For small business owners, taxes can be stressful. You already have rent, payroll, suppliers and loans to manage, and a tax bill can feel like one more expense you’d rather put off. But paying late is almost always more expensive than paying on time, because the IRS adds penalties and interest to anything you owe.
This guide covers three practical ways to keep your company’s taxes on schedule, what happens if you’re late and where to get help if you can’t pay in full. It focuses on US federal taxes.
Quick answer: To pay business taxes on time, (1) know your filing and payment deadlines, (2) make quarterly estimated tax payments so you aren’t hit with one large bill, and (3) file on time even if you can’t pay in full, then set up a payment plan. The IRS failure-to-file penalty is 5% of unpaid tax per month, ten times the 0.5% monthly failure-to-pay penalty, so filing on time matters most.
Tip 1: Know Your Tax Deadlines
Your filing deadline depends on how your business is structured. For businesses that use the calendar year, the main federal income tax deadlines are:
| Business type | Federal return | Due date (calendar-year business) |
|---|---|---|
| Sole proprietor or single-member LLC | Schedule C with Form 1040 | April 15 |
| Partnership or multi-member LLC | Form 1065 | March 15 |
| S corporation | Form 1120-S | March 15 |
| C corporation | Form 1120 | April 15 |
If a due date falls on a weekend or legal holiday, it moves to the next business day. Businesses with a fiscal year follow the same pattern based on their year-end. For example, C corporations file by the 15th day of the fourth month after their tax year ends.
Don’t forget your other tax obligations:
- Payroll taxes. If you have employees, you must deposit withheld income tax, Social Security and Medicare taxes on a monthly or semiweekly schedule and file quarterly payroll returns (usually Form 941).
- Sales tax. Most states require businesses to collect and remit sales tax on a monthly, quarterly or annual schedule.
- State income and franchise taxes, which have their own deadlines.
Make it easy: Put every deadline in a shared calendar with reminders two weeks ahead, or use accounting software that tracks them for you.
Tip 2: Pay Estimated Taxes Throughout the Year
The US tax system is “pay as you go.” Instead of paying one big bill at filing time, most profitable businesses pay estimated tax four times a year.
According to the IRS:
- Corporations generally must make estimated payments if they expect to owe $500 or more in tax for the year.
- Sole proprietors, partners and S corporation shareholders generally must make estimated payments if they expect to owe $1,000 or more when they file.
Estimated tax due dates (calendar year):
| Payment | Individuals and sole proprietors | Calendar-year corporations |
|---|---|---|
| 1st | April 15 | April 15 |
| 2nd | June 15 | June 15 |
| 3rd | September 15 | September 15 |
| 4th | January 15 (following year) | December 15 |
How to pay: You can pay through your IRS business tax account, IRS Direct Pay for businesses or the Electronic Federal Tax Payment System (EFTPS), which some business payments still require.
Make it easy:
- Move a set percentage of every payment you receive into a separate tax savings account.
- Review your profit each quarter and adjust your estimated payments if income rises or falls.
- Underpaying estimated tax can trigger its own penalty, so don’t skip a quarter.
Lower your tax bill legally
Paying on time is easier when your bill is accurate. Make sure you claim every deduction and credit you’re entitled to:
- Business travel. According to IRS rules, ordinary and necessary travel expenses are generally deductible when you travel away from your tax home overnight for business. This includes transportation, lodging and 50% of business meals. If a trip mixes business and personal days, only the business portion of most costs is deductible, and transportation costs within the US are deductible only if the trip is primarily for business. Keep receipts and notes on each trip’s business purpose.
- Research and development credits. US businesses that develop new or improved products or processes may qualify for the federal research credit. If your company operates in Canada, the SR&ED tax credit program offers similar incentives for scientific research and experimental development.
- Other common deductions include equipment (often through Section 179 expensing), home office costs, vehicle use, software and professional fees.
A good accountant can often save you more than their fee by finding deductions and credits you’d miss.
Tip 3: File on Time, Even if You Can’t Pay in Full
If cash is tight, the worst thing you can do is not file. The IRS charges two separate penalties, and the penalty for not filing is far larger than the penalty for not paying.
| Penalty | Rate | Maximum |
|---|---|---|
| Failure to file | 5% of unpaid tax per month or part of a month | 25% |
| Failure to pay | 0.5% of unpaid tax per month or part of a month | 25% |
Interest is also charged on unpaid tax and penalties. For returns more than 60 days late, there’s a minimum failure-to-file penalty. For Forms 1040 and 1120 due after December 31, 2025, it’s $525 or 100% of the unpaid tax, whichever is less.
So file on time, pay as much as you can and then deal with the balance.
If you can’t pay the full amount
- Set up a payment plan. Businesses can’t apply for a payment plan online. Instead, call the number on your IRS notice or the IRS business line at 800-829-4933. See IRS Publication 6103, Get Help with Tax Debt, for the plan types available.
- Ask about penalty relief. If your business has a clean record, you may qualify for the IRS first-time abate waiver. It can remove failure-to-file, failure-to-pay and failure-to-deposit penalties if you filed the same type of return on time for the previous three years and had no penalties in that period. Call the number on your notice or file Form 843 to request it.
- Request reasonable-cause relief if a disaster, serious illness or other event outside your control caused the delay.
- Talk to a tax professional if your debt is large or you’ve received collection notices.
What happens if you ignore a tax bill?
If you don’t file or pay and don’t respond to IRS notices, the IRS can file a tax lien against your business property and, eventually, levy (seize) bank accounts, receivables or other assets. Acting early gives you many more options.
Quick Checklist for Paying Business Taxes on Time
- Know which federal, state and payroll returns your business must file.
- Put every filing and payment deadline in a calendar with reminders.
- Set aside a percentage of revenue for taxes in a separate account.
- Make quarterly estimated tax payments.
- Keep records and receipts organized all year.
- Claim every deduction and credit you qualify for.
- File on time, even if you can’t pay in full.
- Contact the IRS quickly to set up a payment plan if needed.
FAQs
When are business taxes due?
For calendar-year businesses, partnerships and S corporations file by March 15, and C corporations and sole proprietors file by April 15.
What is the penalty for paying business taxes late?
The failure-to-pay penalty is 0.5% of unpaid tax per month, up to 25%. Interest is charged as well.
What is the penalty for filing a business tax return late?
The failure-to-file penalty is 5% of unpaid tax per month, up to 25%, with a minimum penalty if the return is more than 60 days late.
Do I need to pay estimated taxes for my business?
Usually, if your corporation expects to owe $500 or more, or you expect to owe $1,000 or more as a sole proprietor or owner of a pass-through business.
Can a business set up a payment plan with the IRS?
Yes, but businesses can’t apply online. Call the number on your notice or 800-829-4933.
Can IRS penalties be removed?
Often, yes. First-time abate relief and reasonable-cause relief can remove some penalties for businesses that qualify.
Is business travel tax deductible?
Ordinary and necessary business travel away from home is generally deductible, including transportation, lodging and 50% of meals. Personal portions of a trip aren’t deductible.
Conclusion
Paying your company’s taxes on time comes down to three habits: know your deadlines, pay estimated taxes as you go and always file on time, even when you can’t pay in full. If you fall behind, contact the IRS early, because payment plans and penalty relief are far easier to arrange before a debt reaches collections.
This article is for general information only and isn’t tax or legal advice. Tax rules change, so check IRS.gov or consult a tax professional about your situation.
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