Company: AHL
Filing Date: 2025-05-08
Form Type: 424B4
Source: 0001628280-25-023859
Chunk: 466

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-08
Form: 424B4
Chunk 466
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 valuation allowance of $107.7 million.

(4) Current tax expense and deferred tax (benefit) in “Other” relates to the branches of Aspen UK and Aspen Bermuda Limited.

As noted above, the tax rate in Bermuda, the Company’s country of domicile, is currently zero. Application of the statutory income tax rate for operations in other jurisdictions produces a differential to the expected income tax (benefit)/expense as shown in the table below. The reconciliation between the income tax (benefit) and the amount

<div align='center'>F-56</div>

that would result from applying the statutory rate for the Company for the twelve months ended December 31, 2024, 2023 and 2022 is provided in the table below:

| Income Tax Reconciliation                                |     | Twelve Months Ended December 31, 
 2024                             
 ($ in millions)                  |        |     | 2023 |        |     | 2022 |       |
|:---------------------------------------------------------|:----|:---------------------------------|-------:|:----|:-----|-------:|:----|:-----|------:|
| Income tax benefit at statutory tax rate of zero percent |     | $                                |      — |     | $    |      — |     | $    |     — |
| Overseas statutory tax rates differential                |     |                                  |   88.1 |     |      |   56.3 |     |      |  16.8 |
| Base erosion and anti-abuse tax (BEAT) expense           |     |                                  |    0.2 |     |      |    0.9 |     |      |   2.3 |
| Prior year adjustments(1)                                |     |                                  |   -5.9 |     |      |    6.9 |     |      |  -2.9 |
| Introduction of Bermuda corporate income tax             |     |                                  |    2.2 |     |      | -201.1 |     |      |     — |
| Change in valuation allowance(2)                         |     |                                  | -106.6 |     |      |    4.0 |     |      | -98.9 |
| Impact of unrecognized tax benefits(3)                   |     |                                  |      — |     |      |      — |     |      |     — |
| Australian non-resident withholding tax                  |     |                                  |      — |