deductible expense.
Now that you are clear on the expenses directly linked to the vehicle, you can calculate the margin on second-hand cars.
Business structure and operating expenses
These expenses are not linked to a specific vehicle but to the general running of the business. All of them are deductible provided they are relevant to the activity.
Premises or warehouse rent. The monthly rent of the site where you operate is 100% deductible. If part of the premises is used for residential or other purposes, only the proportional part linked to the business is deductible.
Business premises utilities. Electricity, water, gas, broadband, and phone for the premises are 100% deductible if the property is dedicated exclusively to the business. If there is mixed use, the proportional part is deducted.
Business insurance. Public liability insurance, premises contents insurance, vehicle stock insurance. All deductible with the premium invoice.
Software and management tools. The cost of any software used to run the business (DMS, CRM, accounting software, portal advertising tools) is deductible as an operating expense. For a retail dealership, this is one of the easiest expenses to justify.
Accounting and consultancy services. The fees of the advisor or accountant who handles the accounts, prepares tax returns, or manages transfer paperwork are 100% deductible.
Legal services. If you hire a solicitor to resolve a dispute or review contracts, those fees are deductible as business expenses.
Office supplies and consumables. Paper, ink, pens, stationery. Deductible with an invoice.
Professional training. Courses, seminars, or training courses related to the dealership's business are deductible as training expenses. Staff training costs are also deductible.
Staff and collaborator expenses
Salaries and National Insurance. If you have employees, gross salaries and the employer's National Insurance contributions are deductible. Payslips, employment contracts, and payroll tax returns are the back-up documentation.
Sales commissions. If you pay sales commissions to self-employed sales agents, these commissions are deductible. If the salesperson is registered as self-employed, they must issue an invoice with VAT.
Subsistence and travel expenses. Travel costs related to the business (travelling to view a car for purchase, going to an auction, visiting a supplier) are deductible with the corresponding receipts. There are limits on tax-exempt subsistence allowances, although any excess remains deductible for corporation tax.
Collaborator partner. If you have a family member working in the business who is registered as self-employed, their fees are deductible with the corresponding invoice.
Marketing and customer acquisition expenses
Advertising on car portals. Fees for AutoTrader, eBay Motors, Gumtree, and any other portal where you publish stock are 100% deductible.
We talk about this topic in more detail in the article on the best portals for selling second-hand cars.
Social media and Google advertising. Spend on Meta Ads, Google Ads, or TikTok Ads campaigns is deductible as advertising expenses.
Graphic design and content creation. If you hire someone to create content for social media, design marketing materials, or manage your digital footprint, those expenses are deductible.
Website. The cost of developing, maintaining, and hosting the dealership's website is deductible.
Signage, vinyls, and banners. Any physical advertising material for the premises or the vehicles.
Deductible VAT: when you can and cannot claim it according to the scheme
This is the most specific point for used car dealers and the one that causes the most confusion.
In standard VAT transactions (vehicles bought with deductible VAT that are resold with VAT): the input VAT paid on purchasing the vehicle is deductible. The VAT on all operating expenses is also deductible.
In Margin Scheme (REBU) transactions (vehicles bought from private individuals with no VAT): there is no input VAT paid on the purchase of the vehicle (the private individual does not charge it), so there is nothing to deduct upon acquisition. However, the VAT on all business operating expenses (repairs, insurance, software, accountants, advertising, rent) is indeed deductible. The Margin Scheme limits the deduction of VAT on the purchase of the vehicle, not the VAT on business expenses.
Partial exemption / Prorrata: if the dealership operates under both schemes (Margin Scheme and standard VAT), it may be in a partial exemption position for VAT recovery: it can only deduct the percentage of input VAT on general expenses that corresponds to standard scheme transactions. The partial exemption rule is more complex and should be reviewed with your tax advisor depending on the mix of your business operations.
To delve deeper into when each scheme applies and its VAT implications, you can consult the complete guide to the Margin Scheme for dealerships.
