Candice Horbacz
The ongoing economic uncertainty stemming from global geopolitical threats, persistent supply chain disruptions, rising interest rates, and lagging economic growth across many developed countries has acutely highlighted the critical importance of private business investment. Policymakers worldwide are actively working to bolster critical infrastructure and enhance economic resilience, strategically aligning their economic policies toward sustainable growth. In this environment, the nuanced and often overlooked aspects of corporate taxation, particularly capital cost recovery, emerge as pivotal determinants of investment decisions with far-reaching consequences for national economies.
The Nexus of Capital Investment and Economic Resilience
Private sector investment significantly outpaces public investment, as evidenced by 2019 data from the International Monetary Fund (IMF), where private investment in OECD countries exceeded public investment by a factor of five. The average OECD nation saw nearly $300 billion in private investment compared to $55 billion in public investment. This stark disparity underscores that fostering a stable and attractive environment for private business investment will be indispensable in navigating the economic challenges of the coming years.
At the heart of stimulating this private investment lies the intricate framework of capital cost recovery. This refers to how a tax system permits businesses to recover the cost of their investments through mechanisms like depreciation or amortization. These deductions directly influence a business’s taxable income, its effective tax rates, and, crucially, its willingness to undertake new investment projects. When businesses are unable to fully deduct capital expenditures in real terms, they face an artificially inflated tax base, leading to higher effective tax rates. This disincentivizes capital formation, resulting in fewer capital investments, which in turn stifles worker productivity and suppresses wages. Economic theory and empirical evidence strongly advocate for businesses to be allowed to fully deduct their capital investments in real terms, either through immediate full expensing or via a neutral cost recovery system that accounts for the time value of money.
Understanding Capital Allowances: Mechanisms and Economic Principles
The process of capital cost recovery is primarily governed by depreciation schedules and capital allowances. Businesses calculate their profits by subtracting costs (such as wages, raw materials, and equipment) from revenue. However, unlike immediate operational costs, capital investments are generally not treated as fully deductible expenses in the year they are incurred. This practice inadvertently introduces a bias favoring short-term projects over those requiring substantial upfront capital investment.
Depreciation schedules specify the period, often derived from an asset’s economic life, over which an asset’s cost must be written off. By the end of this period, the business would have nominally deducted the initial dollar cost of the asset. However, a fundamental flaw in most traditional depreciation schedules is their failure to account for the time value of money, which includes both a normal return on investment and the corrosive effects of inflation.
Common depreciation methods include straight-line and declining-balance. The straight-line method allows for an equal allowance each year, while the declining-balance method bases the annual allowance on the asset’s remaining book value. Consider a machine costing $10,000 with a 10-year straight-line depreciation schedule, allowing a $1,000 deduction annually. If inflation is 2 percent and the required real return is 5.5 percent, the real value of that $1,000 deduction diminishes significantly over time. By the tenth year, that $1,000 deduction is worth only $522 in today’s terms. Cumulatively, the business might only recover $7,379 in real terms, just 73.8 percent of the initial investment. This understates true business costs, inflates taxable profits, and effectively taxes "phantom income" that does not genuinely exist.
This erosion of value is exacerbated by longer depreciation schedules and higher rates of inflation or interest. Consequently, lower capital allowances translate into a higher cost of capital, which demonstrably leads to reduced business investment, diminished capital stock, and ultimately, lower productivity and wages. The capital cost recovery rate, expressed as a percentage of the net present value of investment costs that businesses can write off, ideally should be 100 percent, signifying the ability to deduct the full cost, including a normal return and inflation. A rate below 100 percent indicates inflated taxable income and an overstated tax bill, making capital investment more expensive and less attractive.
Capital Allowances: A Driver of Economic Growth and Productivity
While often perceived as a technical tax detail, capital allowances wield significant economic influence. Any cost recovery system that falls short of allowing full expensing in the year of investment inherently denies the recovery of a portion of that investment, artificially inflating taxable income and increasing tax liabilities for businesses. This distortion directly increases the cost of capital, thereby slowing investment, curtailing the growth of the capital stock, and ultimately diminishing productivity, employment, and wages.
Extensive economic research consistently supports the notion that investment is highly sensitive to changes in the cost of capital. Economists Kevin Hassett and R. Glenn Hubbard, in a comprehensive literature review, concluded that there is a "consensus… that investment demand is sensitive to taxation." This means that policy decisions, whether extending asset lives or increasing corporate income tax rates, directly impact capital demand and investment levels, consequently affecting capital stock growth. A 2023 IMF study further revealed that investment is sensitive to inflation, finding that a one-percentage-point increase in inflation can reduce optimal investment levels by 0.42 percent under typical tax parameters. A reduction in the capital stock inevitably leads to lower wages for workers and slower overall economic growth.
