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Reviewed by our in-house tax team before publishing. Every figure is validated against:
Last reviewed: September 28, 2026
Self-employment tax for 2026 is paid through four estimated payments, due April 15, June 15 and September 15, 2026 and January 15, 2027, and the 2026 Form 1040 with Schedule C and Schedule SE is due Thursday, April 15, 2027. The next self-employed deadlines are October 15, 2026 for 2025 returns on extension and 2025 SEP-IRA contributions, and January 15, 2027 for the fourth-quarter payment on income earned September through December.
Key takeaways:
| Deadline | What's Due | Form / Payment |
|---|---|---|
| Thu, Oct 15, 2026 | Extended 2025 return with Schedule C and SE; 2025 SEP-IRA and solo 401(k) employer contributions for extended filers | Form 1040 |
| Thu, Dec 31, 2026 | 2026 solo 401(k) deferral election in place; equipment placed in service for a 2026 deduction | None |
| Fri, Jan 15, 2027 | Fourth 2026 estimated payment (income earned Sept 1–Dec 31); optional if you file and pay in full by Feb 1, 2027 | Form 1040-ES |
| Mon, Feb 1, 2027 | 1099-NECs to contractors you paid $2,000+ in 2026, filed with the IRS the same day; W-2s for employees | Form 1099-NEC, W-2 |
| Mon, Mar 15, 2027 | 2026 partnership and S corporation returns and K-1s; S corporation election for 2027 | Form 1065, 1120-S, 2553 |
| Thu, Apr 15, 2027 | 2026 return and balance due; first 2027 estimated payment; 2026 IRA and HSA contributions; SEP contributions if you don't extend; extension request | Form 1040, 1040-ES, 4868 |
Deadlines that land on a weekend move to the next business day, which is why the 2026 W-2 and 1099-NEC deadline is Monday, February 1, 2027.
The estimated tax due dates tool exports each installment to your calendar, and the tax deadline calendar for sole proprietors covers every federal date in one view.
Legal basis: IRC §6654 (underpayment of estimated tax), IRC §1401 (self-employment tax rates), IRC §6017 (self-employment tax returns)
Save this cheat sheet: every self-employed date from October 2026 to April 2027 in one image.
A missed or short 2026 estimated payment costs interest, not a flat fine: the IRS charges the underpayment rate on each installment from its due date until you pay, and the charge stops the day your payment arrives. The penalty is figured on Form 2210 when you file the 2026 return, and neither First Time Abate nor the IRS's new automatic penalty exemption covers it.
| Period | IRS underpayment rate |
|---|---|
| January–March 2026 | 7% |
| April–June 2026 | 6% |
| July–September 2026 | 7% |
| October–December 2026 | 7% |
Source: IRS quarterly interest rates. The rate for January–March 2027 hasn't been announced yet.
Rafael, a freelance designer, came up $2,500 short on each 2026 installment. Left unpaid until he files on April 15, 2027, the shortfalls cost about $467 at a flat 7%: $175 for the April installment, $146 for June, $102 for September and $44 for January (a little less on Form 2210, which applies the 6% second-quarter rate). If he pays the $7,500 owed for the first three installments on October 1, 2026 instead, those three charges drop from about $423 to about $134, and paying the January installment on time avoids the last $44.
Interactive
What will your underpayment cost?
Enter how much you came up short each quarter — each missed quarter runs on its own clock until you pay or file.
Required quarterly payment minus what you actually paid.
Estimated penalty
$467
Assessed automatically when you file — no separate notice, it's added straight to your tax bill on top of the balance due.
Assumes the current 7% rate (Q3 2026 — the IRS resets it quarterly; it was 6% in Q2) holds and each shortfall stays unpaid until April 15, 2027. Form 2210 counts exact days at each quarter's actual rate — catching up sooner shrinks each quarter's charge.
Model exact payment datesTo catch up, pay through IRS Direct Pay or your IRS Online Account as a 2026 estimated tax payment; the IRS applies it to the earliest underpaid installment first. If most of your 2026 income arrived late in the year, the annualized income installment method (Form 2210, Schedule AI) can shrink the penalty on the early quarters. The estimated tax penalty guide covers the waivers and Form 2210 in detail.
