Last Updated: August 19, 2026
|Publish Date: August 19, 2026
The NAV formula, and two worked calculations that use it — one for a fund unit, and one for a company, where book value and adjusted net asset value differ by 62%.
Net asset value is what remains when total liabilities are subtracted from total assets. It is one of the oldest measures in finance and one of the most direct: everything the entity owns, less everything it owes.
The term is used in two settings that share a formula but answer different questions. Investors use NAV to price a fund unit. Valuation professionals use it to value a company on an asset basis. Both are covered below, and the calculation is worked through in each case.
NAV in Finance: Two Contexts
Fund NAV | Business NAV | |
|---|---|---|
What it measures | The value of one unit of a fund | The value of a company on an asset basis |
Assets measured at | Closing market prices | Fair value, restated from book value |
Frequency | Daily, after market close | At a specific valuation date |
Expressed as | Value per unit | Total equity value |
Used for | Subscriptions and redemptions | Valuation, transactions, financial reporting |
Also called | NAV per unit, NAV per share | Asset approach, adjusted net asset method |
The formula is the same. What differs is how rigorously the assets are measured, and that difference is where most of the work sits.
The NAV Formula
Net Asset Value = Total Assets − Total Liabilities
For a fund, that result is divided across the units in issue:
NAV per unit = (Total Assets − Total Liabilities) ÷ Units Outstanding
Variable | What it includes |
|---|---|
Total assets | Securities, cash, receivables, property, equipment, identifiable intangibles |
Total liabilities | Payables, borrowings, accrued expenses, deferred tax where applicable |
Units outstanding | Units or shares in issue at the measurement date (funds only) |
The computation of NAV is arithmetic. The judgment lies entirely in how each asset and liability is measured — which is why two people can apply an identical formula to the same balance sheet and reach very different answers.
NAV for Funds
A mutual fund calculates NAV once per trading day, after markets close. Holdings are marked to closing prices, liabilities including accrued management fees are deducted, and the result is divided by units outstanding.
Consider a fund with the following position at the close:
Line | Amount |
|---|---|
Portfolio holdings at closing prices | $248.0M |
Cash and receivables | $2.0M |
Total assets | $250.0M |
Payables and accrued fees | ($8.0M) |
Net assets | $242.0M |
Units outstanding | 12,100,000 |
NAV per unit | $20.00 |
Every subscription and redemption that day settles at $20.00. This is the sense in which NAV in mutual fund investing is most often used — a daily price, not a valuation opinion.
Exchange-traded and closed-end funds behave differently. Because their units trade on an exchange, the market price is set by supply and demand and can sit at a premium or a discount to NAV. NAV remains the reference point; it is simply no longer the transaction price.
NAV as a Business Valuation Method: The Asset Approach
This is where net asset valuation carries real consequence, and where the calculation stops being mechanical.
The asset approach is one of the three valuation approaches, alongside the income approach and the market approach. It values a business as the fair value of its assets less the fair value of its liabilities. In professional practice it is usually called the adjusted net asset method, and the word adjusted is doing considerable work.
Book Value Is Not Net Asset Value
A balance sheet records assets at historical cost less accumulated depreciation. That is an accounting convention, not a statement of worth. Property bought in 2008 sits at 2008 cost. Inventory that no longer sells still shows at cost. A customer base built over fifteen years appears nowhere at all, because internally generated intangibles are not capitalized.
Adjusted net asset value restates every line to what it is worth today.
A Worked Business NAV Calculation
The following manufacturer has a book equity of $12.4 million. Each line is then restated to fair value.
