sole-source income
nounUK /səʊl sɔːs ˈɪnkʌm/
US /soʊl sɔːrs ˈɪnkʌm/
Money you get from just one place.
After losing his job, he had sole-source income from a small rental property.
OTHER MEANINGS
2. Money earned from only one customer or client.
The freelancer's sole-source income came from a single agency contract.
3. Revenue a business receives from one main buyer.
The factory's sole-source income depended on a government supply deal.
4. Financial support from one family member or benefactor.
Her sole-source income was a monthly allowance from her grandfather.