O Canada: Navigating GST and Digital Tax Changes in 2026

The 2026 GST/HST Refresh: What’s New?

The big news from the CRA this year involves more money moving through the economy. Starting in July 2026, the Canadian government is boosting the Canada Groceries and Essentials Benefit (which you might know as the GST/HST credit) by 25% for the next five years.

Why does this matter to you as a seller? Because it means your Canadian customers have more spending power in their pockets. When the government offsets federal sales taxes for low-to-modest-income households, consumer spending power typically sees a nice little bump.

Additionally, there’s a 2% inflation indexation adjustment hitting in July 2026. Basically, Canada is adjusting its tax benefits to keep up with the cost of living. For international sellers, this is a signal that the Canadian market remains resilient. However, more money moving around usually means the CRA is paying closer attention to who is, and isn’t, collecting the tax they’re owed.

Closing the Loop: Digital Tax and Financial Commissions

If you think the CRA only cares about physical goods, think again. Canada is tightening the screws on the digital and financial sectors. One of the most significant changes for 2026 is that mutual fund trailing commissions are officially becoming subject to GST/HST as of July 1, 2026.

Previously, these were exempt, but the CRA has decided that these are “taxable supplies.” This reflects a broader trend in Canada: if there is a digital or financial service being rendered, the government wants its cut. If you are an international firm providing digital services or financial apps to Canadians, these shifts in “exempt” vs. “taxable” status are a clear warning that the rules are evolving. You need accounting professionals who stay current so you can focus on your business.

Do You Actually Need to Register for GST/HST?

This is the question we get most often. “I’m in London/New York, why does the CRA care about me?”

In Canada, the magic number is $30,000 CAD. If your worldwide taxable supplies (sales) exceed $30,000 CAD over four consecutive calendar quarters, you are generally required to register for GST/HST.

But wait, there’s a catch. Even if you haven’t hit that $30,000 threshold yet, you might want to register anyway. Why? Because as a Non-Resident Importer (NRI), registering for GST allows you to recover the tax you pay at the border when your goods enter the country. If you aren’t registered, that 5% GST paid at customs becomes a “sunk cost” that eats into your margins.

Registering gives you the power to:

  1. Collect GST/HST from your customers at the point of sale.
  2. Claim Input Tax Credits (ITCs) to get back the tax you paid on imports.
  3. Look Like a Local by providing proper tax invoices, which builds trust with Canadian buyers.

Selling Without a Physical Office

One of the biggest misconceptions about expanding into Canada is that you need a physical office or a Canadian director.

Spoiler alert: You don’t.

Canada has a very friendly “Non-Resident Importer” program. This allows you to act as the “Importer of Record” for your goods without having a physical footprint in the country. You can keep your team in the UK or the US and simply manage the Canadian market remotely.

This is where cross-border VAT and GST expertise comes into play. You handle the marketing and the product; we handle the paperwork. You don’t need to navigate the complexities of provincial vs. federal taxes alone, and you certainly don’t need a Canadian utility bill to get started.

A Modular Approach to Canadian Tax Services

We understand that as a growing business, you might not need a “Full Suite” of Canadian corporate accounting yet.

Maybe you just need the GST. That’s why we offer a modular service model.

We can handle your Canadian GST/HST registration and filings as a standalone service. You provide the data, and we ensure the CRA gets exactly what they need, when they need it. No more, no less. This “pay for what you need” approach is perfect for sellers who are testing the waters in the Canadian market but want to stay 100% compliant from day one.

A Quick Checklist for Your 2026 Canadian Expansion

Ready to move? Use this checklist to make sure you aren’t missing the basics:

  • Check Your Threshold: Have you crossed the $30,000 CAD mark in the last 12 months?
  • Determine Your Tax Rate: Remember, Canada uses a mix of GST (5%), PST (Provincial Sales Tax), and HST (Harmonized Sales Tax, which is a combo of both). The rate depends on where your customer is located. Ontario is 13%, BC is 12% (GST+PST), and Alberta is just 5% GST.
  • Review Your Digital Services: If you’re selling software or digital downloads, check the new “Digital Services Tax” implications for 2026.
  • Find Your “Importer of Record”: Decide if you are acting as the NRI or if you’re using a distributor.
  • Get an Expert: Connect with accounting professionals who understand Canadian tax requirements and cross-border compliance.

