Quarterly Estimated Taxes for Business Owners: How Much Should You Pay?
Updated: Sep 16
A strong first half of the year can create a problem many business owners do not see coming: income is rising, but little or no federal income tax has been withheld. Searching for an answer often produces three rules of thumb:
Save 25% or 30% of everything you earn.
Divide last year's tax by four.
Pay 90% of this year's tax.
Each may be useful in a particular situation. None is a complete answer by itself.
The amount you may need to pay in quarterly estimated taxes can depend on business profit, filing status, other household income, W-2 withholding, S corporation wages and pass-through income, deductions, credits, retirement contributions, prior-year tax, current-year projected tax, income timing, and state obligations.
At Florence Tax LLC, we view estimated taxes as a projection that should be updated—not a number calculated once and forgotten. The planning framework is:
Expected annual income → Business or entity structure → Withholding and other payments → Projected total tax → Safe-harbor options → Income timing → Estimated payments → Reforecast during the year
What Are Quarterly Estimated Taxes?
Federal income tax generally operates as a pay-as-you-go system. Tax is usually paid during the year through withholding from wages, pensions, or certain other payments, or through estimated tax payments.
Business owners and other taxpayers may need estimated payments when income is not adequately covered by withholding. Potential sources include:
Sole-proprietor or other self-employment income
Partnership income
S corporation pass-through income
Rental income
Investment income
Capital gains
Commissions, consulting income, or contract payments
Other income without sufficient withholding
However, income from one of these categories does not automatically mean estimated payments are required. The household's complete tax situation matters. For example, sufficient withholding from a spouse's wages may affect whether additional payments are necessary.
Estimated individual income-tax payments are also different from payroll tax deposits, employment-tax returns, corporate estimated taxes, sales taxes, and state or local tax payments. These systems should not be treated as interchangeable.
Who Has to Pay Estimated Taxes?
For federal purposes, an individual generally may need to make estimated tax payments when they expect to owe at least $1,000 after subtracting withholding and refundable credits, and their withholding and credits are less than the smaller of 90% of the current year's tax or 100% of the prior year's tax. The prior-year percentage is generally 110% for certain higher-income taxpayers—usually those whose prior-year adjusted gross income exceeded $150,000, or $75,000 for married taxpayers filing separately.
There is also an important prior-year exception. In general, a taxpayer may not need to make federal estimated-tax payments for 2026 if the taxpayer was a U.S. citizen or resident alien for all of 2025, had no federal tax liability for the full 12-month 2025 tax year, and otherwise satisfies the applicable requirements.
These are general federal rules, not a personalized conclusion. Special rules, exceptions, filing-status changes, short tax years, disaster-related relief, and other circumstances can affect the calculation. The applicable prior-year return generally must have covered a full 12-month tax year for the prior-year test to be useful.
A profitable business does not automatically mean quarterly estimated payments are required. If sufficient tax is already being paid through wage withholding or another mechanism, the result may be different. Conversely, a business owner with moderate business income may still need payments if other income, self-employment tax, investment gains, or insufficient withholding create a balance due.
Do Business Owners Have to Pay Quarterly Taxes?
Business ownership by itself does not create one universal “quarterly tax.” The answer depends on the entity type, type of tax, how the owner is compensated, withholding, expected total tax liability, and other household payments.
Individual estimated tax payments should be distinguished from:
Payroll tax deposits made by an employer
Employment-tax returns
Corporate estimated income-tax payments
Sales and use taxes
State and local estimated taxes
Information returns and other business filings
For example, a sole proprietor may make individual estimated payments that account for both income tax and self-employment tax. An S corporation may have payroll withholding and employment-tax obligations, while the shareholder separately considers pass-through income on an individual return. A C corporation generally has its own federal tax obligations.
For a broader view of year-round guidance, see Florence Tax LLC's tax planning services and tax planning for business owners.
Do LLC Owners Have to Pay Quarterly Taxes?
