The charity will receive a base budget of £2.5 million for 2027.
The charity, which supports people with disabilities into work, receives £1.9 million a year in core funding from the government.
However, for the past few years it has relied on additional 'top-up' grants to meet rising demand for its assistance.
Last year, that extra money totalled £785,000.
The Social Security Minister said the model was 'unsustainable', and said the government would stop top-up grants - almost halving its funding and putting the service in jeopardy.
READ: All JET staff at risk of redundancy as government caps funding
After public backlash, it was told it would receive a budget £2.7 million in 2026 - the total of the core funding plus top-up grants given in 2025.
READ: Government reverses decision to cut JET's funding
For 2027, it will receive £200,000 less than that, at £2.5 million.
Now, it is one 'base budget', that the government says will provide 'greater certainty'.
Chair of JET Dan Perkins said:
“We are particularly grateful to the Chief Minister and his team for securing this outcome.
"The recognition of both the importance of JET’s work and the realities of delivering these services today has been critical.
"This commitment provides important certainty for the Islanders we support and for our staff, allowing us to plan ahead with confidence. We look forward to building on this with the Government.”
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