Rahu in the 2nd house (Dhana, the house of wealth) brings the significations of Rahu, namely obsession & ambition, foreign lands & the unconventional, illusion (maya), into the area of wealth, family, speech and the resources you gather. The 2nd house governs accumulated wealth, family, speech, food & values.
Results of Rahu in the 2nd House
Rahu is a malefic planet, so here it tends to bring confusion, anxiety, deceit, addictions and unexpected upheaval focused on wealth, family, speech and the resources you gather.The exact result depends on which sign Rahu occupies here and the aspects it receives.
When It Activates
These results typically surface during the Vimshottari mahadasha or antardasha of Rahu, and when transiting planets trigger the 2nd house. A well-placed Rahu here supports financial stability, a supportive family and pleasant, truthful speech; when afflicted it can indicate money troubles, family friction and harsh or careless speech.