Contractual GST reimbursement in works contracts depends on tax-risk clauses and cannot alter statutory compliance obligations.
GST liability for a works contractor is governed by statute, while reimbursement of incremental GST from an employer depends on the contract's allocation of tax risk. An inclusive-tax clause must be read with change-in-law, price-adjustment, tender and amendment terms. Contract-wise reconciliation of pre-transition and post-transition work may support a supplementary agreement and revised GST-inclusive value where contractual entitlement exists. It cannot alter statutory valuation, return, limitation, interest or penalty requirements, which remain governed by GST law.