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Key Tax Deadlines

2026 filing season calendar: Tax Day, extension deadlines, estimated payment dates, and contribution deadlines

Last Updated: Feb 2026

Key Numbers

Tax Day

April 15, 2026

Extension

Oct 15, 2026

IRA/HSA Deadline

April 15, 2026

Estimated Pmts

Jan, Apr, Jun, Sep

Missing tax deadlines triggers penalties and interest. This calendar covers the full 2026 filing season for individual taxpayers — filing dates, estimated payment deadlines, retirement contribution cutoffs, and employer form due dates, all for tax year 2025.

2026 Tax Calendar at a Glance

DateDeadline
Jan 15, 2026Q4 2025 estimated tax payment due
Jan 26, 2026IRS begins accepting 2025 returns
Jan 31, 2026Employers send W-2s; 1099-NEC due to recipients and IRS
Feb 17, 2026Claim withholding exemption for 2026 (Form W-4)
Mar 2, 2026Farmers/fishers file to avoid Q4 estimated penalty
Apr 1, 2026First RMD deadline if you turned 73 in 2025
Apr 15, 2026TAX DAY — File/pay 2025 taxes, request extension, IRA/HSA contributions, Q1 2026 estimated payment
Jun 15, 2026Q2 2026 estimated tax payment; auto-extension for U.S. citizens abroad
Sep 15, 2026Q3 2026 estimated tax payment due
Oct 15, 2026Extended 2025 return deadline (Form 4868 filers)
Dec 31, 2026401(k)/403(b) employee deferrals for 2026; annual RMD deadline
Jan 15, 2027Q4 2026 estimated tax payment due

Weekend/holiday rule: If a deadline falls on a Saturday, Sunday, or legal holiday, it moves to the next business day. In 2026, April 15 is a Wednesday — no adjustment to Tax Day.

Filing & Extensions

The federal filing deadline for 2025 returns is April 15, 2026. Filing Form 4868 grants an automatic 6-month extension to file — but any taxes owed must still be paid by April 15 to avoid penalties.

What's Due on April 15

ActionDetails
File Form 1040Submit your 2025 individual return (or 1040-SR for seniors)
Pay taxes owedFull payment due even if you file an extension
Request extensionForm 4868 extends filing deadline to Oct 15 — no explanation required
IRA/HSA contributionsLast day to make contributions that count toward tax year 2025
Q1 2026 estimated paymentFirst quarterly payment for current tax year income

Late Filing & Payment Penalties

PenaltyRateCap
Failure to file5% of unpaid tax per month25%
Failure to pay0.5% of unpaid tax per month25%
Both apply?Filing penalty reduced by payment penalty amount

Extension ≠ more time to pay. An extension avoids the 5% late-filing penalty but does not stop the 0.5% late-payment penalty or interest on unpaid balances after April 15.

State & Special Situations

State deadlines: Most states follow the federal April 15 deadline, but some differ (e.g., Virginia typically allows until May 1). Check your state's tax authority for specifics.

Disaster relief: Federally-declared disasters can trigger automatic filing and payment extensions. The IRS maintains a current list by location at IRS.gov/DisasterRelief.

Estimated Tax Payments

If you have income without tax withholding (self-employment, investments, rental income), you generally must make quarterly estimated payments. The periods covered are unequal — Q2 covers only 2 months while Q4 covers 4.

2026 Estimated Payment Schedule

PaymentDue DateIncome Period
Q4 2025January 15, 2026Sep 1 – Dec 31, 2025
Q1 2026April 15, 2026Jan 1 – Mar 31, 2026
Q2 2026June 15, 2026Apr 1 – May 31, 2026
Q3 2026September 15, 2026Jun 1 – Aug 31, 2026
Q4 2026January 15, 2027Sep 1 – Dec 31, 2026

Safe Harbor Rules

You must make estimated payments if you expect to owe $1,000+ after withholding and credits,and your withholding covers less than the smaller of:

Safe Harbor TestThreshold
Current-year test90% of current year's total tax liability
Prior-year test100% of prior year's tax liability
High-income prior-year test110% if prior year AGI exceeded $150,000 ($75,000 MFS)

Underpayment penalty: The IRS charges the federal short-term rate plus 3 percentage points, compounded daily on underpaid estimates. Use Form 2210 to calculate.

