Business tax deadline calendar generator
Create a planning calendar for entity, payroll, sales-tax, estimated-tax, state, and information-return obligations.
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Results update as you change the inputs.
Directional deadline checklistSchedule C / individual estimated-tax review — State footprint to confirm
- Core filing path
- Schedule C / individual estimated-tax review
- State footprint
- State footprint to confirm
- Frequency reminder
- Quarterly payroll/sales-tax review
- Month-by-month checklist
- Sep: build year-end close, reconcile books, and gather prior returns | Oct: review payroll, 1099/K-1 data, state accounts, and estimated payments | Nov: prepare entity return workpapers and confirm extension/payment cash | Dec: fiscal-year close; preserve signed return, payment and authorization records | Jan: check federal/state filing acceptance and reconcile liabilities | Feb: quarterly payroll/sales-tax filing and deposit review | Mar: estimated-tax projection and next installment reminder | Apr: extension reminder—an extension generally changes filing time, not payment time | May: review foreign/information returns and beneficiary statements | Jun: midyear books, payroll, nexus, and state registration check | Jul: forecast cash for tax, payroll, sales tax, and retirement contributions | Aug: archive confirmations and start next-year deadline file
- Extension/payment reminder
- Confirm whether an extension or payment reminder is needed.
- Payroll
- Add deposit schedule, Form 941/940, W-2/W-3 and state payroll filings to each applicable month.
This generator creates planning prompts, not legal deadlines. Exact dates depend on tax year, fiscal year, filing frequency, state agency, extension, payment method and filing history. Confirm every date with the governing agency or adviser.
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Use the estimate to ask a better question.
Bring the assumptions, your records and the result to a tax professional before acting on a material tax or retirement decision.