The cash basis accounting (Einnahmenüberschussrechnung, or EÜR) is the simplest form of profit determination for many small and medium-sized car dealers. Instead of elaborate double-entry bookkeeping, it suffices to compare business income against business expenses. However, the automotive trade has its own special features – from margin taxation to goods purchases – that you should be aware of. In this guide, we explain step by step how cash basis accounting works, who is eligible to use it, and what car dealers need to pay particular attention to.
What Is Cash Basis Accounting (EÜR)?
Cash basis accounting – abbreviated as EÜR – is a simplified method of profit determination under § 4 para. 3 EStG (German Income Tax Act). The basic principle is straightforward:
Business Income − Business Expenses = Profit (or Loss)
Unlike double-entry bookkeeping, cash basis accounting relies exclusively on the receipt and disbursement of money (cash basis principle, § 11 EStG). What matters is not when an invoice is issued, but when the money actually arrives in or leaves the account.
Unlike balance sheet accounting, with cash basis accounting you do not need to conduct an inventory, nor prepare an opening or closing balance sheet. This saves time, costs, and effort – especially for smaller automotive businesses without their own accounting department.
The Cash Basis Principle Explained Simply
The cash basis principle means concretely: If you sell a vehicle in December but the customer does not pay until January, the revenue belongs to the new tax year. Conversely: If you pay a workshop invoice in advance, the expense is immediately deductible. This principle offers planning opportunities for tax management – a significant advantage for car dealers, especially at year-end.
Who May Use Cash Basis Accounting?
Not every entrepreneur is eligible to use simplified cash basis accounting. The legislator ties the right to certain prerequisites:
- Freelancers (§ 18 EStG) – may use cash basis accounting regardless of revenue or profit.
- Commercial traders – may use cash basis accounting as long as they do not exceed the following thresholds:
- Annual revenue under €800,000
- Annual profit under €80,000
- Not registered in the commercial register – Sole merchants who are voluntarily listed in the commercial register are required to use double-entry bookkeeping.
- Agricultural and forestry operators – with special rules under § 13a EStG.
For most small car dealers operating as sole proprietors or civil-law partnerships (GbR) without commercial register entry, cash basis accounting is therefore the standard method – as long as the business stays below the revenue and profit thresholds.
Cash Basis Accounting vs. Double-Entry Bookkeeping: The Comparison
Many car dealers wonder whether cash basis accounting is really sufficient or whether a balance sheet would be more professional. The following table shows the key differences:
| Criterion | Cash Basis Accounting (§ 4 para. 3 EStG) | Double-Entry Bookkeeping / Balance Sheet |
|---|---|---|
| Profit determination | Income minus expenses | Business asset comparison |
| Principle | Cash basis (receipt/disbursement) | Accrual basis |
| Effort | Low – no balance sheet required | High – balance sheet + P&L required |
| Inventory | Not required | Annually mandatory |
| Posting method | Simple recording | Debit and credit (chart of accounts) |
| Tax planning | Payment timing can be managed | Tied to fiscal year |
| Suitable for | Small businesses, freelancers | Corporations, larger businesses |
| Costs (tax advisor) | Lower | Significantly higher |
For a small to medium-sized car trade with manageable vehicle inventory, cash basis accounting is perfectly adequate in most cases. Only when revenue thresholds are reached or bank financing is needed can voluntary balance sheet accounting make sense – since banks often rate balance sheets more favorably than a simple cash basis statement.
Structure and Layout of Cash Basis Accounting
The Annex EÜR (cash basis accounting form), which you submit to the tax office as part of your tax return, follows a fixed structure. Since 2017, electronic submission via ELSTER has been mandatory for all businesses. The structure essentially comprises:
Business Income
- Revenue from vehicle sales (standard-taxed)
- Revenue from vehicle sales (margin taxation under § 25a UStG)
- Revenue from repairs and additional services
- VAT collected
- Other operating income (e.g. commissions, insurance brokerage)
- Private vehicle use (withdrawal / 1% rule)
Business Expenses
- Goods purchased (vehicles for resale)
- Personnel costs (wages, salaries, social contributions)
- Premises costs (rent, electricity, heating for showroom and office)
- Vehicle costs for company vehicles
- Advertising and listings (mobile.de, AutoScout24, etc.)
- Insurance (liability, dealer policy)
- Depreciation on fixed assets (workshop equipment, vehicle lifts)
- Input tax paid
- VAT remitted to the tax office
- Other operating expenses
Tip: In cash basis accounting, VAT is not treated as a pass-through item, but as separate income (VAT collected) and expenses (input tax paid + VAT remitted to the tax office). This is a common stumbling block – make sure to correctly capture all VAT items.
Profit Determination
At the end is the simple calculation: Total business income − Total business expenses = taxable profit. This amount is transferred to your income tax return and forms the basis for your income tax and, where applicable, trade tax.