Contribution & Other Deadlines

Retirement contributions, employer information returns, and several niche situations each carry their own deadlines. Missing these can mean lost tax benefits or IRS penalties.

Retirement Contribution Deadlines (Tax Year 2025)

AccountDeadline2025 Limit
Traditional / Roth IRAApril 15, 2026$7,000 ($8,000 if 50+)
HSAApril 15, 2026$4,300 self / $8,550 family
401(k) / 403(b) employee deferralDecember 31, 2025$23,500 ($31,000 if 50+)*
SEP IRA (employer)Filing deadline + extensions$70,000 or 25% of comp
Solo 401(k) employer portionFiling deadline + extensionsUp to $70,000 total

*Ages 60–63 get a super catch-up of $11,250 (total $34,750) under SECURE 2.0.

Required Minimum Distributions (RMDs)

SituationDeadlineNote
First RMD (turned 73 in 2025)April 1, 2026Delaying means 2 RMDs in 2026 — potential bracket jump
Subsequent RMDsDecember 31 each year25% penalty on amount not withdrawn (down from 50%)

Employer & Information Return Deadlines

FormDue to RecipientDue to IRS
W-2 (Wages)January 31, 2026January 31, 2026
1099-NEC (Non-employee comp)January 31, 2026January 31, 2026
1099-MISCJanuary 31, 2026February 28, 2026
1099-INT, 1099-DIVJanuary 31, 2026February 28, 2026
1099-B (Broker)February 15, 2026February 28, 2026

Special Situations

SituationRule
Farmers & fishersIf ⅔+ of gross income is from farming/fishing, one estimated payment (Jan 15) is sufficient — or file and pay by March 2, 2026 to avoid the Q4 penalty
U.S. citizens abroadAutomatic 2-month extension to June 15, 2026 to file (not to pay); attach a statement explaining qualification
Military in combat zonesAll deadlines suspended for time in the combat zone plus 180 days; penalties and interest also suspended

Stay updated: The IRS publishes Publication 509 (annual tax calendar) and maintains a searchable Tax Calendar at IRS.gov/TaxCalendar. Check for disaster relief extensions that may apply to your area.

Filing Deadlines

Missing tax deadlines triggers penalties and interest. This calendar covers the full 2026 filing season for individual taxpayers — filing dates, estimated payment deadlines, retirement contribution cutoffs, and employer form due dates, all for tax year 2025.

2026 Tax Calendar at a Glance

DateDeadline
Jan 15, 2026Q4 2025 estimated tax payment due
Jan 26, 2026IRS begins accepting 2025 returns
Jan 31, 2026Employers send W-2s; 1099-NEC due to recipients and IRS
Feb 17, 2026Claim withholding exemption for 2026 (Form W-4)
Mar 2, 2026Farmers/fishers file to avoid Q4 estimated penalty
Apr 1, 2026First RMD deadline if you turned 73 in 2025
Apr 15, 2026TAX DAY — File/pay 2025 taxes, request extension, IRA/HSA contributions, Q1 2026 estimated payment
Jun 15, 2026Q2 2026 estimated tax payment; auto-extension for U.S. citizens abroad
Sep 15, 2026Q3 2026 estimated tax payment due
Oct 15, 2026Extended 2025 return deadline (Form 4868 filers)
Dec 31, 2026401(k)/403(b) employee deferrals for 2026; annual RMD deadline
Jan 15, 2027Q4 2026 estimated tax payment due

Weekend/holiday rule: If a deadline falls on a Saturday, Sunday, or legal holiday, it moves to the next business day. In 2026, April 15 is a Wednesday — no adjustment to Tax Day.

Filing & Extensions

The federal filing deadline for 2025 returns is April 15, 2026. Filing Form 4868 grants an automatic 6-month extension to file — but any taxes owed must still be paid by April 15 to avoid penalties.