Here's every federal deadline that applies to self-employed individuals, organized month by month from January 2026 through April 2027. The dates through September 2026 have passed.
| Date | Deadline |
|---|---|
| Jan 15 | Q4 2025 estimated tax payment due (or file 2025 return and pay in full by Feb 2 to skip this payment) |
| Date | Deadline |
|---|---|
| Feb 2 | Clients must send you 1099-NEC forms for payments of $600+ made in 2025 (Jan 31 falls on Saturday) |
No major federal deadlines for sole proprietors or single-member LLCs.
| Date | Deadline |
|---|---|
| Apr 15 | Annual return due: Form 1040 with Schedule C and Schedule SE |
| Apr 15 | Q1 2026 estimated tax payment: covers income earned Jan 1–Mar 31 |
| Apr 15 | File Form 4868 if you need a 6-month extension to file (not to pay) |
| Apr 15 | Last day to make SEP-IRA contributions for 2025 (without an extension) |
No major federal deadlines for self-employed individuals.
| Date | Deadline |
|---|---|
| Jun 15 | Q2 2026 estimated tax payment: covers income earned Apr 1–May 31 |
No major federal deadlines for self-employed individuals.
| Date | Deadline |
|---|---|
| Sep 15 | Q3 2026 estimated tax payment: covers income earned Jun 1–Aug 31 |
| Date | Deadline |
|---|---|
| Oct 15 | Extended individual returns due (if you filed Form 4868 by April 15) |
| Oct 15 | Last day for 2025 SEP-IRA and solo 401(k) employer contributions (if you filed an extension) |
| Date | Deadline |
|---|---|
| Dec 31 | Deadline to have a 2026 solo 401(k) employee deferral election in place |
| Dec 31 | Last day to place business equipment in service for a 2026 deduction |
| Date | Deadline |
|---|---|
| Jan 15 | Q4 2026 estimated tax payment: covers income earned Sep 1–Dec 31 |
| Date | Deadline |
|---|---|
| Feb 1 | 1099-NEC deadline for 2026 payments of $2,000+, to recipients and the IRS (Jan 31 falls on Sunday) |
| Feb 1 | File your 2026 return and pay in full by this date to skip the January 15 payment |
| Date | Deadline |
|---|---|
| Mar 15 | 2026 partnership (Form 1065) and S corporation (Form 1120-S) returns and K-1s, if you own one |
| Mar 15 | Form 2553 deadline for an existing calendar-year LLC or corporation to be taxed as an S corporation for 2027 |
| Date | Deadline |
|---|---|
| Apr 15 | Annual return due: 2026 Form 1040 with Schedule C and Schedule SE, and any balance |
| Apr 15 | Q1 2027 estimated tax payment |
| Apr 15 | Last day for 2026 IRA and HSA contributions, and for 2026 SEP-IRA contributions without an extension |
| Apr 15 | File Form 4868 for an extension to October 15, 2027 (to file, not to pay) |
Quarterly payments are the backbone of self-employed tax compliance. If you expect to owe $1,000 or more in taxes for the year (after credits and withholding), you're required to make estimated payments.
Self-employment tax has no separate due date: it is paid together with income tax in the four estimated payments (April 15, June 15 and September 15, 2026 and January 15, 2027 for 2026 income), and any balance is due April 15, 2027 with Schedule SE. The IRS payment periods are uneven: January through March, April and May, June through August, and September through December, which is why the June 15 installment covers only two months of income (IRS: when to pay estimated tax).
Under the Form 1040-ES general rule, you must make 2026 estimated payments if both of these apply:
If you're a W-2 employee with a side freelance business, you may be able to increase your W-2 withholding to cover the additional tax instead of making separate quarterly payments.
Each quarterly payment covers both taxes on your profit: self-employment tax on 92.35% of net earnings, and income tax after your deductions. Here's the math for $80,000 of 2026 net profit, a single filer with no other income:
| Step | Amount |
|---|---|
| Net profit (Schedule C) | $80,000 |
| Self-employment tax: $80,000 × 92.35% × 15.3% | $11,304 |
| Taxable income after half of SE tax ($5,652), the $16,100 standard deduction and the 20% QBI deduction ($11,650) | $46,598 |
| Income tax (10% up to $12,400, 12% above) | $5,344 |
| Total 2026 tax | $16,648 |
| Each of four payments | $4,162 |
Paying 90% of that total, $3,746 a quarter, also meets the current-year safe harbor. Use the Self-Employment Tax Calculator or the 1099 Tax Calculator to estimate your quarterly amount based on your specific income and deductions.
There are two ways to avoid underpayment penalties, even if you end up owing at year-end:
Method 1: 100% of prior year tax (110% if AGI > $150,000). Pay at least as much as you owed last year, divided into four equal payments. This protects you from penalties even if your income increases significantly.
Method 2: 90% of current year tax. Pay at least 90% of what you'll actually owe for 2026, divided across your quarterly payments.
Most freelancers with growing income use Method 1: it's simpler, and you know the number in advance.