“LLC” is a legal entity label, not one federal tax classification. An LLC can potentially be treated federally as:
A disregarded entity, commonly for a single-member LLC
A partnership
An S corporation
A C corporation
Therefore, saying that “LLCs pay quarterly taxes” is incomplete. The owner's estimated-tax obligations depend on the LLC's federal tax classification, how income reaches the owner, withholding, and the owner's broader tax situation.
An LLC owner should not assume that forming an LLC automatically creates, removes, or changes an estimated-tax obligation. Entity decisions can have tax, payroll, legal, and administrative consequences, so coordination with appropriate professionals may be useful.
Business owners considering an S corporation election may also want to review how LLC vs S Corp taxes can affect compensation, payroll, and other tax-planning decisions.
Do Self-Employed People Need to Pay Quarterly Taxes?
Self-employed individuals often need estimated payments because business income is not withheld in the same way as employee wages. A projection may need to consider both income tax and self-employment tax, along with other household income, deductions, credits, and withholding.
A fixed percentage of business profit is not a substitute for that calculation. Gross receipts, deductible expenses, filing status, tax brackets, self-employment tax, retirement contributions, and credits can all affect the result.
How Much Should You Pay in Quarterly Estimated Taxes?
There are two related but different questions:
How much tax do I expect to owe for the year?
How much do I need to pay during the year to manage underpayment-penalty exposure?
Those numbers are not always the same.
Approach 1: Current-Year Tax Projection
A current-year projection estimates the full year's results, including:
Business income and expenses
Wages and bonuses
Investment income and capital gains
Other taxable income
Adjustments and deductions
Credits
Self-employment tax, where applicable
Other taxes
The projection then accounts for federal withholding, estimated payments already made, and applicable credits. This approach may provide a better estimate of the eventual balance due, but it depends on reasonably current information and realistic assumptions.
Approach 2: Safe-Harbor Planning
Federal safe-harbor rules can provide a payment target intended to reduce estimated-tax underpayment-penalty exposure when applicable requirements are met. Generally, the target is based on paying at least 90% of current-year tax, 100% of prior-year tax, or 110% of prior-year tax for certain higher-income taxpayers.
Safe harbor is primarily a penalty-management concept. It is not a promise that you will owe nothing when your return is filed.
The relevant base is generally tax under the applicable statutory calculation—not simply last year's refund or the amount owed when the return was filed. Those figures can be affected by withholding, credits, and prior payments and may not represent the applicable prior-year tax.
What Is the Estimated Tax Safe Harbor?
Safe harbor is designed to address potential underpayment penalties, subject to applicable rules. It does not necessarily match the current year's actual tax liability.
The general federal framework includes:
A current-year test based on paying at least 90% of the current year's tax
A prior-year test based on paying at least 100% of the prior year's tax
A higher prior-year percentage—generally 110%—for certain taxpayers above the applicable adjusted-gross-income threshold
The calculation can involve prior-year return requirements, filing status, withholding, credits, required installments, and special exceptions. The current Form 1040-ES, Form 2210, and their instructions should be reviewed for the applicable tax year.
Safe Harbor Does Not Mean You Won't Owe Taxes
Suppose a business owner had a much more profitable year than the year before. The owner pays enough during the year to satisfy an applicable prior-year safe harbor. That may help manage federal estimated-tax underpayment penalties, but the current-year tax can still be substantially higher.
The difference may remain payable when the return is filed.
Penalty planning and cash-flow planning are related, but they are not identical. A projection should show both the amount needed for potential penalty protection and the amount that may ultimately be needed to pay the year's tax.
Should You Just Divide Last Year's Tax by Four?
Dividing a properly determined prior-year tax amount by four may approximate equal installments under some circumstances. It is not universally correct. The shortcut can be misleading when:
The prior-year return covered less than 12 months
Higher-income safe-harbor rules apply
Current-year income changes significantly
Withholding changes
Payments have already been made
Income is uneven or seasonal
Filing status changes
Credits or deductions change
Special exceptions apply
Also, dividing last year's balance due by four is not necessarily the same as dividing the applicable prior-year tax by four. A balance due reflects payments and withholding already credited to the prior return.
