My fault vs Sorry about that

When to use each in English, with meaning, register, and examples.

My fault

Top 1,000 (very common)

Sorry about that

Top 2,000 (common)
Most common: My fault
 My faultSorry about that
Pronunciation🇬🇧 //maɪ fɔːlt//🇺🇸 //maɪ fɔlt//🇬🇧 //ˈsɒri əˈbaʊt ðæt//🇺🇸 //ˈsɔri əˈbaʊt ðæt//
MeaningIt's my mistake.An expression of apology for a mistake or inconvenience.
ExampleI forgot to send the email. It's really my fault.I'm so sorry about that, I didn't mean to spill your drink.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
Collocationstake responsibility, admit my fault, own up to my faultsorry about that mistake, sorry about that delay, sorry about that accident, sorry about that confusion, sorry about that interruption
Antonymsyour fault, their fault, not my fault-
Common mistakes'My fault' is often confused with 'not my fault' when denying responsibility., Learners might say 'it's my fault' when it should be 'that's my fault'.Using it for serious offenses; it's too casual., Forgetting to provide a reason for the apology., Not using it in the right tone; it can sound insincere if not expressed well.
Usage notesUsed to accept responsibility for a mistake. Appropriate in both casual and formal settings. Avoid in overly casual situations, as it may seem insincere.Use 'sorry about that' to apologize for minor issues. It is appropriate in casual and semi-formal contexts, but avoid in very formal situations.

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My fault
Sorry about that

Frequently asked questions: My fault vs Sorry about that

What's the difference between My fault and Sorry about that?

My fault: It's my mistake. Sorry about that: An expression of apology for a mistake or inconvenience.

Which is more common: My fault and Sorry about that?

My fault is the most common in everyday English.

Can you show an example of each?

My fault: I forgot to send the email. It's really my fault. Sorry about that: I'm so sorry about that, I didn't mean to spill your drink.

Can I use My fault and Sorry about that interchangeably?

Not always. My fault and Sorry about that are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.