The EÜR Form in the Tax Return
Since tax year 2017, all businesses – including small business owners – must submit the Annex EÜR in a standardized format electronically via ELSTER to the tax office. An informal profit calculation on paper is no longer accepted.
The Annex EÜR consists of several sections:
- Lines 1–10: General information about the business
- Lines 11–22: Business income
- Lines 23–65: Business expenses
- Lines 66–73: Profit determination
- Lines 74–86: Supplementary information (reserves, withdrawals, contributions)
For most car dealers using cash basis accounting, we recommend using accounting software that automatically generates the Annex EÜR from your postings and submits it via the ELSTER interface.
Special Rules for Car Dealers in Cash Basis Accounting
The automotive trade has some special features that deserve particular attention in cash basis accounting. Those who do not know these rules risk errors in the tax return or leave money on the table.
Goods Purchased: Immediately Deductible as Business Expense
In cash basis accounting, the rule is: Purchasing a vehicle for resale is an immediate business expense at the time of payment. It does not matter whether the vehicle is sold in the same year or is still on the lot. Unlike balance sheet accounting, where inventory is capitalized as current assets and only expensed upon sale, the purchase price in cash basis accounting immediately reduces profit.
Margin Taxation in Cash Basis Accounting
Many car dealers use margin taxation under § 25a UStG when purchasing from private individuals. In cash basis accounting, the following must be observed:
- The purchase price is recorded gross as a business expense (no input tax deduction).
- Upon sale, only the margin (selling price minus purchase price) is subject to VAT.
- In cash basis accounting, there must be a clear separation between standard-taxed sales and margin-taxed sales.
- VAT on the margin is recorded as a business expense when remitted to the tax office.
A clean separation of revenue accounts is essential here. Professional accounting solutions for the car trade automatically handle margin taxation correctly.
Vehicle Inventory as Current Assets
Although no inventory accounts are maintained in cash basis accounting, you should document your vehicle inventory internally. Reasons include:
- The tax office may request a statement of goods on hand at year-end.
- During a tax audit, you must be able to demonstrate which vehicles were bought and sold when.
- For your own management accounting (BWA), a current inventory overview is indispensable.
- High inventory levels, which reduce profit in cash basis accounting, can raise questions from your bank.
When Must Car Dealers Switch to Balance Sheet Accounting?
The switch from cash basis accounting to double-entry bookkeeping becomes mandatory when certain thresholds are exceeded. The tax office typically notifies you in writing:
| Criterion | Threshold | Legal Basis |
|---|---|---|
| Annual revenue | ≥ €800,000 | § 141 para. 1 No. 1 AO |
| Annual profit | ≥ €80,000 | § 141 para. 1 No. 4 AO |
| Entry in the commercial register | Voluntary or mandatory | § 238 HGB |
| Legal form | GmbH, UG, AG | § 242 HGB |
Important: The balance sheet obligation does not take effect immediately upon exceeding the threshold. The tax office must first instruct you to maintain books. The obligation then begins from the following fiscal year. Plan the transition well in advance – ideally with your tax advisor.
In the automotive trade, the €800,000 revenue threshold can be reached faster than expected: Just 30–40 used cars per year with an average price of €20,000–25,000 result in annual revenue in this range. Therefore, monitor your figures closely and plan for the potential switch early.
Common Errors in Cash Basis Accounting for Car Dealers
Even though cash basis accounting is simpler than balance sheet accounting, errors occur regularly in practice. The most common pitfalls in the automotive trade:
1. VAT Incorrectly Recorded
In cash basis accounting, VAT is not a pass-through item. VAT collected counts as income, input tax paid and VAT payments to the tax office count as expenses. Anyone who forgets this distorts their profit.
2. Margin Taxation and Standard Taxation Mixed Up
A classic error: Vehicles purchased under standard taxation (e.g. from another dealer with disclosed VAT) are mistakenly sold under margin taxation – or vice versa. Clean documentation per vehicle is mandatory here.
3. Private Vehicle Use Not Recorded
If you also use a business vehicle privately, you must record the private portion as business income (1% rule or driver’s log). If this is omitted, back payments are due during a tax audit.
4. No Proper Cash Book
Even in cash basis accounting, proper cash management is required for cash transactions. Especially in the car trade, where substantial cash amounts sometimes flow, a complete cash book is indispensable.
5. Depreciation Forgotten
Fixed assets like vehicle lifts, tools, or office equipment may not be fully expensed immediately (exception: low-value assets up to €800 net). Instead, they must be depreciated over their useful life – also in cash basis accounting.
6. Missing Receipts
No receipt, no posting – this principle applies to cash basis accounting as well. Ensure complete document filing for both purchases and sales. Digital document archiving per GoBD saves space and protects against loss.
Cash Basis Accounting Software vs. Excel: Which Is Better?
