How Are Accounting and Payroll Related to Tax Returns?
News – 20.07.2026
Tax returns are based on accounting and payroll data, and the quality of these underlying records directly determines the accuracy of the returns.
Tax Return Preparation Is Not a Standalone Process
An important principle is that a tax return is not simply “prepared” but rather “derived.” This means that tax returns do not originate from a separate source of data; they are the result of accounting and payroll processes. If the underlying data is incorrect, the tax return will also be incorrect, even if it is submitted correctly from a technical perspective.
The Role of Payroll in Tax Returns
Payroll is directly linked to several tax and social contribution filings. What data does payroll provide?
- Gross wages and salaries
- Withheld personal income tax
- Employee social security contributions
- Employer payroll taxes and contributions
- Tax allowances and benefits (e.g. family tax allowance)
This data forms the basis for, among others:
- The 08 tax return, which is used to report taxes, contributions, and vocational training contributions related to payments and benefits
- Monthly, quarterly, and annual statistical reports, social security paying-agent reports, and annual certificates
As a result, a payroll error automatically becomes a tax risk.
The Role of Accounting in Tax Returns
Accounting summarizes and organizes:
- Revenues
- Expenses
- Business transactions
- Payroll data
Accounting therefore provides the framework for taxation. Among other things, it serves as the basis for:
- VAT returns
- Corporate Income Tax (CIT) calculations and supporting schedules
- Local tax returns
Where Do Accounting and Payroll Meet?
These two functions are closely interconnected in several respects:
- Payroll expenses are recorded in the accounting system
- Social contributions are recognized as liabilities
- Payment data must reconcile with bank records
- The figures reported in tax returns must match the general ledger
Without proper reconciliation, discrepancies may arise between tax returns and accounting records. This can lead to tax underpayments or overpayments and may be identified during a tax authority audit, potentially resulting in penalties.
How Are Accounting and Payroll Related to Tax Returns?
Payroll in an International Environment – Special Challenges and Solutions
Typical Payroll Errors – and How Can They Be Avoided?
When Is Payroll Outsourcing Justified and Beneficial?
Why Is It Worth Hiring a Tax Advisor – and In Which Areas Do They Provide Real Added Value?
Facts and Myths About Tax Returns
| ❌ “The tax return has been filed, so everything must be fine.” | ✅ A tax return is only as accurate as the underlying data. |
| ❌ “Payroll and accounting are two completely separate systems.” | ✅ Payroll results form part of the accounting records. |
| ❌ “The tax authority will let us know if there is a problem.” | ✅ By the time the authority reacts, it often involves penalties. |
Why Is an Integrated Approach Important?
An integrated approach that combines accounting and payroll is particularly important for large and growing businesses, as well as in international or audited environments. Its advantages include:
- Fewer data discrepancies
- Faster reconciliation processes
- Lower regulatory and tax authority risk
- Greater financial transparency for management
Tax returns are therefore not isolated documents; they are the outcome of accounting and payroll processes. Accurate accounting and compliant payroll administration together ensure that tax returns provide a true and reliable picture of a company’s operations.
Q&A
They are based on data recorded and processed through accounting and payroll activities.
Most notably, the 08 tax return and the monthly reporting obligations related to employee compensation.
The tax authority may initiate an inquiry, self-audit procedures may become necessary, or a formal audit may follow, potentially resulting in late payment interest and penalties.
The company remains responsible, regardless of whether the returns are prepared by an external accountant or payroll provider.
Because only a coordinated approach can ensure accurate taxation and regulatory compliance.