Valuing your assets for a prenup sounds daunting, but it need not be. To complete the disclosure schedule you need a value for each asset — yet the goal is a fair, honest picture, not a forensic audit. This guide walks through how to value the main things sensibly, asset by asset, without overcomplicating it or running up needless cost.
Property
A recent estate-agent appraisal or a comparison with similar local sales is usually plenty. Note the figure and the rough date, and record any mortgage so the equity is clear. You do not generally need a formal surveyor’s valuation for a prenup, though for an unusual or high-value property it may be worth one. See also protecting a property with a prenup.
Pensions
Ask your provider for the current transfer value, usually called the cash-equivalent transfer value (CETV). Pensions are easy to overlook but can be among the most valuable assets a person has — sometimes worth more than the house — so it is well worth including them. See protecting a pension with a prenup and how pensions are split in divorce.
Savings, investments and shares
Use recent statements. For investments and shares that move in value, a recent valuation with the date attached is fine — you are capturing a fair snapshot, not predicting the market. See protecting savings and shares and stock options.
A business
A precise business valuation can be expensive, and for most prenups a reasonable estimate — based on accounts or your own informed view — is enough at this stage. If the business is a major asset, a more formal valuation may be worthwhile, and is something to raise when you take advice. See protecting a family business and prenups for business owners.
Debts
Do not forget the other side of the balance sheet. List mortgages, loans, credit-card balances and any business borrowing, with current figures from recent statements. Being clear about debt is just as important as being clear about assets — it is part of the same honest picture (see pre-marriage debts and prenups).
Everything else
For valuables, vehicles and other significant items, sensible estimates are fine. The point is honesty and completeness, not precision to the penny — which is exactly what makes the disclosure stand up if the agreement is ever tested. With your figures ready, see what to include in a prenup to pull the agreement together.
Record the date and keep the evidence
Whatever figures you use, note the date alongside each one — a valuation is only a snapshot, and values move. Keep the supporting evidence too: the estate-agent email, the pension CETV letter, recent statements. Store these with the signed agreement and the disclosure schedule (see storing your prenup). If the agreement is ever questioned, being able to show how you arrived at each figure is what turns an estimate into credible disclosure.
How much precision do you really need?
| Asset | Sensible source | Formal valuation needed? |
|---|---|---|
| Property | Estate-agent appraisal / local sales | Rarely |
| Pension | CETV from provider | No |
| Savings & investments | Recent statements | No |
| Business | Accounts or informed estimate | Sometimes, if a major asset |
| Valuables / vehicles | Sensible estimate | No |
Valuing assets for a prenup without overcomplicating it
Valuing assets for a prenup does not need forensic precision: a recent estate-agent figure for property, a CETV for pensions, recent statements for savings and investments, and a reasonable estimate for a business are all enough at this stage. Note the figure and the date, and keep the records. The point is an honest, complete picture — which is exactly what makes the disclosure stand up if the agreement is ever tested.
Why "honest and reasonable" is the right standard
It is tempting to think a prenup needs forensic, courtroom-grade valuations. It does not — and chasing that level of precision can waste money and delay signing past the point where the timing is comfortable. The purpose of valuing assets is to support full and frank disclosure: to give your partner an honest, reasonably complete picture of what you own so they can agree to the terms with their eyes open. A court assessing the agreement later is looking for exactly that — genuine, good-faith disclosure — not whether every figure was accurate to the pound. What sinks agreements is not an honest estimate that later proves slightly off; it is deliberate understatement or a hidden asset. Aim for honest and reasonable, and you are on solid ground.
When a formal valuation is worth it
There are a few situations where paying for a professional valuation earns its keep. The clearest is a substantial business, where the value is genuinely uncertain and a lot turns on it — here an accountant’s view lends real credibility. Others include an unusual or high-value property that is hard to compare to local sales, a significant art or collectibles collection (see art and collectibles in a prenup), or a complex holding such as intellectual property or royalties. For the everyday assets most couples hold — a home, a pension, savings, a car — a formal valuation is overkill. Match the effort to what turns on the figure.
A worked example
Take a couple pulling their figures together. One owns a flat: a quick estate-agent appraisal puts it at around £260,000, with a £150,000 mortgage, so roughly £110,000 of equity — noted with the date. Their pension CETV comes back at £180,000 from the provider. Savings are £22,000 from a recent statement, and a car is worth perhaps £12,000 on a quick online check. A modest share portfolio is £15,000 on today’s valuation. None of this required a paid valuation, yet it produces a clear, dated, honest picture that goes straight onto the disclosure schedule. That is exactly the standard a prenup needs.
