IRS penalties and interest can make an unpaid federal tax bill grow even after the original filing deadline passes. The IRS may charge penalties when you file late, pay late, underpay estimated tax, or report an incorrect tax liability, while interest generally accrues on unpaid tax from the original due date until payment. Some penalties can reach 25% of the unpaid tax, and interest compounds daily. The exact amount depends on the type of penalty, dates involved, payments made, and current IRS interest rate.
For creators and other self-employed individuals, these charges can become especially important because income often arrives without wage withholding. A strong month followed by lower revenue can also make quarterly estimated tax payments harder to predict. Knowing which charge applies, what keeps accruing, and whether penalty abatement is available can help you respond before the remaining debt grows further. This guide explains the current 2026 rules, practical ways to reduce future charges, and the relief options the IRS allows.
How Do IRS Penalties and Interest Work?
IRS penalties apply when a taxpayer does not meet a tax requirement, while interest compensates the government for an unpaid balance. The IRS can assess a tax penalty for late filing, late payment, inaccurate reporting, and other failures. Interest can then increase the balance until the required amount is paid. A single tax return can also involve multiple penalties when separate requirements were not met.
The distinction matters because the rules for reducing each charge are different. Some IRS penalties can be removed through administrative relief, reasonable cause, statutory exceptions, or correction of an incorrect assessment. Interest on unpaid federal tax generally continues until the tax is paid, even when a payment plan is active. The amount and starting date can also differ based on the type of tax, penalty, and assessment involved.
| Charge | Why It May Apply | General Rate or Rule |
|---|---|---|
| Failure-to-file penalty | Tax return filed after the deadline | Generally 5% per month, up to 25% |
| Failure-to-pay penalty | Tax shown or assessed remains unpaid | Generally 0.5% per month, up to 25% |
| Estimated tax penalty | Quarterly estimated payments were too low or late | Calculated based on the underpayment and period |
| Accuracy-related penalty | Negligence or substantial understatement | Generally 20% of the affected underpayment |
| Civil fraud penalty | Part of an underpayment resulted from fraud | 75% of the portion due to fraud |
| Interest | Tax remains unpaid | Federal short-term rate plus 3 percentage points for individuals, compounded daily |
The IRS uses penalties to encourage compliance with federal tax laws, but a penalty does not automatically mean the IRS believes a taxpayer committed fraud. Honest mistakes, late payments, missing records, and incorrect estimated payments can lead to very different penalties. The first step is identifying exactly what the IRS notice says and what tax year, balance, and penalty code it covers.
Failure-to-File and Failure-to-Pay Penalties Can Grow at Different Speeds
The failure-to-file penalty is generally much larger each month than the ordinary failure-to-pay penalty. A late return usually faces a 5% monthly filing penalty, while unpaid tax generally faces a 0.5% monthly payment penalty. Both are limited to 25% under their normal rules, but they interact when both apply.
This difference is why taxpayers who cannot pay should usually still file the required tax return on time. Filing immediately can stop the failure-to-file penalty from growing even though the unpaid tax balance remains. An extension can give more time to file, but an extension to file generally does not extend the time to pay. Interest and a failure-to-pay penalty may therefore continue after a valid filing extension.
The Failure-to-File Penalty Is Generally 5% per Month
The failure-to-file penalty generally equals 5% of unpaid taxes for each month or part of a month that the return remains late. The maximum normal failure-to-file penalty is 25% of the unpaid tax. When both failure-to-file and failure-to-pay apply for the same month, the filing portion generally falls to 4.5%, while the 0.5% payment penalty also applies.
For returns required to be filed in 2026, a separate minimum rule applies when the return is more than 60 days late. The minimum failure-to-file penalty is generally the lesser of $525 or 100% of the unpaid tax. That amount increased from earlier tax years, so an older figure should not be used for a 2026 filing.
The Failure-to-Pay Penalty Is Generally 0.5% per Month
The failure-to-pay penalty normally equals 0.5% of the unpaid tax for each month or part of a month after the payment due date. It can continue until it reaches a maximum of 25%. Unlike the filing penalty, it may continue long after a taxpayer files the return if part of the tax liability remains unpaid.
