International founders running entities across two or more jurisdictions face a compliance calendar that no single advisor fully tracks. The US corporate accountant watches Delaware and IRS deadlines. The UK corporate secretary watches Companies House. The Estonian contact person watches the Business Register. Each advisor knows their slice, but the founder is the only person tracking the whole calendar. Missing a single filing can trigger penalties, loss of good standing, or compounding compliance problems that take months to unwind.
This guide is the consolidated compliance calendar for international founders in 2026, covering entity maintenance, tax filings, beneficial ownership reporting, and VAT obligations across the United States, United Kingdom, European Union, United Arab Emirates, Singapore, Estonia, Germany, and Ireland. The calendar assumes a calendar-year tax year where applicable and reflects current deadlines as published by the Internal Revenue Service, HM Revenue and Customs, Companies House, the European Commission, the UAE Federal Tax Authority, the Inland Revenue Authority of Singapore, the Estonian Tax and Customs Board, the German Bundeszentralamt fur Steuern, and Irish Revenue.
Why Multi-Jurisdiction Compliance Fails
Compliance failures in international structures rarely come from ignorance. They come from the gap between advisors. Each local advisor tracks their jurisdiction. No single person assembles the global calendar. The founder, who is the only party with full visibility, is typically also the person with the least time to track deadlines.
The result is predictable: a Delaware franchise tax missed in year two, a UK confirmation statement missed in year three, a US Form 5472 missed in year four, a UAE corporate tax return missed in year five. Each miss compounds. Lost good standing requires reinstatement filings. Late tax returns trigger penalties. Missed beneficial ownership reports in some jurisdictions can result in director disqualification.
The compliance problem is not that the rules are complex. The rules are each individually manageable. The problem is that nobody owns the consolidated calendar. Founders who delegate compliance entirely to advisors and do not maintain their own master calendar inevitably miss filings during advisor transitions, holidays, or periods of growth when advisors are overwhelmed.
The Solution: Master Calendar
The founder (or a delegated Chief of Staff or Operations lead) maintains a single master calendar covering all filings in all jurisdictions. The calendar tracks:
- Filing deadline (with a buffer reminder 30 days before)
- Responsible advisor (name and contact)
- Required documents (collected throughout the year)
- Fee amount (budgeted)
- Filing confirmation (tracked in a completed log)
For 2 to 5 entities, a shared spreadsheet with calendar alerts is sufficient. For 6 or more entities, dedicated compliance management software is worth the cost.
US Entity Compliance Calendar
Delaware Corporation
| Date | Filing | Authority | Fee |
|---|---|---|---|
| March 1 | Annual Franchise Tax Report | Delaware Division of Corporations | Minimum 175 USD (Authorized Shares) or 400 USD (Assumed Par Value), max 200,000 USD |
| March 1 | Annual Report | Delaware Division of Corporations | 50 USD |
| April 15 | Federal Form 1120 (C Corp) or Form 1120-S (S Corp) | IRS | No fee |
| April 15 | Delaware Corporate Income Tax Return | Delaware Division of Revenue | Only if Delaware nexus |
| Quarterly | Form 1120-W estimated tax payments | IRS | April 15, June 15, September 15, December 15 |
Delaware LLC
| Date | Filing | Authority | Fee |
|---|---|---|---|
| June 1 | Annual Franchise Tax | Delaware Division of Corporations | 300 USD flat |
| April 15 | Federal Form 1065 (multi-member) | IRS | No fee |
| April 15 | Schedule C filed with Form 1040 (single-member disregarded) | IRS | No fee |
Wyoming LLC
| Date | Filing | Authority | Fee |
|---|---|---|---|
| First day of anniversary month | Annual Report | Wyoming Secretary of State | 62 USD minimum (or 0.0002 of Wyoming assets) |
Nevada LLC
| Date | Filing | Authority | Fee |
|---|---|---|---|
| Anniversary month | Annual List of Managers | Nevada Secretary of State | 150 USD |
| Anniversary month | Business License Renewal | Nevada Secretary of State | 425 USD |
US Federal Tax Filings for Foreign-Owned Entities
| Date | Filing | Authority | Applicability |
|---|---|---|---|
| April 15 (extended to October 15) | Form 5472 + Pro Forma 1120 | IRS | 25%+ foreign-owned US corporation or disregarded entity with reportable transactions |
| April 15 (extended to October 15) | Form 5471 | IRS | US person controlling foreign corporation |
| April 15 (extended to October 15) | Form 8865 | IRS | US person controlling foreign partnership |
| June 30 | FBAR (FinCEN Form 114) | FinCEN | US person with signature authority over foreign accounts over 10,000 USD |
The Form 5472 penalty is 25,000 USD per form, per year. This is one of the most commonly missed filings among international founders because the form is required even for single-member LLCs treated as disregarded entities, which often do not file a federal tax return otherwise.