Empirical studies have reinforced these findings. Research by Eric Zwick and James Mahon on US bonus depreciation policies between 2001-2004 and 2008-2010 demonstrated a 10.4 percent to 16.9 percent increase in investment in eligible capital compared to ineligible capital, with small firms showing even greater sensitivity. Similarly, a UK study by Giorgia Maffini, Jing Xing, and Michael P. Devereux on accelerated depreciation allowances introduced in 2004 found that the investment rate of qualifying companies increased by 2.1-2.5 percentage points relative to non-qualifying ones. China’s shift to a consumption-based VAT, which includes an investment tax credit, also positively impacted investment, as shown by Yongzheng Liu and Jie Mao.
Beyond overall investment levels, capital allowances also critically influence the composition of investment, creating distortions among different asset types. Preferential or punitive treatment for specific assets can steer investment away from or towards certain industries. For instance, lengthening depreciation schedules for machinery could harm the manufacturing sector, while allowing expensing for machinery could spur its growth relative to other investments.
Across OECD countries, significant disparities exist in average capital cost recovery rates by asset type. In 2025, businesses could recover, on average, 86 percent of machinery investment costs and 78.2 percent for intangibles, but a mere 50.3 percent for industrial buildings. This differential treatment can lead to an uneven allocation of capital across the economy. Furthermore, in high-inflation environments, such as the OECD’s annual inflation rate of 3.6 percent in 2025, the investment amount recoverable is significantly diminished. An increase in inflation from 2 percent to 3.6 percent can reduce the recoverable investment by up to 4 percentage points, with long-term investments like buildings being particularly vulnerable.
Past tax changes in the United States, such as the Jobs and Growth Tax Relief Reconciliation Act of 2003 (JGTRRA), which allowed partial expensing for certain capital equipment, led to an 11.4 percent reduction in the cost of these investments. Research confirmed that this policy "had a powerful effect on the composition of investment," favoring equipment with longer recovery periods. Similarly, the UK’s policy in the 2010s of trading longer asset lives for a lower corporate tax rate saw business investment suffer, potentially contributing to regional economic disparities by disadvantaging capital-intensive industries.
OECD Landscape: A Snapshot of Capital Cost Recovery in 2025
The treatment of capital allowances varies dramatically across OECD countries. In 2025, the average capital cost recovery rate for businesses in OECD countries stands at 70.1 percent. This average, however, masks a wide spectrum of policies. Estonia and Latvia lead with a perfect 100 percent recovery rate due to their unique cash-flow tax systems, while Chile lags significantly at just 48.4 percent, and New Zealand at 49.1 percent, for a combined average across industrial buildings, machinery, and intangibles.
For industrial buildings, tax treatment remains relatively poor across the OECD, with an average allowance of only 50.3 percent. While Estonia and Latvia offer 100 percent recovery, countries like Costa Rica, Hungary, and Japan provide only 27.9 percent, and New Zealand a mere 20 percent. This unfavorable treatment for buildings can impede long-term infrastructure and industrial development.
Machinery generally enjoys the most favorable tax treatment, with an OECD average allowance of 86 percent. The United Kingdom, the United States, and Canada notably offer 100 percent cost recovery for machinery, largely due to permanent or temporary full expensing policies. Estonia and Latvia also achieve full recovery through their cash-flow tax models. In contrast, Chile (70.6 percent), Colombia, Greece, and Poland (all 73.8 percent) represent countries with less generous provisions for machinery investments.
For intangible assets, the average capital allowance in OECD countries is 78.2 percent. Estonia, Latvia, and Canada again lead with 100 percent, with Canada implementing specific immediate expensing for patents. Australia, New Zealand, and Portugal (all 54.8 percent) have the least favorable treatment among countries with allowances for intangibles, followed by the United States (63.3 percent). Chile stands out by providing no allowances for intangible assets.
The Erosion by Inflation and Interest Rates
One of the most insidious challenges to effective capital cost recovery is the pervasive effect of inflation and high interest rates. As demonstrated, traditional depreciation schedules, which are based on historical costs, fail to adjust for the decreasing purchasing power of money over time. In a higher inflation environment, the real value of future deductions diminishes, effectively reducing the true recovery rate.