Should You Set Aside 25% or 30% for Taxes?
Saving a percentage of income can be useful for cash-flow discipline. It is not the same as calculating an estimated-tax requirement.
A taxpayer's effective burden can differ based on income level, filing status, self-employment tax, entity structure, deductions, credits, household income, and state tax. A percentage of gross revenue can be particularly misleading because revenue is not the same as taxable profit.
A savings percentage can be a budgeting tool. It should not be mistaken for a tax calculation.
Quarterly Estimated Tax Due Dates for 2026
This is a current-year section. For calendar-year individual taxpayers, the federal estimated-tax payment dates for 2026 are generally:
April 15, 2026 — first installment
June 15, 2026 — second installment
September 15, 2026 — third installment
January 15, 2027 — fourth installment
The schedule is commonly called “quarterly,” but the payment periods are not four equal three-month calendar quarters. If a due date falls on a weekend or federal holiday, the deadline generally moves to the next business day. Disaster-related relief or other IRS announcements may also change a deadline for an affected taxpayer.
Always verify the current year's dates before making a payment.
Why Aren't Quarterly Taxes Due Every Three Months?
Federal estimated-tax installments correspond to specified payment periods rather than four equal calendar quarters. That is why June 15 follows April 15 by two months, while later intervals differ.
Business owners should use the IRS schedule for the applicable year rather than assuming that each payment is due exactly three months after the previous one.
What If Your Business Income Changes During the Year?
Business income rarely follows a straight line. A business may lose a major client, sign a large contract, receive an unexpected project payment, sell an asset, increase expenses, change payroll, make a retirement contribution, or experience a significant capital gain.
When a meaningful change occurs, the tax projection should be recalculated. A practical planning cadence may include an initial projection, a midyear review, a third-quarter or year-end review, and an additional review after a major transaction. The appropriate cadence depends on the business and the amount of change.
What If Your Income Is Uneven or Seasonal?
Equal installments may not reflect when income was actually earned. Taxpayers with seasonal businesses, large project payments, real estate transactions, or late-year capital gains may need to consider the annualized-income installment method.
At a high level, annualization can align required installments more closely with the timing of income, subject to the rules and calculations in Form 2210 and its instructions. It is not a simple replacement for estimated-tax planning, and Form 2210 should be reviewed carefully.
What Happens If You Miss a Quarterly Estimated Tax Payment?
The federal underpayment-of-estimated-tax penalty generally relates to the timing and amount of required payments, subject to exceptions and safe-harbor rules. It is not simply a one-time late fee.
Paying the full balance by the tax-return filing deadline does not necessarily erase an earlier estimated-tax underpayment. However, withholding, annualized income, safe harbors, disaster relief, and other rules may affect whether a penalty applies and how it is calculated.
How Is the Estimated Tax Penalty Calculated?
At a high level, the penalty functions somewhat like interest on an underpayment for the applicable period, using IRS-determined rates that can change. The calculation can consider each required installment, payment dates, amounts paid, withholding, and exceptions.
The current Form 2210 and IRS instructions should be used rather than a homemade penalty calculator. A current penalty rate should not be assumed from a prior year.
Can You Catch Up on Estimated Taxes Later?
A taxpayer can make an additional payment later in the year, but that later payment does not necessarily retroactively eliminate an underpayment for an earlier installment period.
Withholding and annualized-income calculations can produce different results under applicable rules. This is one reason a business owner should review the timing of income and payments rather than simply sending one large payment near the filing deadline.
Withholding Can Be an Important Planning Tool
Federal withholding is treated differently from estimated payments for certain underpayment calculations. Under generally applicable rules, withholding is often treated as paid ratably throughout the year unless the taxpayer establishes actual withholding dates under the applicable rules.
