Imminent insolvency is the legal status that sits before the actual crisis under German insolvency law: a company — typically a GmbH, the German limited-liability company — can still meet its payment obligations today, but it is already foreseeable that it will not be able to in the coming months. German law gives this its own name and its own test: § 18 InsO, a section of the Insolvenzordnung (InsO), Germany’s insolvency code. Crucially, and contrary to a common assumption, it does not carry a duty to file — unlike actual insolvency.
This guide explains what imminent insolvency under § 18 InsO actually means, how it differs from actual insolvency (§ 17 InsO) and over-indebtedness (§ 19 InsO), why it is a right rather than a duty, and how management can run the underlying forecast itself, instead of waiting for a lawyer to tell them where they stand. The groundwork this builds on is covered in the guide to cash flow forecasting.
What “imminent insolvency” means
Under § 18 (2) InsO, a debtor faces imminent insolvency when it will probably be unable to meet its existing payment obligations at the point they fall due. The forecast period applied is, in most cases, 24 months. The key difference from actual insolvency (§ 17 InsO) is timing: § 17 InsO describes a condition that has already arrived — payment obligations that are due now cannot be met. § 18 InsO is a forward-looking test: will the company probably still be able to meet its existing payment obligations once they fall due?
That also separates imminent insolvency from a temporary cash flow shortage: a shortage is a short, bridgeable squeeze confined to a single week. Imminent insolvency instead concerns the entire path of payment obligations over a forecast horizon of up to 24 months — the question is not whether next week works out, but whether the company stays able to pay at all over the foreseeable future.
How it differs from §17 and §19 InsO
German insolvency law recognises three grounds that can open insolvency proceedings, and they differ sharply in timing, consequence and who may act on them:
| Feature | Actual insolvency (§ 17) | Imminent insolvency (§ 18) | Over-indebtedness (§ 19) |
|---|---|---|---|
| Condition | Payment obligations already due can no longer be met | Payment obligations will probably not be met once due | Assets no longer cover liabilities |
| Forecast period | — (condition has already occurred) | In most cases, 24 months | Is continuation over the next 12 months predominantly likely? |
| Duty to file (§ 15a) | Yes — within 3 weeks of occurrence | No | Yes — within 6 weeks of occurrence |
| Who may file | Creditors or the debtor | Only the debtor itself (§ 18 (1) InsO) | Creditors or the debtor |
The duty to file, and the personal liability for management that attaches to it under §§ 15a and 15b InsO, applies only to actual insolvency and over-indebtedness — not to imminent insolvency. What those deadlines and liability risks look like in practice is covered in the guide to GmbH insolvency in Germany. Note that this is specifically a feature of German law: the tests, filing duties and directors’ liability that apply once a company is in genuine financial distress differ by jurisdiction, and what follows here describes the German framework only.
A right, not a duty
The practically important point: under § 18 (1) InsO, imminent insolvency only opens insolvency proceedings if the debtor itself applies for them. No one else — not a creditor, not a court acting on its own initiative — can rely on mere imminent insolvency to open proceedings. And nothing forces management to file: unlike §§ 17 and 19 InsO, § 18 InsO does not trigger a duty to file under § 15a InsO.
So why would management ever consider filing voluntarily? Because a voluntary filing on the ground of imminent insolvency opens early access to restructuring proceedings that only become available once an insolvency filing exists — at a point when the company is still capable of acting. Separately from any decision on a voluntary filing, § 1 of the StaRUG (Germany’s framework for preventive restructuring outside formal insolvency proceedings) already requires the management of limited-liability companies to continuously monitor developments that could threaten the company’s survival — and the StaRUG opens its own restructuring path outside insolvency proceedings where imminent insolvency is identified early enough.
LiquidityLens builds the 13-week and 13-month outlook with AI from your real bank transactions and open items — showing whether solvency holds up across the planning horizon.
See the Liquidity Control SprintRunning the 24-month forecast yourself
At its core, § 18 InsO asks a forecasting question: will the expected cash be enough to meet existing payment obligations as they fall due? That is not an abstract legal exercise — it is the same calculation any cash flow forecast runs, just over a longer horizon than the operational weekly view.
For the coming weeks, the 13-week cash flow forecast gives the most granular view: expected receipts and payments are set against the available balance, week by week. For the full 24-month horizon § 18 InsO uses as its forecast basis, you also need the medium-term layer — a 13-month plan in monthly slices with a defined minimum reserve threshold. If that view repeatedly falls below the reserve, it is a strong indicator that solvency is not secured over the foreseeable future — and that observation is the starting point for a legal assessment, not a substitute for one.
To get a first, one-off read on the coming weeks without setting up ongoing software, the free 13-week forecast generator is a fast way to start: two CSV exports of open receivables and payables plus the current bank balance are enough to see the low point of the next 13 weeks.
What to do now
Where imminent insolvency is coming into view, what matters most is documenting the position cleanly and exploring the options early — with less time pressure than in an acute crisis, but the same level of rigor:
- Create transparency. A reliable 13-week and 13-month forecast plus a current bank mirror across all accounts and lines are the basis for every decision that follows — and the evidence that management is meeting its duty to monitor the crisis continuously.
- Check the short-term levers. Firm receivables collection, renegotiated payment terms and the undrawn overdraft facility can ease the forecast period; the guide to cash flow shortage sets out the options.
- Talk to the bank early. Raising the position early, with solid numbers, is a different negotiation than reacting once the credit line is already exhausted.
- Get legal advice early. Whether a voluntary filing makes sense, which restructuring instruments apply, and how the position relates to the §§ 17 and 19 InsO thresholds is a case-by-case judgment for a law firm specialising in German insolvency and restructuring law.
A weekly grid for receipts and payments with an automatic low-point warning — the basis for your own forecast.
If the position hardens despite these steps and the forecast becomes a reality rather than a risk, the duty to file and the personal liability under §§ 15a and 15b InsO apply from that point on — see the guide to GmbH insolvency in Germany for what follows.
Frequently asked questions
The most important questions on imminent insolvency under German law are gathered at the end of this page.