In 2025, with the OECD’s annual inflation rate at 3.6 percent, the impact on investment recovery is palpable. If we assume a required real return on investment of 5.5 percent, the amount businesses can recover for buildings drops to 46.3 percent, for machinery to 83.9 percent, and for intangibles to 75.4 percent. This represents a reduction of up to 4 percentage points in recoverable investment compared to a 2 percent inflation scenario. Even seemingly low rates of inflation can significantly erode the value of deductions for long-term assets. Similarly, elevated interest rates increase the real return on investment required, further reducing the present value of future deductions.
Remarkably, only a handful of OECD countries – Mexico, Israel, and Chile – currently incorporate inflation adjustments into their capital allowance systems. This makes their tax systems partially more neutral regarding capital investment in volatile economic conditions, allowing businesses to recover a larger share of their investment costs in real terms.
Historical Trajectories: Capital Allowances and Corporate Tax Rates (2000-2025)
The period between 2000 and 2025 has seen significant shifts in corporate tax policies across the OECD, affecting both statutory rates and capital allowances. The simple average of OECD countries’ capital cost recovery rates experienced a gradual decline from 71.2 percent in 2000 to 67.2 percent in 2014. This trend reflected a broader move by many countries to broaden their corporate tax bases, often as a trade-off for lower statutory corporate income tax rates.
However, a notable reversal occurred, with recovery rates increasing from 2018 onwards, driven by policy responses to economic downturns and increased international tax competition. The COVID-19 pandemic further accelerated this trend, prompting many countries to introduce temporary accelerated depreciation measures. After a slight dip to 68.8 percent in 2024, the average OECD recovery rate rebounded to 70.1 percent in 2025. This latest surge was primarily propelled by the reinstatement of full expensing in key economies like Canada and the United States, alongside enhanced capital allowances in Germany and New Zealand.
When weighted by GDP, the average OECD capital cost recovery rate followed a similar trajectory but was consistently lower than the simple average until 2025. This indicated that larger economies historically had less generous capital allowance regimes. However, in 2025, the weighted average surged from 67 percent in 2024 to 79.2 percent, reflecting the substantial impact of the US and Canada extending full expensing provisions across a wide range of assets. This shift moved Canada and the United States to 5th and 3rd place, respectively, in the ranking of countries offering the best treatment of capital investment, signaling a significant policy shift in major economies.
Concurrently, statutory corporate income tax rates have seen a pronounced global decline over the past quarter-century. The average OECD statutory rate fell to approximately 23.9 percent in 2024, with a slight increase to 24.2 percent in 2025. The GDP-weighted average corporate income tax rate also decreased, notably between 2017 and 2018 due to the significant cut in the US corporate income tax rate, settling at around 26.6 percent in 2025. This trend, where GDP-weighted average rates remain consistently higher than the simple average, suggests that larger economies tend to maintain higher corporate tax rates, contrasting with their historical less generous capital allowance policies. The combination of declining statutory rates and a broadening of tax bases (through lower capital allowances) explains why corporate tax revenues often remained stable or grew despite rate reductions, as governments sought to maintain fiscal stability.
Spotlight on Key OECD Nations: Policy Approaches and Outcomes
The diverse approaches to capital cost recovery across the OECD are best understood through specific country examples:
Estonia and Latvia: The Cash-Flow Tax Model
These two Baltic states have pioneered a unique cash-flow tax system, replacing traditional corporate income tax structures. Instead of taxing profits annually with complex depreciation schedules, their corporate income taxes (22% in Estonia, 20% in Latvia) are levied only when profits are distributed to shareholders. This system inherently treats capital investment as fully expensed, as capital costs immediately reduce profits in the year of investment. This not only simplifies tax compliance but also strongly incentivizes businesses to reinvest their earnings within the firm, fostering new capital formation and economic growth. Both countries achieve a 100 percent capital cost recovery rate, making them leaders in promoting investment through their tax systems.