Balance sheet item | Book value | Fair value | Adjustment |
|---|---|---|---|
Cash | $1.2M | $1.2M | — |
Accounts receivable | $4.5M | $4.1M | Uncollectible balances written down |
Inventory | $6.8M | $5.7M | Obsolete stock written down |
Property and equipment | $12.0M | $20.5M | Appraised — land and buildings carried at 2011 cost |
Identified intangibles | — | $3.2M | Customer relationships, not on the balance sheet |
Total assets | $24.5M | $34.7M | |
Accounts payable | ($3.1M) | ($3.1M) | — |
Debt | ($9.0M) | ($9.0M) | — |
Deferred tax on step-up | — | ($2.5M) | Tax on the net uplift, at 25% |
Total liabilities | ($12.1M) | ($14.6M) | |
Net asset value | $12.4M | $20.1M | +62% |
The adjusted figure is 62% above book. Nothing about the business changed between the two columns — only the question being asked.
Fair Value Adjustments in Practice
Four adjustments do most of the work in a business NAV calculation:
Real property — usually the largest single adjustment, and the one most often understated when land has been held for years
Inventory and receivables — typically written down, for obsolescence and collectability
Unrecorded intangibles — customer relationships, trade names, developed technology. These are identified using the same techniques applied in a purchase price allocation
Deferred tax on the step-up — the adjustment most commonly omitted
The last one deserves attention. Writing assets up to fair value creates a gain that would be taxed on a sale. A buyer prices that future liability into what they will pay, so it belongs in the calculation. Omitting it overstates value — in the example above, by $2.5 million.
When NAV Is the Right Method
Use the asset approach when | Use a different approach when |
|---|---|
The business is asset-heavy — real estate, manufacturing, shipping | Value comes from earnings rather than assets |
It is a holding or investment company | The business is a profitable operating company |
Earnings are minimal, negative or unrepresentative | A discounted cash flow model can be reasonably supported |
The premise is liquidation or orderly wind-down | Reliable trading or transaction comparables exist |
It is an early-stage company with assets but no earnings | Intangible value dominates the balance sheet |
The distinction rests on a single question: does the value of this business come from the assets it holds, or from the cash those assets generate? Where it is the latter, an asset-based figure sets a floor rather than a conclusion.
A profitable operating company will normally be worth more than its net assets, because the earnings stream is worth more than the equipment producing it. Where a business is worth less than its net assets, that is itself a finding — it usually indicates the assets would be more valuable deployed elsewhere.
NAV, Market Value and Why They Diverge
Net asset value and market value answer different questions, and the gap between them is informative rather than an error.
Net asset value | Market value | |
|---|---|---|
Basis | What the assets are worth individually | What a buyer will pay for the business as a whole |
Captures goodwill | No | Yes |
Captures synergies | No | Where a specific buyer is identified |
Reflects earnings power | No | Yes |
Best used as | A floor, or a full conclusion for asset-holding entities | A conclusion for operating businesses |
For asset-holding entities the two converge. For operating businesses they separate, and the size of that separation is broadly the value of everything the balance sheet cannot record.
What Reviewers Examine
A net asset valuation submitted for audit, tax or transaction purposes is tested at the adjustment level. Reviewers typically ask:
Who valued the real property, when, and on what basis
Whether inventory and receivable write-downs are supported by ageing and turnover data
How unrecorded intangibles were identified and measured
Whether deferred tax on the step-up has been recognized, and at what rate
Whether the premise of value — going concern or liquidation — is stated and consistently applied
Whether the asset approach is appropriate at all, given the company's earnings profile
The last point produces the most challenge. Applying an asset approach to a profitable operating company, without explaining why the income approach was rejected, is among the more common findings in valuation review. Our guide to what a valuation report should contain sets out the full disclosure checklist.
Get a Defensible Net Asset Valuation
An asset-based valuation is only as credible as the adjustments behind it, and those adjustments are what reviewers test. AcumenSphere produces valuations built on the asset approach with every restatement documented — property appraisals, inventory and receivable analysis, intangible identification and the deferred tax effect — in a form that holds up through audit and transaction scrutiny.
If you are valuing an asset-heavy business, a holding company, or an entity being wound down, contact our team to discuss the approach your situation requires.