Why International Sellers Choose Professional Tax Support

Expanding across borders is exciting, but the paperwork can feel overwhelming. Our goal is to be your support system. We work with UK Limited Companies, US LLCs, and international brands to ensure that their global ambitions don’t get grounded by a tax audit.

We don’t just give advice; we deliver compliance. From calculating the tax due in different provinces to filing your quarterly returns with the CRA, we do the heavy lifting. This allows you to focus on what you do best: growing your brand and keeping your customers happy.

If you’re worried about the 2026 changes, like those new mutual fund commission rules or the shifting GST credits, don’t be. Change is just an opportunity for those who are prepared.

Frequently Asked Questions (FAQ)

1. Do I need a Canadian bank account to register for GST/HST?

No. You can register for GST/HST as a Non-Resident Importer without a Canadian bank account. However, having a Canadian business account can simplify your operations and make it easier to collect and remit GST/HST to the CRA.

2. What happens if I don’t register for GST/HST when I should have?

The CRA can assess you retroactively for unpaid GST/HST, plus interest and potential penalties. It’s always better to register early and stay compliant from the start.

3. How often do I need to file GST/HST returns?

This depends on your filing frequency, which the CRA determines based on your sales volume. Most businesses file quarterly, but some may file monthly or annually. Your assigned frequency will be confirmed when you register.

4. Can I claim Input Tax Credits on all my business expenses?

You can claim ITCs on most business expenses, including imports, supplies, and services. However, certain items like meals and entertainment have restrictions. Keep detailed records and invoices to support your claims.

5. Do the new 2026 GST/HST changes affect my registration requirements?

The threshold for GST/HST registration remains at $30,000 CAD. The 2026 changes primarily affect the benefit amounts and mutual fund commission taxation, not the registration threshold itself.

2026 Australian Tax Update: What UK Business Owners Need to Know

The Global Minimum Tax (GLOBE) and Your Australian Operations

One of the most significant shifts hitting the fan in 2026 is the full integration of the Global Anti-Base Erosion (GloBE) rules. Australia has aggressively moved to implement these Pillar Two rules, establishing a 15% global minimum tax.

Why this matters to you: If your UK business is part of a larger group or has substantial Australian-sourced income, the way you account for profit in Australia is now under a microscope. Even if you aren’t a massive multinational, the reporting requirements surrounding “top-up taxes” are trickling down into standard compliance checks.

The 2026 update ensures that any “low-tax” income is captured. While the UK and Australia have similar corporate tax vibes, differences in deductions and credits can accidentally trigger these rules. It is essential to maintain rigorous bookkeeping to ensure your effective tax rate is calculated accurately to avoid double taxation.

Leveraging the UK-Australia Double Tax Agreement (DTA)

The good news is that the UK-Australia Double Tax Agreement remains a powerful shield for British business owners. In 2026, understanding the nuances of this treaty is the difference between profit and loss.

The DTA is designed to prevent you from being taxed twice on the same pound (or dollar). Here are the key benefits you should be leveraging right now:

  • Zero Withholding Tax on Dividends: If your UK company holds a substantial shareholding in an Australian entity, you may qualify for a 0% withholding tax rate on dividends sent back to the UK.
  • Capped Royalties and Interest: Royalties are generally capped at 5%, and interest at 10%. If you are being charged more, your compliance setup is likely outdated.
  • Foreign Tax Credit Relief: You can often offset the tax paid to the ATO against your HMRC liabilities.