What's Due on April 15

ActionDetails
File Form 1040Submit your 2025 individual return (or 1040-SR for seniors)
Pay taxes owedFull payment due even if you file an extension
Request extensionForm 4868 extends filing deadline to Oct 15 — no explanation required
IRA/HSA contributionsLast day to make contributions that count toward tax year 2025
Q1 2026 estimated paymentFirst quarterly payment for current tax year income

Late Filing & Payment Penalties

PenaltyRateCap
Failure to file5% of unpaid tax per month25%
Failure to pay0.5% of unpaid tax per month25%
Both apply?Filing penalty reduced by payment penalty amount

Extension ≠ more time to pay. An extension avoids the 5% late-filing penalty but does not stop the 0.5% late-payment penalty or interest on unpaid balances after April 15.

State & Special Situations

State deadlines: Most states follow the federal April 15 deadline, but some differ (e.g., Virginia typically allows until May 1). Check your state's tax authority for specifics.

Disaster relief: Federally-declared disasters can trigger automatic filing and payment extensions. The IRS maintains a current list by location at IRS.gov/DisasterRelief.

Estimated Tax Payments

If you have income without tax withholding (self-employment, investments, rental income), you generally must make quarterly estimated payments. The periods covered are unequal — Q2 covers only 2 months while Q4 covers 4.

2026 Estimated Payment Schedule

PaymentDue DateIncome Period
Q4 2025January 15, 2026Sep 1 – Dec 31, 2025
Q1 2026April 15, 2026Jan 1 – Mar 31, 2026
Q2 2026June 15, 2026Apr 1 – May 31, 2026
Q3 2026September 15, 2026Jun 1 – Aug 31, 2026
Q4 2026January 15, 2027Sep 1 – Dec 31, 2026

Safe Harbor Rules

You must make estimated payments if you expect to owe $1,000+ after withholding and credits,and your withholding covers less than the smaller of:

Safe Harbor TestThreshold
Current-year test90% of current year's total tax liability
Prior-year test100% of prior year's tax liability
High-income prior-year test110% if prior year AGI exceeded $150,000 ($75,000 MFS)

Underpayment penalty: The IRS charges the federal short-term rate plus 3 percentage points, compounded daily on underpaid estimates. Use Form 2210 to calculate.

Contribution & Other Deadlines

Retirement contributions, employer information returns, and several niche situations each carry their own deadlines. Missing these can mean lost tax benefits or IRS penalties.

Retirement Contribution Deadlines (Tax Year 2025)

AccountDeadline2025 Limit
Traditional / Roth IRAApril 15, 2026$7,000 ($8,000 if 50+)
HSAApril 15, 2026$4,300 self / $8,550 family
401(k) / 403(b) employee deferralDecember 31, 2025$23,500 ($31,000 if 50+)*
SEP IRA (employer)Filing deadline + extensions$70,000 or 25% of comp
Solo 401(k) employer portionFiling deadline + extensionsUp to $70,000 total

*Ages 60–63 get a super catch-up of $11,250 (total $34,750) under SECURE 2.0.

Required Minimum Distributions (RMDs)

SituationDeadlineNote
First RMD (turned 73 in 2025)April 1, 2026Delaying means 2 RMDs in 2026 — potential bracket jump
Subsequent RMDsDecember 31 each year25% penalty on amount not withdrawn (down from 50%)

Employer & Information Return Deadlines

FormDue to RecipientDue to IRS
W-2 (Wages)January 31, 2026January 31, 2026
1099-NEC (Non-employee comp)January 31, 2026January 31, 2026
1099-MISCJanuary 31, 2026February 28, 2026
1099-INT, 1099-DIVJanuary 31, 2026February 28, 2026
1099-B (Broker)February 15, 2026February 28, 2026

Special Situations

SituationRule
Farmers & fishersIf ⅔+ of gross income is from farming/fishing, one estimated payment (Jan 15) is sufficient — or file and pay by March 2, 2026 to avoid the Q4 penalty
U.S. citizens abroadAutomatic 2-month extension to June 15, 2026 to file (not to pay); attach a statement explaining qualification
Military in combat zonesAll deadlines suspended for time in the combat zone plus 180 days; penalties and interest also suspended

Stay updated: The IRS publishes Publication 509 (annual tax calendar) and maintains a searchable Tax Calendar at IRS.gov/TaxCalendar. Check for disaster relief extensions that may apply to your area.

