20 Forms 1099-R is the limit.
If you have multiple Forms 1099-R that show no tax withholding in box 4, have the same code in box 7 and the marking of the IRA/SEP/SIMPLE box is the same, these can be summed into a single Form 1099-R entry since, under these circumstances, the details of the Forms 1099-R are not transmitted with your e-filed tax return. Only the totals are included on Form 1040 lines 15 and 16 or Form 1040A lines 11 and 12.
(Some payers that hold multiple investments in a single retirement account unnecessarily issue a separate Form 1099-R for a distribution from each investment within the account rather than issuing a single Form 1099-R for the entire account.)
20 Forms 1099-R is the limit.
If you have multiple Forms 1099-R that show no tax withholding in box 4, have the same code in box 7 and the marking of the IRA/SEP/SIMPLE box is the same, these can be summed into a single Form 1099-R entry since, under these circumstances, the details of the Forms 1099-R are not transmitted with your e-filed tax return. Only the totals are included on Form 1040 lines 15 and 16 or Form 1040A lines 11 and 12.
(Some payers that hold multiple investments in a single retirement account unnecessarily issue a separate Form 1099-R for a distribution from each investment within the account rather than issuing a single Form 1099-R for the entire account.)
What do I do if all my Forms 1099-R show withholding, but I need more than 20?
If all show withholding, you can combine those from the same plan having the same code in box 7 and marking of the IRA/SEP/SIMPLE box, but you must then mail your tax return and include the required printed copies of the Forms 1099-R. Even though TurboTax will permit you to e-file, doing so would cause the combined Form 1099-R to differ in detail from the individual Forms 1099-R provided to the IRS by the payers leading to potential problems processing your tax return.