Managing these claims requires precise execution. We see many businesses fail to file the correct treaty relief forms, leading to “trapped” cash in Australia. At Sterlinx Global, we manage these financial reports and compliance filings daily to ensure your cash flow remains fluid across borders.

The “Permanent Establishment” Trap in 2026

Are you taxable in Australia even if you don’t have an office there? In 2026, the answer is increasingly “Yes.” The ATO has tightened its definition of a Permanent Establishment (PE).

If you have employees working remotely from the Gold Coast, or if you maintain a significant inventory of stock in an Australian warehouse, the ATO may deem you to have a taxable presence.

Don’t worry, here is the checklist to avoid surprises:

  1. Monitor Employee Duration: The “183-day rule” is a standard benchmark, but 2026 interpretations also look at the nature of the work being done.
  2. Review Contract Signing: If a person in Australia has the authority to habitually conclude contracts on behalf of your UK company, you likely have a PE.
  3. Check Your Inventory: Physical stock held for distribution can trigger GST and income tax obligations.

To mitigate these risks, advanced financial forecasting is vital. Knowing your exposure before the tax year ends allows for structural adjustments that keep you compliant without overpaying.

GST and Cross-Border Digital Services

For UK digital agencies, SaaS providers, and consultants, the 2026 Australian tax landscape requires a keen eye on Goods and Services Tax (GST). Australia requires non-resident businesses to register for GST if their “GST turnover” from sales connected with Australia is $75,000 AUD or more.

In 2026, the ATO has increased its data-sharing capabilities with HMRC. This means that “flying under the radar” is no longer a viable strategy. If you hit that threshold, you must:

  • Register for GST.
  • Charge 10% on your taxable supplies.
  • File Business Activity Statements (BAS).

This is exactly where Sterlinx Global steps in. Instead of you trying to navigate the ATO’s “myGovID” system from London, we handle the registration and ongoing filings. We act as your end-to-end compliance suite, ensuring that your cash flow management accounts for these international tax outflows.

Why Compliance Is Your Competitive Advantage

You might see tax as a burden, but in 2026, being fully compliant is a competitive advantage. Australian partners and customers are increasingly diligent. They want to see that the UK companies they deal with are registered, transparent, and stable.

Maintaining a clean “tax health” record allows you to:

  • Secure better terms with Australian banks and suppliers.
  • Avoid the massive penalties and interest charges that the ATO is known for.
  • Streamline your year-end accounts back in the UK.

Whether you are managing student fees for an international education branch or selling high-end tech, the principles remain the same: clean data in, compliant filings out.

How Sterlinx Global Simplifies Your Global Reach

Expanding to Australia shouldn’t mean hiring a whole new department. Our operating model at Sterlinx Global is simple: you provide us with the data, and we complete the compliance on an ongoing, daily basis.

We cover the full suite of accounting and compliance for UK Limited Companies and their Australian counterparts. This includes:

  • Daily Bookkeeping: Keeping your Australian and UK books in sync.
  • GST/VAT Filings: Handling the ATO and HMRC simultaneously.
  • Year-End Accounts: Seamlessly consolidating your global position.

If you are concerned about how the 2026 updates affect your specific setup, it is time to stop guessing. You can talk to an expert today to see how we can take the compliance weight off your shoulders.

FAQ: 2026 Australian Tax for UK Businesses

1. Does a UK company need an Australian TFN (Tax File Number)?

If your UK business is earning Australian-sourced income or has a Permanent Establishment in Australia, you will need to obtain an Australian Tax File Number from the ATO.

The Ultimate Guide to Ireland & EU Tax Updates: Everything You Need to Succeed in 2026

The Ultimate Guide to Ireland & EU Tax Updates: Everything You Need to Succeed in 2026

Ireland’s Personal Tax Landscape: More Room to Breathe

Ireland has introduced several measures to help individuals and business owners keep more of what they earn. While the core income tax rates remain stable, the thresholds for supplementary taxes have shifted in your favor.

