Most delays with annual financial statements come down to a few missing documents. Work through this list when your financial year ends and your statements can be done in weeks, not months.
Bank and money
What you own and what you owe
People and tax
Company records
Compiled, reviewed or audited
Which level your company needs depends on its public interest score and its memorandum of incorporation. Most owner-managed companies need compiled statements. Some need an independent review, and a few need a full audit by an IRBA registered auditor. Your accountant should work out the score with you every year.
General information, correct as at the date above. It is not tax advice for your situation. Plumbline is a fictional firm on a CodeLab One concept website.