Beneficial Ownership Reporting (CTA)
The Corporate Transparency Act requires most US LLCs and corporations to report beneficial ownership to FinCEN. As of March 2025, FinCEN suspended enforcement of BOI reporting for most domestic reporting companies pending ongoing rulemaking and litigation. Foreign-owned entities should monitor FinCEN guidance for current requirements. When active, initial reports were due 30 days after formation and changes reported within 30 days.
United Kingdom Entity Compliance Calendar
UK Limited Company
| Date | Filing | Authority | Fee |
|---|---|---|---|
| Within 14 days of review period end | Confirmation Statement | Companies House | 34 GBP online (2024 increase) |
| 9 months after fiscal year end | Annual Accounts | Companies House | No fee (penalties for late filing) |
| 12 months after fiscal year end | Corporation Tax Return (Form CT600) | HMRC | No fee |
| 9 months and 1 day after fiscal year end | Corporation Tax Payment | HMRC | Payment deadline, varies |
| Within 7 days of month end (or quarterly) | VAT Return | HMRC | If VAT registered, above 90,000 GBP turnover threshold |
| 31 January | Self Assessment tax return (if director) | HMRC | 100 GBP late filing penalty |
UK Corporation Tax Payment Quarters
For companies with profits above 1.5 million GBP, corporation tax is paid in quarterly installments rather than a single annual payment. Installment deadlines fall on the 14th day of months 7, 10, 13, and 16 after the start of the accounting period.
PSC Register (People with Significant Control)
The UK requires companies to maintain and update a PSC register, reporting individuals or entities with significant control (over 25 percent shares or voting rights, right to appoint directors, or other significant influence). PSC changes must be reported to Companies House within 14 days.
European Union Entity Compliance Calendar
Estonia OU
| Date | Filing | Authority | Fee |
|---|---|---|---|
| 6 months after fiscal year end (typically June 30 for calendar year) | Annual Report | Estonian Business Register | No filing fee |
| 10th of each month | Monthly tax declaration (TSD) | Estonian Tax and Customs Board | If employees or payments to residents |
| 20th of each month | VAT return (KMD) | Estonian Tax and Customs Board | If VAT registered |
| 20th of the month following a quarter | VAT OSS return | Estonian Tax and Customs Board | If registered for OSS |
Estonian income tax is only due on distributed profits. A holding year without distributions has no Estonian corporate income tax obligation, but the annual report filing is still mandatory.