This may make withholding an important planning consideration for taxpayers with wages or other income subject to withholding. Any change to payroll should be coordinated with reasonable-compensation requirements, payroll compliance, cash flow, and the overall projection. For S corporation shareholder-employees, that analysis should also account for the IRS rules surrounding S corp reasonable compensation. Florence Tax LLC does not receive or hold estimated-tax payments for clients on behalf of the IRS.
Quarterly Estimated Taxes for S Corporation Owners
An S corporation owner may have:
W-2 wages
Federal withholding
S corporation pass-through income
Distributions
Other household income
The S corporation and its shareholder are not interchangeable for federal tax purposes. Shareholder-level planning may need to coordinate W-2 withholding, projected pass-through income, spouse withholding, prior estimated payments, and applicable safe-harbor requirements.
An S corporation distribution is not automatically the taxable base simply because cash was distributed. Conversely, withholding from wages does not automatically cover all pass-through income. The projection should account for the relevant tax items, not just cash withdrawn from the business.
Can an S Corp Owner Increase Withholding Instead of Making Estimated Payments?
Increasing federal withholding from wages may sometimes be part of an estimated-tax strategy. Whether it is appropriate depends on payroll, reasonable compensation, cash flow, timing, other household withholding, the current projection, payroll processes, and applicable federal and state rules.
This approach may deserve review later in the year because withholding can receive different timing treatment for estimated-tax purposes. It should not be implemented without coordinating the payroll and tax consequences.
Quarterly Taxes for Partnerships and Partners
A partnership generally passes taxable income and other tax items through to its partners. An individual partner may need estimated payments based on the partner's share of taxable items and the partner's broader household situation.
Tax is not necessarily due only when cash is distributed. A partner may have taxable income reported on a Schedule K-1 even when cash distributions do not occur at the same time.
Estimated Taxes and Retirement Contributions
A deductible retirement-plan contribution can potentially affect projected taxable income, but the result depends on the plan, contribution type, timing, entity structure, eligibility, and applicable limits. A planned contribution should not automatically be used to reduce estimated payments.
The contribution must qualify, and the projection should reflect the rules that apply to the taxpayer. Business owners considering a deductible retirement-plan contribution may also want to compare SEP IRA vs Solo 401(k) as part of their broader tax and cash-flow planning.
Estimated Taxes and Major Business Purchases
A significant equipment or asset purchase may change projected taxable income when depreciation deductions apply. It does not automatically reduce tax by the purchase price.
The result can depend on property eligibility, depreciation method, Section 179, bonus depreciation, business use, placed-in-service date, income limits, and other restrictions. For a closer look at those choices, see Florence Tax LLC's comparison of Section 179 vs bonus depreciation. A purchase should be evaluated for its tax treatment and business purpose before estimated payments are changed.
Federal Estimated Taxes vs. State Estimated Taxes
Federal estimated payments do not automatically satisfy state obligations. States can have different thresholds, safe harbors, payment schedules, forms, electronic systems, and penalties.
Arizona has its own estimated-income-tax rules in addition to the federal requirements. For 2026, Arizona generally requires estimated payments for certain taxpayers whose Arizona gross income exceeds specified thresholds, and the state's required-payment calculation can differ from the federal higher-income safe-harbor rules. Arizona's individual estimated payments are generally due April 15, June 15, and September 15, 2026, and January 15, 2027.
A Prescott or Yavapai County business owner should therefore evaluate federal and Arizona estimated-tax requirements separately. Business owners in other states should likewise review the rules of each state in which they have filing obligations.
How Do You Pay Federal Estimated Taxes?
The IRS provides several current payment options for making federal estimated-tax payments electronically or through other approved methods.
Payment methods and procedures can change. Florence Tax LLC can help with the planning calculation, but estimated-tax payments are made by the taxpayer through an IRS-approved payment method.
Quarterly Estimated Tax Examples
The following examples are hypothetical and are intended to illustrate planning logic, not to prescribe a payment amount.
