# Games : D&D 3.5 : Rules : Bonuses
- Untyped bonuses stack.
- Bonuses of different types stack.
- In most cases, bonuses of the same type do not stack — only the highest bonus applies.
- Ability Score Modifers (14 -> +2) are sometimes called bonuses — aka, "Strength bonus".
| Bonus Type | Notes |
| ------------- | ---------------------------------------------------- |
| alchemical | - |
| armor | ...to AC |
| circumstance | sometime stack |
| competence | - |
| deflection | ...to AC |
| dodge | ...to AC or Ref; stacks; only applies when Dex -> AC |
| enhancement | ..often to other bonuses |
| natural armor | ...to AC |
| inherent | ...to ability scores (max +5) |
| insight | - |
| luck | - |
| morale | - |
| profane | - |
| racial | - |
| resistance | ...to saves |
| sacred | - |
| shield | ...to AC |
| size | when bigger or smaller than opponent |
```
smaller ................................... larger
Bonus to atks & AC when you are... +8 / +4 / +2 / +1 / - / -1 / -2 / -4 / -8
Bonus to Hide when you are... +16 / +12 / +8 / +4 / - / -4 / -8 / -12 / -16
```
```
Touch Attack ignores : Armor bonus, Natural Armor bonus, Shield bonus, Enahancement bonuses to those bonuses
Lose Dex & Dodge bonuses when : flat-footed, can't move / react, can't see attacker, etc
```