2021 Tax Deadlines For C-Corp Startups
The most important tax deadlines in 2021 for C-Corporation (C-Corps) are the April 15th federal Form 1120 tax return, which can be extended to October 15th, and the March, June, Sept and December Delaware Franchise estimated payments. See our detailed calendar below for other, important dates or download our ical to add the dates to your calendar.
Click the Links to Learn More About These Filings and 2021 Startup C-Corp Tax Deadlines
How Much Does a Startup Tax Return Cost? Try Kruze Consulting’s Tax Preparation Pricing Tool.
- FEB 1: Send 1099's to Contractors. Send W2's to Employees. 1099-MISC for nonemployee compensation must also be e-filed to IRS on this date.
- FEB 1: File Form 8809 for a 30-day extension to file W2's and 1099-MISC for nonemployee compensation.
- FEB 1: Send 1095-B and 1095-C forms to Employees.
- FEB 1: Claim R&D Tax Credits on Form 941, and file annual FUTA return on Form 940.
- MAR 1: IRS ACA Compliance 1094-B , 1095-B, 1094-C and 1095-C filings are due (if paper-filing, due MAR 31 if eFiling). File Form 8809 for a 30-day extension.
- MAR 1: Delaware Annual Franchise Report filing deadline: Pay a min. of $400, +more if you have significant funding. You can estimate this franchise tax using our Delaware Franchise Tax Calculator.
- MAR 2: IRS 30-day automatic extension: provide Form 1095-B and Form 1095-C to Employees.
- MAR 31: IRS ACA Compliance 1094-B , 1095-B , 1094-C and 1095-C filings are due (eFile).
- MAR 31: 1099's and W2's must be e-filed with the IRS by this due date.
- APR 15: C Corp Form 1120 Tax Return due. The Federal Form 1120 is the U.S. Corporation Income Tax Return, which the IRS has companies use to report their income, losses, credits, etc. and to figure the income tax liability of the corporation. Can extend the deadline to OCT 15.
- APR 15: File the R&D Tax Credit Form 6765 with your tax return. Can extendto OCT 15. We strongly recommend working with a qualified CPA to prepare this form in conjunction with your Form 1120 if you are a high-growth startup - if your company is going to be acquired by a major technology company, that company's CFO will use a strong tax team to do due diligence on this.
- APR 15:Federal Quarterly Estimated Tax1st installment
- APR 30: Claim R&D Tax Credits on Form 941.
- JUN 1: Delaware Quarterly Estimated Franchise Tax, Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000)
- JUN 15: Federal Quarterly Estimated Tax2nd installment
- AUG 2: Claim R&D Tax Credits on Form 941.
- SEP 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
- SEPT 15: Federal Quarterly Estimated Tax3rd installment
- OCT 15: C Corp Form 1120 Tax Return final due date if extension was filed.
- NOV 1: Claim your Research and Development Tax Credits on Form 941.
- DEC 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
- DEC 15: Federal Quarterly Estimated Tax4th installment
The 8 Most Important Startup Tax Deadlines
It’s unfortunate, but even early-stage, just founded companies can have compliance and regulatory filing requirements. And like it or not, it is very important to keep your company in compliance, because when that venture capital term sheet comes, or the M&A due diligence starts, you really want to make sure that you’re not sending negative signals and don’t do anything that might delay that transaction. Additionally, you open your company up to a lot of potential regulatory issues - you can lose your corporation, or get hit with a bunch of penalties or extra paperwork - things that can distract you from building your company.
So here are the most important compliance deadlines to keep track of:
- W2’s to employees
- 1099’s to all contractors
- Delaware Franchise Fee
- State Franchise Fees
- Federal & State Returns/Filings
- R&D Credit and related Studies
- Municipal or City Filings
- Sales Tax
Obviously this is a long list. But compliance really is a big deal. On average, one to three of our clients are acquired each and every month, and we know the types of questions that the accounting firms at big, public companies are going to ask about (you can access our free due diligence checklist here). And compliance is a big one! Don’t let a life-changing transaction get sidetracked by these types of issues. Of course, we recommend working with an experienced CPA like Kruze - talk to us now.
