Germany's 2026 Tax Bill Hikes Interest Rates, Expands R&D Credit, and Forces Digital Tax Delivery

Germany's Cabinet Greenlights Sweeping Annual Tax Act 2026

Germany's federal cabinet today adopted the draft Annual Tax Act 2026 (JStG 2026), a wide-ranging package that touches corporate taxes, digital administration, anti-abuse rules and key incentives. The bill, which will now move through parliament, combines bureaucratic simplification with a tightening of tax compliance in several areas that directly affect both domestic and foreign businesses.

Among the headline changes is a near-doubling of the tax interest rate applied to late payments and refunds. From 2027, the rate will rise to 0.3% per month, equivalent to 3.6% per annum, up from the current 1.8% per year. The government says the increase reflects the sharp rise in general interest rates and consumer credit costs since the last review.

For companies that rely on foreign intellectual property, the bill raises the threshold for tax-free royalty payments abroad from €10,000 to €100,000 – a move explicitly designed to ease administrative burdens for publishers and other frequent licensees. At the same time, the rules for capital gains tax relief on dividends paid to large foreign investors are being tightened: non-resident shareholders holding at least 10% of a German company will no longer receive advance exemption certificates. Instead they must apply for a refund after the transaction, a change the finance ministry says will help detect abusive tax arrangements.

Further digital and structural measures include making electronic tax assessment delivery the default for all users of the ELSTER portal from 2027, enlarging the research & development tax credit limit to €25 million per company per project, introducing a new opt-in system for VAT groups, and extending the duty of online platforms to report provider income to third countries with which Germany has effective information-exchange agreements.

What the JStG 2026 Means for Business and Fiscal Policy

Tighter Scrutiny on Foreign Major Shareholders

The removal of advance exemption certificates for non-resident shareholders with a 10%+ stake marks a significant shift. Until now, these investors could obtain a certificate clearing the way for dividend payments without German withholding tax. Under the new approach, the tax will generally be withheld and the foreign entity must later apply for a refund. The move aligns with Germany’s Action Plan against Tax and Financial Crime and is intended to give tax authorities a post-transaction window to examine whether the arrangement is genuinely eligible for relief. For foreign holding structures and private equity funds, this means more cash tied up during the refund process and a greater compliance burden.

A Boon for IP-Intensive Industries

The tenfold increase in the de minimis threshold for foreign royalty payments, from €10,000 to €100,000, is a clear administrative simplification. Publishers, media houses and any German business that regularly licenses images, software or other content from abroad will see a significant reduction in the number of payments for which they must operate withholding tax at source. The obligation to file a tax return remains, preserving the possibility of later audit, but the cash-flow and paperwork relief for smaller, recurring license payments is substantial.

Platform Data Reporting Extends Beyond the EU

Germany already exchanges information on EU-resident sellers on digital platforms under the Platform Tax Transparency Act. The JStG 2026 expands this obligation to providers based in third countries, provided there is a bilateral or multilateral agreement permitting such exchange. This effectively brings non-EU marketplace operators into the net, creating new compliance duties for global platforms with German users and potentially surfacing previously unreported income of sellers in jurisdictions that cooperate with Germany.

Higher Tax Interest Reshapes Cash Management

The sharp increase in the tax interest rate – from 1.8% to 3.6% per annum – will have immediate cash-flow implications. Companies and individuals facing back-taxes will face steeper late-payment costs, while those expecting refunds will earn a higher rate on overpayments. In a higher-rate environment, the incentive to accelerate tax disputes or to front-load payments shifts, making treasury and litigation strategy more sensitive to the interest clock.

R&D Incentive Gets Materially Bigger

Lifting the period-agnostic ceiling for the research and development allowance to €25 million per company per project aligns Germany more closely with EU state-aid limits. The bill also introduces a stand-alone suspension rule to prevent the assessment period for the credit expiring before the certification process is complete. Together, these changes remove two longstanding practical obstacles and are likely to make the R&D credit a more central tool for large-scale innovation projects in Germany.

VAT Grouping Becomes Elective

The creation of an explicit opt-in for VAT groups (Organschaft) represents a modernisation welcomed by business. Rather than being automatically forced into an Organschaft based on purely material criteria, a controlling entity can now decide to apply the regime by declaration, and can add or remove subsidiaries prospectively. This gives corporate groups greater flexibility to react to structural changes and avoid unintended VAT consequences of integration.

Implications for Companies, Investors and Taxpayers

For Corporations and International Investors

• Foreign shareholders with 10%+ German investments should model the cash-flow impact of losing advance exemption certificates and prepare for post-transaction refund applications.
• IP-heavy businesses should reassess withholding tax procedures for royalty payments; many mid-sized license arrangements may now fall below the €100,000 threshold and can be processed without tax deduction.
• Platform operators with non-EU sellers serving German customers must build reporting capabilities to cover third-country providers where a qualifying international agreement exists.
• Companies with ongoing tax disputes or large estimated tax payments can expect a higher interest cost (3.6% p.a. from 2027); accelerating settlements or front-loading payments may become more attractive.
• Large R&D-intensive firms should revisit project planning to utilise the €25 million credit cap and ensure certification processes are initiated early to benefit from the new suspension rule.
• Groups with potential VAT Organschaft relationships can now actively decide whether to opt in; a structural review before the law enters force may identify opportunities to simplify VAT compliance.

For Individual Taxpayers

• Anyone lacking an active ELSTER account will continue to receive paper tax notices; those with an account will be switched to digital-only delivery. Taxpayers who prefer paper must proactively request it via ELSTER, otherwise notices will appear electronically.
• The higher tax interest rate makes it more valuable to file accurate returns early – refunds will accrue interest at 3.6% per year, while underpayments become costlier.