Joint assets and how to split the valuing job
Where assets are jointly held, value the whole thing and note each partner’s share, rather than guessing at a slice. For a jointly owned home, for instance, record the full value and the outstanding mortgage, then how the equity is held. It is usually most efficient for each partner to gather the figures for the assets in their own name and then compare notes, so nothing is double-counted or missed. If one of you holds most of the wealth, be especially thorough there — that is where a challenge is most likely to focus. With the figures ready, our guide to what to include in a prenup shows how to turn them into the agreement itself.
Common valuation mistakes to avoid
A handful of avoidable errors crop up again and again. The first is forgetting the debts — a £300,000 house with a £220,000 mortgage is an £80,000 asset, and disclosing only the headline value overstates your position and undermines the honesty of the whole schedule. The second is leaving out pensions, which people routinely undervalue or ignore despite their often being the largest asset after the home. The third is using a wildly optimistic figure for a business or a property in the hope of impressing — a value a court would see straight through. The fourth is failing to date the figures, so that a valuation done a year before signing is quietly out of step by the time the agreement is executed. Finally, do not omit an asset because it feels awkward to mention: a deliberately hidden asset is the single fastest way to have an agreement torn up.
How valuation connects to disclosure and fairness
It is worth remembering why you are doing this at all. Valuing your assets is not an end in itself — it is the raw material for full and frank disclosure, which is in turn one of the pillars that makes a prenup fair and therefore likely to be followed. Because a prenup is not automatically binding in England & Wales — since Radmacher v Granatino (2010) a court gives a properly made agreement significant weight but keeps its discretion — the quality of your disclosure directly affects how much weight the agreement carries. Honest, dated, reasonably complete valuations are what turn a nicely worded document into one a court is comfortable upholding. Skimp on them, and you undermine everything the agreement is trying to achieve.
How much precision the law actually asks for
The standard for disclosure in a prenup was set by the Law Commission in its 2014 report on marital agreements, and it is lower than most people fear. At paragraph 6.88 the Commission explained that the requirement for a qualifying nuptial agreement should be disclosure of material information about the other party's financial situation, not of every asset; what matters is that neither partner is misled about the scale and shape of the other's finances. A house valued from a recent agent's appraisal, a pension recorded at its cash equivalent value, and a business estimated from its last accounts all meet that standard. A property "forgotten" or a company understated by a factor of ten does not, and under the test in Radmacher v Granatino the partner who did not know can say they signed without a full appreciation of the agreement's implications.
Pensions deserve the extra step because of what a court can do with them. Under section 24B of the Matrimonial Causes Act 1973 a pension can be shared by court order, and its cash equivalent value is the figure a court starts from, so it is the figure the schedule should show. Businesses deserve care for the opposite reason: the Supreme Court's decision in Standish v Standish confirmed that a business brought into the marriage is non-matrimonial property while its growth during the marriage may be shared, and the only way to separate the two later is a recorded value at the date of the marriage. A modest valuation now saves an expensive argument later.
Dates matter as much as figures. Section 25 of the Matrimonial Causes Act 1973 directs the court to the resources each party has at the divorce, so a schedule that says what each asset was worth on a stated date before the wedding is what lets a court see what was brought in and what was built together. Keep the statements and appraisals behind the figures with the signed agreement; they are the evidence that the disclosure was honest.
Valuing assets for a prenup: FAQs
Do you need professional valuations for a prenup?
Usually not — honest estimates are fine, though a major business may warrant one.
How do you value a pension for a prenup?
Use the cash-equivalent transfer value (CETV) from your provider.
How precise do the figures need to be?
Reasonably accurate and honest, not penny-perfect — the aim is a fair picture, not an audit (see the disclosure schedule).
Should I include debts as well as assets?
Yes — mortgages, loans and credit cards all belong in your disclosure for a complete picture (see pre-marriage debts).
What if an asset’s value changes after signing?
That is normal — you captured a fair snapshot at the time; a review clause lets you revisit values as they change.
When is a professional valuation worth paying for?
For a substantial business, an unusual or high-value property, or a significant art or IP holding — where a lot turns on an uncertain figure (see protecting a family business).
How do I value a jointly owned home?
Record the full value and the outstanding mortgage, then note how the equity is held between you, rather than guessing at each partner’s slice.
Will an honest estimate that turns out slightly wrong invalidate my prenup?
No — what matters is good-faith disclosure; deliberate understatement or a hidden asset is the real danger (see hidden assets and prenups).
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.