Invaro Accounting Compliance Calendar
Tax & Filing Deadlines — Free, No Login Required
October 2025
4 deadlines this month
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Extended Individual Return Due (Form 1040)
federalextension
Extended C-Corporation Return Due (Form 1120)
federalextension
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Payroll Tax Return Q3 2025 (Form 941)
federalpayroll
FUTA Tax Deposit (If Over $500)
federalpayroll
1
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Payroll Tax Return Q3 2025 (Form 941)
Oct 31, 2025 • Friday
+
federal-tax
payroll
FUTA Tax Deposit (If Over $500)
Oct 31, 2025 • Friday
+
federal-tax
payroll
Extended Nonprofit Return Due (Form 990)
Nov 17, 2025 • Monday
+
federal-tax
extension
Corporation Q4 2025 Estimated Tax
Dec 15, 2025 • Monday
+
federal-tax
estimated
Q4 2025 Estimated Tax Payment
Jan 15, 2026 • Thursday
+
federal-tax
estimated