Your household presents a tale of two financial realities, Sir: your personal 29.7% savings rate is genuinely strong at nearly £2,700 monthly surplus, but this masks a critical structural problem—your joint finances show a -79.4% savings rate, meaning combined household spending exceeds combined income by roughly £1,500 each month. The joint account is systematically underwater, which will erode your liquid assets faster than your personal contributions can offset if this dynamic persists. On the positive side, your investment portfolio (£131,089) substantially exceeds your mortgage liability (£170,323), and your total net worth sits at £620,044—the pension (£187,484) forms a respectable foundation—but the joint spending pattern demands immediate attention. Systems nominal, but household cash flow architecture requires recalibration.