Key requirements
Tax is normally due one month after the accounting period. A 5% penalty can apply to unpaid declared or estimated tax and certain additional amounts in F7 corrections. Continued arrears under the stated sixty-day trigger can attract additional 2% per month, capped at 50% of unpaid tax. Filing an actual return may revise estimated tax and the associated penalty but does not settle the resulting balance. IRAS can appoint agents to recover arrears, take legal action and impose travel restrictions on relevant sole proprietors or partners. Check the account and payment notice, including the original correction period, before deciding that a recent filing avoids all penalties.
Official source
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