Benefit from the USC Band Extension

The Universal Social Charge (USC) is a significant factor for anyone drawing a salary in Ireland. For 2026, the 2% USC rate band has been extended by €1,318. This means the 2% rate now applies to income up to €28,700 (increased from €27,382). While it might seem like a small adjustment, these incremental changes help reduce the overall effective tax rate for your team and yourself.

Optimized BIK for Company Cars

If your business provides vehicles, pay close attention to the Benefit-in-Kind (BIK) changes. The temporary reduction in the original market value (OMV) used for BIK calculations is tapering. For 2026, the reduction is set at €10,000. If you are looking to refresh your fleet, focusing on Category A1 electric vehicles (EVs) remains the smartest move. VRT relief for EVs has been extended through December 31, 2026, ensuring that green choices remain tax-efficient.

Boosting Innovation: The 35% R&D Tax Credit

Ireland continues to solidify its reputation as a hub for innovation. If your company is involved in developing new products, software, or processes, 2026 is your year to invest heavily in research and development.

Claim More with the 35% Rate

The R&D tax credit has officially increased from 30% to 35%. This is a substantial jump that provides a significant cash-flow boost for startups and established tech firms alike. Furthermore, the first-year payment threshold has been raised to €87,500 (up from €75,000).

What you need to do:

  1. Track every expense: Ensure your bookkeeping is meticulous.
  2. Submit early: Use the higher threshold to reclaim more cash in your first-year filing.
  3. Partner with experts: We manage these calculations daily to ensure you don’t leave money on the table.

Fueling Growth with Entrepreneur Relief

For founders looking toward an eventual exit or restructuring, the lifetime limit for Entrepreneur Relief has seen a welcome increase. As of January 1, 2026, the limit for qualifying gains has risen from €1 million to €1.5 million.

This relief allows individuals to benefit from a reduced Capital Gains Tax (CGT) rate of 10% on the disposal of qualifying business assets. This €500,000 increase in the limit is designed to encourage long-term investment in the Irish business ecosystem. If you are considering company formation for non-UK residents or expanding your Irish footprint, this makes Ireland an even more attractive jurisdiction for asset growth.

The EU VAT Landscape: Moving Toward “ViDA”

In the broader European Union, 2026 is a big “systems year” for VAT. Rates are shifting in a few countries, customs rules are tightening for imports, and several member states are pushing ahead with phased mandatory e-invoicing under the wider “VAT in the Digital Age” (ViDA) direction. Don’t worry—once you build a clean process, staying compliant becomes routine.

Keep Your VAT Rates Current (Some Countries Changed for 2026)

VAT isn’t changing everywhere, but a few member states have made 2026 adjustments that can affect your pricing, margins, and OSS calculations—especially if you sell B2C across borders.

What to do now (to avoid under/over-charging VAT):

  • Slovakia: Note that several categories of goods have moved to higher VAT treatment as of early 2026. Review your product tax mapping for Slovakian sales immediately.
  • Lithuania & Latvia: Reduced/targeted rates have been adjusted for 2026 in specific sectors/product groups. Validate your VAT mapping if you sell mixed baskets.
  • Finland: VAT rate changes for specific luxury and service categories are now in effect for 2026. Ensure your invoicing reflects these new percentages.

If you want, we can help you set up rate logic in your bookkeeping and VAT workflow so your returns match what you collected—this saves time and reduces audit risk.

Single VAT Registration in the EU (OSS/IOSS Still Matter)

The EU continues to expand use of the One-Stop Shop (OSS) and Import One-Stop Shop (IOSS). This reduces the need for multiple registrations if you sell B2C to customers across member states.

However, if you hold physical inventory in multiple countries—think Amazon FBA or 3PL stock in Germany, France, or Spain—you still need local VAT registrations and local filings. We support VAT-only services across the EU (registrations + returns), including VAT registration in Sweden and other key hubs, with a structured, month-by-month filing process.

