The Office of Gordon and Sarah Brown was established to support Gordon and Sarah in their work and to facilitate their ongoing involvement in public life. This includes their charitable and pro bono work. The costs of the Office are paid from income received by the Office for consulting and paid speaking engagements undertaken by Gordon. Alongside paid speaking engagements Gordon and Sarah give regular pro bono speeches to universities, charities and other organisations.

To date £3,554,867 has been donated to charities including Theirworld for children’s causes, and the Jennifer Brown Research Laboratory which supports medical research into pregnancy and neonatal research to save newborn lives, or to support other charitable and public service projects. The Office of Gordon and Sarah Brown pays corporation tax on all profits, as recorded in the official records at Companies House.

In 2009 Gordon renounced the non-contributory Prime Ministerial pension he was entitled to receive, and only receives the contributory ministerial and parliamentary pensions from his 32-year period as an elected UK Member of Parliament. Neither Gordon or Sarah have received any salaries, dividends, or profits from The Office of Gordon and Sarah Brown, which employs staff to further their charitable and public service work and support good causes both locally and internationally.