Box 136. Withholdings and payments on account [Form 036]
Form 036: Box 136. Modification of data relating to withholdings and payments on account. (Page 6)
Box 136 is linked to the census data on page 7 of form 036, which are those that most commonly vary in relation to the obligation to withhold or pay on account.
In this regard, it is advisable to take into account who is required to withhold or pay, what income is subject to withholding or payment on account and the forms that must be used to declare. Information on all these aspects can be found in the "Withholdings and payments on account" section of this guide.