2026 Mid-Year Tax Review in Germany: Key Accounting & Compliance Priorities for H2

The first half of 2026 has flown by. With the German Federal Ministry of Finance (BMF) continuously issuing new supplementary notices and regulatory details, corporate accounting and tax compliance requirements are accelerating across the board.

To avoid falling into a passive position during year-end tax filings or future tax audits, we recommend focusing on the following four core areas during the second half of the year:

1. E-Invoicing: Countdown to the Issuance Obligation

• Current Status: Since 2025, companies have been required to have the capability to "receive" electronic invoices. The Ministry of Finance has now further clarified detailed standards for tamper-proof archiving (revisionssichere Archivierung) and formats such as ZUGFeRD.
• Next Milestone: Starting January 1, 2027, companies with an annual turnover exceeding €800,000 will be legally required to issue e-invoices (E-Rechnungspflicht).
• Action Items for H2: Process system upgrades take time. We recommend checking in advance whether your existing accounting software supports the export of XRechnung/ZUGFeRD formats, and streamlining internal approval and invoicing workflows.

2. VAT and Small Business Regulation (Section 19 UStG)

• The updated small business regulations and EU cross-border tax exemption options have officially taken full effect.
• Businesses involved in cross-border operations or providing services in other EU member states must re-examine their turnover thresholds and status classifications in the second half of the year to avoid unnecessary retroactive tax risks caused by misidentification.

3. Digital Tax Audits: Widespread Adoption of AI and IDEA Systems

• German tax authorities are now widely using IDEA systems for structured data analysis.
• Deficiencies such as missing process documentation (Verfahrensdokumentation), archiving that fails to meet GoBD standards, or untraceable bookkeeping workflows are easily exposed under system screening. Companies should improve compliant archiving and financial record-keeping as soon as possible.

4. September 10 Advance Tax Payments (Vorauszahlung) Optimization

• Key Date: September 10 is the deadline for the second-half corporate income tax, personal income tax, and trade tax advance payments.
• Cash Flow Optimization: If your company's actual earnings this year differ significantly from last year, you should submit an application to adjust your advance tax payments to the tax office (Finanzamt) before this deadline to effectively protect your cash flow.

💡 Conclusion: German tax law is rapidly moving toward full digitalization. Rather than scrambling in the final days of December, take advantage of the second half of the year to step-by-step align your systems and ensure process compliance.