Theresa May has insisted Britain's offer of a Brexit fee around £40bn will be "off the table" if there is no final deal on a future UK partnership with the EU.
Having returned from Brussels last week with a draft agreement on initial divorce matters, the Prime Minister faced a 105-minute grilling by MPs on the terms of the deal struck on the first phase of Brexit negotiations.
Mrs May confirmed the UK has consented to a financial settlement worth between £35bn-39bn; agreed measures to protect the rights of EU citizens in the UK; and made a commitment to there being no hard border on the island of Ireland.
The Prime Minister hailed a "new sense of optimism" in Brexit negotiations, with "good news" for both Leavers and Remainers who want a "smooth and orderly" departure from the EU.
But, Mrs May repeated her warning "nothing is agreed until everything agreed" as she predicted there could yet be an uneasy path ahead.