I’ve just heard of someone doing that and it ended badly, but that was because the person over contributed. I wonder if it would be legal/smart for me to do that? I don’t make enough to max out my TFSA and don’t take risks investing (only invest in global ETFs and bonds).
For a regular personal loan it might be close. I can say over the last year my TFSA did a little better than the rate on my line of credit, but that’s just an anecdotal data point. Where it usually makes more sense is something like having a mortgage, which is generally a lower rate, making the minimum payments on a long amortization period and using any extra cash to invest. For a minimal risk investment like GICs and such the return is minimal. For a longer horizon, more volatile equity investments will do better, but also more risky for short term gains.
Yeah, there might be some slight gain to be made especially now with interest rates falling again. But my feeling is OP is young and probably would benefit more from building up an emergency fund if they’re feeling a bit cash poor.