Irina Emdina

Irina is an expert in business formation, accounting, taxes, and commerce. With a Master’s degree in International Economics, she combines strong academic expertise with practical insights into the world of freelancers and businesses. Since 2022, she has been working in SaaS editorial teams, specializing in clear and accessible content about digital business processes. Since January 2025, she has been writing for easybill, helping entrepreneurs simplify and streamline their accounting and invoicing workflows.

Articles published by Irina Emdina

25. September 2026

E-Invoice to Public Authorities: Formats, Submission, and Software

E-Invoicing

Electronic invoicing has long been mandatory in business transactions with public-sector contracting authorities. As early as 2020, companies have been required to send e-invoices to…
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21. September 2026

E-Invoicing: Mandatory for Landlords? We Clarify the Facts

E-Invoicing

From 2025, e-invoicing will become mandatory for many, but what does that mean for landlords? While private residential rentals generally remain exempt, commercial landlords must…
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8. September 2026

Engaging a debt collection agency: when it’s worth it and what it costs

Accounts Receivable, Payments

You may engage a debt collection agency as soon as your claim is due, undisputed, and your customer is in default. As a rule, the…
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7. August 2026

E-Invoice Implemented Incorrectly or Too Late: Penalties, Risks, and Safeguards

E-Invoicing

What you need to know about penalties for e-invoices A specific “penalty” for e-invoices does not exist in the law. However, anyone who issues an…
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23. July 2026

E-invoicing obligation for online retailers and Amazon sellers

Amazon, E-Invoicing, eCommerce, Online Shop

If you sell through marketplaces such as Amazon, eBay, Kaufland, and OTTO Market, or through your own online shop, the e-invoicing obligation affects you in…
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20. July 2026

What is SKR03/SKR04, and why do you actually no longer need to know it?

Accounting, Receipts, Tips & Tricks

The terms SKR03 or SKR04 almost always come up in the first serious conversation with your tax advisor. This post clears up what they mean,…
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3. July 2026

New customs duty requirement as of July 2026: packages from non-EU countries will become more expensive with immediate effect

eCommerce, Online Shop

Since 1 July 2026, new customs rules apply to online purchases from non-EU countries. The previous customs duty exemption threshold of 150 euros has been…
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9. June 2026

The EN 16931 standard: The foundation of the electronic invoice (E-Rechnung)

E-Invoicing

EN 16931 is a European standard that defines the semantic data structure of an electronic invoice. It was initiated by the European Union (EU) to…
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15. April 2026

Steuererklärung (tax return) for Self-Employed Individuals 2026: Tax Types, Software, and Practical Tips

Taxes

Tax returns are a mandatory part of being self-employed. They are required by law but also provide an opportunity to better understand your own finances…
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15. April 2026

Advance payment invoice: Mandatory information and tax-specific details

Accounting, Receipts, Taxes

If you require an advance payment from your customers, there are a number of legal points to consider. Unlike a conventional invoice, which is usually…
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