Particularities of Corporation Tax vs. Income Tax for dealerships
Dealerships may pay tax as a sole trader (Self Assessment, under Income Tax) or as a corporate entity (limited company, under Corporation Tax). The rules for deductibility are similar in both cases, but there are differences that matter.
In Income Tax (sole trader), the net profit of the business is calculated as income minus deductible expenses. The tax rate is progressive. National Insurance contributions are deductible. Utility expenses for premises that are also used as a home generally have a limit of 30% of the proportional part allocated to business activity.
In Corporation Tax (company), the standard rate applies according to business size. Remuneration to director-shareholders has specific deductibility rules that should be reviewed with your accountant. Corporation Tax allows carrying forward tax losses to offset future profits, which can be useful in loss-making years.
For a comprehensive view on dealership taxation in 2026, you can check out the article on the tax guide for dealerships.
Expenses that seem tax-deductible but have limitations
Dealership company cars. A company car that you use for personal travel is not the same as stock. For the VAT on a company car to be 100% deductible, it must be used exclusively for business purposes. If there is personal use, the VAT deduction is limited to 50%, and the deduction in CT or Income Tax depends on proving the percentage of business use.
Entertainment expenses. Business lunches, client gifts, and entertainment expenses have strict deduction limits depending on local tax laws, and any excess is not deductible.
Fines and penalties. Speeding tickets, tax penalties, and any administrative fines are not deductible. They are the consequence of an infraction, not a business expense.
Expenses not backed by an invoice. A cash payment without an invoice or receipt is not deductible, even if it is a genuine business expense. An invoice is an essential requirement for any tax deduction.
How to document each transaction to avoid problems
The golden rule is that every deductible expense must have an invoice in the name of the business (with the company's registration details or the sole trader's details), showing a clear description and a breakdown of VAT if applicable.
Till receipts are not always valid as simplified invoices for all amounts: for expenses above certain thresholds, a full invoice complete with the recipient's details is mandatory. For smaller amounts, a receipt may be sufficient if it includes the supplier's details and basic transaction information.
Keeping invoices in a digital format linked to your accounts (and to the vehicle file when the expense is specific to a particular car) greatly simplifies preparing quarterly and annual returns, and reduces response times for any tax authority audits. To see how to manage documentation for each transaction efficiently, you can consult the guide on mandatory documentation in every buying and selling transaction.
More than 750 dealerships already use Dealcar to manage their day-to-day operations
Dealcar allows you to link the expenses of each vehicle (repairs, MOT, logistics, preparation) directly to its record in stock, which simplifies calculating the actual margin per transaction and justifying every cost to the tax office. Expenses are always associated with the specific vehicle and sale, ready for any review.
If you want to see how it works, you can book a free demo at dealcar.io.
Frequently Asked Questions
Can I deduct 100% of the rent if I live and work in the same place?
No. If the premises where you carry out the activity is also your main home, you can only deduct the proportional part of the space used for the business. Tax offices are strict on this point and require the allocation of space to be genuine and verifiable.
Do car portal subscriptions get deducted immediately or must they be depreciated?
Monthly or annual subscription fees for portals (AutoTrader, eBay Motors, etc.) are expenses of the financial year and are deducted in the period they are paid. They do not need to be depreciated.
Can I deduct my mobile phone if I use it for the business?
If the phone is used exclusively for the business, yes, 100%. If it has mixed personal and business use, tax authorities generally accept a 50% deduction, though in an audit they may ask you to justify the percentage of business use.
Are commissions to finance platforms deductible?
Yes. The commissions paid to finance companies for deals closed through the dealership are income for the dealership, and any expenses associated with that activity (admin, paperwork) are deductible. The commission itself is recorded according to standard accounting and tax principles.
What happens if I have costs on a vehicle that didn't sell by the end of the year?
The costs of a vehicle that remains in stock at the end of the financial year form part of the value of that inventory. They are not deducted as an expense in the year they are incurred; instead, they increase the stock value and are recognised as a cost of sale in the year the car is sold.
