# Determination of Annual Value [Section 23]
## Formula
```
Gross Annual Value (GAV) xxx
(-) Municipal Taxes paid (xxx)
by owner during the PY
────────────────────────────────────
Net Annual Value (NAV) xxx
```
Note on Municipal Taxes: Only deductible if actually paid by the owner during the PY — accrual basis is not allowed; tenant-paid taxes are not deductible.
## How to Calculate GAV — Step-by-Step
### Step 1 — Compute Expected Rent (ER)
1. Reasonable Expected Rent (RER) = Higher of:
- Municipal Value (MV)
- Fair Rent (FR)
2. Expected Rent (ER) = Lower of:
- RER (from step 1)
- Standard Rent (SR) — standard rent acts as a ceiling under Rent Control Act
### Step 2 — Compare Expected Rent with Actual Rent
```
GAV = Higher of (Expected Rent, Actual Rent Received/Receivable)
```
## Quick Logic Tree
```
Municipal Value vs Fair Rent
(whichever is HIGHER)
|
v
Compare with Standard Rent
(whichever is LOWER)
|
v
Expected Rent
|
v
Compare with Actual Rent
(whichever is HIGHER)
|
v
GAV
```
## Key Definitions
- Municipal Value (MV): Value fixed by local municipal authority for tax purposes.
- Fair Rent (FR): Rent that a similar property in the same locality would fetch.
- Standard Rent (SR): Maximum rent the owner can legally collect under Rent Control Act.
- Actual Rent: Rent actually received or receivable for the period let out.