export type GstBreakdown = {
    taxableAmount: number;
    cgstAmount: number;
    sgstAmount: number;
    igstAmount: number;
    preRoundTotal: number;
    netAmount: number;
    roundOff: number;
};
/**
 * Monthly O&M line: CGST/SGST on taxable (intra-state). IGST left zero unless extended later.
 */
export declare function computeGstOnTaxable(taxableAmount: number, cgstRatePercent: number, sgstRatePercent: number): GstBreakdown;
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