Estimated Payments

Missing tax deadlines triggers penalties and interest. This calendar covers the full 2026 filing season for individual taxpayers — filing dates, estimated payment deadlines, retirement contribution cutoffs, and employer form due dates, all for tax year 2025.

2026 Tax Calendar at a Glance

DateDeadline
Jan 15, 2026Q4 2025 estimated tax payment due
Jan 26, 2026IRS begins accepting 2025 returns
Jan 31, 2026Employers send W-2s; 1099-NEC due to recipients and IRS
Feb 17, 2026Claim withholding exemption for 2026 (Form W-4)
Mar 2, 2026Farmers/fishers file to avoid Q4 estimated penalty
Apr 1, 2026First RMD deadline if you turned 73 in 2025
Apr 15, 2026TAX DAY — File/pay 2025 taxes, request extension, IRA/HSA contributions, Q1 2026 estimated payment
Jun 15, 2026Q2 2026 estimated tax payment; auto-extension for U.S. citizens abroad
Sep 15, 2026Q3 2026 estimated tax payment due
Oct 15, 2026Extended 2025 return deadline (Form 4868 filers)
Dec 31, 2026401(k)/403(b) employee deferrals for 2026; annual RMD deadline
Jan 15, 2027Q4 2026 estimated tax payment due

Weekend/holiday rule: If a deadline falls on a Saturday, Sunday, or legal holiday, it moves to the next business day. In 2026, April 15 is a Wednesday — no adjustment to Tax Day.

Filing & Extensions

The federal filing deadline for 2025 returns is April 15, 2026. Filing Form 4868 grants an automatic 6-month extension to file — but any taxes owed must still be paid by April 15 to avoid penalties.

What's Due on April 15

ActionDetails
File Form 1040Submit your 2025 individual return (or 1040-SR for seniors)
Pay taxes owedFull payment due even if you file an extension
Request extensionForm 4868 extends filing deadline to Oct 15 — no explanation required
IRA/HSA contributionsLast day to make contributions that count toward tax year 2025
Q1 2026 estimated paymentFirst quarterly payment for current tax year income

Late Filing & Payment Penalties

PenaltyRateCap
Failure to file5% of unpaid tax per month25%
Failure to pay0.5% of unpaid tax per month25%
Both apply?Filing penalty reduced by payment penalty amount

Extension ≠ more time to pay. An extension avoids the 5% late-filing penalty but does not stop the 0.5% late-payment penalty or interest on unpaid balances after April 15.

State & Special Situations

State deadlines: Most states follow the federal April 15 deadline, but some differ (e.g., Virginia typically allows until May 1). Check your state's tax authority for specifics.

Disaster relief: Federally-declared disasters can trigger automatic filing and payment extensions. The IRS maintains a current list by location at IRS.gov/DisasterRelief.

Estimated Tax Payments

If you have income without tax withholding (self-employment, investments, rental income), you generally must make quarterly estimated payments. The periods covered are unequal — Q2 covers only 2 months while Q4 covers 4.

2026 Estimated Payment Schedule

PaymentDue DateIncome Period
Q4 2025January 15, 2026Sep 1 – Dec 31, 2025
Q1 2026April 15, 2026Jan 1 – Mar 31, 2026
Q2 2026June 15, 2026Apr 1 – May 31, 2026
Q3 2026September 15, 2026Jun 1 – Aug 31, 2026
Q4 2026January 15, 2027Sep 1 – Dec 31, 2026

Safe Harbor Rules

You must make estimated payments if you expect to owe $1,000+ after withholding and credits,and your withholding covers less than the smaller of:

Safe Harbor TestThreshold
Current-year test90% of current year's total tax liability
Prior-year test100% of prior year's tax liability
High-income prior-year test110% if prior year AGI exceeded $150,000 ($75,000 MFS)

Underpayment penalty: The IRS charges the federal short-term rate plus 3 percentage points, compounded daily on underpaid estimates. Use Form 2210 to calculate.

