Deadline planner
Sales tax, payroll returns, licence renewals, insurance. These arrive on a schedule and the penalty for missing one is automatic — it doesn't matter that you were busy.
Local rules shown for Sunnyvale, CA (Santa Clara County). State and federal rules apply wherever you open.
Next deadline in 17 days
Oct 31, 2026 · California Dept. of Tax & Fee Administration
Report what you sold and pay the tax you collected. Due even if you made no sales.
If you miss it: 10% of what's owed, plus 10% more for every month late.
Oct 31, 2026 · California Dept. of Tax & Fee Administration · repeats quarterly
Report what you sold and pay the tax you collected. Due even if you made no sales.
If you miss it: 10% of what's owed, plus 10% more for every month late.
Official sourceNov 14, 2026 · Santa Clara County Environmental Health · repeats monthly
Kitchens must keep the interceptor working and keep the pump-out receipts.
If you miss it: Fines and enforcement orders on repeat failures.
Official sourceDec 10, 2026 · Santa Clara County Treasurer · repeats annual
Two instalments a year on business property, if you're assessed any.
If you miss it: 10% of the instalment plus a $10 charge.
Official sourceApr 1, 2027 · Santa Clara County Assessor · repeats annual
Declares the equipment and stock you hold so property tax can be assessed.
If you miss it: Penalty assessment for failing to file when asked.
Official sourceApr 15, 2027 · California FTB · repeats annual
LLCs and corporations owe this every year, whether you made money or not.
If you miss it: $800 plus a 5% penalty and monthly charges on any balance.
Official sourceJun 30, 2027 · California ABC · repeats annual
Licences expire on June 30 unless the renewal is filed and paid.
If you miss it: Late fees, and you must stop selling alcohol.
Official sourceOct 14, 2027 · City of Sunnyvale · repeats annual
Your permission to operate renews every year on your own anniversary.
If you miss it: Penalties and interest, and the city can revoke the certificate.
Official sourceOct 14, 2027 · Santa Clara County Environmental Health · repeats annual
Food premises must hold a current permit, displayed where customers can see it.
If you miss it: Operating without a permit can close the business.
Official sourceOct 14, 2027 · Your insurer · repeats annual
Liability and workers' cover lapse if the premium isn't paid — and a lapse is your problem, not your insurer's.
If you miss it: A gap in cover means you pay any claim yourself.
Official sourceOct 14, 2027 · Sunnyvale Fire Department · repeats annual
Extinguishers need annual servicing and must stay accessible and tagged.
If you miss it: Red tags and correction orders; the fire side can block your opening.
Official sourceOct 14, 2028 · California Secretary of State · repeats biennial
Keeps your registered address and officers on file. Corporations file every year; LLCs every two.
If you miss it: $250 fine and your entity can be suspended.
Official sourceOct 14, 2029 · Santa Clara County Environmental Health · repeats triennial
Food handler cards are valid for three years.
If you miss it: Anyone working without a current card puts the permit at risk.
Official sourceNothing here is a substitute for the notice the agency sends you. Put the dates in the calendar you actually look at — and set a reminder a month ahead, because most of these take two weeks of gathering paperwork.
General information only, not tax or legal advice. Dates here are written from general knowledge and have not been confirmed with each agency — check the official source before you rely on one.
