Taxes will go up, particularly for higher earners.
You could tax the higher earners 100% and it is still a drop in the ocean compared to the debt we're running up.
EVERYONE will have to pay more tax and/or NIC. I can foresee the NIC exemption on pensions and workers over retirement age being scrapped so the tax burden is spread over a lot more people.
Workers (especially middle earners) are the ones worst affected by this shut down, and they're the ones already paying tax, nic, student loans, workplace pensions, and lose child benefit if earning over £50k - there's a limit to how much more you can screw out of them.
The govt will be looking at others who are paying relatively lower amounts of tax/nic - pensioners, self employed, those living on investments (property/dividends/trusts/foreign income), etc.
A middle earning worker could have deductions of 50% easily from their pay packet. A pensioner on the same income, deductions of only 20%.
I think we'll also see tax incentives on putting money into pensions reduced, not just for higher earners, but for normal/average workers too.
And look at high earners like a GP on £125k - actively reducing working hours to avoid the 62% marginal tax rate, so going part time to get their wage below £100k - we have to scrap that kind of punitive tax as we need workers to work. We don't need punitive taxes that almost force workers to reduce their hours, refuse promotions and invest in pensions to reduce their tax.
Taxes will increase in all areas, young, middle and old. Spending taxes such as VAT will also increase and maybe even zero rated items will become VATable at 5% (perhaps food). Alcohol, food, insurance, flight taxes all up.
If people want a better funded NHS, better funded public services, everyone will have to pay more, especially to start paying down the debt taken out over the next few months. Those who think it can all be afforded by "taxing the rich" or trying to clamp down on multinationals are, frankly, deluded - it's a numbers game - tens of millions of ordinary people versus a tiny number of "rich". We're all in this and will all pay for it, one way or another, there'll be no-one hiding from it.