All 2025 US Tax Deadlines For Expats And International Entrepreneurs

Planning ahead for your tax filings! Be aware of the 2025 tax deadlines to file your taxes for 2024 on time.

Below are the key due dates you need to know for your tax filings for the 2023 tax year. If you are looking for help with this, check out these tips to find the best expat tax accountant for your situation.

To get expert help with your US tax filings in 2025, schedule a consultation with us.

Rather than listing all the different deadlines by month, we grouped them by target group.

• Tax Deadlines For Individuals In 2025
• Independent Contractors – Form 1099
• Tax Due Dates For Sole Proprietor And Single-Member LLC In 2025
• Deadlines For Multi-Member LLC In 2025
• Tax Due Dates For Partnership & S Corporation in 2025
• S Corporation Election Deadline
• Tax Due Dates For C Corporations
• Due Dates For Quarterly Estimated Payments
• 2025 Deadline for FBAR (FinCEN Form 114)
• State Tax Deadlines
• Get Ready To File Your 2024 Taxes

Tax Deadlines For Individuals In 2025

• April 15, 2025 – The due date for individual returns for the 2024 tax year. Interest and penalties will start accruing for any tax you owe after this date, even if you file an extension. You should make an estimated payment by April 15 to avoid interest and penalties if you owe taxes.
• June 16, 2025 – Individual tax return due if residing outside the US. (For more info, check out our US Expat Tax Guide.) This is an automatic 2-months extension to file and pay. However, interest starts accruing on April 15. If you expect to owe tax, you should make an estimated payment by April 15. 
• October 15, 2025 – The final deadline to file for individuals who requested an extension.

Independent Contractors – Form 1099

If you paid independent contractors over a certain threshold, you must provide them with a Form 1099. As a freelancer, you should receive a Form 1099-NEC (non-employee compensation) from your clients.

• January 31, 2025 – Deadline to send Form 1099-NEC to contractors

Tax Due Dates For Sole Proprietor And Single-Member LLC In 2025

Sole proprietors and single-member LLCs pass income through to the person running it and therefore have the same due dates as for individuals. See above for the due dates.

The business income is reported on Schedule C as part of the individual tax return.

Form 5472 is due on April 15, 2025, together with your company’s Form 1120. If you file an extension for your corporate tax return, Form 5472 is due together with the tax return on October 15, 2025.

Deadlines For Multi-Member LLC In 2025

Multi-member LLCs are taxed as partnerships. See below for partnership tax due dates.

Tax Due Dates For Partnership & S Corporation in 2025

Partnership on a calendar year and S Corporation:

• March 17, 2025 – Initial due date for Form 1065 with Schedule K-1 for partnerships and Form 1120S with Schedule K-1 for S corporations.
• September 15, 2025 – The final deadline for partnerships and S corporations that filed for an extension.

Partnerships with a different tax year must file tax returns by the 15th day of the third month after the tax year-end date.

S Corporation Election Deadline

• March 17, 2025 – Last day to file Form 2553 to elect to be treated as an S Corporation for the 2022 calendar year. (Learn here if an LLC or S Corp is more beneficial). Alternately, you can also elect to have your LLC treated as an S Corporation within 75 days of incorporating your business.

Tax Due Dates For C Corporations

Deadlines for filing corporate tax returns (Form 1120):

• April 15, 2025 – Initial deadline to file corporate tax returns.
• October 15, 2025 – Final deadline if you requested a 6-month extension with Form 7004.

Due Dates For Quarterly Estimated Payments

When tax payments are not automatically withheld each month, e.g., for the self-employed, you need to make quarterly estimated tax payments.

• January 15, 2025 – Last estimated tax installment for the 2024 tax year.
• April 15, 2025 – 1st installment of 2025 estimated tax.
• June 16, 2025 – 2nd installment of 2025 estimated taxes.
• September 15, 2025 – 3rd installment of 2025 estimated taxes.
• January 15, 2026 – 4th installment of 2025 estimated taxes.

2025 Deadline for FBAR (FinCEN Form 114)

US persons with foreign bank accounts must report them if they meet certain requirements.

• April 15, 2025 – The FBAR deadline corresponds to the tax deadline. However, it has an automatic extension until October 15. You file your FBAR separately from the tax return but it has the same due date as individual tax returns.
• October 15, 2025 – Extended due date, FinCEN grants an automatic extension to October 15, 2025.

State Tax Deadlines

Depending on your former home state, you may have to file a state tax return. Please check any state you have to file in. Not all state tax calendars align with the federal 2025 tax deadlines.

State tax due dates may follow the federal extended deadline but don’t have to – please check your state.

Get Ready To File Your 2024 Taxes

Start your taxes early to avoid penalties, interest, and stress. Many good expat tax accountants get incredibly busy in the weeks leading up to the deadlines. If you need help filing your expat tax return or business return, schedule a consultation with us.