It’s rare, but if we think that you’ve underpaid tax, we’ll let you know directly—we don’t notify HMRC.

We always recommend resolving any underpayment promptly. If HMRC finds it first, they may add interest and penalties.

To help you, we can provide a detailed fact sheet on how to handle underpayments.

And if you’re on one of our fully managed services, you’re covered by our Underpayment Guarantee: if you receive an unexpected tax bill that results directly from our error, we’ll cover the tax owed. (T&C’s available here).