Ireland Ltd
| Date | Filing | Authority | Fee |
|---|---|---|---|
| Annual Return Date | Form B1 Annual Return with Financial Statements | Companies Registration Office | 20 EUR online |
| 9 months after fiscal year end | Corporation Tax Return (Form CT1) | Irish Revenue | No fee |
| Specific return period end | VAT Returns | Irish Revenue | Bimonthly by default |
| Various | Preliminary corporation tax payments | Irish Revenue | Large companies 31st day of month 6; small companies 31st day of month 11 |
Germany GmbH
| Date | Filing | Authority | Fee |
|---|---|---|---|
| July 31 of year following fiscal year end | Annual financial statements | Local Handelsregister | Varies by land |
| July 31 (extended with tax advisor to end of February of following year) | Corporate Income Tax Return (Korperschaftsteuererklarung) | Finanzamt | No fee |
| July 31 (extended with tax advisor) | Trade Tax Return (Gewerbesteuererklarung) | Local Finanzamt | No fee |
| 10th of each month | VAT preliminary return (Umsatzsteuervoranmeldung) | Finanzamt | Monthly or quarterly |
| July 31 | Annual VAT return | Finanzamt | No fee |
Germany's compliance burden is among the highest in Europe. Most GmbHs engage a Steuerberater (tax advisor) to manage monthly and annual filings. The cost is typically 3,000 to 10,000 EUR per year for small GmbHs.
EU VAT One Stop Shop (OSS)
For companies selling B2C digital services, goods below 150 EUR intrinsic value, or other eligible transactions across multiple EU countries:
| Date | Filing | Authority |
|---|---|---|
| January 31 | Q4 OSS VAT Return | OSS registration state |
| April 30 | Q1 OSS VAT Return | OSS registration state |
| July 31 | Q2 OSS VAT Return | OSS registration state |
| October 31 | Q3 OSS VAT Return | OSS registration state |
For broader context on VAT compliance across multi-jurisdiction businesses, see the Corpy guide on best countries to incorporate for SaaS startups.
United Arab Emirates Compliance Calendar
UAE Free Zone or Mainland Entity
| Date | Filing | Authority | Fee |
|---|---|---|---|
| Annual (anniversary) | Trade License Renewal | Relevant free zone or DED | Varies (5,000 to 30,000 AED) |
| 9 months after fiscal year end | Corporate Tax Return | Federal Tax Authority | No fee |
| 28 days after tax period | VAT Return | Federal Tax Authority | If VAT registered, quarterly or monthly |
| Annual | Economic Substance Report | Federal Tax Authority (via relevant authority) | If conducting relevant activities |
| Annual | Ultimate Beneficial Owner (UBO) updates | Relevant free zone authority | No fee (filing required) |
The UAE corporate tax at 9 percent became effective for fiscal years starting June 1, 2023. The 0 percent rate for Qualifying Free Zone Persons continues subject to substance and qualifying income requirements under Cabinet Decision 55 and Cabinet Decision 100. For detailed analysis of UAE free zone options, see the Corpy guide on ADGM vs DIFC: which UAE free zone is right.
Singapore Compliance Calendar
Singapore Private Limited (Pte Ltd)
| Date | Filing | Authority | Fee |
|---|---|---|---|
| 6 months after fiscal year end | Annual General Meeting | Internal | No fee |
| 7 months after fiscal year end | Annual Return (via BizFile+) | ACRA | 60 SGD |
| November 30 | Corporate Income Tax Return (Form C-S or C) | IRAS | No fee |
| 1 month after end of accounting period | GST Return | IRAS | If GST registered, quarterly or monthly |
| March 1, June 1, September 1, December 1 | Estimated Chargeable Income | IRAS | No fee, quarterly |
Singapore requires a locally resident director, annual general meetings (can be dispensed with via member resolution for exempt private companies), and filing of audited financial statements for certain companies (audit exemption available for small companies meeting two of three criteria: annual revenue under 10 million SGD, total assets under 10 million SGD, employees under 50).
Month-by-Month Master Calendar
This consolidated calendar assumes a calendar-year fiscal year (January 1 to December 31) for all entities. Adjust deadlines proportionally for non-calendar fiscal years.
