A Delaware flip puts a new Delaware C-Corp on top of your German company. Founders swap their GmbH or UG shares for shares in the Delaware parent, so the German entity becomes a wholly owned subsidiary. It needs a notarised share transfer in Germany and can trigger German tax, so it is cheapest to do early, before the company is worth much.
- The flip is a share exchange: founders contribute their German shares to a new Delaware C-Corp and receive Delaware stock.
- Transferring GmbH or UG shares requires a German notarial deed (§15 GmbHG).
- The exchange can be a taxable event in Germany. The later you flip, the larger the potential gain.
- The German company usually keeps operating as a subsidiary: employees, contracts and IP may stay in Germany or move by agreement.
- Reg CF only accepts US-organised issuers, so a flip is also the route to US crowdfunding.
- Expect weeks, not days, and two sets of advisers: US corporate counsel and a German notary plus tax adviser.
Why do US investors ask for a Delaware C-Corp?
US venture funds are built around Delaware corporate law. Their documents, from the YC post-money SAFE to the NVCA model forms, assume a Delaware corporation. Their lawyers know its courts, its share classes and its stock option rules. Many fund agreements also limit how much they may invest in non-US companies. A German GmbH is a perfectly good company, but for a US fund it means unfamiliar documents, a notary for every share transfer and a second legal system to diligence.
The same constraint applies to US crowdfunding. Regulation Crowdfunding is only available to issuers organised under the law of a US state, so a German GmbH cannot raise on a US funding portal. Our Reg CF guide explains the rest of the regime.
What exactly happens in a flip?
A flip is a reorganisation, not a new company replacing the old one. The steps usually look like this:
- Form the Delaware C-Corp. Incorporation, bylaws, board, authorised shares and founder stock. This part is quick and inexpensive.
- Agree the exchange. Each German shareholder contributes their GmbH or UG shares to the Delaware company and receives Delaware shares in the same proportions.
- Notarise the transfer in Germany. Transferring shares in a German limited company requires a notarial deed. The notary then files an updated shareholder list with the commercial register.
- Set up the intercompany relationship. Decide where IP sits, sign an intercompany services or licence agreement, and set transfer pricing so each entity is taxed on what it actually does.
- Clean up founder terms. Founder vesting, IP assignment and option plans now live at the Delaware level. US founders and, where relevant, non-US founders consider the 83(b) election (see our 83(b) guide).
What does a flip cost?
Costs depend on how complex your company already is. A company with two founders, no investors and no employees is very different from one with angels, a convertible loan and staff. Use the ranges below as orientation and replace them with quotes.
| Item | What drives the cost | Orientation |
|---|---|---|
| Delaware incorporation and founder documents | Self-serve platform vs law firm | Low (hundreds to low thousands of USD) |
| US counsel for the flip documents | Number of shareholders, existing instruments | Low to mid five figures USD at many firms |
| German notary | Value of the shares and length of the deed (statutory fee scale) | Usually four figures EUR for an early company |
| German tax adviser | Valuation, tax-neutrality analysis, ruling if needed | Four to five figures EUR |
| Ongoing | Two sets of accounts, Delaware franchise tax, registered agent, US tax filings | Recurring, every year |
The ongoing cost is easy to underestimate. After a flip you run two companies in two countries: two bookkeeping systems, two annual filings and intercompany invoices. Budget for it before you choose the structure.
What is the German tax risk?
This is the question that decides timing. Contributing German shares to a foreign company can be treated as a sale of those shares at market value. If the shares are worth more than you paid for them, the difference can be taxed. Whether a tax-neutral route is available depends on the facts and on how the exchange is structured, and German rules treat EU and non-EU acquirers differently. A US parent is a non-EU company.
The practical rule founders hear from every adviser is simple: flip while the company is worth little. Before a priced round, before meaningful revenue and before investors put a valuation on paper, the potential gain is small. After a round at a high valuation, the same exchange can create a real tax bill with no cash to pay it.
What happens to the German company afterwards?
Usually it keeps operating. The employees, the office lease, the bank account and local contracts stay where they are. What changes is the top of the structure: investors now hold Delaware shares, and the German company becomes a 100% subsidiary.
Two follow-on issues need attention. First, where key decisions are made. If all directors of the Delaware company live and decide in Germany, German tax authorities may argue that the Delaware company is managed from Germany. We cover this in our article on place of effective management. Second, IP. If the code was written by the German company, investors will want to understand who owns it and how the parent benefits from it.
When should you not flip?
- Your investors are European. German and European angels and funds invest in GmbHs every day. If your round is local, a flip adds cost without unlocking anything.
- You plan to raise under the EU crowdfunding regime. ECSPR works for EU companies. A US parent does not help there.
- You already have a high valuation and no tax-neutral route. Get the tax answer first.
- You have no US investor lined up. Some founders flip "just in case" and pay two sets of running costs for years. Flip when a real investor or programme requires it.
How long does it take?
With responsive advisers, a simple flip takes roughly four to eight weeks: one to two weeks for Delaware formation and documents, two to four weeks for the tax analysis and notary appointment, and a week or two for register filings and bank updates. Existing investors, convertible loans or employee programmes all add time, because each holder has to consent and each instrument has to be mapped into the new structure.
If you are raising at the same time, sequence it: agree terms with the lead, then flip, then close. Investors are used to this order. For the instruments you will sign once the parent exists, see SAFE vs convertible note vs priced round.
Frequently asked questions
What is a Delaware flip?
A reorganisation in which founders exchange their shares in a non-US company, such as a German GmbH, for shares in a new Delaware corporation. The original company becomes a wholly owned subsidiary.
Do I need a notary for a Delaware flip from Germany?
Yes. Transferring shares in a German GmbH or UG requires a notarial deed under §15 GmbHG, and the notary files the updated shareholder list with the commercial register.
Is a Delaware flip taxable in Germany?
It can be. Contributing German shares to a foreign company may be treated as a disposal at market value. Whether a tax-neutral route applies depends on the facts, so get a German tax adviser to confirm before signing.
When is the best time to flip?
Early, while the company has a low value and few shareholders, and when a concrete US investor or programme requires a Delaware entity.
Can a German company raise on a US crowdfunding portal?
No. Regulation Crowdfunding requires issuers organised under US state law. A German company would need a US parent first, or could use the EU crowdfunding regime instead.
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Join the waitlist →Sources and further reading. §15 GmbHG (share transfers); SEC, Regulation Crowdfunding; Y Combinator documents; Delaware Division of Corporations.
Educational material, not legal, tax or investment advice. Rules and figures change; confirm with qualified counsel or a tax adviser in your jurisdiction before acting. Last updated October 6, 2026.