United States: Permanent Full Expensing and its Economic Dividend
The US tax code, after periods of fluctuating policies, has moved towards significantly improved capital cost recovery. In 2025, the US averages 94.5 percent cost recovery, substantially above the OECD average. This is primarily due to the permanent full expensing adopted for machinery. While the temporary bonus depreciation from the 2017 Tax Cuts and Jobs Act (TCJA) began phasing out in 2023, its permanent reinstatement in 2025 marks a landmark policy decision. Additionally, temporary 100 percent expensing for qualifying structures (covering a significant portion of industrial buildings) for construction initiated between January 2025 and January 2029 further boosts investment. The OECD, in its 2018 Economic Survey of the United States, anticipated that this policy "will likely give a substantial boost to investment activity," a prediction borne out by subsequent studies. Research indicates the TCJA increased US companies’ capital expenditures by 0.2 percent to 0.4 percent of total assets, and a 2024 study found that the corporate rate reduction and full expensing led to a 20 percent increase in domestic investment for affected companies. Tax Foundation estimates suggest permanent full expensing for equipment and machinery will raise long-run GDP by 0.6 percent and increase the capital stock by 1 percent.
United Kingdom: From Super-Deduction to Permanent Full Expensing
The UK has also navigated a complex path to enhancing capital allowances. From April 2021 to March 2023, a "super-deduction" allowed businesses to deduct 130 percent of plant and equipment costs, a measure designed to soften the impact of an impending corporate tax rate hike from 19 percent to 25 percent. The 2023 Spring Budget replaced this with 100 percent full expensing, placing the UK among the top-tier nations for machinery cost recovery. The budget also extended a 50 percent first-year allowance for "integral features" and "long-life items" and made the Annual Investment Allowance (AIA), offering 100 percent first-year relief for up to GBP 1 million in plant and machinery, a permanent feature. Crucially, the 2023 Autumn Statement made full expensing permanent, averting a return to an 18 percent declining balance allowance that would have significantly reduced recovery rates. Simulations estimate that permanent full expensing could raise UK GDP by 0.9 percent, investment by 1.5 percent, and wages by 0.8 percent.
Canada: Strategic but Temporary Expensing
In response to US policies, Canada implemented temporary full expensing for machinery and equipment used in manufacturing, processing, and clean energy investments. These assets can be fully written off in the year of acquisition. Canada also adopted accelerated depreciation schedules for non-residential buildings and intangible assets, increasing first-year write-offs. While initially scheduled to phase out, these enhanced deductions were reinstated in 2025 and will remain until 2029, with a gradual phaseout until 2033. Immediate expensing was also introduced for specific high-tech assets acquired after April 15, 2024. While these reforms temporarily boost investment, their long-term economic benefits would be significantly higher if made permanent, as temporary measures primarily encourage bringing forward future investments rather than increasing the overall level of investment.
Lithuania: Embracing Full Expensing (Effective 2026)
Lithuania is set to join the ranks of countries offering permanent full expensing for machinery, equipment, software, and acquired rights, effective January 1, 2026. This forward-looking policy aims to significantly enhance its attractiveness for business investment.
Czech Republic and Slovakia: Unique Depreciation Methods
These countries employ specific accelerated depreciation methods alongside the straight-line method. For machinery, their unique approach involves a more complex calculation that yields faster write-offs in initial years. Despite the complexity, Slovakia (73.9 percent) and the Czech Republic (73.3 percent) maintain above-average capital cost recovery rates in the OECD.
Chile, Israel, and Mexico: Inflation-Adjustment for Capital Allowances
These three countries stand out for their unique provision allowing businesses to adjust capital allowances for inflation. This crucial feature mitigates the adverse effects of inflation on the real value of deductions, offering a partial form of neutral cost recovery and enhancing investment incentives, especially for long-lived assets.
The Imperative of Permanent and Comprehensive Capital Allowances
While the global trend of reducing statutory corporate income tax rates has been important in mitigating distortionary effects, neglecting capital allowances overlooks a crucial tenet of sound tax policy. Insufficient capital allowances directly undermine incentives to invest, leading to a suboptimal capital stock, lower worker productivity, and ultimately, slower economic growth.
For robust and sustained economic growth, policymakers must prioritize more generous and, critically, permanent capital allowances. Permanency provides the certainty essential for long-term investment decisions, allowing businesses to plan with confidence. As seen with Canada’s temporary measures, while they offer short-term boosts, their long-term economic impact is constrained compared to permanent reforms like those adopted in the US and the UK.
Furthermore, the pervasive challenge of inflation and high interest rates necessitates a re-evaluation of how capital allowances are structured. The current rarity of inflation-adjusted systems among OECD countries means that many businesses operate under tax regimes that penalize long-term investment in inflationary environments.
To steer the global economy towards a trajectory of sustained growth, policymakers must champion tax reforms that embrace generous and permanent capital allowances. Such policies will not only spur real investment but also foster innovation, drive productivity growth, and enhance global competitiveness, laying a stronger foundation for future prosperity.
