What Self-Assessment items can be stoodover by HMRC?

A stand over can be used to postpone certain Self-Assessment payments due to HMRC. There are two types of stand over payments, a formal stand over and an informal stand over.
A formal stand over is used to stand over any Self-Assessment charge against which a postponement application may legally be made.
Formal stand overs may be made against SA charges arising from a:
Revenue assessment
Revenue amendment
Jeopardy amendment
There is no legal right to formally postpone charges arising
Jeopardy amendments

A jeopardy amendment can be made to a taxpayer’s Self-Assessment return as part of an S9A general enquiry. A jeopardy amendment should only be made where an HMRC officer believes there is an imminent risk of a loss of tax to the Crown unless the assessment is amended at once. i.e., the tax due is in jeopardy. For example, the officer may become aware that the taxpayer has plans to leave the country or is disposing of assets.
A jeopardy amendment may be made where:
The taxpayer type is
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