Example 1: Sole Proprietor With Stable Income
A sole proprietor begins with year-to-date bookkeeping and forecasts full-year business income, expenses, self-employment tax, other household income, deductions, and credits. The owner then subtracts federal withholding and payments already made, compares the current-year projection with applicable safe-harbor targets, and determines the remaining payment plan.
The owner might use equal installments if income is reasonably stable, but the result should be based on the projection rather than a universal percentage.
Example 2: Profit Increases Midyear
A business owner prepares a January estimate based on moderate expected revenue. In the second quarter, the business signs a large contract. Continuing to make payments based on the original forecast may leave the owner under-reserved for the eventual balance due.
Florence's approach would be to update the projection, compare current-year tax with safe-harbor needs, and revise both payments and the cash reserve.
Example 3: S Corporation Owner With W-2 Withholding
An S corporation owner receives W-2 wages with federal withholding and also has pass-through income. The projection considers both sources, along with spouse withholding, prior estimated payments, deductions, credits, and other income. The owner may determine that withholding, estimated payments, or a combination is appropriate.
The calculation is not based solely on distributions.
Example 4: Seasonal Business
A seasonal business earns most of its profit late in the year. Equal installments may not reflect the timing of income. The owner may need to consider annualized-income rules and should review Form 2210 and its instructions before relying on that method.
A Better Way to Calculate Estimated Taxes During the Year
Step 1: Start With Year-to-Date Actual Results
Use current bookkeeping, bank information, payroll records, and other reliable data rather than an outdated prior-year assumption.
Step 2: Forecast the Rest of the Year
Estimate revenue, expenses, wages, investment income, major transactions, and expected changes in the business.
Step 3: Estimate Full-Year Taxable Income and Relevant Taxes
Consider income tax, self-employment tax where applicable, pass-through items, and other relevant taxes.
Step 4: Account for Withholding and Credits
Include the owner's withholding, a spouse's withholding, estimated payments already made, and applicable credits.
Step 5: Calculate Applicable Safe-Harbor Requirements
Determine whether an applicable penalty-protection target is based on current-year or prior-year tax and whether a higher-income percentage applies.
Step 6: Compare Safe Harbor With Projected Current-Year Tax
Show the owner both numbers. This distinction is central to responsible cash-flow planning.
Step 7: Determine the Payment and Cash-Reserve Strategy
Consider both required estimated payments and the expected remaining tax liability. A safe-harbor payment may not be enough cash to reserve for the final return.
Step 8: Reforecast After Significant Changes
Do not leave the original estimate untouched when the business, household income, payroll, or tax law changes.
Common Quarterly Estimated Tax Mistakes
Common mistakes include:
Paying an arbitrary percentage without a projection
Assuming every LLC has the same estimated-tax requirement
Dividing last year's balance due by four
Confusing prior-year balance due with prior-year tax
Assuming safe harbor means no tax will be owed
Ignoring self-employment tax
Ignoring spouse income or withholding
Ignoring S corporation pass-through income
Treating distributions as the tax calculation
Forgetting capital gains or investment income
Assuming “quarterly” means every three months
Assuming the April filing deadline fixes earlier underpayments
Ignoring uneven income
Ignoring state estimated taxes
Failing to update estimates after a major business change
Using gross revenue instead of an appropriate tax projection
Treating an online calculator as a substitute for planning
Questions Business Owners Should Ask About Estimated Taxes
How is my business taxed?
What is my year-to-date profit, and what do I realistically expect for the full year?
What other household income do I have?
How much federal tax has already been withheld for me and my spouse?
What estimated payments have already been made?
What was my applicable prior-year tax, and which safe-harbor percentage applies to me?
How much do I expect to owe under the current-year projection?
Is my income seasonal or uneven?
Have I had a major capital gain or asset sale?
Am I planning a significant business purchase?
Will retirement contributions change the projection?
Has my S corporation compensation changed?
Do I also need state estimated payments?
How much cash should I reserve beyond the safe-harbor amount?
When should the projection be updated?
