Aeroplan 110% bonus: 1.79¢/pt sounds great but taxes push it to 2.06¢. Tight play.

Air Canada's buy-points promo runs through July 19, offering up to a 110% bonus on 90,000+ points purchased. That drops the base cost to 1.79 Canadian cents per point, but provincial GST/HST—up to 15% in some provinces—bumps the real cost to 1.88–2.06¢ each. The house values Aeroplan at 1.5¢ per point, so you need to redeem at 2.0–2.1¢ or better to break even. This isn't a no-brainer; it's a targeted buy for specific high-value awards only.