Budget for Duty on Every Import (The €150 Threshold Is Gone)

The EU has removed the €150 customs duty exemption for e-commerce imports. In practical terms, all imports can now be subject to customs duty, not just VAT.

Customs Duty Reminder: With the €150 duty exemption gone, every ecommerce shipment into the EU now carries potential duty costs. Ensure your checkout calculations are “landed-cost” ready to avoid delivery friction.

Do this to protect your margins and delivery promises:

  • Rework landed-cost calculations (product cost + freight + duty + import VAT).
  • Check your Incoterms (DDP vs DAP) so you know whether you or the customer is paying duty.
  • Align IOSS and customs data (product descriptions, HS codes, values) to reduce clearance delays and “surprise” charges.

Get Ready for Mandatory E-Invoicing (Phased Rollouts Across Key EU Markets)

Several EU countries are rolling out mandatory e-invoicing in phases—especially for B2B—so your invoicing and ERP setup needs to be ready before you expand or start holding stock locally.

Countries with phased mandates progressing through 2026 include:

  • France
  • Greece
  • Croatia
  • Germany
  • Poland

Your action checklist (to avoid rejected invoices and payment delays):

  1. Confirm where you sell B2B vs B2C (rules typically hit B2B first).
  2. Make sure invoices are structured and compliant (format, required fields, buyer VAT IDs).
  3. Keep a single source of truth between invoicing, bookkeeping, and VAT reporting.
News Flash: HMRC Updates VAT Penalties for Late Filings – What You Need to Know

News Flash: HMRC Updates VAT Penalties for Late Filings – What You Need to Know

The Points-Based System: How Late Submissions Accumulate

HMRC now uses a points-based system for late VAT returns. This system treats every late submission as a “point.” Once you hit a specific threshold based on your filing frequency, you are hit with a mandatory £200 financial penalty.

MTD Income Tax (ITSA) heads-up: A similar penalty points system begins from 6 April 2026 for sole traders and landlords mandated into MTD ITSA (starting with those with qualifying income over £50,000). HMRC has described a “soft landing” in 2026/27, meaning the first year is intended to be more supportive while you get used to quarterly digital reporting—still, don’t rely on that as a free pass. Build the habit early.

Understanding Your Thresholds

The number of points you can accumulate before a financial penalty is triggered depends on how often you file:

  • Annual Filers: 2-point threshold.
  • Quarterly Filers: 4-point threshold.
  • Monthly Filers: 5-point threshold.

For every late submission after you hit the threshold, you will receive an additional £200 fine. The points do not reset automatically just because you paid the fine; you must meet specific “compliance periods” to reset your score to zero. This makes consistent, daily data management essential.

Late Payment Penalties: The Tiered Cost of Delay

While the points system handles submissions, a separate tiered system handles late payments. HMRC has removed the old “default surcharge” and replaced it with a system that ramps up quickly the longer a balance stays unpaid.

  1. Up to 15 Days Late: You will not be charged a late payment penalty if you pay in full within this grace period, but you will still be charged HMRC late payment interest (this moved to Bank of England base rate + 4% from 6 April 2025, so it’s materially higher than it used to be).
  2. Between 16 and 30 Days Late: A first penalty of 2% is calculated on the amount you owe at day 15.
  3. 31 Days or More Late: You get a first penalty of 2% (on the day 15 balance) plus a second penalty of 2% (on the day 30 balance). On top of that, HMRC can charge a second penalty that accrues daily. From 1 April 2025, that ongoing “day 31 onwards” penalty rate increased sharply and can be up to 10% per annum on long-term unpaid tax.

From April 2026 and moving into 2026/2027, the direction of travel is clear: HMRC is pushing harder on payment discipline. If you are scaling fast, these extra percentages (plus interest) can eat into cash flow quicker than most directors expect.