The rate can change in specific circumstances. For an individual who timely filed the related return, the failure-to-pay rate generally falls to 0.25% per month while an approved installment agreement is in effect. It can increase to 1% per month after the applicable notice period for an intent to levy.
Multiple Penalties Can Apply to One Tax Return
A taxpayer can owe more than one penalty when separate failures occurred. For example, a creator might file a return late, pay the tax late, and later receive an accuracy-related penalty on additional tax from an adjustment. The 25% cap on one penalty does not create a universal 25% cap on every addition to the tax.
This is also why a tax bill can become much larger than the amount originally shown on the return. Tax, multiple penalties, and interest follow different calculations and may start on different dates. Rather than assuming every charge comes from the same rule, compare the IRS notice with the filed return, payment history, and account transcript.
How Does IRS Interest Work in 2026?
IRS interest generally starts on unpaid income tax from the original payment due date and continues until the balance is paid. For individual taxpayers, the underpayment rate equals the federal short-term rate plus three percentage points, and the IRS resets the rate quarterly. Interest compounds daily, so the calculation changes as time passes.
For 2026, the individual and other noncorporate underpayment rate is 7% for January through March, 6% for April through June, 7% for July through September, and 7% for October through December under the IRS quarterly interest rate announcements. A balance that remains unpaid across several quarters may therefore use more than one interest rate. The IRS does not simply apply the current rate to the entire history of the debt.
| 2026 Period | Individual Underpayment Rate |
|---|---|
| January-March | 7% |
| April-June | 6% |
| July-September | 7% |
| October-December | 7% |
A simple example shows why exact payoff figures need current dates. Suppose a creator still owes $10,000 after the due date. Interest accrues daily, while any applicable failure-to-pay penalty follows its monthly rule, so the account does not grow at one flat percentage. Partial payments reduce the unpaid balance that remains subject to future charges.
Interest on Penalties Does Not Always Start on the Same Date
The IRS also charges interest on many penalties, but the start date depends on the penalty involved. Interest on the failure-to-file, accuracy-related, and fraud penalties generally runs from the return due date, including extensions, while interest on certain other penalties begins after notice and demand. Treating every penalty as if interest started on the original April filing date can produce the wrong estimate.
This distinction matters when checking an IRS calculation or estimating a payoff amount. A calculator can provide a planning estimate, but the IRS account record controls the actual assessment dates, payments, credits, and rate changes. Tax professionals often start with the tax account transcript when a balance covers multiple years or contains several assessments.
Estimated Tax Penalties Matter for Creators With Uneven Income
An estimated tax penalty can apply when an individual did not pay enough tax during the year through wage withholding and estimated payments. This issue commonly affects self-employed individuals because platform payouts and other business income may arrive without federal income tax withholding. The penalty follows separate rules from failure-to-file and failure-to-pay.
The IRS generally looks at when the tax should have been paid, not only the final balance on the annual tax return. This means paying the full tax bill during filing season does not always erase an estimated tax penalty from earlier quarters. Form 2210 may be used to calculate the penalty, request certain waivers, or account for income that did not arrive evenly throughout the tax year.
Estimated Tax Safe Harbors Can Prevent a Penalty
Individual taxpayers generally avoid the estimated tax penalty if the filed return shows less than $1,000 due after withholding and refundable credits. Another common safe harbor applies when payments equal at least 90% of the current year’s tax or 100% of the prior year’s tax, subject to the applicable rules. Higher-income taxpayers may need 110% of the prior year’s tax instead of 100%.
The 110% prior-year rule generally applies when prior-year adjusted gross income exceeds $150,000, or $75,000 for married filing separately. These thresholds make the prior year’s tax especially important during quarterly planning. A creator whose income increases sharply should not assume last year’s dollar amount will always satisfy the current estimated tax requirement.