January
- January 10: German VAT preliminary return (December)
- January 20: Estonian VAT return (December)
- January 31: UK Self Assessment tax return (prior year)
- January 31: OSS Q4 VAT return
- January 31: UK PAYE/NICs (if applicable, monthly)
- Ongoing: UBO/PSC register reviews
February
- February 10: German VAT preliminary return (January)
- February 20: Estonian VAT return (January)
- Ongoing: Delaware franchise tax preparation (due March 1)
March
- March 1: Delaware Corporation Annual Franchise Tax and Annual Report
- March 10: German VAT preliminary return (February)
- March 20: Estonian VAT return (February)
- March 31: Q1 UAE VAT return (if quarterly filer and calendar quarter)
April
- April 10: German VAT preliminary return (March)
- April 15: US Federal Form 1120, 1120-S, 1065 (calendar year)
- April 15: US federal Forms 5471, 5472, 8865
- April 15: US federal Q1 estimated tax payment
- April 20: Estonian VAT return (March)
- April 30: OSS Q1 VAT return
May
- May 10: German VAT preliminary return (April)
- May 20: Estonian VAT return (April)
June
- June 1: Delaware LLC Annual Franchise Tax
- June 10: German VAT preliminary return (May)
- June 15: US federal Q2 estimated tax payment
- June 20: Estonian VAT return (May)
- June 30: Estonia annual report (if calendar year)
- June 30: FBAR (US persons)
July
- July 10: German VAT preliminary return (June)
- July 20: Estonian VAT return (June)
- July 31: OSS Q2 VAT return
- July 31: Germany annual financial statements (standard deadline, extendable)
- July 31: Germany corporate and trade tax returns (standard deadline, extendable)
- July 31: Germany annual VAT return
August
- August 10: German VAT preliminary return (July)
- August 20: Estonian VAT return (July)
September
- September 10: German VAT preliminary return (August)
- September 15: US federal Q3 estimated tax payment
- September 15: US federal tax return extended deadline (Form 1065, 1120-S for calendar year)
- September 20: Estonian VAT return (August)
- September 30: UK corporation tax (for companies with accounting period ending December 31 of prior year)
- September 30: UK annual accounts (for companies with year end December 31 of prior year)
October
- October 10: German VAT preliminary return (September)
- October 15: US federal tax return extended deadline (Form 1120 for calendar year)
- October 20: Estonian VAT return (September)
- October 31: OSS Q3 VAT return
November
- November 10: German VAT preliminary return (October)
- November 20: Estonian VAT return (October)
- November 30: Singapore corporate income tax return
December
- December 10: German VAT preliminary return (November)
- December 15: US federal Q4 estimated tax payment (corporations)
- December 20: Estonian VAT return (November)
- December 31: UK corporation tax (for companies with accounting period ending March 31)
- Ongoing: Year-end tax planning, intercompany true-ups, UBO updates
Beneficial Ownership Reporting Summary
Multiple jurisdictions have introduced beneficial ownership reporting in recent years. Deadlines for updates after changes in ownership:
| Jurisdiction | Beneficial Ownership Register | Update Deadline |
|---|---|---|
| United States (CTA) | FinCEN BOI | 30 days from change (subject to current enforcement status) |
| United Kingdom | PSC register | 14 days internal, then 14 days to Companies House |
| European Union member states | Varies by state | Typically 30 days |
| Estonia | Beneficial Owners Register | 30 days |
| Ireland | Central Register of Beneficial Ownership | 14 days |
| Singapore | Register of Registrable Controllers | 2 business days |
| UAE | UBO register (per free zone or DED) | Typically 15 to 30 days |
For a comprehensive global view of beneficial ownership rules, see the Corpy guide on beneficial ownership reporting requirements.
