Published Thursday 18 June 2026

Table of contents

• What is purchase price allocation?
• Why purchase price allocation matters
• When to perform a purchase price allocation
• How purchase price allocation works
• Key components of purchase price allocation
• Tax implications of purchase price allocation
• Goodwill and impairment testing
• Purchase price allocation example
• Common challenges with purchase price allocation
• Simplify your acquisition accounting with Xero
• FAQs on purchase price allocation

Key takeaways

• Purchase price allocation (PPA) breaks down the price you pay for a business into its individual assets, liabilities, and goodwill so your financial records accurately reflect what you've bought.
• UK businesses follow International Financial Reporting Standard (IFRS) 3 or Financial Reporting Standard (FRS) 102 Section 19, depending on their reporting framework, to complete a PPA after an acquisition.
• Correctly allocating the purchase price can unlock tax benefits through amortising intangible assets and help you avoid compliance issues with HM Revenue and Customs (HMRC).
• You'll likely need a qualified valuation specialist to identify and value intangible assets such as customer relationships, brand names, and intellectual property.

What is purchase price allocation?

When you buy another business, the price you pay rarely matches the book value of the assets on its balance sheet. Purchase price allocation is the process of assigning that total price to the individual assets acquired and liabilities assumed, at their fair values.

In accounting terms, PPA identifies everything of value in the acquired business, including tangible assets like equipment and property, intangible assets like customer lists and patents, and any liabilities such as outstanding loans. Whatever portion of the purchase price can't be assigned to these identifiable items gets recorded as goodwill.

In the UK, PPA falls under IFRS 3 (Business Combinations) for companies using international standards, or FRS 102 Section 19 for those on UK Generally Accepted Accounting Practice (GAAP). Both frameworks require you to recognise the fair value of what you've acquired, not just the figures that appeared in the seller's accounts.

Why purchase price allocation matters

Getting your purchase price allocation right affects several areas of your business after an acquisition, from financial reporting to tax strategy.

First, PPA gives you financial clarity. By breaking down the purchase price into individual components, you'll know exactly what you paid for and can track the value of each asset over time. This makes your balance sheet more accurate and your financial reporting more meaningful to investors, lenders, and partners.

Second, PPA supports better strategic planning. Understanding the value of specific assets, such as a strong customer base or proprietary technology, helps you make informed decisions about where to invest and what to prioritise after the acquisition.

Third, there are direct tax and depreciation benefits. Intangible assets identified through PPA can often be amortised over their useful life, reducing your taxable profits each year. Without a proper allocation, you could miss out on legitimate tax relief.

Finally, PPA is a compliance requirement. Both IFRS 3 and FRS 102 Section 19 mandate that you complete this exercise. Failing to do so, or doing it poorly, can lead to financial restatements, audit issues, and scrutiny from HMRC.

When to perform a purchase price allocation

Timing matters when it comes to PPA. Understanding when to carry out this process can save you from costly mistakes and missed opportunities.

Under both IFRS 3 and FRS 102 Section 19, you're required to complete a PPA at the acquisition date. You typically have up to 12 months from the deal closing to finalise the allocation, known as the "measurement period." During this window, you can adjust provisional values as you gather more information about the assets and liabilities you've acquired.

A growing number of buyers also carry out a preliminary PPA before completing the deal. A pre-deal PPA helps you understand what you're actually paying for, spot potential risks in the asset mix, and negotiate a fairer price. If you're on the buying side, a thorough due diligence checklist should include PPA considerations. It's particularly useful if the business you're buying has significant intangible assets that don't appear on the balance sheet.

How purchase price allocation works

The PPA process follows 3 main steps. While the detail can get complex, the overall approach is straightforward.

1. Identify all assets and liabilities

List every tangible asset (property, equipment, stock, cash) and liability (loans, creditors, lease obligations) in the acquired business. Then identify intangible assets that may not appear on the balance sheet, such as customer relationships, brand names, intellectual property, proprietary databases, trademarks, non-compete agreements, and technology platforms.

2. Determine fair values

Assign a fair value to each identified asset and liability. Fair value represents what a knowledgeable buyer would pay in an arm's length transaction. For tangible assets, this might involve market comparisons or appraisals. For intangible assets, you'll typically need a valuation specialist who can apply techniques such as the income approach, market approach, or cost approach.

3. Calculate goodwill

Subtract the total net fair value of all identified assets and liabilities from the purchase price. The remaining amount is goodwill, which represents the premium you paid for factors like the business's reputation, workforce, and future earning potential.

Key components of purchase price allocation

A completed PPA breaks the purchase price into several categories. Knowing what these are helps you understand your valuation report and ask the right questions.

• Calculate net identifiable assets by totalling all tangible assets (property, equipment, stock) and subtracting liabilities (debts, obligations), measured at fair value rather than book value.
• Apply fair value adjustments to account for differences between the book values in the seller's accounts and the actual fair values at the acquisition date. Property, for example, may be worth significantly more than its depreciated book value.
• Recognise intangible assets that are separately identifiable but lack physical form, including customer relationships, brand names, patents, software, licensing agreements, and databases. These often represent a large share of the purchase price.
• Record goodwill as the residual amount after all identifiable assets and liabilities have been valued. It captures the value of things that can't be separately identified, such as assembled workforce, market position, and expected synergies.

Tax implications of purchase price allocation

How you allocate the purchase price has a direct effect on your tax position in the years following an acquisition. Getting this right can result in significant savings.

