RetireJapan

Hi adamu. Apologies for the delayed response. I can’t tell you how it handles withholding taxes - you could ask the company. The have an online version, though it might be too expensive for personal taxes.

Please have a look at the Cognito family of software. I have used it for more than 15 years and find it highly capable and reliable.

cognito.co.nz/product-range.php