The biggest problem for me is the delay between when the tax is incurred and when it is filed. As a home owner, for instance, every year I have to remember how

The biggest problem for me is the delay between when the tax is incurred and when it is filed. As a home owner, for instance, every year I have to remember how much I paid for property tax, mortgage interests, etc (or at least save the receipts). If the IRS can provide some kind of API that allows me to file each item as it appears, that would be much better.