About
Create invoices, estimates, and receipts on your smartphone. Automatically calculate withholding tax and consumption tax, and manage your financial documents. Easily send PDF documents to clients and organize them by month for tax preparation.
What's New in かんたん請求書
1.1.6
October 20, 2026
・PDFの作成・共有時の安定性を改善しました。 ・保存済み品目の選択操作に関する不具合を修正しました。 ・画面切替時の広告表示と、動画視聴後の広告非表示処理を改善しました。 ・その他、動作の安定性を向上しました。
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FAQ
What is かんたん請求書?
かんたん請求書 is a mobile application designed for freelancers and sole proprietors to create and manage invoices, estimates, and receipts. It offers features like automatic tax calculations and PDF document management.
Can I create estimates and receipts with かんたん請求書?
Yes, かんたん請求書 allows you to create estimates and receipts in addition to invoices. These documents can be converted from one to another, reducing repetitive data entry.
Does かんたん請求書 calculate withholding tax?
Yes, かんたん請求書 automatically calculates withholding tax for applicable income. It supports the calculation method for amounts up to 1 million yen at 10.21% and amounts exceeding 1 million yen at 20.42%.
Is かんたん請求書 compatible with the Japanese invoice system (インボイス制度)?
Yes, かんたん請求書 supports the Japanese invoice system by allowing you to include your registered business number for qualified invoice issuers. It also handles standard 10% and reduced 8% consumption taxes.
How are my documents managed in かんたん請求書?
Created documents are saved locally on your device and can be viewed in a monthly list. This makes it easy to find past invoices and estimates, aiding in document organization for tax filing.
Does かんたん請求書 have ads?
Yes, かんたん請求書 contains advertisements. However, you can remove ads by purchasing the premium version or a one-time purchase option.
What are the premium features of かんたん請求書?
Premium features include the ability to create estimates and receipts, register clients and frequently used items, customize color themes and fonts, add logos, and export documents for specified periods in PDF or ZIP format. Ad removal is also a premium benefit.
What devices does かんたん請求書 support?
かんたん請求書 is available for iPhone and iPod devices. It is rated for ages 4 and up.