Generally, yes. A domestic C-Corp usually files Form 1120 even if it had no taxable income. If your startup is incorporated in Delaware, check the state’s annual report and franchise tax separately. The federal return and Delaware filing are two different tasks. IRS Form 1120 instructions · Delaware annual reporting
Start by looking at what moved through the company. Did a founder pay the incorporation fee, put money into the bank account, or buy software for the team? Those transactions belong in your records even if you never invoiced a customer. If an owner is foreign, flag any transactions between that owner and the company for a separate Form 5472 review. IRS recordkeeping guidance · IRS Form 5472 instructions
Delaware’s notice uses the Authorized Shares Method. If you authorized a large number of shares, compare that amount with the Assumed Par Value Capital Method. The comparison uses figures from your cap table and books, including issued shares and gross assets. See TaxHero’s Delaware franchise tax guide and the state’s calculation instructions.
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