The 13k are presumably T-Bills which are specific short term instruments that are reported as interest on 1099-INT Box 3.
The 50k Notes do not generate capital gains you should have an "Accrued Market Discount" (AMD) adjustment on the 1099-B in Box 1f which will zero out the capital gain and report this amount on your Schedule B as ordinary income, not a capital gain.
2 issues to be aware of:
- if the 1099-B is input as sales summary only with adjustment you will be asked to send your 1099-B to IRS. You can avoid this by inputting these sales as "one by one" with the detail which will generate Form 8949, and put the balance of your 1099-B in as sales summaries, it will all be consolidated on different rows of Schedule D and no mailing should be required. Same for any other adjustments for wash sales, non covered securities etc.
- the AMD from Box 1f will not automatically flow to your state return as a subtraction to income the same way 1099-INT Box 3 does. There are various ambiguities and differing language in the tax code state by state as to whether AMD is exempt from state taxes or not, some states are clearer than others either way. There is a long running thread on this topic here
https://ttlc.intuit.com/community/taxes/discussion/re-accrued-market-discount-on-treasury-bonds-stat...
