A flip is a restructuring in which the owners of a non-US startup exchange their shares for the same stakes in a new Delaware corporation, so the original company becomes a wholly owned subsidiary of the Delaware parent. US venture investors usually ask for one before they invest, because they want to buy preferred stock in a company governed by Delaware law and papered on standard US documents. If you’re going to flip, do it before your first priced round, and get tax advice in your home country before anyone signs, because the exchange can be taxable there.
Key takeaways
- After a flip, the stockholders own the Delaware parent in the same proportions they owned the original company, and the original company keeps running the business as a subsidiary.
- The usual method is a share exchange, which needs every holder to sign or a drag-along that can compel them. A merger or a domestication works only in some countries.
- Home-country tax is the biggest risk. Many countries offer deferral or advance rulings, but you usually have to apply before the exchange.
- Flip before a priced round. Preferred stock, investor consents and a longer cap table make a later flip slower, costlier and sometimes impractical.
- Options, SAFEs, intellectual property and intercompany arrangements all have to be moved or replaced, not just the shares.
- A flip is hard to undo. Do it because a US investor needs it, not on speculation.
What is a flip?
In a flip, the founders form a new Delaware corporation, and the stockholders of the existing company (an English limited company, an Indian private limited company, a Canadian corporation, a Brazilian limitada and so on) transfer their shares to it. Each holder receives Delaware shares in the same proportion they held before. When it’s done, the Delaware company owns 100% of the original company, which keeps its employees, customer contracts, bank accounts and licenses and continues to operate locally. The cap table moves up a level. The business itself doesn’t move.
Teams in the UK, Europe, Israel, India, Africa, Latin America and Southeast Asia all face the question when a US fund leads their round. Some regions use a Cayman Islands or Singapore parent instead of Delaware, usually for tax reasons or because local investors prefer it. If your investors are US venture funds, Delaware is the default, and you should only choose another parent jurisdiction with a clear tax or investor reason and your lead’s agreement.
Why do US investors want a Delaware parent?
US venture funds are built to buy preferred stock in Delaware corporations. Their SAFEs, term sheets and the NVCA model documents are written for Delaware law, their counsel know the statute and the Court of Chancery, and their own fund agreements often limit how much they can put into non-US companies. A non-US company asks them to learn a new corporate law and, often, local foreign-investment rules for every financing. A Delaware parent also makes it simpler to grant incentive stock options to US employees and gives US stockholders a possible path to qualified small business stock (QSBS) treatment, which is available only for stock of a US corporation. See Why Do VCs Require a Delaware C Corp?
Requirements change, so ask your lead what they need before you start. In late 2025, Y Combinator dropped Canada from its accepted countries of incorporation, then restored it in February 2026.
How does a flip work?
There are three ways to do it, and local law decides which are available.
| Method | How it works | Who has to agree | Where it’s used |
| Share exchange | Each holder transfers its shares in the existing company to the Delaware company in exchange for Delaware shares | Every holder, unless the existing articles or shareholders’ agreement contain a drag-along that can compel the rest | The default in most countries |
| Merger | A new subsidiary of the Delaware company merges with the existing company, and holders receive Delaware shares by operation of law | The vote that local law and the company’s documents require; dissenting holders may have exit or appraisal rights | Where local law provides a merger or amalgamation procedure that can deliver parent shares to holders |
| Domestication | The existing company itself becomes a Delaware corporation, with no parent and subsidiary | Holder approval under local law | Only where the home country lets a company continue into another jurisdiction |
A share exchange is simple when the cap table is short and everyone is on board. Every additional holder is another signature to chase, and one holdout can stall the deal unless your documents give you a way to bring them along.
What are the steps?
- Confirm with your lead investor what they need: Delaware or another parent, timing, and whether the flip must close before or at the financing.
- Hire tax advisors and local counsel in your home country, and apply for any ruling or clearance the exchange needs.
- Form the Delaware corporation and build the exchange cap table, so every holder keeps the same percentage.
- Sign the share exchange agreement (or merger documents) and collect stockholder approvals and any drag-along notices.
- Issue the Delaware shares, update the stock ledger and put founder vesting in place at the parent level.
- Replace options, SAFEs and other convertibles with parent-level equivalents.
- Put intercompany agreements in place covering services, intellectual property and cost sharing.
- Make any local filings that record the new owner.
- Get a 409A valuation before granting new options at the parent.
A worked example
Lumen Labs Ltd is an English company with 1,000 ordinary shares: two founders hold 450 each, and an angel holds 100. A US fund offers to lead a seed round on the condition that the company flips.
