Yes, split the adjusted basis, sale proceeds and the selling fees.
The program will look at this as one sale and will not allocate the gain, if any.
Enter only your portion of everything, the date purchased and sold.
If you lived in the home at least 2 of the last 5 years, you may be able to take advantage of the exclusion of up to 250,000 gain on the house.
HERE is a link explaining that exclusion