If you are a UK landlord or property investor, you have likely considered whether your money is better placed in buy-to-let bricks and mortar or in a portfolio of stocks and shares. The answer is rarely straightforward, but the tax treatment of each can be a decisive factor. This article compares the tax rules for property investment versus equities for the 2025/26 and 2026/27 tax years, covering income tax, capital gains tax (CGT), allowances, and the major changes coming in April 2027.
How Is Income from Property Taxed?
Rental income from a buy-to-let (BTL) property is taxed as property income. For the 2025/26 tax year, this is added to your other income and taxed at your marginal income tax rates: 20% (basic), 40% (higher), or 45% (additional) [1]. However, a major change takes effect from 6 April 2027. From that date, property income will be taxed at separate rates: 22% for basic rate, 42% for higher rate, and 47% for additional rate taxpayers [1]. This means property income will no longer be blended with your salary or other earnings for tax purposes.
You can deduct allowable expenses such as letting agent fees, repairs, insurance, and mortgage interest (subject to Section 24 restrictions) before calculating your taxable profit. For a detailed list of what you can claim, see our guide on landlord tax deductions.
How Is Income from Stocks and Shares Taxed?
Income from stocks and shares typically comes in two forms: dividends and interest. Dividends are taxed at 8.75% (basic), 33.75% (higher), and 39.35% (additional) for the 2025/26 tax year, with a £500 dividend allowance [1]. Interest from bonds or savings accounts is taxed at your marginal income tax rate, but the personal savings allowance (£1,000 for basic rate, £500 for higher rate) can reduce the tax bill.
Critically, investments held within an Individual Savings Account (ISA) are completely tax-free on both income and capital gains. This is a significant advantage over property, where no equivalent tax wrapper exists for rental income.
Capital Gains Tax: Property vs Shares
Capital Gains Tax (CGT) is payable on the profit when you sell an asset that has increased in value [2]. It is the gain, not the total sale proceeds, that is taxed [2]. For UK residential property, the CGT rates are 18% for basic rate taxpayers and 24% for higher rate taxpayers [1]. The annual exempt amount for 2025/26 is £3,000 [1].
For shares and other assets (excluding property), the CGT rates are lower: 10% for basic rate and 20% for higher rate taxpayers [2]. This means selling shares is generally more tax-efficient than selling a rental property, assuming the same level of gain. You can also deduct certain costs of buying or selling shares, such as stockbrokers' fees and Stamp Duty Reserve Tax (SDRT) [3].
If you sell shares that have become worthless or of negligible value, you may be able to claim a loss to reduce your CGT bill [3]. This is not directly available for property in the same way, though capital losses on property can be offset against property gains.
Allowances and Reliefs: A Side-by-Side Comparison
Property investors benefit from several reliefs that share investors do not. Principal Private Residence (PPR) relief means no CGT is due on the sale of your main home, even if you have let it out for part of the time. For a full breakdown, see our guide on PPR relief for landlords. Additionally, the £3,000 CGT annual exempt amount applies to both property and shares, but property gains are taxed at higher rates.
Share investors have the ISA allowance (£20,000 per year for 2025/26), which shelters both income and gains from tax entirely. There is no equivalent for rental property. Pension contributions also offer tax relief on the way in, which can be used to invest in shares or funds.
The Impact of Section 24 on Property Investors
Section 24 of the Finance (No.2) Act 2015 restricts mortgage interest relief for individual landlords. You can no longer deduct mortgage interest from your rental income to reduce your tax bill. Instead, you receive a basic rate tax credit (20%) on the interest paid. This has pushed many higher-rate landlords into paying more tax on their rental income. For a complete explanation, read our Section 24 guide.
This restriction does not apply to shares. If you borrow to invest in shares (e.g., through a margin account), the interest is not generally deductible for individuals. However, for companies, interest on loans to purchase shares may be deductible, subject to certain rules.
Corporation Tax: Property in a Limited Company
Many landlords have incorporated their property portfolios into a limited company to avoid Section 24 and benefit from lower corporation tax rates. For the 2025/26 tax year, corporation tax is 19% on profits up to £250,000 and 25% on profits above that [1]. This compares favourably to the 40% or 45% marginal income tax rates that individual landlords may face.
However, extracting profits from a company (via dividends) incurs further tax. Dividends are taxed at the rates mentioned earlier, and the company must pay corporation tax on its rental profits first. For a detailed analysis, see our buy-to-let limited company guide.
Shares held within a company are also subject to corporation tax on gains, but the rates are generally lower than individual CGT rates on property.
Borrowing and Risk: Tax Implications
Property investment typically involves higher mortgage borrowing than share investing. The tax treatment of interest differs significantly. For property, Section 24 limits relief to 20% for individuals. For shares, interest on borrowing to invest is not deductible for individuals, but may be for companies.
High-risk investments like cryptocurrencies, contracts for difference (CFDs), and mini-bonds carry a risk of total loss [4]. Property is generally considered lower risk, but it is illiquid and subject to market downturns. The FCA advises that investing over a short time frame (under three years) is better suited to savings accounts, while a longer-term view (over five years) may justify higher-risk investments [4].
Making Tax Digital (MTD) for Landlords
From 6 April 2026, Making Tax Digital for Income Tax becomes mandatory for landlords with gross property income over £50,000 [1]. This means you must keep digital records and submit quarterly updates to HMRC. The threshold drops to £30,000 from April 2027 and £20,000 from April 2028. For share investors, MTD applies only if you are self-employed or a landlord; it does not apply to passive investment income from shares held personally.
For more on what this means for you, read our MTD for landlords guide.
Practical Example: Comparing Tax Bills
Consider a landlord with a BTL property generating £20,000 in rental income and £10,000 in mortgage interest. Under current rules (2025/26), after Section 24, their taxable profit is £20,000 (no interest deduction), and they receive a 20% tax credit on the £10,000 interest (£2,000). If they are a higher-rate taxpayer, they owe 40% on £20,000 (£8,000) minus the £2,000 credit = £6,000 tax.
Now consider an investor with £20,000 in dividends from shares. With the £500 dividend allowance, taxable dividends are £19,500. At the higher rate (33.75%), the tax is approximately £6,581. However, if those shares are held in an ISA, the tax is £0. The ISA advantage is clear.
Which Investment Is More Tax-Efficient?
For most individual investors, stocks and shares held within an ISA are significantly more tax-efficient than direct property investment. The ability to shelter both income and gains from tax, combined with lower CGT rates on shares, makes equities attractive. However, property offers tangible assets, potential for capital appreciation, and the ability to use mortgage borrowing to amplify returns, albeit with higher tax costs due to Section 24.
For higher-rate taxpayers, incorporating a property portfolio into a limited company can reduce the overall tax burden, but this comes with additional administrative costs and complexity. For a full overview of property tax, see our property investment tax guide.
Key Takeaways
- Rental income is taxed at your marginal rate until April 2027, then at separate property income rates (22%/42%/47%).
- Dividend income is taxed at lower rates (8.75%/33.75%/39.35%) and benefits from a £500 allowance.
- CGT on property is 18%/24%, while CGT on shares is 10%/20%.
- ISAs offer complete tax shelter for shares; no equivalent exists for rental property.
- Section 24 restricts mortgage interest relief for individual landlords, making property less tax-efficient than before.
- Incorporation can reduce tax on property profits but adds complexity.
Ultimately, the best choice depends on your personal circumstances, risk tolerance, and investment horizon. We recommend speaking to a specialist property accountant to model your specific situation. You can contact our team for tailored advice.