Contribution & Other Deadlines

Retirement contributions, employer information returns, and several niche situations each carry their own deadlines. Missing these can mean lost tax benefits or IRS penalties.

Retirement Contribution Deadlines (Tax Year 2025)

AccountDeadline2025 Limit
Traditional / Roth IRAApril 15, 2026$7,000 ($8,000 if 50+)
HSAApril 15, 2026$4,300 self / $8,550 family
401(k) / 403(b) employee deferralDecember 31, 2025$23,500 ($31,000 if 50+)*
SEP IRA (employer)Filing deadline + extensions$70,000 or 25% of comp
Solo 401(k) employer portionFiling deadline + extensionsUp to $70,000 total

*Ages 60–63 get a super catch-up of $11,250 (total $34,750) under SECURE 2.0.

Required Minimum Distributions (RMDs)

SituationDeadlineNote
First RMD (turned 73 in 2025)April 1, 2026Delaying means 2 RMDs in 2026 — potential bracket jump
Subsequent RMDsDecember 31 each year25% penalty on amount not withdrawn (down from 50%)

Employer & Information Return Deadlines

FormDue to RecipientDue to IRS
W-2 (Wages)January 31, 2026January 31, 2026
1099-NEC (Non-employee comp)January 31, 2026January 31, 2026
1099-MISCJanuary 31, 2026February 28, 2026
1099-INT, 1099-DIVJanuary 31, 2026February 28, 2026
1099-B (Broker)February 15, 2026February 28, 2026

Special Situations

SituationRule
Farmers & fishersIf ⅔+ of gross income is from farming/fishing, one estimated payment (Jan 15) is sufficient — or file and pay by March 2, 2026 to avoid the Q4 penalty
U.S. citizens abroadAutomatic 2-month extension to June 15, 2026 to file (not to pay); attach a statement explaining qualification
Military in combat zonesAll deadlines suspended for time in the combat zone plus 180 days; penalties and interest also suspended

Stay updated: The IRS publishes Publication 509 (annual tax calendar) and maintains a searchable Tax Calendar at IRS.gov/TaxCalendar. Check for disaster relief extensions that may apply to your area.

Other Deadlines

Missing tax deadlines triggers penalties and interest. This calendar covers the full 2026 filing season for individual taxpayers — filing dates, estimated payment deadlines, retirement contribution cutoffs, and employer form due dates, all for tax year 2025.

2026 Tax Calendar at a Glance

DateDeadline
Jan 15, 2026Q4 2025 estimated tax payment due
Jan 26, 2026IRS begins accepting 2025 returns
Jan 31, 2026Employers send W-2s; 1099-NEC due to recipients and IRS
Feb 17, 2026Claim withholding exemption for 2026 (Form W-4)
Mar 2, 2026Farmers/fishers file to avoid Q4 estimated penalty
Apr 1, 2026First RMD deadline if you turned 73 in 2025
Apr 15, 2026TAX DAY — File/pay 2025 taxes, request extension, IRA/HSA contributions, Q1 2026 estimated payment
Jun 15, 2026Q2 2026 estimated tax payment; auto-extension for U.S. citizens abroad
Sep 15, 2026Q3 2026 estimated tax payment due
Oct 15, 2026Extended 2025 return deadline (Form 4868 filers)
Dec 31, 2026401(k)/403(b) employee deferrals for 2026; annual RMD deadline
Jan 15, 2027Q4 2026 estimated tax payment due

Weekend/holiday rule: If a deadline falls on a Saturday, Sunday, or legal holiday, it moves to the next business day. In 2026, April 15 is a Wednesday — no adjustment to Tax Day.

Filing & Extensions

The federal filing deadline for 2025 returns is April 15, 2026. Filing Form 4868 grants an automatic 6-month extension to file — but any taxes owed must still be paid by April 15 to avoid penalties.

What's Due on April 15

ActionDetails
File Form 1040Submit your 2025 individual return (or 1040-SR for seniors)
Pay taxes owedFull payment due even if you file an extension
Request extensionForm 4868 extends filing deadline to Oct 15 — no explanation required
IRA/HSA contributionsLast day to make contributions that count toward tax year 2025
Q1 2026 estimated paymentFirst quarterly payment for current tax year income

Late Filing & Payment Penalties

PenaltyRateCap
Failure to file5% of unpaid tax per month25%
Failure to pay0.5% of unpaid tax per month25%
Both apply?Filing penalty reduced by payment penalty amount

Extension ≠ more time to pay. An extension avoids the 5% late-filing penalty but does not stop the 0.5% late-payment penalty or interest on unpaid balances after April 15.

