https://www.irs.gov/retirement-plans/actuarial-tables
Actuarial tables | Internal Revenue Service
Use these actuarial tables to value annuities, life estates, remainders and reversions. For examples on how to use the tables, refer to IRS publications listed.
tables internal revenue
https://www.irs.gov/individuals/international-taxpayers/tax-treaty-tables
Tax treaty tables | Internal Revenue Service
Review tax treaty tables highlighting the types of income that may be exempt from U.S. income taxes or taxed at a reduced tax rate.
tables internal revenuetax