Capital gains tax receipts surged 73 percent in early 2026, with HMRC collecting £19.7 billion in January and February alone. The frozen annual exempt amount (AEA) - the threshold below which you owe no CGT - is dragging more property investors into the tax net.

The Numbers Tell the Story

HMRC's self-assessment data shows the dramatic impact of frozen tax thresholds on property investment returns. The annual exempt amount sits at £3,000, frozen since April 2024. This static threshold means every year of inflation erodes its real value, pulling more investors across the line where they must pay capital gains tax (CGT).

The January and February 2026 figure of £19.7 billion represents self-assessment payments for the 2024/25 tax year. To contextualise this spike: HMRC collected £13.06 billion in the entire 2024/25 tax year, £14.50 billion in 2023/24, and £16.93 billion in 2022/23. The two-month total nearly matches a full year's historical revenue, signalling exceptional activity ahead of anticipated tax changes.

Wealth managers attribute part of this surge to investors bringing forward property sales before further tax rate increases took effect. The October 2024 Budget revised CGT rates, motivating some investors to crystallise gains earlier rather than later.

What This Means for Your Property Gains

For property investors, the frozen £3,000 threshold creates a ratchet effect. Consider a straightforward example. You sell a buy-to-let property and realise a £25,000 gain. With the £3,000 AEA, your taxable gain is £22,000. At the basic rate (18%), your liability sits at £3,960. At the higher rate (24%), it reaches £5,280.

Now imagine inflation continues at 2-3 percent annually. In five years, that same £25,000 gain represents proportionally smaller real wealth, yet the frozen £3,000 threshold becomes even less generous. Meanwhile, property values and rental income typically move with inflation, meaning gains grow whilst the tax allowance does not.

This is not a one-off surge, but structural pressure building on property investors. Frozen thresholds combined with inflation create what accountants call "fiscal drag" - where nominal growth pushes gains into higher tax brackets despite flat real growth.

What to Watch

The pattern of threshold freezes extends beyond CGT. Income tax thresholds and other allowances remain frozen until 2028, affecting millions of workers and investors across the UK. Property investors face a particular squeeze because property-linked returns (capital gains, rental income) often grow with inflation, yet tax allowances do not.

Speak to your accountant about timing disposals strategically. If you are considering selling property assets in the coming years, the timing of those sales can materially affect your personal tax position. Some investors benefit from spreading gains across multiple tax years; others may find it advantageous to crystallise gains whilst allowances are still relatively generous by historical standards.