There are two main ways to get a prenuptial agreement in England & Wales: an online service, or a family-law solicitor. The online route is fast and fixed-fee and suits clear, straightforward finances; the solicitor route is bespoke and better for complex estates and heavy negotiation. Crucially, you do not have to choose one or the other – the most popular approach is to draft online and then pay a solicitor only to give independent advice, which keeps the cost down without losing the safeguard. This guide explains each route, what it costs, and how to decide.
At a glance
| Online service | Solicitor | |
|---|---|---|
| Cost | From £199 (fixed) | Usually four figures per side |
| Speed | Same day | Weeks |
| Best for | Clear, straightforward finances | Complex estates, trusts, heavy negotiation |
| Drafting | Guided, structured template | Bespoke, drafted for you |
| Legal advice | Take separately (recommended) | Included |
| Predictable price? | Yes – one fixed fee | No – usually billed by the hour |
The online route
An online service guides you through both partners’ finances – property, savings, pensions, businesses, debts and how you want each asset treated – and produces a professionally structured agreement instantly, for a fixed fee (see prenup costs). It is fast, affordable and predictable: the price you see is the whole cost of the document, with no hourly billing and no surprise at the end.
The main thing an online service does not automatically include is a lawyer’s advice, so you should still each take independent legal advice before signing – one of the factors that helps an agreement hold up. The good news is that reviewing a finished document costs far less than having one built from scratch.
The solicitor route
A solicitor drafts a bespoke agreement, takes your instructions, and negotiates between the two of you (usually with a second solicitor advising your partner). This is the right choice for genuinely complex situations – substantial trusts, layered business structures, overseas assets, or where the terms need heavy back-and-forth – but it costs significantly more, and because it is normally billed by the hour the final figure is hard to predict. See how much solicitors charge for a prenup for what drives the bill, and how to choose a prenup solicitor if you go this way.
The best of both
For most couples the smartest option sits between the two. You draft online to keep the cost down, then each have a solicitor review the finished agreement and give independent advice. Because the drafting is already done, the solicitor’s job is to advise rather than build from scratch – which costs a fraction of a full bespoke engagement while still ticking the independent-advice box. You end up with a sound document and proper advice for far less than a traditional two-solicitor process. See do you need a solicitor for a prenup? for how to combine the two.
How to decide which route is right for you
Match the route to your finances, not just your budget:
- Choose online if your finances are clear – a home, some savings, a pension, maybe a business you simply want ring-fenced – and you and your partner already broadly agree.
- Choose online + advice if you want the reassurance of a lawyer’s sign-off without paying for bespoke drafting – the sweet spot for most couples.
- Choose a full solicitor engagement if there are trusts, complex company structures, significant high-net-worth assets, or the terms need real negotiation.
Whichever you pick, make sure the agreement covers everything it should and rests on full financial disclosure – that matters more to whether it holds up than which route produced it.
What actually determines whether a prenup holds up
It is worth being clear about one thing, because it drives the whole decision: the route you take matters far less to an agreement’s strength than how it is made. Since Radmacher v Granatino (2010), the courts in England & Wales give a prenup significant weight when it was entered into freely, with full and frank disclosure on both sides, ideally with independent legal advice, and where the terms are fair and meet both partners’ needs. A prenup is not automatically binding either way – a court keeps a discretion under the Matrimonial Causes Act 1973 that no agreement can remove. A well-structured online document that ticks those boxes can carry the same weight as an expensively drafted one; a costly bespoke agreement that skips disclosure or is signed under pressure can still be set aside. So the online-versus-solicitor question is really about complexity, negotiation and reassurance – not about validity.
A worked example
Take a couple in their early thirties. She owns a flat worth about £300,000 with a mortgage; he has savings and a pension. They agree, without much argument, that each should keep what they brought in and share what they build together. Their finances are clear and their intentions aligned, so a full two-solicitor negotiation would be expensive overkill. Drafting online for a fixed fee and then each taking an hour of independent advice gives them a sound agreement for a fraction of the cost. Now change the facts: he part-owns a family company held in a trust, with overseas assets and other shareholders who care how the shares are treated. Here the drafting genuinely is bespoke and the negotiation real – a case for a full solicitor engagement. Same question, different answer, driven entirely by complexity.
Timing matters whichever route you choose
One practical point cuts across both options: leave enough time. An agreement signed in the final rushed days before a wedding is more vulnerable to a claim of pressure, so the Law Commission’s 2014 report suggested signing at least 28 days before the ceremony. The online route is fast, but do not use that speed to leave it to the last minute; the solicitor route takes weeks, so start early. See when to sign a prenup and how long a prenup takes to plan backwards from your wedding date, and avoid a last-minute prenup if you possibly can.
Common misconceptions about the two routes
A few myths steer couples wrong. The first is that only a solicitor-drafted prenup is “real” – not so; a well-structured online agreement that rests on disclosure, fair terms and correct signing stands on the same legal footing. The second is that going online means going without any legal input – also wrong, because you can and should layer independent advice on top. The third is that a solicitor makes a prenup guaranteed – no route does, because the court retains its discretion. Judge each option on what it is genuinely good at – fixed-fee structure and speed online, bespoke drafting and negotiation with a solicitor – rather than on these half-truths (see common prenup myths).
Online prenup vs solicitor: which should you choose?
The online prenup vs solicitor choice really comes down to complexity and budget. An online service is fast and fixed-fee, ideal for clear finances; a solicitor is better where there are trusts, complex business structures or heavy negotiation. The popular middle ground is to draft online and then pay a solicitor only to give independent advice on the finished agreement – a sound document and proper advice, at a fraction of the cost of full bespoke drafting.
Online prenup vs solicitor: FAQs
Is an online prenup as good as using a solicitor?
For straightforward finances, a professionally structured online agreement plus independent advice can be just as sound – and much cheaper (see prenup costs). For genuinely complex estates, a full solicitor engagement may still be the safer choice.
Do you still need a solicitor with an online prenup?
It is strongly recommended that each partner takes independent legal advice, even with an online agreement (see do you need a solicitor? and do both partners need a lawyer?).
Why is an online prenup so much cheaper?
Because you are paying a fixed fee for a structured document rather than open-ended hourly drafting and negotiation between two firms (see solicitor prenup costs).
Can I draft online and get a solicitor to check it?
Yes – that is the popular middle ground. Reviewing a finished agreement costs far less than bespoke drafting, and gives you the independent advice that helps it hold up.
Is an online prenup legally valid in the UK?
A prenup’s weight depends on how it was made, not where it was drafted. With full disclosure, fair terms and correct signing, an online agreement can carry the same weight as any other (see are prenups legally binding?).
How long does each route take?
An online agreement can be produced the same day; a full solicitor engagement typically takes several weeks once you factor in instructions, drafting and negotiation between two firms (see how long a prenup takes).
Can we use one solicitor between us?
No – a solicitor cannot advise both partners, because your interests may differ. For independent advice to count, each of you needs your own adviser, which is why the solicitor route means two sets of fees (see do both partners need a lawyer?).
Is a solicitor better for complex finances?
Generally yes. Where there are trusts, layered company structures, overseas assets or terms that need real negotiation, bespoke drafting earns its cost (see high-net-worth prenups). For clear finances, the online-plus-advice route usually offers better value.
Create your prenuptial agreement online
UK Prenup lets couples in England & Wales create a clear, fair prenuptial agreement online from £199, with your document generated instantly as a PDF. See how it works or get started.
UK Prenup is not a law firm and does not provide legal advice. A prenuptial agreement in England & Wales is not automatically binding, and both partners should take independent legal advice before signing.