AI tax software
German tax software for your GmbH — the returns, prepared with our own AI
Running a German company means a year-round stream of tax filings: monthly VAT advance returns, annual corporate income and trade tax returns, payroll-tax registrations and the E-Bilanz. Our free Steuer module turns the same bookkeeping into reviewable returns and highlights where the tax base departs from the commercial result. Direct submission is offered only where the server approves the procedure and stored facts; otherwise you complete and file through the ELSTER portal or a tax adviser.
Last reviewed: 2026-07-06
One tax module, every recurring German filing
The Steuer module sits next to your HGB financial statements and reuses the same numbers.
- VAT advance return (Umsatzsteuer-Voranmeldung) and the annual VAT return, reconciled against the monthly filings.
- EC Sales List (Zusammenfassende Meldung, § 18a UStG) for intra-EU supplies and services.
- Corporate income tax (Körperschaftsteuer) with the reconciliation from the HGB result to taxable income, plus the KSt 1 return with Anlage GK and loss carry-forwards.
- Trade tax (Gewerbesteuer) with add-backs, deductions, the base amount and your municipal multiplier, including apportionment across several municipalities.
- Wage-tax registration (Lohnsteuer-Anmeldung, § 41a EStG), advance-payment schedules, the tax calendar and a running tax account.
Where our AI does the work
Reads your figures
The AI reads your trial balance and locked HGB statements and maps each account to the right line of every tax form — no re-keying numbers into a second system.
Flags HGB-vs-tax differences
A built-in safeguard checks a catalogue of items where the commercial balance sheet and the tax balance sheet diverge, so a difference is documented rather than silently carried over.
Drafts the returns
Corporate income tax, trade tax and the VAT returns are pre-filled from your data; you review, adjust and approve rather than start from a blank form.
Checks the assessment
When the tax office issues its assessment (Bescheid), the software reconciles it against your figures to the cent and tracks the appeal deadline (§ 355 AO).
Built for founders, not just tax advisers
Most German tax software assumes a trained Steuerberater is driving. This module is written so that a founder or in-house finance person can prepare a reviewable working draft, understand every add-back and deduction, and still hand a clean file to an adviser for a final review if they wish.
Because the tax figures are derived from the same HGB statements the platform already produced, there is a single source of truth. Change a booking, and the VAT return, the corporate income tax reconciliation and the trade tax base all move together — the AI keeps the mapping consistent instead of forcing a manual re-entry.
Direct ELSTER filing
Supported returns are calculated, reviewed and filed directly through the official ELSTER interface after your approval.
The module maps figures into the official form sections and runs internal consistency and official technical checks. Review the output, resolve open fields and file directly through ELSTER; the transfer ticket is stored as evidence. Deadlines — the tenth-of-the-month VAT rhythm, the permanent extension (Dauerfristverlängerung) and annual return dates — are surfaced in the tax calendar.
The module is currently in Beta and priced at 100 euros per month per workspace, covering every entity you manage in that workspace.
How it fits the wider platform
- The E-Bilanz (§ 5b EStG) is generated from the same annual accounts and the Anlage GK of the corporate tax return draws on it.
- The trade-tax and corporate-tax loss carry-forwards keep a continuous history per tax type (§ 10d EStG / § 10a GewStG).
- Dividend distributions and the capital-gains-tax registration (Kapitalertragsteuer, § 43 EStG) are handled where they apply.
- Personengesellschaften and sole traders are transparent for income tax, so the corporate-tax cards only appear for the legal forms that owe them.
Frequently asked questions
Which taxes does the module cover?
VAT (advance and annual returns, EC Sales List), corporate income tax with its reconciliation and KSt 1 return, trade tax including multi-municipality apportionment, wage-tax registration, capital-gains tax on distributions, plus the E-Bilanz. It also tracks advance payments, deadlines and tax-office assessments.
Do I still need a Steuerberater?
Not necessarily for preparation. The software lets a founder prepare and review recurring returns, but direct filing is case-gated and complex matters still warrant an adviser. The documented HGB-to-tax reconciliation makes that hand-off straightforward.
How does the AI avoid overstating or understating tax?
The AI maps your figures to the forms and a separate safeguard flags the roughly thirty catalogued points where the tax balance sheet departs from the commercial one. Differences are surfaced for a decision rather than taken over unnoticed; the software never invents numbers.
Is the return actually transmitted to the tax office?
For assessment periods 2023–2025, direct filing covers ordinary corporate-income-tax cases for GmbH, UG, AG, SE, KGaA and eG, and ordinary trade-tax cases for those forms plus commercial sole proprietorships, e.K., OHG, KG, GmbH & Co. KG and commercial GbR. PartG and freelance or other noncommercial activities do not owe trade tax. Every applicable factual question must be completed, and the server-side scope check plus ERiC validation must pass; an eG's corporate-income-tax return also requires complete member data and Anlage GR. Explicit high-specialty regimes remain excluded and use the ELSTER portal or a tax adviser. The E-Bilanz is directly submitted after validation and approval.
What does it cost and is it live?
The Steuer module, preparation and technical checks are free. A EUR 50 charge applies only to a server-approved direct corporate- or trade-tax submission; with a bookkeeping subscription that approved submission is included. Otherwise filing is completed through the ELSTER portal or a tax adviser.