Uneven Creator Income May Support the Annualized Income Method
Creator income often does not arrive evenly across four quarters. One launch, viral period, sponsorship, or large platform payout can push a large share of annual income into a later part of the year. The annualized income installment method on Form 2210 Schedule AI can help eligible taxpayers calculate required installments when the standard method does not reflect when income was actually earned.
A practical creator tax review should therefore look at income timing, not just annual totals. If most of the current year’s tax liability came from income earned late in the year, quarterly records may matter when calculating the estimated tax penalty. Keep platform statements, bookkeeping reports, estimated payments, and wage withholding records organized for each period.
Accuracy-Related and Fraud Penalties Follow Different Rules
Some IRS penalties arise from the contents of a tax return rather than a missed deadline. The accuracy-related penalty generally applies at a 20% rate to qualifying portions of an underpayment, while the civil fraud penalty can equal 75% of the portion attributable to fraud. These penalties require different facts, standards, and defenses.
A creator should not assume that every incorrect deduction or missing Form 1099 automatically creates fraud penalties. The IRS distinguishes negligence, substantial understatement, honest mistakes, reasonable cause, and intentional conduct. Good records matter because the correct amount may depend on gross creator income, business deductions, credits, and other information reported on the return.
The Accuracy-Related Penalty is Generally 20%
The accuracy-related penalty is generally 20% of the portion of an underpayment caused by negligence, disregard of tax rules, or a substantial understatement of income tax. For an individual, a substantial understatement generally exists when the understatement exceeds the greater of 10% of the correct tax or $5,000, subject to special rules.
Reasonable cause and good faith can matter for some accuracy-related penalties. The IRS considers all pertinent facts and circumstances when evaluating reasonable cause and good faith. Reliance on tax professionals can be relevant when the facts support a good-faith effort to determine the proper tax liability.
Civil Fraud Carries a 75% Penalty
Internal Revenue Code Section 6663 imposes a civil fraud penalty equal to 75% of the portion of an underpayment due to fraud. A separate fraudulent failure-to-file rule can raise the late-filing rate to 15% per month, up to 75%, when the failure itself is fraudulent.
Fraud involves much more than a normal filing mistake. IRS guidance describes the civil fraud penalty in terms of intent to evade tax. A false return, deliberately concealed income, or intentional conduct therefore belongs in a different category from a reasonable accounting error or good-faith disagreement over a deduction.
How Can You Reduce IRS Penalties and Interest?
The best way to reduce future IRS penalties and interest depends on what created the balance. Filing an overdue return can stop additional failure-to-file charges, while paying part of an unpaid balance reduces the amount that continues generating interest and payment penalties. Separate IRS penalty relief rules may remove qualifying penalties after the fact.
Start with the underlying tax. Confirm that income, estimated payments, wage withholding, credits, and prior payments were applied to the correct tax year. Then identify each penalty and decide whether administrative relief, reasonable cause, a statutory exception, or a correction applies. An incorrect tax liability should be addressed separately from a valid penalty on a correct balance.
Automatic Exemption from Penalty is Replacing First Time Abate
In July 2026, the IRS introduced Automatic Exemption from Penalty, or AEP, as the successor to the long-standing First Time Abate program. For eligible original returns, AEP starts with 2025 tax-year returns and 2026 quarterly returns. A taxpayer generally needs timely filing and payment compliance for the prior three years, or 12 consecutive quarters for quarterly filers.
AEP can prevent eligible failure-to-file, failure-to-pay, and failure-to-deposit penalties from being assessed during processing. The IRS applies the relief automatically when its records show that the taxpayer qualifies. First Time Abate is being phased out during the transition and will be replaced for eligible returns with original due dates on or after January 1, 2027.
This change matters when someone searches for first-time penalty abatement or first-time abatement in 2026. Do not assume an old request process still applies to every current period. If an IRS notice shows a penalty that you believe should have received AEP, review the current administrative relief rules and the account history.
Reasonable Cause Requires Facts and Supporting Records
Reasonable cause may allow the IRS to remove or reduce certain penalties when the taxpayer exercised ordinary care and prudence but still could not meet the tax requirement. Possible facts include a natural disaster, serious illness, death in the immediate family, unavailable records, or certain system problems. Lack of funds alone generally does not constitute reasonable cause for failure to pay.