If your freelance income is uneven (say you earn $5,000 in Q1 and $40,000 in Q3), the equal quarterly payment method can feel unfair. The annualized income installment method (Form 2210, Schedule AI) lets you base each quarter's payment on the income you actually earned during that period.
This is useful for:
The tradeoff: the calculation is more complex, and you'll need to file Schedule AI with your annual return to demonstrate that your payments matched your income pattern.
Self-employment tax is separate from income tax. It funds Social Security and Medicare, the same programs funded by FICA withholding for W-2 employees. The difference: employees split the cost 50/50 with their employer. Self-employed people pay both halves.
| Component | Rate | Income Limit |
|---|---|---|
| Social Security | 12.4% | First $184,500 of net SE earnings (2026) |
| Medicare | 2.9% | No limit |
| Additional Medicare | 0.9% | Earnings over $200,000 (single) / $250,000 (MFJ) / $125,000 (MFS) |
| Combined | 15.3% | Applied to 92.35% of net earnings |
Here's the part many freelancers miss: you can deduct 50% of your self-employment tax as an above-the-line deduction on Form 1040. This reduces your adjusted gross income (AGI), which in turn reduces your income tax. It doesn't reduce your SE tax, but it does lower your overall tax bill.
This deduction is taken on Schedule 1 of Form 1040, not on Schedule C.
Schedule C is where you report your freelance or self-employment income and expenses. It attaches to your Form 1040: the 2026 Schedule C is due April 15, 2027 (October 15, 2027 with an extension), and a 2025 Schedule C on extension goes in by October 15, 2026.
What goes on Schedule C:
Schedule SE calculates your self-employment tax based on your Schedule C net profit. It's filed with your annual return on the same deadline.
The flow: Schedule C net profit → Schedule SE → self-employment tax amount → Form 1040 (both as tax owed and as the 50% deduction).
For payments made in 2026, a client who paid you $2,000 or more must send you Form 1099-NEC by February 1, 2027 (January 31, 2027 falls on a Sunday). The threshold was $600 for payments made through 2025; the One Big Beautiful Bill Act raised it to $2,000 for payments made after December 31, 2025, and the IRS says it may be adjusted for inflation starting in 2027 (IRS Form 1099-NEC instructions). The same $2,000 line and February 1 date apply if you pay subcontractors yourself; the 1099-NEC guide covers filing them.
You must report all self-employment income, whether or not you receive a 1099. This includes:
The IRS matches 1099s to tax returns. If a client reports paying you $5,000 and you don't include it on your Schedule C, expect a notice. But the reverse is equally important: income without a 1099 is still taxable.
For more on independent contractor taxes, including record-keeping and deduction strategies, see our full guide.
There's no separate deadline for the home office deduction: you claim it on Schedule C as part of your annual return. But it's worth planning for throughout the year because it requires either:
Simplified method: $5 per square foot, up to 300 square feet ($1,500 maximum deduction).
Regular method: Calculate the percentage of your home used exclusively for business, then apply that percentage to your rent/mortgage interest, utilities, insurance, repairs, and depreciation.
The key requirement: the space must be used regularly and exclusively for business. A desk in the corner of your living room where you also watch TV doesn't qualify. A spare bedroom used only as your office does.
Self-employed individuals have access to retirement accounts with contribution deadlines that differ from the tax filing deadline.
The key difference: a self-employed person's solo 401(k) deferral election has to exist by December 31. You can't decide in March to defer 2026 income, so set up the election in Q4.
If you pay for your own health insurance and aren't eligible for employer-sponsored coverage (through a spouse's job, for example), you can deduct 100% of your health, dental, and vision insurance premiums.
This deduction is taken on Form 1040, Schedule 1, not on Schedule C. It reduces your AGI, which reduces your income tax. It does not reduce your self-employment tax.
No separate deadline applies: you claim this when you file your annual return.
Most states with an income tax follow the federal estimated payment schedule:
However, some states have different due dates or different thresholds for when estimated payments are required. Check your state's department of revenue website for specifics.
Nine states have no tax on wage income: Alaska, Florida, Nevada, New Hampshire (which repealed its interest and dividends tax starting in 2025), South Dakota, Tennessee, Texas, Washington (which taxes some capital gains), and Wyoming. If you live and work in one of these states, you only need to worry about federal estimated payments.
The IRS charges an underpayment penalty under IRC §6654 if you don't pay enough estimated tax throughout the year. Here's how it works:
A freelancer earns $100,000 of net profit in 2026 and makes no quarterly payments. As a single filer taking the standard deduction and the QBI deduction, the total 2026 tax is about $22,365: $14,130 of SE tax plus $8,235 of income tax. With 90% of that as the required annual payment, each installment should have been $5,032. Paying everything on April 15, 2027 adds an underpayment penalty of about $939 at 7% ($352 + $294 + $205 + $88 across the four installments).
