diff --git a/CHANGELOG.md b/CHANGELOG.md
index d775cb47..85f43bc8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Supported tokens from Census3 using `getSupportedTokens()` returns now a token summary.
+- Census3 `getStrategyEstimation` accepts `anonymous` flag and returns `accuracy` for anonymous censuses.
 
 ### Fixed
 
diff --git a/README.md b/README.md
index 0e79b5ec..65153d59 100644
--- a/README.md
+++ b/README.md
@@ -810,9 +810,13 @@ const strategy = await client.getStrategy(1);
 ~~~
 
 ~~~ts
-// Get strategy size
-const size = await client.getStrategySize(1);
-// 12455
+// Get strategy estimation information for creating census
+const size = await client.getStrategyEstimation(1);
+// {
+//   "size": 5516,
+//   "timeToCreateCensus": 3296,
+//   "accuracy": 100
+// }
 ~~~
 
 ~~~ts
diff --git a/src/api/census3/census.ts b/src/api/census3/census.ts
index bdc21f81..f26ccd95 100644
--- a/src/api/census3/census.ts
+++ b/src/api/census3/census.ts
@@ -50,6 +50,11 @@ export interface ICensus3CensusResponse {
    * If the census is anonymous or not
    */
   anonymous: boolean;
+
+  /**
+   * The accuracy for an anonymous census
+   */
+  accuracy: number;
 }
 
 export interface ICensus3CensusQueueResponse {
diff --git a/src/api/census3/strategy.ts b/src/api/census3/strategy.ts
index d0a65a55..abb1d33b 100644
--- a/src/api/census3/strategy.ts
+++ b/src/api/census3/strategy.ts
@@ -117,6 +117,11 @@ export interface ICensus3StrategyEstimationQueueResponse {
      * The estimation of the time to create the census
      */
     timeToCreateCensus: number;
+
+    /**
+     * The accuracy for an anonymous census
+     */
+    accuracy: number;
   };
 }
 
@@ -294,11 +299,14 @@ export abstract class Census3StrategyAPI extends Census3API {
    *
    * @param {string} url API endpoint URL
    * @param {number} id The identifier of the strategy
+   * @param {boolean} anonymous If the estimation should be done for anonymous census
    * @returns {Promise<ICensus3QueueResponse>} The queue identifier
    */
-  public static estimation(url: string, id: number): Promise<ICensus3QueueResponse> {
+  public static estimation(url: string, id: number, anonymous: boolean = false): Promise<ICensus3QueueResponse> {
     return axios
-      .get<ICensus3QueueResponse>(url + Census3StrategyAPIMethods.ESTIMATION.replace('{id}', String(id)))
+      .get<ICensus3QueueResponse>(
+        url + Census3StrategyAPIMethods.ESTIMATION.replace('{id}', String(id)) + '?anonymous=' + String(anonymous)
+      )
       .then((response) => response.data)
       .catch(this.isApiError);
   }
diff --git a/src/census3.ts b/src/census3.ts
index 56cd8a68..3e80d77d 100644
--- a/src/census3.ts
+++ b/src/census3.ts
@@ -186,15 +186,19 @@ export class VocdoniCensus3Client {
    * Returns the estimation of size and time (in milliseconds) to create the census generated for the provided strategy
    *
    * @param {number} id The id of the strategy
+   * @param {boolean} anonymous If the estimation should be done for anonymous census
    * @returns {Promise<Strategy>} The strategy estimation
    */
-  getStrategyEstimation(id: number): Promise<{ size: number; timeToCreateCensus: number }> {
+  getStrategyEstimation(
+    id: number,
+    anonymous: boolean = false
+  ): Promise<{ size: number; timeToCreateCensus: number; accuracy: number }> {
     invariant(id || id >= 0, 'No strategy id');
     const waitForQueue = (
       queueId: string,
       wait?: number,
       attempts?: number
-    ): Promise<{ size: number; timeToCreateCensus: number }> => {
+    ): Promise<{ size: number; timeToCreateCensus: number; accuracy: number }> => {
       const waitTime = wait ?? this.queueWait?.retryTime;
       const attemptsNum = attempts ?? this.queueWait?.attempts;
       invariant(waitTime, 'No queue wait time set');
@@ -214,7 +218,7 @@ export class VocdoniCensus3Client {
           });
     };
 
-    return Census3StrategyAPI.estimation(this.url, id)
+    return Census3StrategyAPI.estimation(this.url, id, anonymous)
       .then((queueResponse) => queueResponse.queueID)
       .then((queueId) => waitForQueue(queueId));
   }
diff --git a/test/census3/integration/strategy.test.ts b/test/census3/integration/strategy.test.ts
index 102fad0d..8607ce75 100644
--- a/test/census3/integration/strategy.test.ts
+++ b/test/census3/integration/strategy.test.ts
@@ -53,6 +53,7 @@ describe('Census3 strategies integration tests', () => {
       expect(typeof estimation).toBe('object');
       expect(typeof estimation.size).toBe('number');
       expect(typeof estimation.timeToCreateCensus).toBe('number');
+      expect(typeof estimation.accuracy).toBe('number');
     }
   }, 25000);
   it('should create a new strategy', async () => {