State & Special Situations

State deadlines: Most states follow the federal April 15 deadline, but some differ (e.g., Virginia typically allows until May 1). Check your state's tax authority for specifics.

Disaster relief: Federally-declared disasters can trigger automatic filing and payment extensions. The IRS maintains a current list by location at IRS.gov/DisasterRelief.

Estimated Tax Payments

If you have income without tax withholding (self-employment, investments, rental income), you generally must make quarterly estimated payments. The periods covered are unequal — Q2 covers only 2 months while Q4 covers 4.

2026 Estimated Payment Schedule

PaymentDue DateIncome Period
Q4 2025January 15, 2026Sep 1 – Dec 31, 2025
Q1 2026April 15, 2026Jan 1 – Mar 31, 2026
Q2 2026June 15, 2026Apr 1 – May 31, 2026
Q3 2026September 15, 2026Jun 1 – Aug 31, 2026
Q4 2026January 15, 2027Sep 1 – Dec 31, 2026

Safe Harbor Rules

You must make estimated payments if you expect to owe $1,000+ after withholding and credits,and your withholding covers less than the smaller of:

Safe Harbor TestThreshold
Current-year test90% of current year's total tax liability
Prior-year test100% of prior year's tax liability
High-income prior-year test110% if prior year AGI exceeded $150,000 ($75,000 MFS)

Underpayment penalty: The IRS charges the federal short-term rate plus 3 percentage points, compounded daily on underpaid estimates. Use Form 2210 to calculate.

Contribution & Other Deadlines

Retirement contributions, employer information returns, and several niche situations each carry their own deadlines. Missing these can mean lost tax benefits or IRS penalties.

Retirement Contribution Deadlines (Tax Year 2025)

AccountDeadline2025 Limit
Traditional / Roth IRAApril 15, 2026$7,000 ($8,000 if 50+)
HSAApril 15, 2026$4,300 self / $8,550 family
401(k) / 403(b) employee deferralDecember 31, 2025$23,500 ($31,000 if 50+)*
SEP IRA (employer)Filing deadline + extensions$70,000 or 25% of comp
Solo 401(k) employer portionFiling deadline + extensionsUp to $70,000 total

*Ages 60–63 get a super catch-up of $11,250 (total $34,750) under SECURE 2.0.

Required Minimum Distributions (RMDs)

SituationDeadlineNote
First RMD (turned 73 in 2025)April 1, 2026Delaying means 2 RMDs in 2026 — potential bracket jump
Subsequent RMDsDecember 31 each year25% penalty on amount not withdrawn (down from 50%)

Employer & Information Return Deadlines

FormDue to RecipientDue to IRS
W-2 (Wages)January 31, 2026January 31, 2026
1099-NEC (Non-employee comp)January 31, 2026January 31, 2026
1099-MISCJanuary 31, 2026February 28, 2026
1099-INT, 1099-DIVJanuary 31, 2026February 28, 2026
1099-B (Broker)February 15, 2026February 28, 2026

Special Situations

SituationRule
Farmers & fishersIf ⅔+ of gross income is from farming/fishing, one estimated payment (Jan 15) is sufficient — or file and pay by March 2, 2026 to avoid the Q4 penalty
U.S. citizens abroadAutomatic 2-month extension to June 15, 2026 to file (not to pay); attach a statement explaining qualification
Military in combat zonesAll deadlines suspended for time in the combat zone plus 180 days; penalties and interest also suspended

Stay updated: The IRS publishes Publication 509 (annual tax calendar) and maintains a searchable Tax Calendar at IRS.gov/TaxCalendar. Check for disaster relief extensions that may apply to your area.

This content is for educational and informational purposes only and does not constitute financial, tax, or legal advice. Consult a qualified professional for guidance tailored to your situation.