Low-documentation mortgages suit borrowers who cannot produce two complete tax returns—often sole traders or recently incorporated businesses. Instead, income is evidenced by 12 months’ BAS, six months’ business bank statements or an accountant’s declaration. LVRs up to 90 % are available; interest rates sit roughly 0.20–0.60 % above prime loans. Loans can be variable, fixed or split, with offset and redraw. After two full financial-year returns are lodged, refinancing to a mainstream product can remove the rate premium and any risk fee.