Tax cuts can stimulate growth — the idea is that if people are left with after-tax income, then they can spend it on more/other goods. It can also increase rates of saving and investment which has a positive effect on the economy.

However, cutting taxes is often not as simple as it seems, because of how the cuts will differ depending on how high or low people's incomes are. There is [an argument] (https://www.investopedia.com/articles/07/tax_cuts.asp) for tax cuts being against the interest of those who are lower on the earning scale — because those who earn more benefit more from cuts (if there is a sales tax cut of 1%, someone buying an expensive product will see a higher reduction than someone buying a cheaper version). And because tax cuts reduce government revenue, the loss has to be made up by cutting spending — which can negatively affect those with lower income who rely on government resources.

Studies have also shown that [tax cuts aimed at lower earners are more likely to be productive] (https://www.lse.ac.uk/News/Latest-news-from-LSE/2020/L-December/Tax-cuts-for-the-rich) than those aimed at higher earners — because they'll be more likely to spend the extra money and feed it back into the economy.

So ultimately — tax cuts can stimulate growth. But generally, cuts that are aimed at lower-income consumers will be more likely to grow the economy. A lot depends on which sectors the cuts are made in.