2023 Tax Deadlines & 2023 Rates
Individual Tax Deadlines
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Form 1040 - Due April 15, 2024 (Inc. Extensions)
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Form 1040 w/ Extension - October 15, 2024
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Form 1040-ES Estimated Payment Vouchers
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April 15, 2024 (Voucher #1)
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June 17, 2024 (Voucher #2)
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September 16, 2024 (Voucher #3)
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January 15, 2025 (Voucher #4)
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2023 Individual Tax Rates
Standard Deduction - $13,850 (Single)
Standard Deduction - $27,700 (MFJ)
Standard Deduction - $20,800 (HOH)
Single Taxpayers
$11,000 or less
10%
$11,001- $44,725
12%
Business Tax Deadlines
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Form 1065 Partnerships - Due March 15, 2024
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Form 1065 with extension - September 15, 2024​
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Form 1120S S-Corporations - Due March 15, 2024
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Form 1120S with extension - September 15, 2024
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Form 941 - Employer Quarterly Federal Tax Return
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Q1 2024 - April 30, 2024​
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Q2 2024 - July 31, 2024
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Q3 2024 - October 31, 2024
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Q4 2024 - January 31, 2025
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Form 940 - Federal Unemployment - January 31, 2025
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Forms W2 & W3 - January 31, 2025
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Forms 1099 - Misc - January 31, 2025
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Washington State Employment Security (SUTA)
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Q1 2024 - April 30, 2024
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Q2 2024 - July 31, 2024
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Q3 2024 - October 31, 2024
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Q4 2024 - January 31, 2025
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Washington Labor and Industries (Workers Comp)​
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Q1 2024 - April 30, 2024
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Q2 2024 - July 31, 2024
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Q3 2024 - October 31, 2024
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Q4 2024- January 31, 2025
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Washington Department of Revenue​​ Excise Tax
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Varies based on business reporting requirements​ (Annual, Quarterly, or Monthly)​​
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$44,726- $95,375
22%
$95,376- $182,100
24%
$182,101- $231,250
32%
$231,251 - $578,125
35%
Over $578,125
37%
Married, Filing Joint Taxpayers
$22,00 or less
10%
2023 Corporate Tax Rates
Flat Tax Rate
21%
$22,001 - $89,450
12%
$89,451 - $190,750
22%
$190,751 - -$364,200
24%
$364,201 - -$462,500
32%
#462,501 - $693,750
35%
Over $693,750
37%
Head of Household Taxpayers
Up to #15,700
10%
$15,701 - $59,850
12%
$59,851 - $95,350
22%
$95,351 - $182,100
24%
$182,101 - $231,250
32%
$231,251 - $578,100
35%
Over $578,100
37%