For individual entrepreneurs operating under both general and simplified taxation systems, issuing an invoice for payment is an integral part of their relations with counterparties. An invoice is a primary document that confirms the seller's intent to deliver goods, perform work, or provide services, and it records the agreement between the parties regarding price, quantity, and payment terms. Although current legislation does not require individual entrepreneurs to issue invoices, this document has become the de facto standard of business turnover in Ukraine.
The absence of an invoice is not a violation, but having one significantly simplifies mutual settlements, reduces the risk of disputes, and serves as proper evidence in case of litigation. As of 2026, clear requirements for the form and content of this document have been established, and convenient tools for its quick creation have emerged. Understanding the rules for issuing an invoice is a prerequisite for conducting transparent business and building trustful relations with clients.
What is an Invoice for Individual Entrepreneurs and When is it Used
An invoice for an individual entrepreneur is an official document that contains an offer to the buyer to pay for goods, works, or services under specified conditions. This document is not a contract; however, its acceptance (i.e., payment) indicates the buyer's agreement with all stated conditions. Invoices are used in various cases: for one-time deliveries of goods, for providing services under a contract, for prepayments, as well as an attachment to a concluded contract to specify amounts payable. An individual entrepreneur working under the simplified taxation system (single tax 2-5%) is obliged to issue an invoice if their client is a value-added tax payer or if calculations are made through the banking system cashless.
For individual entrepreneurs under the general taxation system, an invoice is a mandatory document for transactions subject to VAT. Additionally, an invoice is necessary to confirm expenses for the buyer's tax accounting. It is also used as a basis for payment when working with government institutions, budget organizations, and large corporate clients who require proper documentation for each transaction.
Mandatory Requisites of an Invoice for Payment
In order for an invoice to have legal force and be accepted by the bank for execution, it must include a complete list of mandatory requisites. These include:
- the serial number of the invoice and the date of its issue;
- the full name of the document "Invoice" or "Invoice for Payment";
- the name of the seller (individual entrepreneur) with a mention of last name,
- first name, patronymic, and the EDRPOU code or tax payer's registration number;
- the tax address of the seller;
- the banking details of the individual entrepreneur: bank name, MFO code, account number (IBAN), EDRPOU code of the bank;
- the name of the buyer (legal entity or the last name, first name, and patronymic of the individual);
- the full name of the goods (works, services) with specified characteristics, articles, or other identification features;
- the quantity of goods (units of measurement) or the volume of works/services;
- the price per unit of goods (excluding VAT or including VAT);
- the total cost excluding VAT;
- the value-added tax rate (20%, 7%, 0%, or without VAT);
- the amount of value-added tax;
- the total cost including VAT;
- the purpose of payment (indicating the invoice, contract, or other basis);
- the signature of the authorized person (individual entrepreneur) and a seal (if available).
The absence of any of these requisites may lead to the return of the payment by the bank or recognition of the document as invalid during a tax audit. Special attention should be paid to the correct indication of the IBAN, as an error in even one digit will result in funds not being transferred to the seller's account.
How to Properly Form an Invoice for Individual Entrepreneurs: Document Structure
The structure of an invoice for payment is standardized and has a logical sequence. The document is typically placed on an A4 format sheet and consists of several blocks. The upper part contains the "header" of the document, where the names of the seller (individual entrepreneur) and buyer, as well as the banking details of the parties, are specified. This block also indicates the date and invoice number. The main block of the document is represented in the form of a table, which includes columns: serial number, product name (works, services), unit of measurement, quantity, price per unit, total cost (excluding VAT), VAT rate, VAT amount, total cost including VAT.
The tabular part allows for the clear structuring of information, especially if several items are included in the invoice. Below the table, the summary data must be provided: amount excluding VAT, VAT amount, total amount due. A separate row specifies the amount in words, which additionally confirms the accuracy of the total figure. The concluding block contains the purpose of the payment – the phrase that the buyer must indicate in the payment order. The standard wording for the purpose of payment is: "Payment for [product/service name] according to invoice № [number] dated [date], including VAT – [amount] UAH". This block also specifies payment terms (e.g., "cashless payment"), the validity period of the bill (if specified in the contract), and other significant conditions. It is important to remember that the invoice is not a fiscal document and is not registered with tax authorities. However, its presence is mandatory for conducting cashless transactions.
Step-by-Step Instructions on How to Issue an Invoice for Individual Entrepreneurs
The procedure for issuing an invoice by an individual entrepreneur is simple and includes several sequential steps. The first step is to agree with the counterparty on the subject, price, quantity, and terms of payment. Without prior agreement, issuing an invoice is meaningless. The second step is to determine the need for value-added tax accrual. If the individual entrepreneur is a VAT payer, the appropriate line must be added to the table, and the amount of tax should be calculated at a rate of 20% (or another, depending on the operation). The third step is to fill out the header of the document.
It is necessary to provide your data as the seller, banking details, and buyer information. The fourth step is to fill out the tabular part. For each item of goods or services, the name, unit of measurement, quantity, and price must be specified. The quantity and price are multiplied to obtain the total cost of the item. The fifth step is to calculate the summary amounts: total cost excluding VAT, VAT amount (if applicable), total amount due. The sixth step is to write the amount in words. This is a mandatory requirement of banks when accepting payment orders for large amounts. The seventh step is to formulate the purpose of the payment. The eighth step is to check the accuracy of all provided data, especially banking details and the total amount. The ninth step is to send the invoice to the buyer via email, messenger, or other communication channels. The tenth step is to receive confirmation of the receipt of the invoice and control the receipt of payment.
Methods of Invoice Creation (Manually, Excel, Online Services)
Individual entrepreneurs can choose different methods for creating invoices depending on their activity level, technical capabilities, and personal preferences. The simplest, but least convenient method is to issue an invoice manually on a special form. This approach requires printed forms, a pen, and neatness when filling in the details. The main disadvantages are low speed, risk of errors, and inconvenience when making changes. A common method is creating an invoice in Microsoft Excel. For this, it is sufficient to develop a document template once with pre-inserted requisites, formulas for automatic calculation of totals, and a block for writing the sum in words.
This template is saved on the computer, and to create a new invoice, just the date, number, buyer data, and the list of goods/services need to be changed. The drawback is the need for the Microsoft Office package and basic skills in working with spreadsheets. The most convenient and modern method is using online services to create invoices. Among the most popular are services from Ukrainian developers, such as Excel Online, Google Sheets (with a pre-configured template), as well as specialized accounting programs for individual entrepreneurs. The advantages of online services include automatic filling of requisites, storage of all invoices in the cloud, the ability to quickly send a link to the invoice to the buyer, automatic numbering changes, and integration with other accounting systems. Some services offer free rates for small businesses, making this method economically advantageous.
Invoice for Payment and Contract: Is a Contract Always Necessary
Many individual entrepreneurs mistakenly believe that an issued invoice for payment is sufficient to regulate all relations with the counterparty and that concluding a separate contract is not necessary. However, this is not entirely true. An invoice for payment does not replace a contract; it merely serves as a primary document that confirms the parties' intent to carry out the transaction. Current legislation in Ukraine does not require a written contract for one-time deliveries of goods or services for small amounts. In such cases, the fact of acceptance (payment) of the invoice is considered as contracting in a simplified form – so-called conclusive action.