InVault Blog

Can an Invoice Be Cancelled?

Smart Business Finance

Can an Invoice Be Cancelled?

Understanding whether an invoice can be cancelled — and how to do it properly — saves you from broken invoice sequences, awkward client conversations, and unnecessary questions from accountants or tax authorities later on.

Should an Invoice Be Signed?

Productivity & Automation

Should an Invoice Be Signed?

Many freelancers sign their invoices out of habit — not because they have to, but because it feels safer. In reality, most modern invoices are never signed at all — and that’s perfectly normal.

Tax Invoice vs. Regular Invoice: What’s the Difference in the EU?

Smart Business Finance

Tax Invoice vs. Regular Invoice: What’s the Difference in the EU?

Do I need to issue a tax invoice — or is a regular invoice enough? The terms sound similar, they’re often used interchangeably, and yet the difference matters more than it seems. Let’s unpack what a tax invoice actually is.

Accounts Payable Transactions Explained: Simple Accounting for Non-Accountants

Smart Business Finance

Accounts Payable Transactions Explained: Simple Accounting for Non-Accountants

Accounts payable is simply money that you owe. Rent, software subscriptions, contractors, supplier invoices—all of these create accounts payable transactions. Let's figure out what documents are needed for this and what to do in general.

What Is a Proforma Invoice — and When Do You Actually Need One?

Smart Business Finance

What Is a Proforma Invoice — and When Do You Actually Need One?

What is a proforma invoice and when does a freelancer need one? How can you tell the difference between a regular invoice and a proforma invoice?

What should be Included in an Invoice to Be Legally Valid?

Smart Business Finance

What should be Included in an Invoice to Be Legally Valid?

How to correctly draw up an invoice so that it is legally valid? What items must an invoice contain?

Full-Charge Bookkeeping: What It Actually Means

Smart Business Finance

Full-Charge Bookkeeping: What It Actually Means

A full-charge bookkeeper is just someone who handles the entire financial picture of your business, from daily transactions to month-end reporting. Let’s walk through what full-charge bookkeeping includes — and when each piece becomes necessary depending on your stage of business.

Self-employed finances without stress: 7 steps

Smart Business Finance

Self-employed finances without stress: 7 steps

How can you avoid stress when you are self-employed and know nothing about finances? The first step in bookkeeping is the most difficult, and we will take it together.