2020 Tax Compliance Deadlines For Delaware C-Corp Startups
2020 tax deadlines are supplied for reference purposes only, and should not be used when making decisions in 2021 or beyond. Always consult your tax professional, and see our disclaimer below. These are for Delaware C-Corporations.
- JAN 31: Send 1099’s to Contractors. Send W2’s to Employees. 1099-MISC for nonemployee compensation must also be e-filed to IRS on this date.
- JAN 31: File Form 8809 for a 30-day extension to file W2’s and 1099-MISC for nonemployee compensation.
- JAN 31: All US startups must send1095-B and 1095-C forms to Employees.
- JAN 31: Claim R&D Tax Credits on Form 941, and file annual FUTA return on Form 940.
- FEB 28: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due (if paper-filing, due APR 1 if eFiling). File Form 8809 for a 30-day extension.
- MAR 1: Delaware Annual Franchise Report filing due: Pay a min. of $400, +more if you have significant funding.
- MAR 2: IRS 30-day extension: provide Form 1095-B and Form 1095-C to Employees.
- APR 1: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due (eFile).
- APR 1: 1099’s and W2’s must be e-filed with the IRS by this deadline.
- APR 15: C Corp Form 1120 Tax Return due. Can extend to OCT 15. Even with COVID, if your business has filed an extension, the C Corp deadline is October 15, 2020.
- APR 15: File the R&D Tax Credit Form 6765 with your tax return. Can extend the deadline to OCT 15.
- APR 30: Claim R&D Tax Credits on Form 941.
- JUN 1: Delaware Quarterly Estimated Franchise Tax, Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000).
- JUL 31: Claim R&D Tax Credits on Form 941.
- SEP 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000).
- OCT 15: C Corp Form 1120 Tax Return final tax deadline date if extension was filed. This is the final deadline for a C Corp Form 1120 Tax Return, even with the delays created by COVID.
- NOV 2: Claim your R&D Tax Credits on Form 941.
- DEC 1: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000)
How Much Does a Startup Tax Return Cost? Try Kruze Consulting Tax Preparation Pricing Tool.
If your Delaware C-Corp funded startup needs tax help contact us today!
2019 Tax Compliance Deadlines For Delaware C-Corp Startups
2019 tax deadlines are supplied for reference purposes only, and should not be used when making decisions in 2020 or beyond. Always consult your tax professional, and see our disclaimer below. These are for Delaware C-Corporations.
- JAN 31: Send 1099’s to Contractors. Send W2’s to Employees. 1099-MISC for nonemployee compensation must also be e-filed to IRS on this date.
- JAN 31: All C-Corps must send 1095-B and 1095-C forms to Employees.
- JAN 31: Claim R&D Tax Credits on Form 941 , and file annual FUTA return on Form 940.
- FEB 28: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due (if paper-filing, due APR 1 if eFiling).
- MAR 1: Delaware Annual Franchise Report filing due: Pay a min. of $400, +more if your startup C-Corp has significant funding.
- MAR 1: IRS 30 day extension to provide Form 1095-B and 1095-C form’s to Employees.
- APR 1: IRS ACA Compliance 1094-B, 1095-B, 1094-C and 1095-C filings are due (eFile).
- APR 1: 1099’s and W2’s must be e-filed with the IRS by this deadline for all C-Corps.
- APR 15: C Corp Form 1120 Tax Return due. Can extend to Oct 15.
- APR 15: File the R&D Tax Credit Form 6765 with your startup’s tax return. Can extend the deadline to OCT 15.
- APR 30: Claim R&D Tax Credits on Form 941.
- JUN 3: Delaware Quarterly Estimated Franchise Tax, Pay 40% of estimated annual amount (if annual amount expected to exceed $5,000) - this is an important date for Delaware C-Corps.
- JUL 31: Claim R&D Tax Credits on Form 941.
- SEP 2: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000); another important date for startups incorporated in Delaware.
- OCT 15: C Corp Form 1120 Tax Return final tax deadline date if extension was filed.
- OCT 31: Claim your R&D Tax Credits on Form 941.
- DEC 2: Delaware Quarterly Estimated Franchise Tax, Pay 20% of estimated annual amount (if annual amount expected to exceed $5,000) - take note Delaware C-Corps.
