Base bonus schedule

This page outlines the bonuses a creature or player receive each level. The progression of these bonuses is called a “schedule”, and there are four different schedules, which are shown below

LevelSchedule DSchedule CSchedule BSchedule A
1+0+0+0+0
2+1+1+1+1
3+1+1+1+1
4+1+1+2+2
5+1+2+2+2
6+2+2+2+3
7+2+2+3+3
8+2+3+3+3
9+2+3+3+4
10+3+3+4+4
11+3+4+4+5
12+3+4+4+5
13+3+4+5+5
14+4+5+5+6
15+4+5+5+6
16+4+5+6+7
17+4+6+6+7
18+5+6+6+7
19+5+6+7+8
20+5+6+7+8

Example
A bear has Schedule C for its BAB and Schedule A for its BDB At level 9 its BAB is +3 and its BDB is +4. At level 13, its BAB is +4 and its BDB is +5