Automotive accounting challenges in Poland – 7 areas requiring close financial control

Automotive accounting challenges in Poland arise primarily from complex manufacturing processes, high transaction volumes, extensive supply chains and the fact that many automotive businesses operate within multinational corporate groups. Particular attention is required in production and inventory valuation, accounting for unused production capacity, transfer pricing, cross-border transactions and the consistency of data used in accounting, the Polish National e-Invoicing System (KSeF), JPK and group reporting.

From 2026, accounting data quality has become even more important. Mandatory KSeF requirements are being extended to successive groups of businesses, while electronic bookkeeping and reporting obligations under JPK for income taxes are being expanded to additional corporate income tax (CIT) taxpayers. For manufacturers, this means that errors cannot always be left until month-end closing. Data quality should be controlled at the point where transactions originate.

The automotive industry combines manufacturing, logistics and international business operations. A component manufacturer operating in Poland may source raw materials from several countries, run multi-stage production processes, maintain substantial inventories, sell products to related entities and report its financial results to an overseas headquarters. Accounting for automotive manufacturers must therefore address not only Polish accounting and tax obligations but also production-specific processes and group reporting requirements.

For CFOs and chief accountants, this means that automotive accounting challenges extend well beyond recording transactions correctly. What matters is the ability to trace information from the underlying business transaction and source system through to the general ledger, tax return and management report.

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What are the biggest accounting challenges for automotive companies in Poland?

The most significant challenges arise where operational data directly affects financial performance and tax reporting. For manufacturing companies, particular attention must be paid to manufacturing costs, inventory and work in progress, intercompany transactions, fixed assets and the integration of financial data with production systems.

Area	Main risk	What should be monitored
Manufacturing costs	Incorrect cost allocation	Allocation methods, direct costs and overheads
Inventory and work in progress	Incorrect asset valuation and financial results	Inventory turnover, write-downs, unfinished production
Production capacity	Allocating unused capacity costs to inventory	Normal production capacity levels
Transfer pricing	Financial results inconsistent with the company’s functions and risks	Profitability, intercompany settlements, documentation
Fixed assets	Classification and depreciation errors	Capital expenditure, improvements, assets being brought into use
KSeF and JPK	Inconsistent or incomplete data	Source systems, chart of accounts, document identifiers
Group reporting	Differences between local accounts and group reports	Account mapping, adjustments, closing deadlines

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1. Manufacturing costs: Where can accounting errors distort financial results?

For automotive manufacturers, accurate manufacturing cost calculations affect both the valuation of finished goods and work in progress and the company’s financial results. The more complex the production process, the more important it becomes to establish clear rules for assigning costs to individual products.

Under Article 28(3) of the Polish Accounting Act, manufacturing costs include costs directly attributable to a product and an appropriate share of indirect production costs. Direct costs may include materials consumed and conversion costs directly associated with manufacturing.

In practice, automotive component manufacturers often encounter difficulties with costs shared across several production lines, projects or products. These may include energy consumption, maintenance, machinery depreciation and factory overheads.

The key question for the finance department is therefore not simply “Has this cost been recorded?” but also “On what basis has it been allocated to the product?”

The chosen costing model should reflect the economic reality of the manufacturing process. If an allocation method no longer reflects actual resource consumption, it may distort the profitability of individual products.

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2. How does unused production capacity affect automotive accounting?

A decline in orders or a temporary reduction in production can have direct accounting consequences. Not all fixed manufacturing costs can automatically be included in inventory simply because they were incurred by the production facility.

The Polish Accounting Act links the allocation of fixed production overheads to normal production capacity utilisation. Costs resulting from unused production capacity and production losses are generally excluded from product manufacturing costs. This is particularly relevant in the automotive sector, where a production line may be designed for a specific output volume, while actual utilisation fluctuates with orders from original equipment manufacturers (OEMs).

Finance teams therefore need access not only to accounting records but also to reliable operational information on production capacity utilisation. At this point, manufacturing accounting depends directly on the quality of production data.

Where production cost allocation and the treatment of unused capacity require improvements to accounting policies or source data, the entire costing process and its integration with operational systems should be reviewed. getsix® supports manufacturing companies through its accounting services for the automotive industry in Poland, including accounting and reporting processes tailored to automotive operations.

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3. Why do inventory and work in progress require regular review?

Automotive manufacturers may hold raw materials, components, semi-finished goods, work in progress and finished products. With large numbers of stock-keeping units (SKUs), even relatively small errors in unit valuations can materially affect the total inventory value.

The challenge is not limited to determining initial inventory costs. Finance departments must also identify slow-moving, obsolete or surplus inventory, as well as items whose recoverable value has declined.

In the automotive industry, these risks may arise when a production programme ends, component specifications change or a customer reduces previously planned order volumes. Inventory analysis should therefore not be limited to an annual review for financial statement purposes. Where inventory values are significant, monitoring stock turnover, ageing and usability should form part of the regular period-end closing process.

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4. Why is transfer pricing documentation alone insufficient for automotive companies?

Multinational automotive groups frequently distribute business functions across several entities. One company may manufacture products, another may own technology or intangible assets, while others manage sales, procurement or financing. This creates numerous controlled transactions, ranging from component and finished goods sales to management services, financing arrangements and charges for the use of intangible assets.

Under the Polish Corporate Income Tax Act, the thresholds for local transfer pricing documentation are generally PLN 10 million for goods and financial transactions and PLN 2 million for services and other transactions, with separate rules applying to certain transactions.