Intangible assets identified and valued through PPA can typically be amortised over their useful life. This amortisation expense reduces your taxable profits each year. For example, if you allocate £100,000 to customer relationships with a 10-year useful life, the amortisation charge of £10,000 per year reduces your accounting profits. Whether this translates directly into a tax deduction depends on the specific rules that apply to your acquisition; consult your accountant or tax adviser for details.

Goodwill, by contrast, is treated differently. Under IFRS, goodwill isn't amortised but is instead tested annually for impairment. Under FRS 102, goodwill is amortised over its estimated useful life (with a maximum of 5 years if you can't reliably estimate the period). From a tax perspective, HMRC may allow tax deductions for goodwill acquired in certain business combinations, but the rules are specific and have changed over time.

You should also consider deferred tax. When fair values assigned during PPA differ from the tax base of the assets, temporary differences arise. These create deferred tax assets or liabilities that affect your balance sheet and future tax payments. Working with a tax adviser familiar with UK acquisition accounting is essential to capture every available relief.

Goodwill and impairment testing

Goodwill often makes up a significant portion of the purchase price, so understanding how to account for it after the acquisition is critical.

Goodwill is calculated as the difference between the total purchase price and the net fair value of all identifiable assets and liabilities. If you pay £500,000 for a business whose identifiable net assets are worth £350,000 at fair value, your goodwill is £150,000.

Under IFRS, you don't amortise goodwill. Instead, you test it for impairment at least once a year, and more frequently if there are signs the business isn't performing as expected. An impairment test compares the carrying value of the goodwill (plus the related business unit) to its recoverable amount. If the recoverable amount is lower, you write down the goodwill, and that loss hits your profit and loss statement.

Under FRS 102, goodwill is amortised over its useful life. If you can't estimate the useful life reliably, the default maximum is 5 years. You still need to review goodwill for impairment indicators each year and carry out a full impairment test if any arise.

Purchase price allocation example

A practical example helps show how PPA works in a real scenario. Here's a simplified UK-based case.

Suppose you acquire a landscaping company for £500,000. After completing the PPA process with a valuation specialist, you identify the following fair values:

• Equipment and vehicles: £150,000
• Customer contracts and relationships: £80,000
• Brand name and reputation: £40,000
• Stock and supplies: £20,000
• Cash in hand: £10,000
• Outstanding liabilities (creditors, lease obligations): -£50,000

The total net identifiable assets come to £250,000. Since you paid £500,000, the remaining £250,000 is recorded as goodwill. This goodwill reflects the value of the landscaping company's established workforce, local market position, and the growth you expect from combining it with your existing operations.

Under FRS 102, you'd then amortise the goodwill over its estimated useful life, and amortise the intangible assets (customer contracts and brand name) over their respective useful lives. Each of these amortisation charges reduces your taxable profits.

Common challenges with purchase price allocation

PPA isn't always straightforward, even with professional support. Being aware of the common hurdles helps you prepare and avoid delays.

• Valuing intangible assets is complex because customer relationships and brand value don't have simple market prices. You'll need specialised methodologies and reliable data about future cash flows, customer retention, and market conditions. Understanding different business valuation methods helps you assess whether the process is being done properly.
• Aligning accounting standards requires choosing between IFRS 3 and FRS 102 Section 19, depending on your reporting framework. Each has different requirements for recognising and measuring assets, and applying the wrong standard can lead to restatements.
• Documenting your decisions thoroughly is essential because both accounting standards and HMRC expect detailed records supporting your valuations and allocation decisions. Incomplete records create risk during audits.
• Finding the right expert takes effort because not every accountant specialises in PPA. You'll need a valuation professional with experience in business combinations, ideally someone who understands your industry and the UK regulatory environment. You can search for qualified professionals in the Xero advisor directory.

Simplify your acquisition accounting with Xero

Acquiring a business creates a wave of financial complexity, from tracking new assets and liabilities to staying on top of reporting requirements. Keeping your records organised from day 1 makes every stage of the process smoother.

Xero's cloud accounting software brings your finances together in 1 place, so you can manage the combined business without drowning in spreadsheets. Automated bank reconciliation, customisable reporting, and real-time cash flow monitoring help you stay in control as you integrate the acquisition into your operations. Get one month free.

FAQs on purchase price allocation

Here are answers to frequently asked questions about purchase price allocation.

Who is responsible for completing a purchase price allocation?

As the buyer, you're responsible for completing the PPA and reflecting it in your financial statements. Most businesses engage a qualified valuation specialist or advisory firm to handle the technical work.

How long does a purchase price allocation take?

The initial PPA can take several weeks to a few months, depending on the complexity of the acquired business. You have up to 12 months from the acquisition date to finalise the allocation under the measurement period rules.

Can you amend a purchase price allocation after it's finalised?

Once the measurement period closes, the allocation is generally final. Any changes after that point would need to be treated as corrections of errors under the relevant accounting standard, which may require restating prior financial statements.

Do small businesses need to complete a purchase price allocation?

If your business acquires another business (rather than just buying individual assets), you're required to complete a PPA under FRS 102 Section 19 or IFRS 3, regardless of your size. The scope and complexity will vary, but the obligation applies.

What happens if goodwill is impaired?

If your annual impairment test reveals a loss, work with your accountant to determine the write-down amount and disclose it properly in your financial statements. An impairment charge can affect lending covenants and shareholder reporting, so it's worth flagging early with your bank and advisers.