Common Penalties for Missed Filings
| Filing Missed | Typical Penalty |
|---|---|
| Delaware franchise tax (Corporation) | 200 USD penalty + 1.5%/month interest |
| Delaware franchise tax (LLC) | 200 USD penalty + 1.5%/month interest |
| UK confirmation statement | Risk of company being struck off |
| UK annual accounts (late) | 150 GBP (less than 1 month) to 7,500 GBP (over 12 months), doubled for consecutive years |
| US Form 5472 | 25,000 USD per form, per year |
| US Form 5471 | 10,000 USD initial, 10,000 USD per month continuation (capped at 50,000 USD) |
| Estonia annual report | Compelled filing; risk of forced dissolution |
| Germany annual financial statements | 2,500 to 25,000 EUR administrative fines |
| Singapore annual return | 300 SGD plus director disqualification risk |
| UAE corporate tax return | 500 AED per day |
The Form 5472 penalty is the single harshest penalty most international founders face. The 25,000 USD applies per form, per year, even if no tax is owed. A founder with a US LLC and three years of missed Form 5472 faces 75,000 USD in penalties (three years x one form per year).
Systems for Staying Compliant
The Delegation Model
Assign each entity to a local advisor (corporate secretary, accountant, or registered agent). The advisor owns the local compliance calendar and sends reminders. Cost: typically 1,500 to 5,000 USD per year per entity.
The In-House Model
A single compliance lead (Chief of Staff, Operations Manager, or Finance Lead) maintains the master calendar and coordinates with local advisors. Cost: portion of one salary, typically 20,000 to 50,000 USD allocated.
The Software Model
Use compliance management platforms (Harbor Compliance, Swyft Compliance, BoardBible, or Diligent Compass) to automate reminder and tracking. Cost: 1,500 to 5,000 USD per year depending on number of entities and features.
The Hybrid Model
Most international founders use a hybrid. Each entity has a local advisor, the founder (or a delegated person) maintains the master calendar, and software provides reminders. This is the most resilient approach.
I have seen startups with 8-figure revenue miss Delaware franchise taxes because the founder assumed the accountant handled it, the accountant assumed the registered agent handled it, and the registered agent sent notices to an email address nobody monitored. The penalty was recoverable, but the loss of good standing during a term sheet negotiation delayed the round by 45 days. Compliance failure is usually a communication failure, not a knowledge failure.
Tools and Templates
For founders setting up a master calendar, the following template structure works:
| Column | Content |
|---|---|
| Entity | Legal name and state/country of formation |
| Filing | Type of filing (e.g., Delaware franchise tax, UK confirmation statement) |
| Authority | Government body receiving the filing |
| Due Date | Specific date each year |
| Reminder Date | 30 days before due date |
| Responsible Advisor | Name, firm, email, phone |
| Fee | Approximate cost |
| Status | Upcoming / In Progress / Filed / Confirmed |
| Confirmation | Filing reference number or confirmation URL |
For founders building professional documents, intercompany agreements, or compliance memos, the business writing templates at evolang.info offer formats that reduce drafting time for board resolutions, director consents, and compliance policy documents. The cognitive load analysis at whats-your-iq.com covers how entrepreneurs maintain accuracy across competing deadline pressures, with practical patterns applicable to compliance management.
The entrepreneurship coverage at whennotesfly.com includes discussions of how small business founders structure recurring administrative workflows, including compliance calendars, bookkeeping, and reporting rhythms. For certification-seeking compliance professionals (CPA, ACCA, Chartered Secretary), the cert prep resources at pass4-sure.us cover regulatory modules that reinforce the compliance frameworks discussed here.
