When should a startup first speak to a lawyer?
By SuLe · Updated 3 May 2026
The highest-value time to speak to a lawyer is before a decision becomes hard to undo — above all before you split equity with co-founders, before you sign a term sheet or accelerator agreement, and before your first hire. A short early conversation is cheap. Unpicking a bad equity split or a signed term afterwards is not.
Key facts
- The highest-value first touchpoints are before splitting equity, before signing a term sheet or accelerator agreement, and before the first hire.
- "Solicitor" is a protected, SRA-regulated title, and advice from a qualified lawyer attracts legal advice privilege.
- Shareholders' agreements, anything SEIS/EIS-critical, option schemes and dismissals are commonly not safe to DIY.
- A first consultation is often free or low-cost — many startup solicitors, including SuLe, offer one.
- Early legal spend is small relative to fixing a bad equity split, term sheet or IP gap after the fact.
What's the single most important time to call a lawyer?
Before you split equity and incorporate with co-founders. This is the decision with the longest shadow, and the hardest to reverse once shares are issued and relationships have moved on.
A brief conversation here sets up vesting, leaver terms and a founders' agreement while everyone still agrees. Those are exactly the terms founders most regret not having when a co-founder leaves early.
You do not need a full legal project at this stage — you need the structure right. Getting the equity and vesting sound at the start is worth more than any document you buy later.
Before which decisions should I always get advice?
Any decision that is hard to undo or that you sign personally. Three stand out for early-stage founders, and a short review before each pays for itself.
Before signing a term sheet: it sets the terms your full round is built on, and "standard" clauses can quietly cost you control. Before signing an accelerator agreement: these often bundle equity and warrants presented as non-negotiable. Before your first hire: employment terms, IP assignment and status all need to be right from day one.
| Trigger moment | Why now | What a lawyer does |
|---|---|---|
| Splitting equity / incorporating | Hardest decision to reverse | Sets vesting, leaver terms, founders' agreement |
| Signing a term sheet | Anchors the whole round | Flags preference, drag, pool, exclusivity |
| Signing an accelerator agreement | Binds equity and warrants | Explains what you are giving up |
| First hire | Status, IP and terms matter from day one | Gets the contract and IP assignment right |
| SEIS/EIS raise | Tax reliefs are condition-sensitive | Protects eligibility before you commit |
Why is early advice cheaper than late?
Because the cost of a legal problem grows the longer it sits. A missing vesting clause is a five-minute drafting point on day one and a bitter negotiation the day a co-founder walks.
The same pattern runs through startup law. A gap in your IP chain is trivial to fix now and a due-diligence blocker at your Series A. An SEIS condition breached at the raise cannot be repaired after the fact.
Early advice also unlocks legal advice privilege — a solicitor's advice can stay confidential in a dispute — and it is often free to start. Many startup solicitors, including SuLe, offer a free initial consultation precisely because scoping problems early is cheaper for everyone.
What if I've already passed one of these points?
Then the best time to speak to a lawyer is now. Very little is truly irreversible, and most early decisions can be corrected while they are uncontested.
You can add vesting after incorporation, sign a founders' agreement late, tidy IP assignments, or clean a messy cap table before a round. Each is easier before anyone has a reason to object.
The trap is waiting until a problem is live — a co-founder falling out, an investor's due diligence, a dispute. Fixing it then is possible but expensive, and your leverage is gone.
Worked example
Sofia and Raj plan Aureus Energy Ltd, a cleantech startup, and book a free consultation before incorporating. On the solicitor's advice they set a 50/50 split subject to four-year vesting with a one-year cliff, and sign a founders' agreement with leaver terms.
Eight months in, Raj leaves for a corporate role. Because his shares were vesting and the leaver terms were in place, only the vested portion stays with him and the rest is dealt with cleanly under the agreement — no dispute, no deadlock, no stranded equity. Had they split 50/50 outright with no advice, Sofia would have faced a departed co-founder holding half the company. The free first conversation was the cheapest decision they made.
Where founders go wrong
Splitting equity on a handshake
— vesting and leaver terms are painful to add once a co-founder has second thoughts.Signing a term sheet unread
— "standard" clauses set the control terms for your whole round.Treating accelerator terms as fixed
— they bundle equity and warrants worth understanding before you commit.Waiting for a problem
— advice is cheap and confidential before a dispute, expensive and reactive after one.
Related questions
Do I need a lawyer before I even incorporate?
If you have co-founders, a short conversation before you split equity and incorporate is one of the highest-value legal touchpoints there is. Equity splits and vesting are painful to unwind once set, so it is far cheaper to get the structure right before shares are issued than to renegotiate afterwards. [More: How should co-founders split equity in a UK startup?]
Is it too late to get advice if I've already incorporated?
No. Most early decisions can still be corrected — you can add vesting, sign a founders' agreement, or tidy IP assignments after incorporation. It is simply easier before things are contested, so if you have passed one of these points, the best time to speak to a lawyer is now. [More: What is a founders' agreement and do we need one?]
Should I get advice before signing an accelerator agreement?
Yes. Accelerator terms often include equity, warrants and other commitments that bind your cap table, and they are usually presented as standard. A brief review before you sign tells you what you are actually giving up, while you can still negotiate or walk away. [More: What are accelerator terms like — and should I sign them?]
How much does a first legal conversation cost?
Often little or nothing. Many startup solicitors, including SuLe, offer a free initial consultation to scope your situation. Even a paid first meeting is cheap relative to the cost of unpicking an equity split, a signed term sheet or a missing IP assignment later. [More: How much do startup lawyers cost in the UK?]
The most expensive legal problems almost always trace back to a conversation that happened too late — or not at all. A SuLe solicitor can scope your situation in a free first call and tell you what, if anything, needs doing now. Book a free 15-minute consultation
Keep reading: How much do startup lawyers cost in the UK? · Do I need a lawyer for my seed round? · What legal work can founders safely DIY? · How do I choose a startup lawyer in the UK? · What is a founders' agreement and do we need one? · How should co-founders split equity in a UK startup?
Primary sources: Solicitors Regulation Authority