The founders form Lumen Labs, Inc. in Delaware with 10,000,000 authorized shares at $0.00001 par value and choose an exchange ratio of 8,000 Delaware shares for each English share. Each founder receives 3,600,000 shares and the angel receives 800,000, for 8,000,000 shares outstanding. The board adopts a 1,000,000-share option pool, leaving 1,000,000 authorized shares in reserve.
| Holder | Ltd shares | Inc. shares | % of issued | % fully diluted |
| Founder 1 | 450 | 3,600,000 | 45% | 40% |
| Founder 2 | 450 | 3,600,000 | 45% | 40% |
| Angel | 100 | 800,000 | 10% | about 8.9% |
| Option pool | none | 1,000,000 | none | about 11.1% |
The ratio is arbitrary. What matters is that each holder’s percentage of the issued shares is the same before and after. If the English company had already raised on a convertible instrument, that instrument would be replaced with a SAFE issued by the Delaware company on the same economic terms. If the founders’ English shares were fully vested, expect the US investor to ask for vesting on the new shares, and ask for credit for the time already served. Any founder who is a US taxpayer and receives Delaware shares subject to vesting should consider an 83(b) election, which must be filed within 30 days of the date the shares are issued.
What are the tax issues?
This is where flips go wrong, and the answer depends on the country. In most countries, swapping local shares for shares of a foreign company is a disposal that can be taxed. Many countries offer relief if conditions are met. The UK, for example, has share-for-share exchange relief, and companies usually seek advance clearance from HMRC before the exchange. Canadian companies often use an exchangeable share structure to defer Canadian tax. Some countries tax the exchange outright, and in those countries the bill grows as the company becomes more valuable. UK companies with SEIS or EIS investors need careful structuring to protect those investors’ reliefs.
The US side has issues too. After the flip, the original company is a controlled foreign corporation of a US parent, which brings annual US information returns and rules that can pull some of the subsidiary’s income into the parent’s US tax base. Founders who aren’t US persons will now own US stock, which can be subject to US estate tax above a low threshold unless a treaty applies. Whether Delaware shares received in a flip can qualify for QSBS treatment, and from when, depends on how the exchange is structured. And where the intellectual property sits matters: moving it out of the home country can trigger an exit tax, so many flips leave it in the subsidiary under an intercompany license.
None of this is tax advice. Talk to tax advisors in each country involved before the term sheet is signed, not after.
When should we flip?
Before your first priced round, and ideally soon after a US investor tells you they need it. Earlier is simpler: fewer holders to sign, a lower value if the exchange is taxable, and no preferred stock with its own consent rights. A cap table with only common stock and a few SAFEs or convertible notes is usually straightforward, as long as the holders agree to swap their instruments. After a priced round, every series of preferred stock, every investor consent right and every local investor makes the flip slower and more expensive, and sometimes impractical.
Don’t flip on speculation, though. Legal and tax fees commonly run into the tens of thousands of dollars, and the structure is hard to reverse. Several Indian companies that flipped years ago, including Groww and PhonePe, have since moved their parents back to India ahead of local listings, and PhonePe’s owner reportedly paid close to $1 billion in tax to do it.
If you haven’t formed a company yet and expect to raise from US funds, consider starting with a Delaware parent and forming a local subsidiary when you hire locally. Get local advice first, because a Delaware company that is managed entirely from abroad can still be treated as tax resident in that country.
What else has to move?
Options. Holders of options in the original company receive replacement options in the Delaware parent with the same economics. Going forward, the parent grants ISOs to US employees and NSOs to everyone else. Local tax-favored option schemes may not survive the flip or may need a local sub-plan. See NSO vs ISO and Employee Stock Option Plan.
SAFEs and notes. Exchange them for parent-level instruments on the same terms, with the holders’ written agreement. See SAFE.
Intellectual property. Confirm that everything the founders and early team built is assigned to one company in the group, under signed confidentiality and invention assignment agreements. Investors will check this in diligence. See Who Owns Startup IP?
US registrations. A Delaware parent with no US operations doesn’t need to register in another state. Once you hire or open an office in a state, it will. See Do I Need to Foreign Qualify My Delaware Startup?
For more on choosing where to incorporate, see Where Should I Incorporate My Startup?, Delaware C Corp Incorporation Documents, What Is a Cap Table? and Startup Due Diligence.
If you’re planning a flip, see our Delaware C Corp Startup Package or contact us.
