Roth Annual Contribution Limit 2024. The contribution limits for a backdoor roth ira are the same as those for traditional and roth iras. The irs has raised the annual contribution limit for roth 401(k)s to $23,000 for 2024.

For those aged 50 and older, the limit is $8,000, which. At certain incomes, the contribution amount is lowered until it is eliminated completely.