A family which shopped for school uniforms in the sales and at charity shops said there was "less of a stigma" around second-hand clothes and equipment than in the past, but items had still set them back nearly £800.
Mum, Nikki, from Guernsey, said the cost of living and specific school uniform requirements for children, James, 10, Henry, 11, Grace, 14, and Olivia, 16, had meant they felt the financial pinch this year.
The States said 1,027 children would get a grant to fund uniform this year and it had received an additional 667 applications for the money as of Monday.
It said it expected more applications later in the year, as the uniform grant scheme was open until April.