In fact, anyone can clarify on these issues.
1. Did I understand correctly for the unified tax:
1.1. Single tax for developing software will be 1000 UAH., if you work at the place of registration, and 1500 UAH., if you work in all Ukraine.
1.2. If you pay 1000 UAH. to pay extra to the pension Fund and the social. fear. more anything is not necessary.
2. To pay taxes for common systemsE. did I understand Correctly:
If the profit is 1000 UAH. first subtract 20% VAT (200 UAH.). Then the remainder (i.e. from 800 UAH). subtract 33.2 PF (min 300 UAH., a maximum of 4.5. thousand hrn.) and then with ostatka (i.e. with an initial amount minus VAT and PF) subtract 15% tax.