Many branch finance or bosses think it is necessary for the head office to do the audit, so there is no need for the branch to participate. This view is definitely wrong, not because it is a branch, so there is no need to make an audit report. Even if you really don't need to do tax and financial auditing, but the internal audit of the head office, in other words, internal audit, then the branch office must do auditing (self-inspection, of course, provided that if the head office allows it, you don't have to find an external auditing company to audit).
Speaking of the head office, it involves another question, whether the accounts of the head office and the accounts of the branches are merged or independent. If it is a merger, as long as the head office has reviewed it, then the branch office can not review it. But the accounts are independent and separate from the accounts of the head office, so the branches must audit them.
Generally speaking, the head office needs to do financial and tax audits. Sometimes not only these two reports, but also other reports may be involved. Of course, if there is no requirement from the head office and local authorities, they may not do it.