Many car dealers start with an Excel spreadsheet for their cash basis accounting. This works initially but quickly reaches its limits:
| Criterion | Excel / Spreadsheet | Cash Basis Accounting Software |
|---|---|---|
| Cost | Low (often free) | From approx. €10–30/month |
| ELSTER submission | Not integrated | Often integrated |
| VAT return | Manual | Automatic |
| Margin taxation | Error-prone | Automated |
| GoBD compliance | Not given | Generally yes |
| Receipt recognition | Not available | Often with OCR/scan |
| Error risk | High (formula errors, copy-paste) | Low (plausibility checks) |
| DATEV export | Manual and laborious | One-click export |
As soon as you trade more than a handful of vehicles per month, a professional software solution pays for itself. The time savings, error reduction, and GoBD compliance quickly offset the monthly costs.
DATEV and Tax Advisor: Optimizing Collaboration
Most tax advisors in Germany work with DATEV. For car dealers using cash basis accounting, a smooth DATEV interface is therefore particularly valuable:
- DATEV Export: Your posting data is exported in DATEV format and can be directly imported by the tax advisor.
- Fewer Inquiries: Clean, structured data significantly reduces the communication effort with your tax advisor.
- Cost Savings: The less your tax advisor has to rework, the lower their invoice.
- Faster Tax Return: The Annex EÜR can be prepared and submitted more quickly.
When choosing your accounting solution, make sure a native DATEV connection is available. Manual data transfer via Excel or PDF is error-prone and wastes unnecessary time.
How AutoPult Simplifies Cash Basis Accounting for Car Dealers
AutoPult was developed specifically for the automotive trade and supports car dealers who work with cash basis accounting in all relevant areas:
- Automatic Assignment: Every vehicle sale and purchase is automatically assigned to the correct cash basis accounting categories.
- Margin Taxation Integrated: Margin taxation under § 25a UStG is automatically calculated and correctly posted per vehicle.
- DATEV Interface: All postings can be exported to your tax advisor in DATEV format with a single click.
- Cash Book: An integrated, GoBD-compliant cash book for cash transactions.
- Vehicle Inventory Management: Complete documentation of all vehicle movements – from purchase to sale.
- VAT Return: Automatic calculation and ELSTER preparation of your VAT return.
- Digital Receipts: GoBD-compliant document archiving directly linked to each vehicle transaction.
This way, as a car dealer, you maintain full control over your cash basis accounting – without an accounting degree and without Excel chaos. Learn more about the accounting features on our page software for car dealership accounting.
Frequently Asked Questions About Cash Basis Accounting for Car Dealers
What is the difference between cash basis accounting and a balance sheet?
Cash basis accounting is a simplified profit determination method where only income and expenses are compared (cash basis principle). The balance sheet is based on a business asset comparison and requires double-entry bookkeeping with debit and credit, inventory, and annual financial statements. Cash basis accounting is significantly simpler and more affordable but offers less detail.
As a small car dealer, do I have to prepare cash basis accounting?
Yes, if you commercially trade vehicles, you must determine your profit. As a sole proprietor or civil-law partnership without commercial register entry, below €800,000 in revenue and €80,000 in profit, cash basis accounting is the simplest permissible method. However, you may voluntarily switch to balance sheet accounting.
How do I treat a vehicle purchase in cash basis accounting?
In cash basis accounting, the purchase price of a trade vehicle is fully recorded as a business expense at the time of payment. Unlike balance sheet accounting, there is no capitalization as current assets. The entire amount immediately reduces profit.
Can I use margin taxation with cash basis accounting?
Yes, margin taxation under § 25a UStG is independent of the profit determination method. You can therefore trade margin-taxed vehicles while using cash basis accounting. What matters is the clean separation of standard-taxed and margin-taxed transactions in your bookkeeping.
When must I switch to balance sheet accounting as a car dealer?
The balance sheet obligation applies when your annual revenue reaches €800,000 or your annual profit reaches €80,000. The tax office must instruct you to do so, and the obligation begins from the following fiscal year. A voluntary entry in the commercial register also triggers the balance sheet obligation.
Do I need a tax advisor for cash basis accounting?
A tax advisor is not legally required. However, given the combination of standard taxation, margin taxation, and the specifics of the automotive trade, we strongly recommend working with a tax advisor who is familiar with the car trade. Good accounting software with a DATEV interface reduces advisory effort and thus costs.
Conclusion: Cash Basis Accounting Is Ideal for Small Car Dealers
Cash basis accounting is the best choice for most small and medium-sized car dealers: It is simple, cost-effective, and even offers planning flexibility for tax management through the cash basis principle. What matters is knowing the specifics of the automotive trade – particularly the immediate deductibility of goods purchased, the correct treatment of margin taxation, and the proper recording of VAT.
With the right software and an experienced tax advisor at your side, cash basis accounting becomes straightforward. AutoPult offers you all the tools you need for proper and efficient cash basis accounting in the car trade – from automatic posting to the DATEV interface.