A strong request should explain the specific circumstances, the period affected, what prevented timely compliance, and what the taxpayer did once the problem ended. Include records that support the timeline rather than sending a general statement that payment was difficult. The IRS may handle some requests over the phone, while other situations may call for a written explanation or Form 843 claim for refund or abatement.
Reasonable cause does not apply to the estimated tax penalty in the ordinary way. Form 2210 has separate waiver rules for situations such as certain casualty, disaster, unusual circumstances, retirement, or disability cases. The exact requirements should be reviewed before a taxpayer requests abatement.
The IRS Data Book for fiscal year 2024 recorded 6,492,656 civil penalty abatements totaling about $75.2 billion, although that figure covers many reasons for abatement and should not be treated as an approval rate for taxpayer requests.
IRS Interest Has Much Narrower Relief Rules
Interest on the underlying unpaid tax generally does not disappear just because the taxpayer had reasonable cause for filing or paying late. When the IRS removes or reduces a penalty, it also adjusts the interest tied to the removed penalty. The tax and the interest on that tax can still remain under the IRS administrative penalty relief rules.
Separate interest abatement can apply under IRC Section 6404 when an unreasonable IRS managerial or ministerial error or delay caused additional interest and the taxpayer did not significantly contribute to that delay. Only the interest associated with the qualifying period may be removed. A taxpayer can request review with Form 843 or a signed written request supported with dates and records.
How Does an IRS Payment Plan Affect Penalties and Interest?
An IRS payment plan can spread an unpaid tax balance over time, but it does not freeze the account. Interest continues to accrue during an installment agreement, and some penalties may continue until the debt is paid. For eligible individuals who timely filed, an active installment agreement can reduce the normal failure-to-pay rate from 0.5% to 0.25% per month.
In 2026, individual taxpayers generally may qualify for a Simple Payment Plan when assessed tax, penalties, and interest total $50,000 or less and filing and payment requirements are current. A short-term online plan may be available for individuals with less than $100,000 in combined tax, penalties, and interest. Taxpayers outside those limits may still have other payment options.
Creators who need a monthly agreement can review how Form 9465 works for an IRS payment plan. A taxpayer who can make monthly payments but cannot fully pay before the collection period ends may instead qualify for a partial payment installment agreement. The remaining collection period can also affect payment strategy, which makes the Collection Statute Expiration Date important in longer-term cases.
Professional perspective: the monthly payment should leave room for current taxes. A creator who puts every available dollar toward old tax debt but misses new quarterly estimated payments can create another balance and put the installment agreement at risk. Review current year’s tax, operating costs, household cash flow, and estimated payments together rather than treating the old debt as a separate problem.
What Should You Do After Receiving an IRS Penalty Notice?
An IRS notice should be checked against the return, payment history, tax year, and penalty type before you request relief or send money. The notice may be correct, partially correct, or based on a tax balance that needs adjustment. Response deadlines and instructions vary according to the IRS notice or letter, so use the instructions printed on the actual correspondence.
A practical review separates three questions: Is the underlying tax correct? Is the penalty legally correct? Is there relief available even if the assessment is correct? This approach prevents a penalty abatement request from overlooking an incorrect tax bill or an uncredited payment. It also makes supporting documents easier for the IRS to follow.
Use this checklist:
- Identify the notice and tax period. Confirm the notice number, tax year, balance, penalty, and due date.
- Check the underlying tax. Compare the IRS figure with the filed return, Forms 1099, withholding, estimated payments, and payment confirmations.
- Separate tax, penalties, and interest. Do not treat the entire balance as one charge.
- Confirm the filing and payment dates. A few days can affect monthly penalty calculations.
- Review AEP or transitional First Time Abate eligibility. Check the prior three-year compliance history.
- Review reasonable cause or statutory exceptions. Gather evidence before requesting abatement.