For automotive businesses, however, consistency between documentation and the actual operating model is particularly important. If a Polish subsidiary is classified within the group as a limited-function, limited-risk manufacturer, its actual functions, decision-making responsibilities and profitability should be assessed together. Studies of disputes in the automotive sector highlight the importance of the actual allocation of functions and control over risks when evaluating related-party transactions.

For CFOs, this means monitoring transfer pricing throughout the financial year rather than waiting until documentation is prepared after year-end. Where a group pricing mechanism assumes a particular level of remuneration for the local entity, identifying deviations too late may require significant adjustments. In complex group structures, it may be appropriate to integrate accounting processes with tax advisory services in Poland and transfer pricing support.

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5. Why are source data quality, KSeF and JPK increasingly important?

The digitalisation of tax reporting means that data generated within business systems is increasingly submitted to the Polish tax administration in structured electronic formats.

In 2026, the mandatory National e-Invoicing System (KSeF) in Poland was introduced in stages: from 1 February 2026 for taxpayers whose gross sales exceeded PLN 200 million in 2024, and from 1 April 2026 for other taxpayers, subject to an exception available until the end of 2026 for taxpayers whose invoiced sales remain within a specified threshold. Receiving invoices through KSeF has been mandatory since 1 February 2026.

From 1 February 2026, structured invoices have used the FA(3) logical schema.

At the same time, the obligation to maintain and submit electronic accounting records for income tax purposes is being expanded. For CIT, following the introduction of these requirements for tax capital groups and taxpayers with revenues exceeding EUR 50 million, the obligation was extended to additional CIT taxpayers required to submit JPK_V7M for tax or financial years beginning after 31 December 2025.

In practice, this creates an environment in which an increasing proportion of tax information comes directly from company systems. For an automotive manufacturer using an enterprise resource planning (ERP) system alongside production, warehouse and group reporting applications, controlling data flows between these systems becomes essential. The challenge is no longer simply whether an individual JPK file or KSeF invoice is correct, but whether the entire data chain is consistent.

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6. Where do fixed assets and manufacturing investments create accounting risks?

Automotive manufacturing is capital-intensive. Production lines, machinery, industrial robots, tooling and manufacturing infrastructure can result in extensive fixed asset registers.

From an accounting perspective, particular attention should be paid to:

• determining when an investment is complete and ready for use;
• distinguishing repairs from fixed asset improvements;
• establishing the initial value of an asset;
• applying the correct accounting and tax depreciation;
• recording asset disposals and sales;
• reconciling fixed asset registers with the general ledger.

The importance of reliable fixed asset data is further increased by electronic reporting requirements. JPK reporting for income tax purposes includes the JPK_ST_KR structure, which covers fixed assets and intangible assets for taxpayers submitting JPK_KR_PD.

Manufacturers undertaking regular capital investments should therefore treat fixed asset accounting as a continuous process rather than an exercise performed only during the annual financial close.

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7. How can automotive companies reconcile Polish accounting records with international group reporting?

A Polish subsidiary belonging to a multinational group may maintain its statutory accounting records in accordance with local requirements while simultaneously preparing reporting packages under group accounting policies. In practice, this requires managing differences between local and group charts of accounts, reporting presentation rules, consolidation adjustments and closing schedules.

Timing is a particular challenge. Headquarters may expect a group reporting package within a few working days of month-end, even though some cost invoices or production data have not yet been finalised. A fast month-end close should therefore not depend on accelerating work only after the reporting period ends. It requires predefined procedures covering accruals, prepayments, inventory reconciliations, intercompany transactions and account balance controls.

Clear ownership of information is equally important: which data is prepared by the local finance department, which originates from operational systems and which is provided by headquarters.

getsix® supports international groups operating in Poland by providing accounting for the automotive industry in Poland, including statutory bookkeeping and the preparation of financial reports for overseas headquarters.

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How can automotive companies in Poland reduce accounting errors?

No single control can eliminate all the risks described above. The most effective approach is to design accounting processes around the flow of information rather than focusing exclusively on documents received by the finance department.

In practice, companies should regularly review:

• consistency between production, inventory and accounting data;
• manufacturing cost calculation policies and allocation methods;
• the level and structure of unused production capacity;
• inventory ageing, turnover and usability;
• profitability of related-party transactions;
• reconciliation of fixed asset registers with the general ledger;
• completeness of data required for KSeF and JPK reporting;
• mapping of the local chart of accounts to group reporting;
• the extent of automated and manual journal entries during month-end closing.

In a well-developed finance function, controls should be performed as close as possible to the point where data originates. An error involving a material, product, business partner or fixed asset is considerably easier to correct in the source system than after it has passed through the general ledger, tax reporting and consolidation package.

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Do automotive companies in Poland need specialised accounting services?

Not all automotive businesses operate in the same way, so industry classification alone does not determine the appropriate accounting service model. The main factors include production scale, the number of systems used, the volume of international and intercompany transactions, reporting requirements and the level of automation.

For foreign investors operating manufacturing facilities in Poland, an additional consideration is the ability to integrate Polish accounting and tax requirements with group processes and reporting deadlines.

getsix® provides accounting services for automotive manufacturers in Poland, with support tailored to the operational processes of businesses in the automotive sector. Where the challenge involves improving accounting procedures, reporting or financial data flows between a Polish subsidiary and overseas headquarters, it is worth reviewing not only how transactions are recorded but the entire process, from source data through to financial and tax reporting.

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