At Jupid we see the same pattern every spring: a freelancer's strong first year brings a tax bill they expected and an underpayment penalty they didn't. The penalty is entirely avoidable, and for freelancers who skip payments year after year, it adds up to real money.
For more details on estimated payments, including examples and worksheets, see our quarterly estimated taxes guide.
This is the most common mistake new freelancers make. The IRS requires you to pay taxes as you earn income, not all at once at year-end. If you wait until April to pay everything, you'll owe the tax plus an underpayment penalty on each quarter you missed. Set up quarterly payments from day one of self-employment.
Your 1099s don't represent all of your income. Clients who paid you under $2,000 in 2026 (under $600 in 2025) won't send a 1099. Cash payments don't come with 1099s. Foreign clients don't file US information returns. You're required to report all income on Schedule C, with or without documentation from the payer. The IRS can and does audit freelancers who underreport.
When you calculate your tax liability, don't forget that half of your self-employment tax is deductible. This is an above-the-line deduction on Form 1040: you don't need to itemize to claim it. For a freelancer with $100,000 in net profit, SE tax is about $14,130, and deducting half of it ($7,065) saves about $1,554 in income tax at a 22% marginal rate. It's automatic on your return, but many freelancers forget about it when estimating their quarterly payments.
A SEP-IRA lets you contribute up to the tax filing deadline including extensions, so you have until October 15 if you file an extension. But a solo 401(k) employee deferral election must be in place by December 31. If you're planning to maximize retirement savings and you wait until spring to decide, you've already missed the solo 401(k) deferral window. Plan in Q4.
The hard part of a January 15 estimated payment is knowing what your business actually earned since September. Jupid connects to your bank accounts and categorizes income and expenses automatically with 95.9% accuracy, so your year-to-date profit is current when a deadline arrives instead of rebuilt from statements. Ask the AI accountant in WhatsApp or iMessage what your business netted this quarter and get an answer from your real transactions in seconds, then use that profit in your estimate. Try Jupid
| Item | 2026 Amount |
|---|---|
| SE tax rate | 15.3% (12.4% SS + 2.9% Medicare) |
| Social Security wage base | $184,500 |
| Additional Medicare threshold | $200,000 (single) / $250,000 (MFJ) / $125,000 (MFS) |
| Additional Medicare rate | 0.9% |
| 1099-NEC reporting threshold | $2,000 |
| Estimated tax penalty threshold | $1,000 |
| IRS underpayment rate (Q4 2026) | 7% |
| SEP-IRA max contribution | $72,000 or 20% of net SE earnings after half of SE tax, whichever is less |
| Solo 401(k) employee deferral | $24,500 ($32,500 if age 50+; $35,750 at ages 60–63) |
| Standard deduction (single) | $16,100 |
Self-employment gives you freedom, but it also gives you responsibility for every tax obligation that an employer would normally handle. The good news: there are only four quarterly payment dates and one annual filing deadline you need to remember. The bad news: missing any of them costs you money.
Set calendar reminders two weeks before each deadline. Use a tax deadline calendar to keep everything in one place. And calculate your quarterly payments based on actual income, not a guess, so you don't end up with a surprise bill or an unnecessary overpayment.
Free download: Get the printable 2026 Tax Deadline Calendar (PDF): every federal due date for all entity types on a single page. Planning ahead? The 2027 calendar (PDF) is also available, and an interactive version with calendar exports is at jupid.com/tax-deadline-calendar.
Disclaimer
This article provides general information about 2026 self-employed tax deadlines and should not be considered tax advice. Tax deadlines can shift when they fall on weekends or holidays, and state deadlines may differ from the federal schedule. The figures cited (SE tax rates, contribution limits, thresholds) reflect 2026 values and are subject to annual adjustment. For advice specific to your situation, consult with a qualified tax professional or refer to IRS Publications 505 and 334 for official guidance.
Tax Year: 2026 Last Updated: September 28, 2026
CEO & Co-Founder
Fintech CEO with 10+ years building accounting and financial technology products. Previously co-founded and scaled an AI-powered accounting platform to $30M revenue and 100K+ business users, achieving 30,000 customers per accountant through automation — recognized by CNBC as a top fintech company. Holds a Master's in Management Information Systems. At Jupid, he leads the development of AI-native bookkeeping, tax, and compliance tools designed for freelancers and small business owners.
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