Feb 2026 Audit Note: HMRC’s approach is now “file and pay on time or pay for it.” With higher interest (base rate + 4%) and an ongoing late payment penalty that can reach ~10% per annum from day 31, long-running tax debt is getting expensive—fast.

Why This Matters for UK Limited Company Accounting

For a UK limited company accounting structure, compliance is a reflection of the business’s health. Late filings and accumulated penalty points can flag your company for further investigation or audits.

Cash Flow Disruption

Penalties and interest are non-deductible expenses. Every pound paid to HMRC in fines is a pound taken directly from your net profit. For businesses scaling rapidly, especially in the competitive retail or service sectors, losing 4% of a large VAT bill to penalties can disrupt stock purchasing or payroll.

Reputation with HMRC

HMRC maintains a record of your compliance history. Consistent late filing makes it much harder to negotiate “Time to Pay” arrangements if you ever face a genuine financial crisis. By staying compliant now, you build the “trust equity” you might need later.

Immediate Steps to Avoid VAT Penalties

You do not need to be a tax expert to avoid these fines, but you do need a system. If you are looking for an ecommerce accountant or a general compliance partner, you should ensure they follow these steps:

1. Centralize Your Financial Data

Whether you use Shopify, Amazon, or traditional invoicing, all data must flow into a central system daily. Waiting until the end of the quarter to “gather receipts” is the fastest way to miss a deadline.

2. Monitor Your Points Total

Check your HMRC online account regularly. If you have already incurred points, you must be hyper-vigilant. To reset your points, you generally need to file all returns on time for a full year and ensure all outstanding returns from the previous 24 months are submitted.

3. Act Quickly on Payment Difficulties

If you realize you cannot pay your VAT bill, do not simply ignore the filing. Always file your return on time. Filing on time avoids the submission points, even if the payment is late. Once filed, contact HMRC immediately to propose a Time to Pay (TTP) arrangement. If an agreement is reached, the late payment penalty is usually suspended.

How Professional Compliance Services Protect Your Business

Professional compliance services don’t just “advise” on tax; they execute the compliance. They act as the engine room that keeps your business running smoothly across borders. A structured, data-led approach is designed to eliminate the risk of HMRC penalties.

Full Suite Compliance in the UK

For clients in the UK, Ireland, USA, Canada, and Australia, a comprehensive Full Compliance Suite should include:

  • Ongoing Bookkeeping: Data is processed as it happens, not months later.
  • Precise Tax Calculations: Ensuring your VAT, GST, or Sales Tax is calculated accurately to avoid overpayment or underpayment.
  • Timely Filings: Submissions are handled well ahead of the deadline to ensure you never accumulate penalty points.
  • Year-End Accounts: Managing the full cycle, from daily entries to year-end statutory filings.

Expanding into Europe

If your business is expanding into Germany, France, Italy, Spain, or the Netherlands, specialist VAT compliance services ensure your VAT registrations and VAT filings are handled by specialists in each jurisdiction.

The Cost of Inaction vs. The Cost of Professional Support

The choice is simple: invest in getting it right from the start, or pay penalties, interest, and reputational damage later. In today’s enforcement environment, prevention is far cheaper than the cure.

The Ultimate Guide to 2026 IRS Deadlines: Everything International Sellers Need to Succeed

The Ultimate Guide to 2026 IRS Deadlines: Everything International Sellers Need to Succeed

The Big Myth: Filing vs. Paying

Before we dive into the dates, let’s clear up the biggest misconception in US taxation. An extension to file is not an extension to pay.

Even if you successfully request an extension to move your filing date to October, the IRS expects every penny of tax owed to be paid by April 15, 2026. If you miss that payment date, the interest starts accruing immediately. Don’t let a paperwork delay turn into a debt trap.

March 16, 2026: The First Major Hurdle

For many business structures, the first “finish line” isn’t in April: it’s in March. Because March 15 falls on a Sunday in 2026, the deadline moves to the next business day.

Who needs to act now?