Related Corpy Resources
- Beneficial ownership reporting requirements: global guide for the specific BOI/UBO compliance picture
- Data protection: GDPR compliance for startups for EU privacy obligations
- Double taxation: how to avoid it legally for treaty-based tax coordination
- Transfer pricing rules for small international businesses for intercompany documentation requirements
References
- Delaware Division of Corporations. Annual Franchise Tax. https://corp.delaware.gov/paytaxes/
- UK Companies House. Annual Filings Guide. https://www.gov.uk/guidance/confirmation-statement-guidance
- Internal Revenue Service. Form 5472 Instructions. https://www.irs.gov/forms-pubs/about-form-5472
- HM Revenue and Customs. Corporation Tax payment deadlines. https://www.gov.uk/pay-corporation-tax
- Estonian Tax and Customs Board. Tax calendar. https://www.emta.ee/en
- UAE Federal Tax Authority. Corporate Tax. https://tax.gov.ae/en/taxes/corporate.tax.aspx
- Inland Revenue Authority of Singapore. Corporate Tax Filing. https://www.iras.gov.sg/taxes/corporate-income-tax
- German Federal Central Tax Office. Tax filing deadlines. https://www.bzst.de/
Frequently Asked Questions
What is the single most common compliance miss for international founders?
Missing the Delaware franchise tax deadline (March 1 for corporations, June 1 for LLCs). Delaware is the most common US formation state for international founders, and the franchise tax is the most commonly missed filing because founders often do not track the deadline. Penalties start at 200 USD plus interest at 1.5 percent per month for corporations. Beyond two years of non-payment, the state can void the corporation's good standing, creating cascading problems for banking, fundraising, and contracting.
Do I need to file an annual report if my LLC had no activity?
In most jurisdictions, yes. Annual reports and franchise taxes are generally filed regardless of activity. Delaware, Wyoming, California, and most US states require the filing even for dormant LLCs. Estonia requires an annual report even for companies with no transactions. UK Companies House requires a confirmation statement (filed at least once per year) regardless of activity. Nevada requires the annual list of managers and the business license fee regardless of activity. The small cost of dormant-company compliance is much less than the penalty cost of late filing.
What is the UK confirmation statement and how often is it filed?
The confirmation statement is filed with Companies House to confirm that the company's records are up to date. It must be filed at least once per year, within 14 days of the review period end date. The filing fee is 34 GBP online or 62 GBP by paper. The confirmation statement reports changes to directors, registered office, share capital, shareholders, and People with Significant Control (PSC). Missing the confirmation statement for multiple years can result in the company being struck off the register.
When is US Form 5472 required and what is the penalty for missing it?
Form 5472 is required for any US corporation or disregarded entity (single-member LLC) that is 25 percent foreign-owned and had reportable transactions with a foreign related party during the tax year. Filing deadline follows the US tax return due date (April 15 for corporations, or extended). The penalty for late or incomplete Form 5472 is 25,000 USD per form, per year, which is one of the harshest penalties in US tax law. Continuation penalties apply if the form is not filed after IRS notice.
Do I need to file tax returns in my home country if I run a foreign company?
Almost certainly yes. Controlled Foreign Corporation (CFC) rules in most developed countries require residents to report and often pay tax on the income of foreign companies they control. The US has Subpart F and GILTI, the UK has CFC rules under TIOPA 2010, EU member states follow the Anti-Tax Avoidance Directive, and most other countries have equivalent provisions. Failing to file CFC reports (Form 5471 in the US, for example) triggers significant penalties even if no tax is ultimately owed.
What EU VAT filings apply to a non-EU company selling digital services to EU consumers?
A non-EU company selling B2C digital services to EU consumers must register for the non-Union scheme of the One Stop Shop (OSS). Quarterly VAT returns are due by the end of the month following each quarter (January 31, April 30, July 31, October 31). The OSS registration is made in one EU member state of the company's choosing and covers sales to all 27 EU countries. Records must be retained for 10 years.
Is there software that tracks compliance deadlines across jurisdictions?
Several compliance management platforms track deadlines for international founders. Common options include Harbor Compliance (US-focused), Swyft Compliance, BoardBible, Diligent Compass (enterprise-grade), and jurisdiction-specific services offered by registered agents and corporate secretaries. Founders managing 3 or more entities should budget 1,500 to 5,000 USD per year for compliance management software or a delegated service. For 1 or 2 entities, a shared calendar with manual reminders is usually sufficient.