You can find out whether your business is within the scope of compulsory transition to e-invoice by looking at its gross sales revenue in 2022 or you can get help from your accountant. If your business's income is 3 million TL or more in 2022, it is obligatory for your business to switch to e-invoice. Sectoral e-invoice obligation is; Those who have earned 500 thousand TL or more income in 2022; Persons dealing with hotels, tourism businesses, real estate-real estate sector, car purchase and sale rental business and e-commerce should switch to e-invoice by 1 July 2023 at the latest.