  • S-Corporations (Form 1120-S): If you’ve elected S-Corp status, your return is due now.
  • Partnerships (Form 1065): This includes multi-member LLCs that haven’t elected to be treated as corporations.

The Strategy: If you aren’t ready to file, you must submit Form 7004 by this date to request a six-month extension. Doing this pushes your filing deadline to September 15, 2026. However, remember the rule above: pay any estimated taxes now to avoid the IRS “late payment” sting.

April 15, 2026: The Critical Deadline for Everyone

This is the day the US tax world revolves around. It is the final deadline for several key groups and the mandatory payment date for almost everyone else.

1. C-Corporations (Form 1120)

If your international business operates as a US C-Corp, your federal income tax return is due today. C-Corps are popular for international sellers looking to reinvest profits or eventually seek VC funding, but they come with strict annual filing requirements.

2. Sole Proprietorships and Single-Member LLCs

If you are an individual seller or a “disregarded entity” (a single-member LLC that hasn’t chosen to be taxed as a corp), your personal tax return (Form 1040 or 1040-NR) is due today.

3. Estimated Tax Payments (Q1 2026)

Success breeds tax obligations. If you expect to owe more than $1,000 in taxes for the 2026 tax year, your first quarterly estimated payment is due today. Keeping up with these keeps your cash flow predictable and avoids year-end “tax shock.”

4. Extension Requests (Form 4868)

If you are an individual (including sole proprietors) and need more time, you must file Form 4868 by today. This grants you an extension to file until October 15, 2026.

The “Invisible” Deadline: Form 5472 for International Owners

This is where many international sellers get caught out. If you own a US LLC that is “foreign-owned” (at least 25% owned by a non-US person) and it is a disregarded entity, you have a specific reporting requirement.

You must file Form 5472 along with a pro-forma Form 1120. The IRS uses this to track transactions between the US company and its foreign owner.

  • The Penalty for Missing This: In recent years, the penalty for failing to file Form 5472 or filing it incorrectly has started at $25,000.

Don’t guess on this one. If you are an international seller with a US entity, talk to an expert to ensure your Form 5472 is handled correctly.

June 15, 2026: The Expat Advantage

If you are a US citizen or resident alien living and working outside the United States on the April 15 deadline, you get a “free” two-month extension to file your return. You don’t even need to file a form to get this; it is automatic.

The Catch: Again, the IRS is hungry for its money. Interest on any unpaid tax still starts accruing from April 15. If you owe money, the June extension only helps you avoid the “failure to file” penalty, not the “failure to pay” interest.

October 15, 2026: The Final Countdown

If you filed for an extension back in April, today is the day. There are no further extensions for 2025 tax year returns.

FBAR (Foreign Bank Account Report)

This is arguably the most important date for international sellers with global footprints. If you had a financial interest in or signature authority over foreign financial accounts (including bank accounts, brokerage accounts, etc.) that exceeded $10,000 at any time during the 2025 calendar year, you must file FinCEN Form 114.

While the official deadline is April 15, the IRS grants an automatic 6-month extension to October 15 for everyone. You do not need to request this extension; it’s yours by default.

Checklist for International Sellers in 2026

To ensure you stay compliant and keep your business running smoothly, follow this operational checklist:

  1. Reconcile your books monthly: Don’t wait until March to look at your 2025 data. Accurate bookkeeping throughout the year makes tax season a breeze.
  2. Confirm your entity type: Are you a disregarded LLC, a C-Corp, or a Partnership? Your deadline depends entirely on this classification.
  3. Track “Reportable Transactions”: For Form 5472 purposes, keep a log of every time you move money between your personal foreign account and your US business account.
  4. Check your Sales Tax Nexus: Income tax is only half the battle. Ensure you are also tracking where you have “nexus” for US Sales Tax. Physical or economic presence triggers filing requirements.
  5. Gather Foreign Bank Data: Start collecting the highest balance of every non-US account held in 2025 for your FBAR filing.