# ISBLANK
The **ISBLANK** function returns *TRUE* if the specified value is blank or empty. It returns *FALSE* if the value contains any text, number, or expression. It is commonly used with [**IF**](/planning-sheets/formula-syntax/conditional-statements/if-1.md) and other logical functions to validate missing values before performing calculations.
{% hint style="info" %}
The **ISEMPTY** function works similar to **ISBLANK** and can also be used to check for blank or empty values.
{% endhint %}
### Syntax
```javascript
ISBLANK(value)
```
### Arguments
* value - The value to evaluate.
### Return value
Returns *TRUE* if the value is blank; otherwise, returns *FALSE*.
### **Example**
In this example, the **ISBLANK** function checks whether the *2027 Actuals Plan* value is blank. If the condition is *TRUE*, the formula returns *0*; otherwise, it returns the existing value.
### **Excel equivalent**
[ISBLANK](https://support.microsoft.com/en-us/office/is-functions-0f2d7971-6019-40a0-a171-f2d869135665), [ISEMPTY](https://support.microsoft.com/en-us/office/isempty-function-a86d5871-f6bd-455c-9256-a69a42e55e50)
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