- Pay the undisputed amount when practical. A smaller unpaid balance means less future interest.
- Address an unaffordable balance. Consider an installment agreement or another collection option rather than ignoring later notices.
- Keep proof of every response and payment. Save letters, documents, submission confirmations, and account records.
If the notice requires a written response, follow the exact process rather than sending a generic explanation. A letter to the IRS can help organize the notice number, disputed issue, facts, requested correction, and supporting records when a written explanation is appropriate. Formal collection rights use different procedures, so a normal letter should not replace a required appeal.
If the account has moved into collection, later choices may involve a Collection Due Process hearing or the Collection Appeals Program. Penalty disputes, tax liability disputes, and collection-action disputes are not always handled through the same process.
Are IRS Penalties and Interest Tax Deductible?
Federal tax penalties paid to a government for violating tax law are generally not tax deductible as ordinary business expenses. IRS Publication 334 lists governmental fines and penalties for violations of law among expenses that generally cannot be deducted. A creator should therefore avoid treating an IRS tax penalty like a normal software, contractor, or marketing expense.
Interest rules can be more technical, but interest paid to the IRS on federal income taxes is not deductible for an individual. Federal income tax itself is also not a normal Schedule C business deduction. When tax debt relates to several entities or tax types, have a CPA, enrolled agent, tax attorney, or other qualified tax professional determine the correct treatment instead of assuming every charge is tax deductible.
FAQs
How much interest does the IRS charge?
The IRS interest rate for individual underpayments equals the federal short-term rate plus three percentage points and can change every quarter. In 2026, the rate is 7% in the first quarter, 6% in the second quarter, and 7% in both the third and fourth quarters. Interest compounds daily until the unpaid balance is paid.
What are IRS penalties?
IRS penalties are additions to tax that apply when taxpayers do not meet certain filing, payment, reporting, deposit, or accuracy requirements. Common IRS penalties include failure-to-file, failure-to-pay, estimated tax underpayment, accuracy-related penalties, and fraud penalties. The IRS may reduce or remove some penalties when administrative relief, reasonable cause, or another legal exception applies.
What is the penalty for not filing taxes?
The penalty for not filing taxes is generally 5% of unpaid tax for each month or part of a month the return is late, up to 25%. When failure to file and failure to pay apply in the same month, the combined normal rate is generally 5%, with 4.5% attributed to late filing and 0.5% to late payment. Returns required to be filed in 2026 and more than 60 days late can also face a minimum penalty of the lesser of $525 or 100% of the unpaid tax.
What triggers an IRS underpayment penalty?
An IRS underpayment penalty can arise when an individual does not pay enough tax during the year through withholding and estimated tax payments. Taxpayers can often avoid it when they owe less than $1,000 after applicable credits and withholding or satisfy the 90% current-year or applicable prior-year safe harbor. Form 2210 contains additional calculation and waiver rules.
Can the IRS waive penalties and interest?
The IRS can waive or reduce certain penalties through administrative penalty relief, reasonable cause, statutory exceptions, or correction of an incorrect assessment. IRS interest is much harder to waive because ordinary reasonable cause does not normally remove interest on unpaid tax. If a penalty is removed, the IRS generally adjusts the interest connected with that penalty as well.
IRS Penalties and Interest Are Easier to Control When You Act Early
IRS penalties and interest follow separate rules, so reducing a tax bill starts with identifying the tax, each penalty, and the interest tied to the account. Filing late can create a much faster-growing charge than paying late, while daily interest can continue even during an installment agreement or other collection arrangement. Current AEP rules, reasonable cause, estimated tax exceptions, and limited interest abatement may reduce qualifying charges. The sooner you verify the balance and address current compliance, the easier it becomes to keep the remaining debt from growing unnecessarily.
At The OnlyFans Accountant, we help creators understand tax balances, IRS penalties, payment options, and compliance issues tied to self-employment income. We help review penalty assessments, estimated tax problems, abatement options, installment agreements, and the records needed to respond to an IRS notice. Contact us to review your IRS penalties and interest and determine the next steps for your tax situation.