This question doesn't necessary refer to the foreign account scenario...
If tax is paid for the year in which it was accrued, but not paid, would it be correct to assume there would not have been a 1099-INT issued? Therefore how do you reference that accrued interest in your return?
And if a 1099-INT was not issued for a year in which you declared the accrued interest, how do you explain the difference between the full amount of interest actually paid as shown on the 'final' 1099-INT issued at the time of maturity vs. the smaller amount accrued and paid in the tax year?