Quarterly Estimated Taxes FAQs
How much should a business owner pay in quarterly taxes?
There is no universal percentage. The amount depends on projected tax, withholding, prior payments, applicable safe-harbor rules, income timing, and individual circumstances.
What percentage should I save for quarterly taxes?
A savings percentage can help with budgeting, but it is not an estimated-tax calculation. The appropriate reserve depends on the facts of the business and household.
What is the estimated-tax safe harbor?
It is a penalty-management concept based generally on current-year or prior-year tax, with a higher prior-year percentage for certain higher-income taxpayers. It does not guarantee that no balance will be due.
If I pay the safe harbor, will I owe nothing at tax time?
No. A rapidly growing business can satisfy an applicable safe harbor and still owe a substantial current-year balance.
Do LLC owners pay quarterly taxes?
Potentially, depending on federal tax classification, income, withholding, and other circumstances. LLC status alone does not answer the question.
Do S corporation owners pay quarterly estimated taxes?
Potentially. W-2 withholding and pass-through income should generally be considered together with other household income and payments.
Are quarterly taxes due every three months?
Not exactly. Federal estimated-tax periods are not four equal calendar quarters.
What are the quarterly tax due dates for 2026?
For calendar-year individuals, the generally applicable dates are April 15, June 15, and September 15, 2026, followed by January 15, 2027. Verify current IRS guidance before paying.
What happens if I miss an estimated-tax payment?
An underpayment penalty may apply based on timing and amount, subject to safe harbors, withholding, annualization, exceptions, and other rules. A later payment does not always erase an earlier underpayment.
Can I make one estimated-tax payment instead of four?
The answer depends on when income is earned, required installments, withholding, annualization, and other circumstances. There is no universal answer.
How do I pay estimated taxes to the IRS?
Use the current payment options and instructions provided through IRS.gov. Florence Tax LLC can assist with planning but does not receive payments for clients.
Can I increase W-2 withholding instead of paying quarterly estimates?
Potentially. Withholding can receive different timing treatment, but the strategy should be coordinated with payroll, reasonable compensation, cash flow, and the overall tax projection.
Estimated Taxes Should Change When Your Business Changes
There is no universal quarterly-tax percentage. LLC status alone does not determine the requirement. Safe harbor and projected current-year tax are different numbers, and paying safe harbor does not necessarily eliminate a balance due.
Withholding, entity structure, uneven income, state requirements, and major business changes can all affect the calculation. Estimated taxes work best as part of year-round planning—not as four disconnected payments based on an outdated estimate.
Tired of Guessing What to Pay in Quarterly Taxes?
Business owners often know they should set money aside but do not know whether their payments are too high, too low, or based on an assumption that no longer fits the business.
Florence Tax LLC can help evaluate year-to-date results, project the full year, consider applicable safe-harbor requirements, and update estimated-tax planning as the business changes. Based in Prescott, Arizona, Florence Tax LLC works with qualifying clients beyond the local area where appropriate.
Request a consultation with Florence Tax LLC to discuss your business's estimated-tax planning needs.
Disclaimer: This article is for general educational and informational purposes only and does not constitute individualized tax, legal, accounting, financial, investment, or business advice. Estimated-tax requirements, safe-harbor calculations, withholding treatment, payment deadlines, penalties, state requirements, and other tax rules depend on the taxpayer's income, filing status, business structure, prior-year return, withholding, credits, payment timing, state filing obligations, and other facts and circumstances. Tax laws, thresholds, forms, deadlines, interest rates, and administrative guidance may change.
Readers should consult a qualified tax professional or other appropriate advisor regarding their specific circumstances before changing withholding or estimated-tax payments. Florence Tax LLC and Amber Rose Florence should not be characterized as a CPA, attorney, financial advisor, investment advisor, payroll provider, or financial-planning professional.
This article does not promise penalty avoidance, tax savings, a refund, IRS or state acceptance, or a particular tax result. Reading this article or using information provided on this website does not create a professional-client relationship with Florence Tax LLC.
