An Israeli company has three recurring obligations: an annual tax return accompanied by audited financial statements, an annual report to the Registrar of Companies, and periodic filings through the year for VAT, withholding and payroll where applicable. All apply from the first year, including a year with no activity.
Yes. Filing obligations do not depend on activity, and dormant years left unfiled accumulate.
Voluntary liquidation is possible and is sometimes the right answer for a genuinely inactive company. It is a process with its own requirements.
A certified public accountant licensed in Israel. It is a statutory requirement rather than a matter of preference.